EP 1087138 A3 20020710 - Pump unit with two internal gear pumps
Title (en)
Pump unit with two internal gear pumps
Title (de)
Innenzahnradpumpen umfassendes Pumpenaggregat
Title (fr)
Unité de pompage à deux pompes à engrenages internes
Publication
Application
Priority
DE 19945922 A 19990925
Abstract (en)
[origin: EP1087138A2] Two separate internal geared wheel pumps have internal rotors (5) with external toothing and linked drives and axles. One internal rotor has a device (6) for controlling interruption in a drive link. This device has a spring-loaded locking pin (9) sliding in the internal rotor's recess (7) and operating in conjunction with a turning stop (10) on a drive shaft (11). Affected by pump pressure, this pin interrupts a drive link when pump pressure is sufficiently high.
IPC 1-7
IPC 8 full level
F01M 1/02 (2006.01); F04C 2/10 (2006.01); F04C 11/00 (2006.01); F04C 14/06 (2006.01); F04C 15/00 (2006.01)
CPC (source: EP)
F04C 14/06 (2013.01); F04C 2270/56 (2013.01)
Citation (search report)
- [A] DE 19620700 A1 19971127 - IAV MOTOR GMBH [DE]
- [A] DE 4134219 A1 19920430 - VOLKSWAGEN AG [DE]
- [PA] EP 0989303 A1 20000329 - PEUGEOT [FR], et al
- [A] PATENT ABSTRACTS OF JAPAN vol. 009, no. 209 (M - 407) 27 August 1985 (1985-08-27)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1087138 A2 20010328; EP 1087138 A3 20020710; EP 1087138 B1 20031015; DE 19945922 A1 20010329; DE 50004060 D1 20031120
DOCDB simple family (application)
EP 00117422 A 20000811; DE 19945922 A 19990925; DE 50004060 T 20000811