EP 1820935 A1 20070822 - Vane pump housing
Title (en)
Vane pump housing
Title (de)
Flügelzellenpumpengehäuse
Title (fr)
Boîtier de pompe à palettes
Publication
Application
Priority
US 77362106 P 20060215
Abstract (en)
A variable capacity vane pump has a housing defining a main chamber having an inlet port and an outlet port. A pump control ring (44) is moveable within the main chamber to alter the capacity of the pump. The control ring divides the main chamber into a pressurized region (45) and an unpressurized region. A vane pump rotor is rotatably mounted within the pump control ring. The vane pump rotor has a plurality of slidably mounted vanes engaging an inside surface of the pump control ring. The vane pump rotor has an axis of rotation eccentric from a centre of the pump control ring, whereby as the vane pump rotor rotates fluid is pressurized and moves from the inlet port to the outlet port. A control chamber (60,64) is provided between the pump casing and the pump control ring, and is operable to receive pressurized fluid to create a force to move the pump control ring to reduce the volumetric capacity of the pump. A return spring (56) acts between pump ring and the casing to bias the pump ring towards a position of maximum volumetric capacity. An opening (51) extends through the housing communicating with the unpressurized region, minimizes a clearance between the vane pump and engine on which the vane pump is mounted.
IPC 8 full level
F01C 21/10 (2006.01); F04C 2/344 (2006.01); F04C 14/22 (2006.01)
CPC (source: EP)
F01C 21/10 (2013.01); F01M 1/02 (2013.01); F04C 2/3441 (2013.01); F04C 14/226 (2013.01); F01M 2001/0238 (2013.01); F01M 2001/0246 (2013.01); F04C 2240/30 (2013.01)
Citation (applicant)
- DE 19722495 A1 19971211 - VOLKSWAGEN AG [DE]
- JP S59115483 A 19840703 - NISSAN MOTOR
- JP H08159046 A 19960618 - SYST SOGO KENKYUSHO KK
Citation (search report)
- [A] US 2004144354 A1 20040729 - STALEY DAVID R [US], et al
- [PA] WO 2006066405 A1 20060629 - MAGNA POWERTRAIN USA INC [CA], et al
- [X] JP S59115483 A 19840703 - NISSAN MOTOR
- [X] DE 19722495 A1 19971211 - VOLKSWAGEN AG [DE]
- [X] JP H08159046 A 19960618 - SYST SOGO KENKYUSHO KK
Designated contracting state (EPC)
DE FR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07003258 A 20070215