ATE517262T1 - VOLUME-CHANGEABLE INTERNAL GEAR PUMP - Google Patents
VOLUME-CHANGEABLE INTERNAL GEAR PUMPInfo
- Publication number
- ATE517262T1 ATE517262T1 AT09704115T AT09704115T ATE517262T1 AT E517262 T1 ATE517262 T1 AT E517262T1 AT 09704115 T AT09704115 T AT 09704115T AT 09704115 T AT09704115 T AT 09704115T AT E517262 T1 ATE517262 T1 AT E517262T1
- Authority
- AT
- Austria
- Prior art keywords
- rotor
- pressure chamber
- outer rotor
- volume
- gear pump
- Prior art date
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
-
- 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
- F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to a variable-volume internal gear pump, in particular for use as an engine lubrication pump for automobiles. The internal gear pump comprises a housing (7, 10) and a rotor set chamber (40) formed therein comprising a low pressure chamber (17) and a high pressure chamber (18) for a fluid. Inside the rotor set chamber (40) are an inner rotor (2) that can be rotatably driven by a shaft (1) about an axis of rotation (Di) and a rotatable outer rotor (3) with an outer rotor axis of rotation (Da) that is arranged eccentric with respect to the axis of rotation (Di). When a rotational force is applied, conveyance cells (30, 31) form between the inner rotor (2) and the outer rotor (3) in which the fluid is conveyed from the low pressure chamber (17) to the high pressure chamber (18). An adjusting member (5) upon which axial springs (8) act and which is guided in the internal gears (34) of the outer rotor (3) in axial motion causes a pressure-related axial movement of the inner rotor (2). The outer rotor (3) comprises radial channels (41) in the gaps between the teeth of the internal gears (34) thereof proximate to the low pressure chamber (17) and the high pressure chamber (18). The axial position of the inner rotor (2) relative to the outer rotor (3) can be adjusted by the axial motion of the adjusting member (5), whereupon the volume of the conveyance cells (30, 31) changes depending on the pressure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08100673 | 2008-01-21 | ||
PCT/EP2009/050630 WO2009092719A2 (en) | 2008-01-21 | 2009-01-21 | Variable-volume internal gear pump |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE517262T1 true ATE517262T1 (en) | 2011-08-15 |
Family
ID=39523755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT09704115T ATE517262T1 (en) | 2008-01-21 | 2009-01-21 | VOLUME-CHANGEABLE INTERNAL GEAR PUMP |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110038746A1 (en) |
EP (1) | EP2235374B1 (en) |
AT (1) | ATE517262T1 (en) |
CA (1) | CA2712550A1 (en) |
WO (1) | WO2009092719A2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8543245B2 (en) * | 2009-11-20 | 2013-09-24 | Halliburton Energy Services, Inc. | Systems and methods for specifying an operational parameter for a pumping system |
EP2585719A2 (en) | 2010-06-23 | 2013-05-01 | Siegfried A. Eisenmann | Continuously variable volume hydrostatic rotary piston machine |
WO2012031970A1 (en) | 2010-09-06 | 2012-03-15 | Eisenmann Siegfried A | Hydrostatic drive for a motor vehicle |
CN102135096B (en) * | 2011-03-13 | 2013-08-28 | 深圳乐满油气技术有限公司 | External driving transmission structure for eccentric dual-rotor pump |
US9488172B2 (en) * | 2012-05-24 | 2016-11-08 | GM Global Technology Operations LLC | Pump assembly for a vehicle |
DE102013212002A1 (en) * | 2013-06-25 | 2015-01-08 | Bayerische Motoren Werke Aktiengesellschaft | Internal gear pump for the delivery of fluid |
CN104976112B (en) * | 2014-04-01 | 2018-12-18 | 松下知识产权经营株式会社 | liquid pump and Rankine cycle device |
