EP2414683A2 - Pumpe für eine kraftfahrzeug-brennkraftmaschine sowie kraftfahrzeug-brennkraftmaschine mit pumpe - Google Patents
Pumpe für eine kraftfahrzeug-brennkraftmaschine sowie kraftfahrzeug-brennkraftmaschine mit pumpeInfo
- Publication number
- EP2414683A2 EP2414683A2 EP10706946A EP10706946A EP2414683A2 EP 2414683 A2 EP2414683 A2 EP 2414683A2 EP 10706946 A EP10706946 A EP 10706946A EP 10706946 A EP10706946 A EP 10706946A EP 2414683 A2 EP2414683 A2 EP 2414683A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- internal combustion
- combustion engine
- housing
- cylinder head
- 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.)
- Granted
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
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0068—Adaptations for other accessories
-
- 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
- F04C18/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/603—Centering; Aligning
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/604—Mounting devices for pumps or compressors
-
- 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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the invention relates to a pump for a motor vehicle internal combustion engine, comprising a connectable to a camshaft of the internal combustion engine rotor with axis and connectable to a housing of the internal combustion engine pump housing having a first pump housing portion and a second pump housing portion, wherein the second pump housing portion for entry through an opening portion of Internal combustion engine housing is determined in the engine housing and a motor vehicle internal combustion engine having an internal combustion engine housing comprising a cylinder head and a cylinder head cover, wherein between the cylinder head and cylinder head cover a parting plane is formed, at least one camshaft and a pump.
- the first pump housing portion essentially comprises the pump working space and the second pump housing portion the area of the pump housing which enters into the engine housing in an opening region of the engine housing.
- the axis of the pump rotor is arranged in the known arrangements, as it emerges for example from DE 199 61 317 C1, to the cross-sectional plane of the second pump housing portion in its inlet region in the engine housing centrally.
- the axes of this pump housing portion and the pump rotor are coaxial.
- the outer contour of the second pump housing region usually serves together with a corresponding inner contour of the opening region of the Internal combustion engine housing for positionally fixing the pumps, in particular the axis of the pump rotor, with respect to a driving camshaft.
- the invention is therefore an object of the invention to provide an aforementioned pump and an aforementioned motor vehicle internal combustion engine, in which the pump side has the ability to flexibilize position and / or orientation of a radial inlet or outlet, so that the pump easily to different Installation space conditions and / or vehicle or internal combustion engine types can be adjusted. In addition, the production cost is to be reduced.
- the object is achieved by a pump with the features of claim 1, by the axis of the pump rotor is arranged eccentrically to the cross-sectional plane of the second pump housing portion and with a motor vehicle internal combustion engine having the features of claim 5.
- the position of the pump rotor axis to the camshaft axis changes according to the invention. This creates the opportunity to adapt to different space situations, so that the pump can be used with a variety of vehicle or engine types. In particular, there are also freedoms in the geometric design of the outlet channels to reduce power consumption. With the invention, a radial outlet on the pump is made possible. Particularly preferred embodiments and developments of the invention are the subject of the dependent claims.
- the axis of the pump rotor has an offset of s / 5 to 4s / 5, in particular of approximately s / 3, to the center of the cross-sectional plane. It has been found that with such an offset under the given conditions for the pump working space and the position of the pump rotor with respect to the pump housing best possible flexibilization of the pump can be achieved.
- fixing points are provided for the positionally accurate fastening of the pump housing to the engine housing, wherein at least one fastening point comprises at least one fitting element and the fastening points are arranged substantially below the axis of the pump rotor.
- at least one attachment point comprises at least one fitting element, an exact positioning of the pump with respect to the engine housing can be achieved with this at least one attachment point, so that positioning by means of the inlet geometry of the pump housing in the engine housing is unnecessary.
- a significant simplification in the manufacture of the pump housing and the inlet geometry is achieved on the engine housing.
- the arrangement of the attachment points substantially below the axis of the pump rotor also supports a simplified production, since, for example, the attachment points can be provided substantially in the cylinder head and a division of the attachment points to several components, such as cylinder head and cylinder head cover can be avoided. In addition, space advantages result by the attachment points can be placed in areas that are less critical space.
- the pump according to the invention is further characterized in that the pump housing is stiffened rib-like between its first pump housing portion and the attachment points.
- the offset direction of the axis of the pump rotor is directed opposite to the pump outlet, starting from the middle of the cross-sectional plane of the second pump housing region. This results in a particularly large space for the radial outlet of the pump.
- a seal is arranged in the opening region of the engine housing between the pump housing and the engine housing. Forming errors of the outer contour of the second pump housing region and / or the inner contour of the opening region of the engine housing as well as positional errors between the pump housing and the opening region of the engine housing can also be compensated by means of this seal.
- the attachment points are arranged in the region of the cylinder head and the pump housing enters with its second pump housing portion substantially in the region of the cylinder head cover in the engine housing.
- Figure 1a shows a camshaft driven pump on an internal combustion engine housing in side view
- FIG. 1 b a camshaft driven pump on an internal combustion engine housing in rear view.
