EP 0499794 B1 19940406 - Hydraulic pump.
Title (en)
Hydraulic pump.
Title (de)
Hydropumpe.
Title (fr)
Pompe hydraulique.
Publication
Application
Priority
DE 4105030 A 19910219
Abstract (en)
[origin: EP0499794A1] A hydraulic pump, in which two pump elements deliver from a common suction chamber and the delivery currents can alternately be jointly fed to a pressure outlet or can be split to two outlets of which one outlet leads back into the suction chamber, is to be simplified with regard to its construction. <??>For this purpose, the pressure-side chambers for the separate delivery currents can be connected via a one-way valve through which in the open state the delivery current of one pump element can be united with that of the second pump element. <??>The different delivery current guides are switched via control valves whose position depends solely on the pressure prevailing at the pressure outlet of the hydraulic pump. <??>The control valves to be switched are a joint component of a single control slide valve. <IMAGE>
IPC 1-7
IPC 8 full level
F04C 14/24 (2006.01); F04B 49/00 (2006.01); F04B 49/02 (2006.01); F04C 14/02 (2006.01); F04C 14/06 (2006.01); F04C 14/18 (2006.01); F04C 14/26 (2006.01); F16N 13/22 (2006.01)
CPC (source: EP US)
F04C 14/065 (2013.01 - EP US)
Designated contracting state (EPC)
FR GB IT SE
DOCDB simple family (publication)
EP 0499794 A1 19920826; EP 0499794 B1 19940406; DE 4105030 A1 19920820; DE 4105030 C2 19941124; JP 2528415 B2 19960828; JP H0579471 A 19930330; US 5211544 A 19930518
DOCDB simple family (application)
EP 92100785 A 19920118; DE 4105030 A 19910219; JP 6547592 A 19920206; US 83651092 A 19920218