EP 1087138 B1 20031015 - 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)
Designated contracting state (EPC)
DE FR GB IT
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