EP 0144888 A3 19850717 - OIL-SEALED VANE PUMP
Title (en)
OIL-SEALED VANE PUMP
Publication
Application
Priority
FR 8319148 A 19831130
Abstract (en)
[origin: US4575322A] Oil-sealed vane pump has a stator and a rotor assembly housed in an oil-filled tank, said stator comprising an oil injection orifice, a suction port connected to a tank inlet pipe and a discharge port opening into said tank, said discharge port being provided with a check valve, said check valve being mounted in a spot facing in the stator and said tank further comprising a discharge outlet. The stator is provided with at least one slot opening into the spot facing.
IPC 1-7
IPC 8 full level
F04C 25/02 (2006.01); F04C 27/02 (2006.01)
CPC (source: EP US)
F04C 27/02 (2013.01 - EP US)
Citation (search report)
- [A] GB 1140452 A 19690122 - EDWARDS HIGH VACUUM INT LTD
- [A] US 2154880 A 19390418 - ERNEST TWIGG
- [A] FR 2074931 A5 19711008 - BORSIG GMBH
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0144888 A2 19850619; EP 0144888 A3 19850717; EP 0144888 B1 19880120; AT E32123 T1 19880215; BG 51054 A3 19930115; DE 3468919 D1 19880225; FR 2555674 A1 19850531; FR 2555674 B1 19860328; JP S60135688 A 19850719; US 4575322 A 19860311
DOCDB simple family (application)
EP 84114285 A 19841127; AT 84114285 T 19841127; BG 6770484 A 19841129; DE 3468919 T 19841127; FR 8319148 A 19831130; JP 25277084 A 19841129; US 67539084 A 19841128