EP 0284712 A3 19890614 - VANE PUMP
Title (en)
VANE PUMP
Publication
Application
Priority
DE 3711339 A 19870403
Abstract (en)
[origin: EP0284712A2] In a vane pump with a rotor (2) which can be driven in two directions of rotation, two flow ducts (15, 16) leading into the pump chamber (7) are provided in addition to two pump connections (13, 14). A control device provided inside the rotor (2) ensures that at any one time only that flow duct (15 or 16) on the intake side has a connection to the intake-side pump connection (13, 14). This design increases the degree of filling of the vane pump and hence its delivery. <IMAGE>
IPC 1-7
IPC 8 full level
F04C 2/344 (2006.01); F04C 18/344 (2006.01); F04C 28/04 (2006.01); F04C 29/12 (2006.01)
CPC (source: EP)
F04C 28/04 (2013.01); F04C 29/122 (2013.01)
Citation (search report)
- [A] US 4577472 A 19860325 - PANDEYA PRAKASH N [US], et al
- [A] US 2463155 A 19490301 - DAWES BAILEY P
- [A] PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 169 (M-231)[1314], 26. July 1983; & JP-A-58 074 888 (MITSUBISHI JUKOGYO K.K.) 06-05-1983
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0284712 A2 19881005; EP 0284712 A3 19890614; EP 0284712 B1 19910116; DE 3711339 A1 19881020; DE 3861530 D1 19910221
DOCDB simple family (application)
EP 88100426 A 19880114; DE 3711339 A 19870403; DE 3861530 T 19880114