CN201347829Y - Engine high pressure oil rail - Google Patents
Engine high pressure oil rail Download PDFInfo
- Publication number
- CN201347829Y CN201347829Y CNU2008202349110U CN200820234911U CN201347829Y CN 201347829 Y CN201347829 Y CN 201347829Y CN U2008202349110 U CNU2008202349110 U CN U2008202349110U CN 200820234911 U CN200820234911 U CN 200820234911U CN 201347829 Y CN201347829 Y CN 201347829Y
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- CN
- China
- Prior art keywords
- rail
- pressure oil
- high pressure
- oil
- rail body
- 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.)
- Expired - Fee Related
Links
- 230000006837 decompression Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
An engine high pressure oil rail comprises an oil rail body, a set of injector seats and a set of fixed supports, wherein a high pressure oil pipe mouthpiece and a rail pressure sensor mouthpiece are distributed on the oil rail body, and a pipe body is plugged by pipe body covers at both ends through cylindrical plugs. The engine high pressure oil rail is characterize din that the fixed supports are welded with the adjacent injector seats into a whole, the high pressure oil pipe mouthpiece and the rail pressure sensor mouthpiece are symmetrically arranged on the oil rail body, a set of fixed supports and a set of injector seats are also symmetrically arranged on the oil rail body. Due to that the high pressure oil pipe mouthpiece and the rail pressure sensor mouthpiece are symmetrically arranged on the oil rail body and the injector seats and the fixed supports are melted into a whole and the end covers are plugged by the cylindrical plugs, when the needs of high pressure and high temperature are satisfied, the structure is simple and compact, the fixation is reliable, and the influences, which are caused by vibration, on an injector, the sensor mouthpiece and the high pressure oil pipe mouthpiece are reduced to the largest extent, and the stress concentration value is also reduced.
Description
Technical field
The utility model relates to a kind of engine high pressure oil rail, particularly relates to a kind of high pressure oil rail of direct spray petrol engine in cylinder.
Background technique
The in-cylinder direct fuel-injection engine charge oil pressure is very big, requires oily rail can bear high pressure-temperature.The conventional oil rail can't meet the demands.In order to satisfy the requirement of high pressure-temperature, present existing high pressure oil rail volume and weight is bigger, installs and fixes a little manyly, and engine arrangement is had relatively high expectations.Vibration is bigger to oil sprayer and pressure sensor interface influence.After the oily rail end cap sealing of structure, stress is concentrated also bigger at present.
Chinese patent 200520140505.4 discloses a kind of gasoline device high pressure oil rail, oily rail body with hollow of closed at both ends, the oil sprayer that be intervally distributed with support, oil-feed lining on the oil rail body, is communicated with each oil sprayer hangs storehouse, sensor bush, Decompression valves lining, described oil-feed lining, hang with oil sprayer that each oil sprayer is communicated with and all to be provided with the through hole that is connected with oily rail body in storehouse, sensor bush, the Decompression valves lining, and all form one with oily rail body; Oil return lining vertical fixing is provided with the through hole that is connected with the Decompression valves lining in it on the Decompression valves lining.Its deficiency is, support and oil sprayer hang the storehouse apart arrangement, not only arranges numerous and diversely, and effectiveness in vibration suppression is also good inadequately.
Summary of the invention
The purpose of this utility model is to provide a kind of engine high pressure oil rail, solves the big technical problem of vibration that exists in the available engine high pressure oil rail.Reduce to vibrate influence to greatest extent to oil sprayer, sensor interface, high-pressure oil pipe interface.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of engine high pressure oil rail comprises oily rail body, one group of oil injector seat and one group of fixed support; Distributed on the oil rail body high-pressure oil pipe interface and rail pressure sensor interface, body lid in two ends adopts plunger shutoff body; It is characterized in that: described fixed support and adjacent oil injector seat are integrally welded.
In order to reduce the influence of oil pressure, described high-pressure oil pipe interface and rail pressure sensor interface are symmetrical arranged at oily rail body.
In order to reduce vibration, described one group of oil injector seat and one group of fixed support are symmetrical arranged at oily rail body.
Good effect of the present utility model: because symmetric arrangement sensor interface and the position of high-pressure oil pipe interface on oily rail body body; Oil injector seat and fixed support combine together; And employing plunger end cover structure.Under the requirement of satisfying high pressure-temperature, this is simple and compact for structure, and is fixing reliable.Can reduce to vibrate influence to greatest extent, reduce the stress lumped values oil sprayer, sensor interface, high-pressure oil pipe interface.
Below with reference to drawings and Examples, the utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the D structure schematic representation of the utility model high pressure oil rail.
Fig. 2 is the sectional view of Fig. 1.The connecting relation of signal high-pressure oil pipe interface, oily rail body, fixed support, oil injector seat.
Fig. 3 is the utility model high pressure oil rail and anti-oil sprayer rotational structure schematic representation.
Among the figure: 1, oily rail body; 2, high-pressure oil pipe interface; 3, rail pressure sensor interface; 4, body end cap; 5, first fixed support; 6, first oil injector seat; 7, second fixed support; 8, second oil injector seat; 9, the 3rd fixed support; 10, the 3rd oil injector seat; 11, the 4th fixed support; 12, the 4th oil injector seat; 13, oil sprayer; 14, boss.
