EP 0061405 B1 19850619 - HYDRAULIC PISTION PUMP WITH A VARIABLE STROKE, AND PRESSURE-FLUID GENERATOR USING SUCH A PUMP
Title (en)
HYDRAULIC PISTION PUMP WITH A VARIABLE STROKE, AND PRESSURE-FLUID GENERATOR USING SUCH A PUMP
Publication
Application
Priority
FR 8105770 A 19810323
Abstract (en)
[origin: ES8400802A1] The present invention relates to a double-acting hydraulic pump comprising a piston moving with a reciprocal rectilinear movement inside a cylinder of which each chamber is provided with a suction valve and a delivery valve, the rod of said piston being adapted to be driven by a variable-displacement driving member. The said piston rod extends beyond the piston and moves, outside the cylinder within a space of variable volume, provided in the body of the pump, which communicates, with a member controlling the by-pass device through which the two chambers of the cylinder communicate.
IPC 1-7
IPC 8 full level
F04B 9/00 (2006.01); F04B 17/00 (2006.01); F04B 17/05 (2006.01)
CPC (source: EP US)
F04B 17/05 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0061405 A1 19820929; EP 0061405 B1 19850619; AT E13932 T1 19850715; BR 8201628 A 19830216; CA 1186947 A 19850514; DE 3264219 D1 19850725; ES 510632 A0 19831101; ES 8400802 A1 19831101; FR 2502256 A1 19820924; FR 2502256 B1 19840713; JP S57210179 A 19821223; US 4461613 A 19840724
DOCDB simple family (application)
EP 82400513 A 19820322; AT 82400513 T 19820322; BR 8201628 A 19820323; CA 398991 A 19820322; DE 3264219 T 19820322; ES 510632 A 19820322; FR 8105770 A 19810323; JP 4615682 A 19820323; US 35999582 A 19820319