WO2014063681A1 - Intermittierende kupplungsbeölung - Google Patents
Intermittierende kupplungsbeölung Download PDFInfo
- Publication number
- WO2014063681A1 WO2014063681A1 PCT/DE2013/100332 DE2013100332W WO2014063681A1 WO 2014063681 A1 WO2014063681 A1 WO 2014063681A1 DE 2013100332 W DE2013100332 W DE 2013100332W WO 2014063681 A1 WO2014063681 A1 WO 2014063681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- bore
- pump
- transverse bore
- oil
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/108—Lubrication of valve gear or auxiliaries of auxiliaries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
- F04C18/322—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
Definitions
- the invention relates to a pump, in particular a vacuum pump for the
- Brake booster on a motor vehicle having a housing in which a rotor bearing is arranged, in which a rotor is rotatably mounted, wherein the rotor in the region of the rotor bearing has a ⁇ lsteignut for supplying the vacuum pump with lubricating oil.
- Vacuum pumps of the above type can be flanged, for example, on the cylinder head of an internal combustion engine. They are then driven by the camshaft of the internal combustion engine.
- the connection between the camshaft and the vacuum pump is represented by a coupling, in particular a plug-in coupling.
- Pumps of this type have oil supply devices in which oil supply connections in the rotor connect the lubricating oil supply of the internal combustion engine with the internal lubricating oil supply of the vacuum pumps. It is known to arrange the oil supply connections such that the contacting surfaces, or the interfaces between rotor and plug-in coupling, are also connected to the lubricating oil supply.
- plug-in couplings which are partially enclosed by an example. Cylindrical peripheral wall and therefore obstruct a penetrating it oil mist from the outside. Plug-in couplings of the above type should compensate for any existing installation tolerances and therefore may have significant changes in force and movement. Therefore, an insufficient supply of lubricating oil can lead to significant wear and failure of the vacuum pump. It is therefore an object of the invention to provide a pump which solves this problem.
- a pump in particular a vacuum pump for the brake booster on a motor vehicle, comprising a housing, a rotatably mounted therein rotor, at least one arranged in the housing in the rotor bearing ⁇ lsteignut and arranged in the rotor transverse to the longitudinal axis of the rotor transverse bore , which is connectable to the at least one ⁇ lsteignut, wherein the rotor bearing portion is connected to an oil feed hole and wherein the at least one transverse bore cooperates with an axial bore in the rotor, which leads to a coupling portion within a rotor, in which a clutch arranged and by means of a Fastening means with a central, parallel to the longitudinal axis of the rotor extending bore, can be introduced.
- This arrangement has the advantage that in each case only a subset of the upcoming oil volume is introduced into the transverse bore and is conveyed by the fastening means with the central bore in the region of the coupling.
- the rotor has a transverse bore, which is designed to the longitudinal axis of the rotor. This ensures that each revolution of the rotor, the ⁇ lsteignut is only once passed over and a minimum amount of engine oil is used for the lubrication of the clutch. This ensures that enough oil gets into the pump anyway.
- the rotor has a continuous transverse bore. This causes the oil component to be swept over twice per revolution of the rotor. This reduces the time between the loads of the clutch with engine oil and the lubricant supply increases.
- the ⁇ lsierenut is continuously connected to the pump interior.
- the rotor bearing is ideally designed as a sliding bearing and has on the lateral surface at least one annular groove, which serves for better supply of the sliding bearing with lubricating oil. It has proven to be advantageous if the oil feed hole opens into the rotor bearing in the region of the radial groove.
- Another advantage of the invention is the low pressure pulsation with oil supply in the vacuum pump.
- the pressure pulsation described in the prior art is generated by so-called AbSteuer advocates. Offsets occur when the oil path is opened or closed. This happens when a transverse bore is used for intermittent pumping of the interior of the pump and thus has to transport the largest part of the lubricating oil.
- the lubricating oil pressure of the internal combustion engine briefly acts into the inner lubrication region of the vacuum pump, which, depending on the lubricating oil pressure of the internal combustion engine, can lead to corresponding pressure pulsations and exhaust gas stops when the lubricating oil supply is ended.
- the transverse bore 13a or 13b transports only a small subset of the lubricating oil, since the largest part flows into the pump interior 19.
