EP4240973A1 - Schmiermittelpumpe mit variabler verdrängung - Google Patents
Schmiermittelpumpe mit variabler verdrängungInfo
- Publication number
- EP4240973A1 EP4240973A1 EP20803829.9A EP20803829A EP4240973A1 EP 4240973 A1 EP4240973 A1 EP 4240973A1 EP 20803829 A EP20803829 A EP 20803829A EP 4240973 A1 EP4240973 A1 EP 4240973A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- variable displacement
- control ring
- opening
- valve opening
- pump
- 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
- 239000000314 lubricant Substances 0.000 title claims abstract description 47
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 68
- 230000007935 neutral effect Effects 0.000 claims abstract description 39
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 description 17
- 238000007599 discharging Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 238000011067 equilibration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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 the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
Definitions
- the rotational speed of the vane pump depends on the rotational speed of the crankshaft and not on the required lubrication performance of the internal combustion engine.
- the variable displacement lubricant pump also comprises a switchable pressure relief valve at the neutral zone flu id ica lly connecting the discharge opening and the suction opening via a passing pumping compartment, so that the neutral zone is not periodically closed by the passing pumping compartment anymore.
- the pressure relief valve comprises a valve opening at the axial sidewall of the pump housing and a valve body defined by the control ring. This pressure relief valve allows a controllable leakage flow between the discharge zone and the suction zone via the periapsis pumping compartment passing the neutral zone.
- the periapsis pumping compartment in the neutral zone is thereby depressurized and the compartment pressure adapts to the suction pressure.
- the hydraulic pressure force in this compartment is significantly reduced, so that no relevant internal force component unintentionally reduces the eccentricity of the control ring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2020/081508 WO2022096134A1 (en) | 2020-11-09 | 2020-11-09 | Variable displacement lubricant pump |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4240973A1 true EP4240973A1 (de) | 2023-09-13 |
Family
ID=73198330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20803829.9A Pending EP4240973A1 (de) | 2020-11-09 | 2020-11-09 | Schmiermittelpumpe mit variabler verdrängung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4240973A1 (de) |
WO (1) | WO2022096134A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4146312B2 (ja) * | 2003-07-25 | 2008-09-10 | ユニシア ジェーケーシー ステアリングシステム株式会社 | 可変容量形ポンプ |
JP5690238B2 (ja) * | 2011-07-26 | 2015-03-25 | 日立オートモティブシステムズ株式会社 | 可変容量形オイルポンプ |
WO2014141013A1 (en) | 2013-03-13 | 2014-09-18 | Magna Powertrain Inc. | Vane pump with multiple control chambers |
WO2014198322A1 (en) | 2013-06-13 | 2014-12-18 | Pierburg Pump Technology Gmbh | Variable lubricant vane pump |
-
2020
- 2020-11-09 EP EP20803829.9A patent/EP4240973A1/de active Pending
- 2020-11-09 WO PCT/EP2020/081508 patent/WO2022096134A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2022096134A1 (en) | 2022-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20230607 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |