EP 0789815 B1 19990310 - FRICTION-TYPE VACUUM PUMP WITH COOLING SYSTEM
Title (en)
FRICTION-TYPE VACUUM PUMP WITH COOLING SYSTEM
Title (de)
REIBUNGSVAKUUMPUMPE MIT KÜHLUNG
Title (fr)
POMPE A VIDE A FRICTION POURVUE D'UN SYSTEME DE REFROIDISSEMENT
Publication
Application
Priority
- DE 4438812 A 19941031
- EP 9503140 W 19950808
Abstract (en)
[origin: DE4438812A1] The invention concerns a single-flow friction-type vacuum pump (1) with a housing (4, 5) in which are located, in succession along the longitudinal axis of the pump, an inlet (2), the pumping surfaces (8,9), and a drive motor (11). In order to provide effective air cooling, the invention proposes that the housing walls are fitted with air-intake and air-discharge apertures and that a ventilation fan (23) is integrated in the housing (4, 5).
IPC 1-7
IPC 8 full level
F04D 17/16 (2006.01); F04D 19/04 (2006.01); F04D 25/08 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP)
F04D 17/168 (2013.01); F04D 19/04 (2013.01); F04D 25/06 (2013.01); F04D 29/5806 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
DE 4438812 A1 19960502; DE 59505320 D1 19990415; EP 0789815 A1 19970820; EP 0789815 B1 19990310; JP H10507806 A 19980728; WO 9613667 A1 19960509
DOCDB simple family (application)
DE 4438812 A 19941031; DE 59505320 T 19950808; EP 9503140 W 19950808; EP 95929813 A 19950808; JP 51427296 A 19950808