EP 0205831 A2 19861230 - Axial plunger pump with double endface oil distribution.
Title (en)
Axial plunger pump with double endface oil distribution.
Title (de)
Axialkolbenpumpe mit Ölansaugung durch beide Endseiten des Kolbens.
Title (fr)
Pompe à pistons axiaux avec distribution d'huile aux deux extrémités du piston.
Publication
Application
Priority
CN 85103289 A 19850502
Abstract (en)
Present invention relates to hydraulic pump. It integrates the principle of straight oil distributing plate and the principle of double endface oil distribution of swashplate together with such plunger pump design as swashplate pump, through shaft pump etc. By cutting slots and notches no pump casing, variable flow casing and introducing a branch intake passage on pump body to form two oil passages, an axial plunger pump with double endface oil distribution has been developed with new performance features. Said pump has advantages of self cooling, high self sucking capability good lubrication, simple construction, no pipe for leaked oil, high efficiency etc., its service life is also longer than currently used plunger pumps by more than 10 times. Based on present invention a new series of axial piston pumps can be developed and existing plunger pumps can be modified to obtain significant economical benefits.
IPC 1-7
IPC 8 full level
F04B 1/20 (2006.01)
CPC (source: EP)
F04B 1/2014 (2013.01); F04B 1/2064 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0205831 A2 19861230; CN 85103289 A 19860610; CN 85103289 B 19860610; JP S62189379 A 19870819
DOCDB simple family (application)
EP 86105934 A 19860430; CN 85103289 A 19850502; JP 10123986 A 19860502