公开(公告)号：EP4006372A1

公开(公告)日：2022-06-01

申请号：EP20210554.0

申请日：2020-11-30

申请人： Robert Bosch GmbH

发明人： O Hara, Frank

IPC分类号： F16D55/36 ,  F16D59/02 ,  F04B1/1071 ,  F03C1/40 ,  F03C1/22

摘要： A radial piston machine comprises: a housing (2), a rotor (4) within the housing, wherein the rotor is rotatable about an axis (6), a shaft (8) coupled to the rotor for torque transmission, a distributor (10) which surrounds the shaft and cannot rotate with the rotor and that contacts the rotor in an axial direction for communicating fluid to and from the rotor, a plurality of brake discs comprising first brake discs (50) and second brake discs (52) arranged side-by-side along the axis, wherein the first brake discs are coupled to the housing for torque transmission, and the second brake discs are coupled to the shaft for torque transmission, and an actuator (60) configured to releasably exert a brake force in the axial direction on the brake discs, wherein the distributor is located axially between the rotor and the actuator, and the brake discs are located axially between the distributor and the actuator; when the brake force is exerted the brake force is supported by the distributor in the axial direction.

公开(公告)号：EP3885571A1

公开(公告)日：2021-09-29

申请号：EP20165838.2

申请日：2020-03-26

申请人： Robert Bosch GmbH

发明人： O Hara, Frank ,  Edward, Iain ,  Hare, David

IPC分类号： F03C1/36 ,  F03C1/40 ,  F03C1/24

摘要： The invention concerns a hydraulic motor (40) with a casing (50) which has a first (51) and a second (52) working port, wherein there is a rotor (70) inside the casing (50), wherein there is a first (41) and a third chamber (43), wherein the first chamber (41) is permanently connected to a plurality of first openings (61) in the end face (63), wherein the third chamber (43) is permanently connected to a plurality of second openings (62) in the end face (63), wherein the first chamber (41) is permanently connected to the first working port (51).
According to the invention the casing has a third working port (53), wherein there is a second (42) and a fourth (44) chamber, wherein the second chamber (42) is permanently connected to the second working port (52), wherein the fourth chamber (44) is permanently connected to the third working port (53), wherein there is a movable spool (80) located inside the casing (50), which has a first and a second position (82; 83), wherein in the first position (82) there is a connection from the third chamber (43) to the second chamber (42) via the spool (80), wherein in the second position (83) there is a connection from the third chamber (43) to the fourth chamber (44) via the spool (80) and a connection from the first chamber (41) to the second chamber (42) via the spool (80).