CN101255812A - Reducing reagent supply system of internal-combustion engines and connecting component for connecting heating liquid conduit pipe thereof - Google Patents
Reducing reagent supply system of internal-combustion engines and connecting component for connecting heating liquid conduit pipe thereof Download PDFInfo
- Publication number
- CN101255812A CN101255812A CNA2008100810709A CN200810081070A CN101255812A CN 101255812 A CN101255812 A CN 101255812A CN A2008100810709 A CNA2008100810709 A CN A2008100810709A CN 200810081070 A CN200810081070 A CN 200810081070A CN 101255812 A CN101255812 A CN 101255812A
- Authority
- CN
- China
- Prior art keywords
- reducing agent
- supply system
- plug
- convex
- agent supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a reductant supply system for a waste gas cleaning catalyst ( 1 ) of an internal combustion engine, particularly a motor vehicle, comprising a reductant tank ( 3 ) for the storage of reductants, at least one electrically heatable fluid duct ( 6, 8 ) for the conveyance of reductant from the reductant tank ( 3 ) to a waste gas cleaning catalyst ( 1 ), a pump ( 5 ) to pump the reductant via the fluid duct ( 6, 8 ) from the reductant tank ( 3 ) to the waste gas cleaning catalyst ( 1 ), and a plug-in connection ( 10, 11 ) for connecting sections of the fluid duct ( 6, 8 ) in a fluid-conveying manner and/or connecting the fluid duct in a fluid-conveying manner to a component of the reductant supply system, wherein the plug-in connection additionally forms an electric connection line ( 12, 13, 14 ); which in operation conveys an electrical heating current for heating of the fluid duct ( 6, 8 ). The invention relates also to a plug-in connection ( 10, 11 ) for connecting a heatable fluid duct section ( 8 a, 8 b) as well as a female connector ( 10 ) and a male connector ( 11 ) of such plug-in connection.
Description
Technical field
The present invention relates to a kind of reducing agent supply system of exhaust gas purifying catalyst, this catalyzer is standard set-up in motorcycle.This reducing agent supply system comprise the reducing agent case, can electrically heated fluid conduit systems and pump, this pump makes reducing agent be pumped into the catalyzer by fluid conduit systems from the reducing agent case.For example, this reducing agent supply system is disclosed among the DE102005029290A1.
Background technique
In this application, according to the ordinary language in the motorcycle technology, the term exhaust gas purifying catalyst is used for the device of waste-gas cleaning, and this device comprises the catalyzer in the chemical sense.This exhaust gas purifying catalyst is installed in the motorcycle as standard set-up.Usually, before it arrived the zone of the exhaust gas purifying catalyst that comprises the catalyzer on the chemical sense, reducing agent was added in the exhaust flow.
In exhaust gas purifying catalyst, nitrogen oxide is reduced into nitrogen by reducing agent.Resulting ammonia is usually as the reducing agent on the primitive meaning from urea.Therefore, in this application, reducing agent also comprises any initial product such as urea, can obtain the actual reducing agent on the chemical sense from this urea, as ammonia.
Under the situation of frost, as the ammonia source, the needed urea solution of exhaust gas purifying catalyst can freeze.Therefore, can be used for reducing agent supply system by electrically heated fluid conduit systems, therefore, even under the situation of serious frost, urea solution can be pumped in the catalyzer easily.
Because the analytical product of urea is perishable, therefore the surface of the element of the conveyance fluid of reducing agent supply system must be formed by corrosion-resistant material at least.Even tiny leakage point also can cause reducing agent supply system to lose efficacy, and can damage motorcycle.And, even urea in a small amount and its analytical product can produce odour nuisance.
Summary of the invention
The purpose of this invention is to provide the good mode of a kind of cost benefit, in this mode, vehicle can dispose reducing agent supply system, this reducing agent supply system helps as far as possible promptly supplying in the exhaust gas purifying catalyst under the situation of frost, satisfies impervious peak demand and can install as far as possible easily.
The reducing agent supply system of the feature of this purpose by having claim 1 is realized.
By the present invention, but simplified the installation of the electric heating fluid conduit systems of reducing agent supply system widely.Quite bother although handle quite long all-in-one-piece fluid conduit systems, fluid conduit systems of the present invention is made up of the easy to handle tracheal portion, and these tracheal portions can be assembled easily by convex and spill plug-in connector.The plug-in connector of reducing agent supply system of the present invention has also formed electrical interconnection, and this electrical interconnection is carried the heating current that is used for heating the fluid conduit systems part that assembles during operation.Therefore, it partly is possible connecting fluid conduit systems in the mode of conveyance fluid, and realizes the electrical connection of fluid conduit systems heating concomitantly.
Except the mode with conveyance fluid connects the part of fluid conduit systems of reducing agent supply system, plug-in type link of the present invention also can be used for the mode of fluid conduit systems with conveyance fluid is connected in the element of reducing agent supply system, the plug-in type link also constructs electrical interconnection thus, and this electrical interconnection is carried during operation and is used for the heating current of heated fluid conduit.Therefore, fluid conduit systems can be connected to pump with considerably less expense or be connected to reducing agent supply system such as any other element of case or metering valve on.
Preferably, plug-in type link, the especially concave portions of plug-in type link are can be electrically heated, for example when electrical interconnection is used to carry out resistance heating.
The invention still further relates to a kind of be used for heating liquid conduit pipe part for example be connected to plug-in type link on pump or other fluid conduit systems part, in particular for the plug-in type link of motorcycle and the convex-shaped connector and the spill connector of this plug-in type link.
Description of drawings
Explain other details of the present invention and advantage with reference to accompanying drawing by embodiment.Here the feature of being explained can realize the target of claim.Each embodiment's same part or corresponding mutually part are denoted by the same reference numerals in the accompanying drawings, wherein:
Fig. 1 shows embodiment's the schematic representation of the urea supply system of the exhaust gas purifying catalyst that is used for motorcycle;
Fig. 2 shows the embodiment of the plug-in type link of two fluid conduit systems parts that connect reducing agent supply system;
Fig. 3 shows another embodiment of plug-in type link; And
Fig. 4 shows another embodiment of plug-in type link.
Embodiment
Fig. 1 has illustrated the exhaust gas purifying catalyst 1 of motorcycle and relevant reducing agent or urea supply system 2 with schematic representation.Nitrogen oxide in the exhaust gas purifying catalyst 1 is reduced into nitrogen by ammonia.Obtain ammonia from urea solution, this urea solution is provided by urea supply system 2 and joins among the exhaust flow 1b that leads in the catalyzer 1 by metering valve 1c.
Urea supply system 2 shown in Figure 1 comprises: reducing agent case 3, and it is used to store urea solution 4; The heatable fluid conduit systems 6,8 of electricity, it is used for reducing agent is transported to exhaust gas purifying catalyst 1 from reducing agent case 3; And pump 5, it is used for reducing agent is pumped into catalyzer 1 from the outlet 7 of reducing agent case 3 by fluid conduit systems 6,8.
Come control pump 5 and catalyzer 1 by control gear 9, this control gear 9 is opened the electric heating of reducing agent case 3, pump 5 and fluid conduit systems 6,8 under the situation of frost.Preferably, pump 5 is arranged to adjacent tank 3, makes that tracheal portion 6 can be so short, so that it can sufficiently be heated by case and/or pump heating system, so the intrinsic heating of tubulature part 6 can be saved.
As shown in Figure 2, be assembled into fluid conduit systems 8 by many tracheal portion 8a, 8b, these tracheal portions 8a, 8b are connected by plug-in type link shown in Figure 2 10,11 modes with conveyance fluid.Plug-in type link 10,11 has constituted electrical interconnection again, and this electrical interconnection is carried during operation and is used for heating the fluid conduit systems part 8a that assembles, the heating current of 8b.In shown embodiment, electric connection line comprises element 12,13 and 14, and these elements will at length be explained hereinafter.
Attachment portion 8a, the 8b of fluid conduit systems 8 are formed by corrosion resistant metal tube, and preferably, this metal tube is formed by stainless steel, as formed the electrical interconnection 12,13,14 of this metal tube contact plug-in type link 10,11 by the V4A steel.Between the end of fluid conduit systems 8, apply voltage and be used to heat, so electric current flows through metal tube.By the metal tube that makes electric current flow through them to come heated fluid conduit 8, therefore these metal tubes are used as electrical resistance heating element.And the linking route 12,13,14 of plug-in type link is electrically connected two fluid conduit systems part 8a, 8b, and therefore two fluid conduit systems part 8a, 8b are electrically connected in the mode of connecting.This has following advantage, promptly can monitor this heating easily.But the connecting line 12,13,14 of plug-in type link is used as voltage termination and makes the end ground connection of the fluid conduit systems part relative with inserting link also is possible.