- the exhaust gas blows are not additionally reinforced by the large chamber volume of the vacuum pump, since it is continuously oiled.
- the AbSteuerdite, which are caused by the small portion of the intermittent Be ⁇ lung the coupling portion 25 are negligible.
- the partial quantity which is branched off from the engine oil quantity in each case, must not be too large, otherwise there is a danger that the pump will be undersupplied and the CO release of the coupling will be too strong.
- the delivery volume is determined by the angle that passes through the transverse bore during rotation of the rotor. The angle is given by the width of the ⁇ lsteignut. Alternatively or cumulatively, the delivery volume can be determined by the bore diameter of the transverse bore and the size of the chamfering of the transverse bore. be determined. Furthermore, the flow rate is still determined by the diameter of the oil supply hole and ultimately by the engine oil pressure.
- the inventive design of the vacuum pump also gives the advantage that, in contrast to the known oiling principles, the engine-specific parking layers of the internal combustion engine need not be considered in order to avoid an open oil supply at engine standstill, as by a fastener having a central through hole acts this as a throttle and allows air to flow over the short bearing length and the bearing gap in the pump.
- FIG. 1 shows a cross section through the vacuum pump according to the invention with the
- FIG. 2 shows a cross section of the vacuum pump according to the invention
- FIG. 3a shows a first section A-A through the rotor according to the invention
- FIG. 3b shows a second section B-B through the rotor according to the invention
- Figure 3c is a plan view of the coupling side of the rotor.
- the 1 shows a vacuum pump 1 with a rotor 5.
- an oil feed hole 9 is arranged, which communicates with the supply connection 10 and opens in the rotor bearing 6.
- the rotor 5 has at least one radial groove 8, which serves for better distribution of the introduced through the oil feed hole 9 lubricating oil.
- the oil supply hole 9 opens into the rotor bearing 6 in the region of the radial groove 8, in order to provide an optimum lubricating oil supply. len.
- the rotor 5 also has a transverse bore 13 a, which is designed to the center of the rotor 5.
- a bore 15 is provided into which a fastening means 17 for connecting the coupling 27 with the rotor 5 can be inserted.
- the fastening means 17 also has a central bore 18 in the axial direction. Due to the rotational movement of the rotor 5, the transverse bore 13a, a ⁇ lsteignut 7 passes once per revolution. In this way, a subset of the engine oil is removed and passed through the central bore 18 of the fastener 17 in the coupling portion 25 shown in Fig. 3. In this way, a Be ⁇ lung also shown in Fig. 3 clutch underside 24 and also the clutch 27th
- FIG. 2 shows another view of the vacuum pump 1 according to the invention with a transverse bore 13b extending in the rotor 5 over the entire diameter of the rotor bearing 6. Furthermore, FIG. 2 shows the oil rod groove 7 which extends axially in the rotor bearing region 6 into the pump interior 19.
- the ⁇ lsteignut 7 can be produced by means of a machining manufacturing process, such as milling or drilling. Alternatively, the ⁇ lsteignut 7 can also be manufactured by a primary molding process. The final shape then results from the subsequent finishing. This results in a cross-section which depends on the production method and which can be, for example, rectangular or semicircular.
- 3a-3c can also be determined by further parameter variables such as diameter of the transverse bore 13, width and depth of the oil component 7, cross-section of the oil supply bore 9 and engine oil pressure in addition to the structural design of the Transverse bore (center ending or continuous) vary and thus adapt to the required properties.
- the already mentioned low pressure pulsation when oil is supplied to the vacuum pump results from the fact that the oil flow, which is guided via the supply connection 10 and the oil supply bore 9 into the rotor bearing 6, can pass virtually unhindered via the oil rod 7 into the pump interior 19.
