EP 0320795 A3 19900207 - VANE-TYPE VACUUM PUMP
Title (en)
VANE-TYPE VACUUM PUMP
Publication
Application
Priority
DE 3742277 A 19871212
Abstract (en)
[origin: EP0320795A2] For the operation of servo drives in motor vehicles, oil-lubricated vane-type vacuum pumps are used. In order to reduce the oil consumption and to improve the output, the rotor (5) is supported on one side and provided with an internal bore (21) extending from the free end. In this way a vacuum is produced in the internal bore (21) which is approximately as great as in the intake chamber. <IMAGE>
IPC 1-7
IPC 8 full level
F04C 18/344 (2006.01); F04C 29/02 (2006.01)
CPC (source: EP)
F04C 18/3441 (2013.01); F04C 29/02 (2013.01); F04C 2220/10 (2013.01)
Citation (search report)
- [X] GB 2069610 A 19810826 - BOSCH GMBH ROBERT
- [YD] GB 912119 A 19621205 - DEWANDRE CO LTD C
- [AP] DE 3734573 A1 19880428 - BARMAG BARMER MASCHF [DE]
- [AD] EP 0003572 A1 19790822 - BARMAG BARMER MASCHF [DE]
- [A] DE 2737659 A1 19790301 - VOLKSWAGENWERK AG
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0320795 A2 19890621; EP 0320795 A3 19900207; EP 0320795 B1 19910710; DE 3863633 D1 19910814; ES 2022973 B3 19911216
DOCDB simple family (application)
EP 88120517 A 19881208; DE 3863633 T 19881208; ES 88120517 T 19881208