EP 1311760 B1 20050914 - HYDRAULIC RADIAL PISTON ENGINE
Title (en)
HYDRAULIC RADIAL PISTON ENGINE
Title (de)
HYDRAULISCHE RADIALKOLBENMASCHINE
Title (fr)
MACHINE HYDRAULIQUE A PISTONS RADIAUX
Publication
Application
Priority
- DE 10041318 A 20000823
- EP 0104803 W 20010428
Abstract (en)
[origin: WO0216769A1] The invention relates to a hydraulic radial piston engine comprising: a lifting ring (15) that is fixed to the housing; a rotor (18), which is mounted opposite the lifting ring such that it can rotate about a rotational axis; a multitude of piston seats (35) that, with regard to the rotational axis, are radially aligned inside the rotor, and; a multitude of pistons (50) of which each is displaceably mounted inside a piston seat, and which comprise, at least over a portion of their length, a non-circular guiding and sealing cross section. The guiding and sealing cross section of the pistons corresponds to a guiding and sealing cross section of the piston seats, which has a corresponding non-circular shape and which remains unchanged up to the exterior of the rotor. The hydraulic radial piston engine also comprises circular cylindrical rolls (58), which are supported inside bearing seats by the pistons, aligned with the rotational axis thereof in the direction of the rotational axis of the rotor, and which are provided for supporting the pistons on the lifting ring. The rolls have two faces (60), which face away from one another, and which extend perpendicular to the rotational axis thereof. According to the invention, the piston seats (35) comprise two wall sections (44), which are aligned perpendicular to the rotational axis of the rolls, and the distance between both faces of a roll is only slightly less than the distance between both flat wall sections (44) of the piston seats (35).
IPC 1-7
IPC 8 full level
F04B 1/04 (2006.01); F04B 1/047 (2006.01); F04B 1/053 (2006.01)
CPC (source: EP US)
F04B 1/0439 (2013.01 - EP US); F04B 1/047 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 0216769 A1 20020228; DE 10041318 A1 20020307; DE 50107443 D1 20051020; EP 1311760 A1 20030521; EP 1311760 B1 20050914; JP 2004507638 A 20040311; JP 4658446 B2 20110323; US 2004040435 A1 20040304; US 7028600 B2 20060418
DOCDB simple family (application)
EP 0104803 W 20010428; DE 10041318 A 20000823; DE 50107443 T 20010428; EP 01945062 A 20010428; JP 2002521832 A 20010428; US 34480103 A 20030731