- Figure 2a is a camshaft driven pump in side view
- Figure 2b shows a camshaft driven pump in rear view.
- FIG. 1 a shows a motor vehicle internal combustion engine with overhead camshafts and a camshaft driven pump 108 in side view, which is not detailed further, a rear view of the pump 108 is shown in FIG. 1 b.
- the pump 108 is shown in mounted position on an engine housing 102.
- FIG. 2 shows a further exemplary embodiment of a camshaft-driven pump 208 in a side view in FIG. 2a and in a rear view in FIG. 2b.
- FIG. 2 shows the pump 208 in a non-installed state without an internal combustion engine.
- the pump 108, 208 serves to generate negative pressure for ancillary components of the internal combustion engine or for the motor vehicle and is for example a single-wing vacuum pump with a cup-shaped stator with konchoidenförmiger inner contour in which a rotor is rotatably mounted.
- a wing is displaceably mounted orthogonally to its axis of rotation a, b, which rests with its wing tips on a working space delimiting peripheral surface and thereby dividing the working space into a suction chamber and a pressure chamber.
- the suction space is provided with an inlet opening and the pressure space is provided with an outlet opening, wherein the outlet opening is arranged in the circumferential area surrounding the pressure space.
- the pump 108, 208 may also be a vane pump, an internally or externally toothed gear pump, a reciprocating pump or an internally or externally pressurized radial piston pump.
- the pump 108, 208 is lubricated for lubrication purposes starting from the camshaft, for example by means of oil transfer tubes.
- the internal combustion engine comprises an internal combustion engine housing 102 with a cylinder head 104 and a cylinder head cover 106, wherein camshafts for actuating intake and exhaust valves of the internal combustion engine are mounted in the cylinder head 104.
- camshafts for actuating intake and exhaust valves of the internal combustion engine are mounted in the cylinder head 104.
- only a center line 126 of a camshaft is shown in simplified form.
- the pump 108, 208 is arranged in the extension of a camshaft (126) on the outside of the engine housing 102.
- an opening 122 is provided for the entry of a pump shaft 120, 220 connected to the pump rotor into the engine housing 102.
- the parting plane 105 between the cylinder head 104 and the cylinder head cover 106 in the present case extends below the camshaft plane. Accordingly, the opening 122 in the engine housing 102 above the parting plane 105 in Essentially arranged in the cylinder head cover 106.
- at least a portion of the opening 122 may also be disposed in the cylinder head 104.
- the pump 108, 208 includes a pump housing 109, 209 having a first housing portion 110, 210 which substantially encloses the pump working space, and a second housing portion 112, 212 which enters the opening portion 122 of the engine housing 102 therein.
- the pump housing portion 112, 212 in the present case has a cylindrical shape.
- the cross-sectional area A of the pump housing portion 112 is correspondingly circular, the center of the cross-sectional area A is denoted by M.
- the pump has a radially directed outlet 132, 232 and an inlet 230.
- the opening 122 of the engine housing 102 is formed correspondingly round, wherein the entrance of the pump housing 109, 209 with its portion 112, 212 through ⁇ réellesen opening portion 122 of the engine housing 102 into the engine housing 102 is radially backlash.
- a seal 124 is provided for sealing between the engine housing 102 and the pump housing 109, 112, 209, 212.
- This seal 124 is in the present case designed as a substantially radially acting seal, however, in another embodiment, it may additionally or alternatively seal in the axial direction. With the seal 124 and tolerances can be compensated.
- the attachment points 114, 115, 214, 215 are on the pump housing 109, 209 below the Pump shaft axis a, b provided, wherein the pump housing 109, 209 for stiffening ribs 118, "
- attachment points 114, 115, 214, 215 and the first pump housing portion 110, 210 has.
- a different number of attachment points may be provided and these may be arranged differently.
- fastening points comprise fitting elements 116, 216.
- two fastening points 114, 214 are provided with dowel sleeves or dowel pins.
- the inventive pump 108, 208 can be used with a variety of engine types regardless of their geometric constraints, such as location of the separation plane 105 between the cylinder head 104 and cylinder head cover 106 or position of the camshaft.
- the pump 108, 208 can be used both with internal combustion engines having a variable valve train, that is a valve train in which the stroke of the valves is variable, as well as with internal combustion engines having a conventional valve train.
- the pump 108, 208 may be used regardless of the arrangement of a support bracket. The pump 108, 208 is therefore particularly flexible used. Only the ,
- Attachment points 114, 115, 214, 215 are to be provided.
- a hitherto usually required mounting bracket for the pump 108, 208 and / or exact to be produced Zentrierduchmesser can be omitted.
- Holes for the fitting elements 116, 216 can be manufactured in one operation with required threads by means of stepped drill. As a result, the cost of production and assembly is significantly reduced.
- a pressure oil seal to the outside can be omitted, so that the risk of leakage is reduced, since only the almost pressureless space under the cylinder head cover 106 must be sealed to the outside.
- the cylinder head blank can be easily leak tested due to its straight sealing surfaces. Cylinder head blanks can be easily stacked and transported due to the now no longer required pump mounting bracket and the elimination of the support bracket and the centering diameter brings a reduction in the axial length of the cylinder head with it.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rotary Pumps (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009016048.5A DE102009016048B4 (de) | 2009-04-02 | 2009-04-02 | Pumpe für eine Kraftfahrzeug-Brennkraftmaschine sowie Kraftfahrzeug-Brennkraftmaschine mit Pumpe |
| PCT/EP2010/001268 WO2010112114A2 (de) | 2009-04-02 | 2010-03-02 | Pumpe für eine kraftfahrzeug-brennkraftmaschine sowie kraftfahrzeug-brennkraftmaschine mit pumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2414683A2 true EP2414683A2 (de) | 2012-02-08 |
| EP2414683B1 EP2414683B1 (de) | 2019-01-02 |
Family
ID=42675005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10706946.0A Active EP2414683B1 (de) | 2009-04-02 | 2010-03-02 | Pumpe für eine kraftfahrzeug-brennkraftmaschine sowie kraftfahrzeug-brennkraftmaschine mit pumpe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2414683B1 (de) |
| CN (1) | CN102308095B (de) |
| DE (1) | DE102009016048B4 (de) |
| WO (1) | WO2010112114A2 (de) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB754062A (en) * | 1954-08-30 | 1956-08-01 | Thompson Prod Inc | Improved coupling device |
| US4372517A (en) * | 1980-07-02 | 1983-02-08 | Lockheed Corporation | Slot-type accessory mounting |
| JPS611819A (ja) * | 1984-05-10 | 1986-01-07 | Honda Motor Co Ltd | 水冷式内燃機関における水ポンプの駆動装置 |
| DE3637229C2 (de) * | 1985-11-13 | 1998-04-16 | Barmag Barmer Maschf | Baueinheit aus einer Hydraulikpumpe und einer Vakuumpumpe |
| DE3734573C2 (de) * | 1986-10-18 | 1998-12-17 | Barmag Barmer Maschf | Flügelzellen-Vakuumpumpe |
| DE3906823B4 (de) * | 1988-12-08 | 2004-01-08 | Barmag Ag | Flügel-Vakuumpumpe |
| DE8903733U1 (de) * | 1989-03-25 | 1989-06-15 | Adam Opel AG, 6090 Rüsselsheim | Haltebock |
| DE4016014C2 (de) * | 1989-06-01 | 1998-02-19 | Barmag Barmer Maschf | Flügelzellen-Vakuumpumpe |
| FR2683262B1 (fr) * | 1991-11-06 | 1995-02-03 | Smh Management Services Ag | Moteur a combustion interne avec pompe a huile sur l'arbre a cames. |
| DE19961317C1 (de) | 1999-12-18 | 2001-06-28 | Bayerische Motoren Werke Ag | Vakuumpumpe, insbesondere Flügelzellenvakuumpumpe |
| DE10150303A1 (de) * | 2001-10-11 | 2003-04-30 | Pierburg Gmbh | Vorrichtung zur Erzeugung von Vakuum für Verbraucher in einem Kraftfahrzeug |
| DE10393279D2 (de) * | 2002-11-13 | 2005-06-02 | Luk Automobiltech Gmbh & Co Kg | Vakuumpumpe |
| JP2005163607A (ja) * | 2003-12-02 | 2005-06-23 | Aisan Ind Co Ltd | ベーン式バキュームポンプとバキュームポンプにおけるロータ及びカップリングの製造方法 |
| DE202006017242U1 (de) * | 2006-03-31 | 2007-08-02 | Hengst Gmbh & Co.Kg | Verbrennungskraftmaschine mit einem durch Verklebung befestigten Kunststoff-Bauteil, und dementsprechendes Kunststoff-Anbauteil |
| DE102007005216B4 (de) * | 2007-01-29 | 2015-07-30 | Pierburg Gmbh | Vakuumpumpe |
| DE102007018247A1 (de) * | 2007-04-12 | 2008-10-16 | Joma-Hydromechanic Gmbh | Vakuumpumpe |
-
2009
- 2009-04-02 DE DE102009016048.5A patent/DE102009016048B4/de active Active
-
2010
- 2010-03-02 EP EP10706946.0A patent/EP2414683B1/de active Active
- 2010-03-02 CN CN201080006388.6A patent/CN102308095B/zh active Active
- 2010-03-02 WO PCT/EP2010/001268 patent/WO2010112114A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010112114A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102308095B (zh) | 2014-12-31 |
| DE102009016048A1 (de) | 2010-10-07 |
| EP2414683B1 (de) | 2019-01-02 |
| DE102009016048B4 (de) | 2018-05-30 |
| CN102308095A (zh) | 2012-01-04 |
| WO2010112114A2 (de) | 2010-10-07 |
| WO2010112114A3 (de) | 2010-11-25 |
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