Structure with especially favourable as electrical resistance heating element, therefore also is convenient to heat the plug-in type link by at least a portion of inserting the formed linking route of link.This will be explained hereinafter in further detail.
In this mode, in shown reducing agent supply system, heating system and fluid conduit systems 8 form one, thereby are convenient to whole heating.
Plug-in type link 10,11 comprises the spill connector 10 with plastomer 10a, and the convex-shaped connector 11 of plug-in type link is inserted in the spill connector 10.Embodiment's shown in Figure 2 spill connector 10 is built into the place, two ends and is used to insert convex-shaped connector 11.This method has such advantage, the convex-shaped connector 11 that is the plug-in type link can be connected at every end place of the fluid conduit systems part 8a, the 8b that are connected, therefore in order to assemble, it is possible that any end of fluid conduit systems part 8a, 8b is connected in the spill connector 10.In this method, also be possible thereby structure spill connector 10 inserts the cross member that three or more convex-shaped connectors 11 for example have the socket T of three links 11 with formation or have four links 11.
In shown embodiment, the electric contact piece of spill connector 10 13 is formed by metal spring spare, and this spring part is preferably formed by stainless steel, is formed by the V4A steel in particular, and electric contact piece 13 leans against on the outside of the convex-shaped connector 11 that is inserted into flexibly.Metal spring spare 13 also is used for O shape ring 15 and/or other seal element are locked on the correct position of spill connector 10.The outside of spring part 13 leans against on the metal ring 20, and this metal ring 20 is embedded in or is inserted in the spill connector 10, and this metal ring and part 14 are electrically connected.In this method, convex-shaped connector 11 can be inserted in the spill connector 10 and cause and electrically contact along any one direction.
In shown embodiment, the part 14 of electrical interconnection is constructed to heat helical 14, and when it was embedded in wherein, this heating helical 14 carried by the plastomer of spill connector 10.In this method, under situation without any other connecting line, the heating current by spill connector 10 delivery pipes 8 but also to heat spill connector 10 concomitantly be possible not only.
The plastomer 10a of spill connector 10 can be an injection moldings, and this injection moldings can be around carrying or heating element 14 and molded.Replace heating coil 14, can use the metal tube of other metalwork such as lead frame or punching.Replace being embedded among the plastomer 10a, conveying or heating element 14 can also be wrapped on the plastomer 10a as electric wire.Because the heating element 14 of linking route does not produce with urea solution and contacts in this embodiment, so this material needn't have special corrosion resistance.
Structure is to use composite by other possibility of the conductor 14 that the plastomer 10a of spill connector 10 is carried, and this composite is formed and can conducts electricity owing to having conductive mixture such as graphite and/or metal granule.In this method, the plastomer 10a of spill connecting body 10 can provide the conductor 14 of contact 13 and linking route.Realize and outside electrical insulation mutually by heat insulator 16 as by the plasticity cover that surrounds spill connector 10.
In shown embodiment, the part 14 of the electrical interconnection that spill connector 10 is supported is constructed to heating resistor.In order to ensure preparation is to use reducing agent supply system fast in motorcycle, even under the situation of low-down outdoor temperature, the heating resistor 14 of spill connector 10 should be configured to be at least the heating power of 2Watt, is preferably 4Watt at least.Shown embodiment's heating coil 14 is configured to the heating power of 5Watt.Therefore, the heating of the heating of plug-in type link 10,11 and fluid conduit systems 6,8 realizes by a series of the connection, because in this method, surveys that to be used to reduce the thermal defect that adds of supply system 2 be very easy, and advantageously, do not need extra supply terminal.
Therefore encase the plug-in type link 10,11 shown in Fig. 2 by heat insulator 16, can use the fluid conduit systems part 8a, the 8b that heated and the heating power of spill connector 10 as far as possible effectively.Heat insulator 16 can be constructed to encapsulate two and half housings of spill connector 10.The another kind of possibility of structure heat insulator 16 is to cover spill connector 10 with the thermal insulation composite.Foamed material is the specially suitable material that is used for heat insulator 16.In order to obtain thermal insulation preferably, the composite that therefore is used for heat insulator 16 has less than half of the thermal conductivity of the conveyance fluid composite of spill connector 10, especially be favourable less than 1/5.
Plug-in type link in motorcycle be installed in produce during the driving more heats, as near under the locational situation of catalyzer, heat insulator 16 can also be used as heat screen, and in this case, is provided with ceramic coating.
