Global Patent Index - EP 0524437 B1

EP 0524437 B1 19960605 - Hydraulic piston motor

Title (en)

Hydraulic piston motor

Title (de)

Flüssigkeitskolbenmotor

Title (fr)

Moteur hydraulique à piston

Publication

EP 0524437 B1 19960605 (EN)

Application

EP 92110445 A 19920620

Priority

SE 9101950 A 19910625

Abstract (en)

[origin: EP0524437A1] Hydraulic piston motor comprising a housing, at least one cam disk with an internal cam curve (8), at least one cylinder block (6) with a number of cylinders (5), and so-called roller cage pistons, running in said cylinders. According to the invention each roller cage piston consists of a roller cage part (2) and a piston part (3) forming an integral unit. The roller cage part is formed as a hydrostatic bearing with a bearing surface which is in the form of a cylindrical segment and is adapted to rollers running against said cam curve (8). At its inner end the piston part is formed with two flanges (19, 20) with an intermediate piston ring slot (21). Those surfaces of the flanges which are facing the cylinder wall together exhibit a double-curved convex surface, which allows an angular deviations, of the order of magnitude of 1 DEG , between the cylinder (5) and the roller cage piston (1). A seal is arranged in the piston ring slot. <IMAGE> <IMAGE>

IPC 1-7

F03C 1/04; F04B 1/04

IPC 8 full level

F03C 1/047 (2006.01); F04B 1/04 (2006.01)

CPC (source: EP)

F03C 1/047 (2013.01); F04B 1/0408 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0524437 A1 19930127; EP 0524437 B1 19960605; DE 69211238 D1 19960711; DE 69211238 T2 19970123; SE 503563 C2 19960708; SE 9101950 D0 19910625; SE 9101950 L 19921226

DOCDB simple family (application)

EP 92110445 A 19920620; DE 69211238 T 19920620; SE 9101950 A 19910625