JP2021055553A (en) * | 2019-09-27 | 2021-04-08 | 株式会社Subaru | Internal gear pump |
US11965509B2 (en) * | 2022-02-28 | 2024-04-23 | Genesis Advanced Technology Inc. | Energy transfer machine for corrosive fluids |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2484789A (en) * | 1944-04-15 | 1949-10-11 | Hill Lab | Variable displacement pump and motor |
JPS5647692A (en) * | 1979-09-27 | 1981-04-30 | Ishikawajima Harima Heavy Ind Co Ltd | Variable displacement type internal gear pump |
DE3528651A1 (en) * | 1985-08-09 | 1987-02-19 | Rohs Hans Guenther Prof Dr Ing | GEAR PUMP |
US6244839B1 (en) * | 1997-11-14 | 2001-06-12 | University Of Arkansas | Pressure compensated variable displacement internal gear pumps |
ITTO20020551A1 (en) * | 2002-06-26 | 2003-12-29 | Vhit Spa | VARIABLE DISPLACEMENT FLUID MACHINE ACCORDING TO PRESSURE |
JP4485770B2 (en) * | 2003-09-01 | 2010-06-23 | 株式会社ダイヤメット | Oil pump rotor |
DE10352029A1 (en) * | 2003-11-07 | 2005-06-16 | SCHWäBISCHE HüTTENWERKE GMBH | Displacement pump has preloading device in form of flow pump with at least one feed wheel rotationally driven by drive shaft, whereby feed wheel of flow pump is torsionally fixed in relation to drive shaft |
WO2005100780A2 (en) * | 2004-04-09 | 2005-10-27 | Hybra-Drive Systems, Llc | Variable capacity pump/motor |
US7832997B2 (en) * | 2004-12-22 | 2010-11-16 | Magna Powertrain, Inc. | Variable capacity gerotor pump |
-
2009
- 2009-01-21 WO PCT/EP2009/050630 patent/WO2009092719A2/en active Application Filing
- 2009-01-21 EP EP09704115A patent/EP2235374B1/en not_active Not-in-force
- 2009-01-21 CA CA2712550A patent/CA2712550A1/en not_active Abandoned
- 2009-01-21 AT AT09704115T patent/ATE517262T1/en active
- 2009-01-21 US US12/863,899 patent/US20110038746A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2235374B1 (en) | 2011-07-20 |
WO2009092719A3 (en) | 2009-12-03 |
US20110038746A1 (en) | 2011-02-17 |
WO2009092719A2 (en) | 2009-07-30 |
EP2235374A2 (en) | 2010-10-06 |
CA2712550A1 (en) | 2009-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE517262T1 (en) | VOLUME-CHANGEABLE INTERNAL GEAR PUMP | |
EP3173579A3 (en) | Cycloid rotor engine | |
WO2009024109A3 (en) | Control oil pump having travel-dependent oil pressure control | |
WO2006099606A3 (en) | Radial axis, spherical based rotary machines | |
NZ592364A (en) | Integrated swash plate pump and motor for compressible and elastic fluids such as explosive gases | |
WO2012120094A3 (en) | A gerotor pump, a gerotor motor and a gerotor transmission system | |
WO2012072492A3 (en) | Internal gear pump | |
JP6086979B2 (en) | Gear pump | |
WO2013000745A3 (en) | Micropump, bearing element for a micropump, and working method | |
US9765779B2 (en) | Internal gear pump having a rotationally fixed axial disk | |
CN104565751A (en) | Double-tooth-difference cycloidal gear pump | |
EP1833147A3 (en) | Electric motor | |
WO2010012621A3 (en) | Vane pump | |
WO2008031012A3 (en) | Long life telescoping gear pumps and motors | |
KR20160144948A (en) | Gerotor Pump with double rotor assembly | |
WO2011140358A3 (en) | Fluid energy transfer device | |
US20140255236A1 (en) | Internal gear pump | |
WO2011147638A3 (en) | Internal gear pump | |
RU2010145322A (en) | GEAR PUMPS AND WAYS OF THEIR USE | |
WO2013087236A3 (en) | Controllable coolant pump having a fluidic actuator | |
JP5993219B2 (en) | How to use the Pendulum Slider Pump and Pendulum Slider Pump | |
JP5905696B2 (en) | Pump devices, especially for helicopter lubrication | |
US9506467B2 (en) | Internal gear pump | |
ATE523395T1 (en) | GEAR PUMP ASSEMBLY | |
WO2010100021A3 (en) | Vane pump |