In shown embodiment, the convex-shaped connector 11 of plug-in type link is constructed to plastomer 17, and this plastomer slides on fluid conduit systems part 8a, 8b.Plastomer 17 has metallic sheath 12 on its front end.Metallic sheath 12 on convex-shaped connector 11 outsides has constituted the element of the electrical interconnection of plug-in type link.When metallic sheath 12 had the conducting loop-shaped zone, this was particularly advantageous, and therefore, under the situation of convex-shaped connector 11 with respect to the whichever rotation of spill connector 10, it is possible that formation electrically contacts.
In shown embodiment, preferably formed by special steel, especially by the end of the formed metallic sheath 12 contacting fluid tracheal portion 8a of V4A steel, 8b, this fluid conduit systems part is configured as metal tube.It is particularly advantageous making metallic sheath 12 be connected on the end of fluid conduit systems part 8a, 8b tightly.It is suitable especially to this that all-in-one-piece engages, and these all-in-one-pieces engage can be by welding, preferably can being obtained by laser bonding.Therefore in this method, can realize that heating current (heat current) flows through the whole length of fluid conduit systems part 8a, 8b, and its whole length is heated up to its outermost end.
In shown embodiment, be connected metallic sheath 12 by just installing with the plastic components 17 of convex-shaped connector 11.In this method, can prevent to overlap 12 and move with respect to plastic component 17.In shown embodiment, to realize just installing by the attachment hole in the cover 12, the door bolt 18 of synthin 17 is clamped in this attachment hole.Metallic sheath 12 is preferably slotted on its rear end.This has such advantage, and promptly when sliding on plastic component 17, how many metallic sheaths stretchs out, so assembling connecting piece 11 just is more prone to.
The convex-shaped connector 11 of plug-in type link is provided with (referring to Fig. 3) chamber 19 that is used for fluid conduit systems part 8a, 8b insulating bush 22 in its rear end.Polyamide or polyphthalamide (poly-phthaldiamid) are particularly suitable as the material of plastic component 17 of the convex-shaped connector 11 of the plastomer 10a that is used for spill connector 10 and plug-in type link.
Fig. 3 shows another embodiment with the plug-in type link that can heat spill connector 10.The main distinction of embodiment described in Fig. 2 example is, 10 fluid conduit systems part 8a that accept to have above-mentioned the sort of convex-shaped connector 11 on a side of spill connector.Be not connected in the electrical interconnection and therefore can be inserted in other groove of spill connector 10 with the corresponding link 21 of link well known in the prior art in principle.By example, link 21 can be used for fluid conduit systems is connected in metering valve 1c, pump 5 or the case 3.
Be that at the spill connector 10 shown in Figure 3 and the main distinction between the spill connector 10 described in Fig. 2 example electrical interconnection 14 leads to the outer edge region of joiner from spill connector 10.Can use the part 14a of the linking route 14 that stretches out from the plastomer 10a of spill connector 10 to come for example the heating system of fluid conduit system to be connected to the power supply.During without any electrical pickoff, the spring element 13 on the respective side of spill connector 10 needn't be formed by metal, but can form cost-effective plastic component at link 21.
Joiner shown in Figure 3 is heatable when linking route 14 is constructed to electrical resistance heating element.Similar with embodiment shown in Figure 2, the plastomer 10a of spill connector 10 is provided with electrical resistance heating element 14, and this electrical resistance heating element can be constructed to heating coil.Electrical resistance heating element 14 is embedded among the plastomer 10a of spill connector 10.Shown embodiment's advantage is that linking route 14 is convenient to be electrically connected the heating that is used for fluid conduit systems 8a in simple mode.By the part 14a of linking route, it is possible that the metal tube that constitutes fluid conduit systems 8a is connected in the power supply.
Fig. 4 shows another embodiment of plug-in type link 10,11 of the urea supply system 2 of the exhaust gas purifying catalyst 1 that is used for motorcycle.Similar with the embodiment shown in Fig. 2 and 3, form the plug-in type link by spill connector 10 and the convex-shaped connector 11 that cooperates.In the embodiment shown in fig. 4, the plastomer 10a of spill connector 10 has the convex-shaped connector 11 that three attachment holes are suitable for installing the plug-in type link.Two convex-shaped connectors 11 that interconnect and be used for installing conveyance fluid by fluid passage 23 in these attachment holes, thus for example be connected on the element of other conveyance fluid of fluid conduit systems part 8a, 8b, pump or urea supply system.The 3rd hole is communicated in the fluid passage 23 by second channel 24a, and this fluid passage 23 is communicated with two other attachment holes.Therefore the 3rd attachment hole is not the convex-shaped connector 11 that is used for installing conveyance fluid, but is used to have the link 11a of electric device 24, and this electric device 24 extends in the fluid passage 23 by second channel 25.
Element 24 can be probe such as temperature and/or pressure transducer.It also is possible that element 24 is constructed to heating pole, this heating pole heated fluid passage 23.Heating pole can be the heating equipment or the assisted heating device of only described connection.This heating pole 24 can be longer than shown in Figure 4, and it also can extend up to convex-shaped connector 11 and extend in the fluid passage 23, therefore the fluid in the convex-shaped connector 11 that is inserted into of heating also.
Second channel 25 preferably is narrower than fluid passage 23.When it was in the embodiment shown in fig. 4 situation, preferably, the external diameter of electric device 24 was corresponding with the internal diameter of second channel 25, therefore can prevent that fluid from penetrating in the second channel 25.
In order to form electrically contacting of the convex-shaped connector 11a that is inserted in the 3rd hole, therefore plastomer 10a is provided with other electric contact area 20, this electric contact area 20 is connected to electrical interconnection 14, and this electrical interconnection 14 is supported by plastomer 10a and carries heating current to add fluid conduit systems 8a, the 8b that is thermally connected in the spill connector 10 during operation.In this method, the heating of the electrical interconnection 12,13,14 of plug-in type link and the heating system of urea supply system can be connected in the supply lines easily, and therefore be connected in the electric system of motorcycle, because convex-shaped connector 11 conveyance fluid, that be not inserted in the 3rd hole can be used for this purpose.As in the situation of two other attachment holes, the seal element 15 that is made of O shape ring is set, making does not have urea solution can flow out the 3rd hole.
If as preferred, spill connector 10 has three measure-alike attachment holes, wherein convex-shaped connector 11,11a can mechanically join in each attachment hole in the same manner, manufacturing expense can be reduced so, although because the function difference of each attachment hole, but with regard to machinery and sealing, can use identical parts.
In the embodiment shown in fig. 4, convex-shaped connector 11 is inserted in each of two attachment holes being connected by fluid passage 23.The connector 11 of pairing is connected on the end of heated fluid conduit systems part 8a, 8b.But according to Fig. 3, thereby it also is likely constructing that in these attachment holes one is connected on metering valve, pump, the case or is connected in other part of urea supply system.The convex-shaped connector 11 of these elements of urea supply system usually is not provided with heating system.In these cases, it is favourable being used for heating pole 24 use probe passages, and wherein this heating pole extends up to arriving link 11, and this link 11 is inserted in the fluid passage 23.Therefore heating pole 24 can obviously be longer than shown in Figure 4.
Plug-in type link shown in Fig. 2-4 only is the example of the embodiment of the invention, and these examples do not limit the protection domain of this patent.Other embodiment of plug-in type link of the present invention also is possible.Therefore, under the situation that the plug-in type link is connected with each other two fluid conduit systems part 8a and 8b, formed device is not only such, and promptly two fluid conduit systems part 8a, 8b couple together with the right angle mutually.The attachment hole that fluid conduit systems part 8a and 8b and this fluid conduit systems part 8a and 8b are inserted into can be arranged with any other angle in spill connector 10, especially aims at mutually with the angle of 180 degree.
Mode as an alternative, plug-in type link of the present invention can be constructed by this way, promptly for example it not only connects two fluid conduit systems part 8a and 8b, and connects plural this fluid conduit systems part, for example connects three or four fluid conduit systems parts.By example, three fluid conduit systems parts can be arranged in T shape mode in the plug-in type link, so that all three are in contact with one another.The electric heating of three fluid conduit systems parts can realize dividually, but it also can be combined by three fluid conduit systems parts that have for example shared electric terminals post in plug-in type link center.This post can be connected on the positive pole of vehicle electrical system, and three fluid conduit systems end partly away from the plug-in type link is grounded by inserting another fluid conduit systems part at last simultaneously.For example temperature or pressure transducer can be installed among of these convex-shaped connectors 11 of being used for the fluid conduit systems part sensor and till extending in arriving fluid passage 23, this fluid passage 23 is arranged on the center of plug-in type link.
But, at least one insertion groove of plug-in type link adding of three fluid conduit systems parts also is possible for example being used for, convex-shaped connector 11a with electric device 24 can be inserted in this at least one insertion groove, and this electric device 24 for example can be the sensor probe or the heating pole of pressure or temperature.For this reason, the plug-in type link is criss-cross in the mode below, for example by this way, promptly comes from the shown in Figure 4 plug-in type link relative with the insertion groove that is used for fluid conduit systems part 8a, and the similar insertion groove that is used for the three-fluid tracheal portion is set up.
Under the situation of for example star arrangement, the plug-in type link comprises that the insertion groove more than four is possible.For example, be used for connecting four fluid conduit systems, four insertion grooves partly and can be arranged to cross on the plane, one or two other insertion grooves that for example are used for inserting simultaneously the convex-shaped connector 11a that is used for one or two electric devices 24 can be arranged to perpendicular to four fluid conduit systems plane partly.
The Reference numeral table:
Convex-shaped connector 12 metals that 1 exhaust gas purifying catalyst, 2 reducing agent supply systems, 3 reducing agent tanks, 4 urea solutions, 5 pumps, 6 fluid conduit systems 7 outlet, 8 fluid conduit systems 8a fluid conduit systems part 8b fluid conduit systems parts, 9 control unit 10 spill connector 10a plastic bodies, 11 convex-shaped connector 11a are used for probe 24 or are used for heating pole 24 overlap 13 spring elements, 14 heater coil 15O shapes and encircle hole, door bolt 19 chamber 20 beckets 21 that 16 heat insulation bodies 17 connect plastic component 18 plastic components 17 of parts 11 and connect parts 22 insulation sleeves 23 fluid passages 24 electric devices, such as probe or heating pole 25 second channels
Claims (33)
1. reducing agent supply system that is used for the exhaust gas purifying catalyst (1) of internal-combustion engine, it comprises:
Reducing agent case (3), it is used for the storage and reduction agent;
At least one can electrically heated fluid conduit systems (6,8), and it is used for reducing agent is transported to exhaust gas purifying catalyst (1) from reducing agent case (3);
Pump (5), it is pumped into exhaust gas purifying catalyst (1) from reducing agent case (3) by fluid conduit systems (6,8) with reducing agent; And
Plug-in type link (10,11), it is used for the element that the mode with conveyance fluid connects the part of fluid conduit systems (6,8) and/or fluid conduit systems is connected to reducing agent supply system in the mode of conveyance fluid, thus, the plug-in type link has formed electrical interconnection (12,13,14), and this electrical interconnection is carried in when work and is used for the electric heating electric current of heated fluid conduit (6,8).
2. reducing agent supply system according to claim 1, it is characterized in that, the plug-in type link comprises: spill connector (10) and at least one convex-shaped connector (11), this at least one convex-shaped connector is inserted in the spill connector (10), spill connector (10) has plastomer, at least one fluid passage is by this plastomer, and the part of this plastomer carrying electrical interconnection.
3. reducing agent supply system according to claim 1 is characterized in that, at least a portion (8a, 8b) of fluid conduit systems (6,8) is set to corrosion resistant metal tube, the electrical interconnection (12,13,14) of this metal tube contact plug-in type link.
4. reducing agent supply system according to claim 2 is characterized in that, the line part (14) of the electric connection line that is supported by spill connector (10) is formed by composite, and this composite is made into to conduct electricity by conductive mixture.
5. reducing agent supply system according to claim 2 is characterized in that, is configured to be embedded into metalwork in the composite by the line part (14) of the electric connection line of spill connector (10) carrying.
6. reducing agent supply system according to claim 2 is characterized in that this joiner is heatable.
7. reducing agent supply system according to claim 6 is characterized in that, the line part (14) of the electric connection line that is supported by spill connector (10) is configured for resistance heating.
8. reducing agent supply system according to claim 7 is characterized in that, the heating resistor of spill connector (10) is designed to the heating power of 2Watt at least.
9. reducing agent supply system according to claim 6 is characterized in that, the heating of the heating of plug-in type link (10,11) and fluid conduit systems (6,8) is realized by series connection.
10. reducing agent supply system according to claim 1 is characterized in that, the plug-in type link is sealed by heat insulator (16).
11. reducing agent supply system according to claim 10 is characterized in that, heat insulator (16) is configured to seal two and half housings of spill connector (10).
12. reducing agent supply system according to claim 1 is characterized in that, spill connector (10) is configured at the place, two ends at least and inserts convex-shaped connector (11).
13. reducing agent supply system according to claim 1 is characterized in that, the spill connector (10) of plug-in type link links with the convex-shaped connector (11) that is inserted into.
14. reducing agent supply system according to claim 1 is characterized in that, spill connector (10) is provided with at least one O shape ring (15), the convex-shaped connector that is inserted into (11) of this at least one O shape ring seal plug-in type link.
15. reducing agent supply system according to claim 1, it is characterized in that, the convex-shaped connector of plug-in type link (11) has metallic sheath (12) in its outer installment, and this metallic sheath has constituted the part of the electrical interconnection (12,13,14) of plug-in type link.
16. reducing agent supply system according to claim 15 is characterized in that, metallic sheath (12) is placed on the plastomer (17) of convex-shaped connector (11).
17. reducing agent supply system according to claim 15 is characterized in that, metallic sheath (12) combines with the metal tube of a part that forms fluid conduit systems (6,8).
18. reducing agent supply system according to claim 15 is characterized in that, metallic sheath (12) only electrically contacts with fluid conduit systems part (8a, the 8b) formation that is configured to metal tube with its front end.
19. reducing agent supply system according to claim 15 is characterized in that, metallic sheath (12) has such wall thickness, and promptly the wall thickness with the fluid conduit systems part (8a, 8b) that is configured to metal tube is the same thick at the most for this wall thickness.
20. reducing agent supply system according to claim 1 is characterized in that, the convex-shaped connector of plug-in type link (11) is electrically contacted by metal spring element (13).
21. reducing agent supply system according to claim 20 is characterized in that, this spring element (12) is O shape ring (15) fixedly.
22. reducing agent supply system according to claim 1 is characterized in that, spill connector (10) has the plastomer (10a) that is formed by polyamide or polyphthalamide.
23. reducing agent supply system according to claim 1 is characterized in that, the end of the convex-shaped connector of plug-in type link (11) sealing fluid tracheal portion (8a, 8b).
24. reducing agent supply system according to claim 1 is characterized in that, the convex-shaped connector of plug-in type link (11) is provided with the chamber (19) of the insulating bush that is used for fluid conduit systems (6,8).
25. reducing agent supply system according to claim 2 is characterized in that, spill connector (10) has three insertion grooves of the convex-shaped connector (11) that is used for the plug-in type link.
26. reducing agent supply system according to claim 25 is characterized in that, the convex-shaped connector (11) with rod electric device (24) is inserted at least one insertion groove, and the convex-shaped connector of conducting fluid (11) is inserted in another insertion groove.
27. reducing agent supply system according to claim 25 is characterized in that, the convex-shaped connector of conducting fluid (11) only is inserted among in three insertion grooves two; And convex-shaped connector (11) is inserted into the 3rd insertion groove, and this convex-shaped connector (11) is connected to the linking route (12,13,14) of plug-in type link on the power supply.
28. reducing agent supply system according to claim 25, it is characterized in that, convex-shaped connector (11) is inserted among in three insertion grooves one, this convex-shaped connector is provided with probe or heating pole, this probe or heating pole extend in the fluid passage (23), this fluid passage is communicated with two other insertion grooves, and the convex-shaped connector of conveyance fluid (11) is inserted in these two other insertion grooves.
29. plug-in type link that is used to connect heating liquid conduit pipe part (8a, 8b), wherein plug-in type link (10, the 11) connection and the electrical connection that have produced conveyance fluid carries when this is connected electrically in work to be used for the electric current of heated fluid tracheal portion (8 a, 8b).
30. one kind is used to connect the partly spill connector of the plug-in type link of (8a, 8b) of heating liquid conduit pipe, its middle concave connector (10) has plastomer, this plastomer has the fluid passage of the convex-shaped connector (11) that is used to insert the plug-in type link, and spill connector (10) is provided with the electric contactor (20) of the power line of the convex-shaped connector (11) that is used to contact the plug-in type link; Contactor (20) is connected on the electric connection line (14) that is carried by plastomer (10a), and this electric connection line is carried the electric heating electric current that is used to add at least one fluid conduit systems part (8a, 8b) that is thermally connected on the spill connector (10) during operation.
31. spill connector according to claim 30 is characterized in that, connecting line (14) is suitable for resistance heating.
32. one kind is used to connect the partly convex-shaped connector of the plug-in type link of (8a, 8b) of heating liquid conduit pipe, it comprises metallic sheath (12), this metallic sheath is used for the end of sealing fluid tracheal portion (8a, 8b), the part of the electrical interconnection of the spill connector (10) of this metallic sheath (12) contact matching.
33. convex-shaped connector according to claim 32 is characterized in that, an end of metallic sheath (12) sealing fluid tracheal portion (8a, 8b), the metal tube that this fluid conduit systems partly is configured to and metallic sheath (12) electrically contacts.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007009348.0 | 2007-02-27 | ||
| DE102007009348 | 2007-02-27 | ||
| DE102007026205.3 | 2007-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101255812A true CN101255812A (en) | 2008-09-03 |
Family
ID=39890873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100810709A Pending CN101255812A (en) | 2007-02-27 | 2008-02-26 | Reducing reagent supply system of internal-combustion engines and connecting component for connecting heating liquid conduit pipe thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101255812A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836284A (en) * | 2012-11-22 | 2014-06-04 | Ti汽车富尔达布吕克有限公司 | Quick-release coupling |
| CN104074576A (en) * | 2013-03-27 | 2014-10-01 | 康明斯排放处理公司 | Fluid connectors for reductant systems |
| CN106460604A (en) * | 2014-04-17 | 2017-02-22 | 瓦锡兰芬兰有限公司 | Selective Catalytic Reduction Catalyst Anti-Frost System and Method |
-
2008
- 2008-02-26 CN CNA2008100810709A patent/CN101255812A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836284A (en) * | 2012-11-22 | 2014-06-04 | Ti汽车富尔达布吕克有限公司 | Quick-release coupling |
| CN104074576A (en) * | 2013-03-27 | 2014-10-01 | 康明斯排放处理公司 | Fluid connectors for reductant systems |
| CN104074576B (en) * | 2013-03-27 | 2020-06-02 | 康明斯排放处理公司 | Fluid connector for a reduction system |
| CN106460604A (en) * | 2014-04-17 | 2017-02-22 | 瓦锡兰芬兰有限公司 | Selective Catalytic Reduction Catalyst Anti-Frost System and Method |
| CN106460604B (en) * | 2014-04-17 | 2019-02-12 | 瓦锡兰芬兰有限公司 | Catalyst frost protection system and method for selective catalytic reduction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1926372B (en) | Electrically heated cable lines | |
| US8075020B2 (en) | Pipe fitting for a heatable piping of a SCR system | |
| CN102667132B (en) | Electric heater, heating device and heating system | |
| US10247153B2 (en) | Heating device for a fluid line | |
| CN103477138B (en) | Electric heating medium pipe and method for manufacturing same | |
| CN103998845B (en) | At least partially heatable pipe connector for a heatable media pipe and assembled media pipe with the pipe connector | |
| CN101306746B (en) | Fluid container and reductant supply system with such a fluid container | |
| US20100064670A1 (en) | Reductant Supply System for a Waste Gas Cleaning Catalyst and a Heating Unit Therefor | |
| US8209957B2 (en) | Heatable hose conduit system for an exhaust-gas aftertreatment system of an internal combustion engine | |
| US9708948B2 (en) | Device for supplying fluid media at low temperatures | |
| US20080202108A1 (en) | Reductant supply system for a waste gas cleaning catalyst of an internal combustion engine and a plug-in connection for connecting heatable fluid ducts | |
| DE50009848D1 (en) | PLUG FOR A FUEL PUMP OF A MOTOR VEHICLE | |
| US9366454B2 (en) | Heatable connection apparatus including media-conducting, electrically heatable hoses | |
| CN104071128A (en) | Motor vehicle windscreen wiper windscreen washer liquid distribution system | |
| CN101371096A (en) | Heat exchanger with connection | |
| JP6764275B2 (en) | Heating connector assembly | |
| CN111226069B (en) | Connector for a heatable fluid line, in particular for an SCR system or a water injection system | |
| CN101255812A (en) | Reducing reagent supply system of internal-combustion engines and connecting component for connecting heating liquid conduit pipe thereof | |
| DE102007016789B4 (en) | Heated connection piece for a fluid line | |
| CN102979977A (en) | Fast coupling apparatus for connecting media-carrying lines | |
| US20140029926A1 (en) | Piping for an scr circuit of a motor vehicle | |
| US20170198852A1 (en) | Heatable Tube | |
| US20170211740A1 (en) | Heatable Tube | |
| JP2020513509A (en) | Plug connector | |
| JP2025537417A (en) | Electrically heatable fluid piping for components of an electrochemical energy converter, system for an electrochemical energy converter, and electrochemical energy converter - Patent Application 20070122997 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080903 |