Embodiment
As shown in Figure 1, 2, a kind of engine high pressure oil rail (is example with the four cylinder engine) comprises oily rail body 1, first fixed support 5, first oil injector seat 6, second fixed support 7, second oil injector seat 8, the 3rd fixed support 9, the 3rd oil injector seat 10, the 4th fixed support 11 and the 4th oil injector seat 12.Distributed on the oil rail body 1 high-pressure oil pipe interface 2 and rail pressure sensor interface 3, two ends body lid 4 adopts plunger shutoff bodys.Described fixed support and oil injector seat are integrally welded.Promptly adopt 4 immovable points to be distributed near the oil injector seat.
Described oily rail body is a cylindrical tube, is satisfying the volume requirement, and under the situation of requirement of strength, choose reasonable internal diameter and wall thickness allow the volume and weight minimum.
The faying surface of described high-pressure oil pipe interface and oily rail body is an arc, and there is the outside thread that connects with high-pressure oil pipe high-pressure oil pipe interface end.
The faying surface of described sensor interface and oily rail body is an arc, and there is the internal thread that connects with rail pressure sensor sensor interface inside.
The faying surface of described fixed support and oily rail body is an arc, and bolt hole is set above the fixed support, and is drilled with auxiliary hole, is convenient to welding, and the through hole with oily rail body UNICOM is arranged.
As shown in Figure 3, described oil injector seat and fixed support are that the plane connects, and the design of anti-oil sprayer rotation is arranged simultaneously.The boss 14 that is provided with on the oil injector seat on groove and the oil sprayer 13 cooperates, and can prevent oil sprayer rotation and location like this.
Claims (7)
1, a kind of engine high pressure oil rail comprises oily rail body, one group of oil injector seat and one group of fixed support; Distributed on the oil rail body high-pressure oil pipe interface and rail pressure sensor interface, body lid in two ends adopts plunger shutoff body; It is characterized in that: described fixed support and adjacent oil injector seat are integrally welded.
2, engine high pressure oil rail according to claim 1, it is characterized in that: described high-pressure oil pipe interface and rail pressure sensor interface are symmetrical arranged at oily rail body.
3, engine high pressure oil rail according to claim 1 and 2, it is characterized in that: described one group of oil injector seat and one group of fixed support are symmetrical arranged at oily rail body.
4, engine high pressure oil rail according to claim 3, it is characterized in that: described oily rail body is a cylindrical tube.
5, engine high pressure oil rail according to claim 3, it is characterized in that: the faying surface of described high-pressure oil pipe interface and oily rail body is an arc, there is the outside thread that connects with high-pressure oil pipe high-pressure oil pipe interface end.
6, engine high pressure oil rail according to claim 3, it is characterized in that: the faying surface of described sensor interface and oily rail body is an arc, there is the internal thread that connects with rail pressure sensor sensor interface inside.
7, engine high pressure according to claim 3 oil rail, it is characterized in that: the faying surface of described fixed support and oily rail body is an arc, bolt hole is set above the fixed support and is drilled with the auxiliary hole of being convenient to weld, and through hole with oily rail body UNICOM is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202349110U CN201347829Y (en) | 2008-12-09 | 2008-12-09 | Engine high pressure oil rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202349110U CN201347829Y (en) | 2008-12-09 | 2008-12-09 | Engine high pressure oil rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347829Y true CN201347829Y (en) | 2009-11-18 |
Family
ID=41367299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202349110U Expired - Fee Related CN201347829Y (en) | 2008-12-09 | 2008-12-09 | Engine high pressure oil rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347829Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953885A (en) * | 2011-08-09 | 2013-03-06 | 马自达汽车株式会社 | Attaching method of fuel rail assembly for direct-injection engine |
| CN103429884A (en) * | 2010-12-23 | 2013-12-04 | 罗伯特·博世有限公司 | injector assembly |
| CN103502623A (en) * | 2011-05-02 | 2014-01-08 | 罗伯特·博世有限公司 | Fuel distributor and system with fuel injection valve |
| CN103764996A (en) * | 2012-02-02 | 2014-04-30 | 本特勒尔汽车技术有限公司 | fuel distributor plate |
-
2008
- 2008-12-09 CN CNU2008202349110U patent/CN201347829Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429884A (en) * | 2010-12-23 | 2013-12-04 | 罗伯特·博世有限公司 | injector assembly |
| CN103429884B (en) * | 2010-12-23 | 2016-06-15 | 罗伯特·博世有限公司 | Injector assembly |
| US9745938B2 (en) | 2010-12-23 | 2017-08-29 | Robert Bosch Gmbh | Injector system |
| CN103502623A (en) * | 2011-05-02 | 2014-01-08 | 罗伯特·博世有限公司 | Fuel distributor and system with fuel injection valve |
| CN103502623B (en) * | 2011-05-02 | 2016-10-12 | 罗伯特·博世有限公司 | Fuel distributor and system with fuel injection valve |
| CN102953885A (en) * | 2011-08-09 | 2013-03-06 | 马自达汽车株式会社 | Attaching method of fuel rail assembly for direct-injection engine |
| CN102953885B (en) * | 2011-08-09 | 2015-10-28 | 马自达汽车株式会社 | The direct injection ic engine assembling method of fuel rail assembly |
| CN103764996A (en) * | 2012-02-02 | 2014-04-30 | 本特勒尔汽车技术有限公司 | fuel distributor plate |
| CN103764996B (en) * | 2012-02-02 | 2016-03-16 | 本特勒尔汽车技术有限公司 | fuel distributor plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |