EP 0738826 B1 20001129 - Hydraulic device with differential pistons and its application to a varible thrust drive
Title (en)
Hydraulic device with differential pistons and its application to a varible thrust drive
Title (de)
Hydraulische Stufenkolbenanordnung und deren Anwendung in einem Antrieb mit einer variablen Schubkraft
Title (fr)
Dispositif hydraulique à pistons différentiels et son application à une commande à poussée variable
Publication
Application
Priority
EP 95810254 A 19950418
Abstract (en)
[origin: EP0738826A1] The piston device comprises two guided pistons (9,11) of different cross sections, In one position, their endfaces (9b,11a) are in contact. A pressure cell (30,15a-c) is filled with hydraulic fluid to transmit force between the pistons. A reservoir (20) and channel (25) enable the amount of fluid in the cell to be altered. This is done by forcing hydraulic fluid through the channel, which is connected to the pressure cell, controlled by one of the pistons, which in a certain position cuts off the inflow of hydraulic fluid. This in turn enables the force transmitted between the pistons to be controlled.
IPC 1-7
IPC 8 full level
F01L 9/02 (2006.01); F01L 9/10 (2021.01); F15B 3/00 (2006.01); F15B 11/028 (2006.01); F15B 15/17 (2006.01)
CPC (source: EP)
F01L 9/10 (2021.01); F15B 15/17 (2013.01)
Designated contracting state (EPC)
DE DK FR IT NL
DOCDB simple family (publication)
EP 0738826 A1 19961023; EP 0738826 B1 20001129; CN 1088150 C 20020724; CN 1144299 A 19970305; DE 59508878 D1 20010104; DK 0738826 T3 20001227; JP 4164132 B2 20081008; JP H08284905 A 19961101; KR 100380568 B1 20030718
DOCDB simple family (application)
EP 95810254 A 19950418; CN 96105060 A 19960417; DE 59508878 T 19950418; DK 95810254 T 19950418; JP 8920696 A 19960411; KR 19960010534 A 19960409