- the transverse bore 13a or 13b transports only a small subset of the lubricating oil, since the largest part flows into the pump interior 19.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380055250.9A CN104755763B (zh) | 2012-10-22 | 2013-09-17 | 泵 |
| DE112013005092.7T DE112013005092B4 (de) | 2012-10-22 | 2013-09-17 | Kupplungsbeölung |
| US14/427,422 US9915264B2 (en) | 2012-10-22 | 2013-09-17 | Intermittent coupling oiling |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012110038.1 | 2012-10-22 | ||
| DE102012110038 | 2012-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014063681A1 true WO2014063681A1 (de) | 2014-05-01 |
Family
ID=49488448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2013/100332 Ceased WO2014063681A1 (de) | 2012-10-22 | 2013-09-17 | Intermittierende kupplungsbeölung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9915264B2 (de) |
| CN (1) | CN104755763B (de) |
| DE (1) | DE112013005092B4 (de) |
| WO (1) | WO2014063681A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3032105A1 (de) | 2014-12-12 | 2016-06-15 | Pierburg Pump Technology GmbH | Mechanische kfz-vakuumpumpe |
| DE102016106165B4 (de) | 2015-07-22 | 2022-02-17 | Toyota Jidosha Kabushiki Kaisha | Brennkraftmaschine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478562A (en) * | 1978-07-28 | 1984-10-23 | Barmag Barmer Maschinenfabrik Ag | Oil lubrication of vacuum pump with pulsating oil feed |
| JPH1162864A (ja) * | 1997-08-22 | 1999-03-05 | Sanwa Seiki Co Ltd | 自動車用真空ポンプ |
| EP1850007A1 (de) * | 2005-02-16 | 2007-10-31 | Taiho Kogyo Co., Ltd. | Flügelzellenpumpe |
| JP2009185699A (ja) * | 2008-02-06 | 2009-08-20 | Toyota Motor Corp | バキュームポンプ |
| EP2397696A1 (de) * | 2010-04-27 | 2011-12-21 | Taiho Kogyo Co., Ltd | Flügelzellenpumpe |
| US20120156076A1 (en) * | 2010-04-27 | 2012-06-21 | Ryuichi Sakakibara | Vane pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112006001462A5 (de) * | 2005-06-25 | 2008-03-06 | Ixetic Hückeswagen Gmbh | Pumpe |
| US8312858B2 (en) | 2006-12-22 | 2012-11-20 | Kohler Co. | System and method for lubricating power transmitting elements |
| US7431006B2 (en) * | 2006-12-22 | 2008-10-07 | Kohler Co. | System and method for lubricating power transmitting elements |
-
2013
- 2013-09-17 CN CN201380055250.9A patent/CN104755763B/zh active Active
- 2013-09-17 WO PCT/DE2013/100332 patent/WO2014063681A1/de not_active Ceased
- 2013-09-17 US US14/427,422 patent/US9915264B2/en active Active
- 2013-09-17 DE DE112013005092.7T patent/DE112013005092B4/de active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478562A (en) * | 1978-07-28 | 1984-10-23 | Barmag Barmer Maschinenfabrik Ag | Oil lubrication of vacuum pump with pulsating oil feed |
| JPH1162864A (ja) * | 1997-08-22 | 1999-03-05 | Sanwa Seiki Co Ltd | 自動車用真空ポンプ |
| EP1850007A1 (de) * | 2005-02-16 | 2007-10-31 | Taiho Kogyo Co., Ltd. | Flügelzellenpumpe |
| JP2009185699A (ja) * | 2008-02-06 | 2009-08-20 | Toyota Motor Corp | バキュームポンプ |
| EP2397696A1 (de) * | 2010-04-27 | 2011-12-21 | Taiho Kogyo Co., Ltd | Flügelzellenpumpe |
| US20120156076A1 (en) * | 2010-04-27 | 2012-06-21 | Ryuichi Sakakibara | Vane pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3032105A1 (de) | 2014-12-12 | 2016-06-15 | Pierburg Pump Technology GmbH | Mechanische kfz-vakuumpumpe |
| WO2016091922A1 (de) * | 2014-12-12 | 2016-06-16 | Pierburg Pump Technology Gmbh | Mechanische kfz-vakuumpumpe |
| US10443599B2 (en) | 2014-12-12 | 2019-10-15 | Pierburg Pump Technology Gmbh | Mechanical vacuum pump for a motor vehicle |
| DE102016106165B4 (de) | 2015-07-22 | 2022-02-17 | Toyota Jidosha Kabushiki Kaisha | Brennkraftmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104755763B (zh) | 2017-08-15 |
| US20150240816A1 (en) | 2015-08-27 |
| DE112013005092A5 (de) | 2015-07-16 |
| CN104755763A (zh) | 2015-07-01 |
| US9915264B2 (en) | 2018-03-13 |
| DE112013005092B4 (de) | 2021-03-04 |
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