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公开(公告)号:US11592012B2
公开(公告)日:2023-02-28
申请号:US16998121
申请日:2020-08-20
Applicant: Robert Bosch GmbH
Inventor: David Breuer , Peter Roos , Rudolf Appel , Timo Nafz
Abstract: A hydrostatic piston machine unit, which is in particular designed as a hydrostatic axial piston machine unit, comprises at least two driving mechanisms that can be driven synchronously and have displacement pistons which each perform a reciprocating motion in operation and are provided for delivery into a common pressure line. The hydrostatic piston machine unit has a jointly assigned precompression volume for the at least two driving mechanisms.
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公开(公告)号:US20180058432A1
公开(公告)日:2018-03-01
申请号:US15660175
申请日:2017-07-26
Applicant: Robert Bosch GmbH
Inventor: Peter Roos
CPC classification number: F04B1/2064 , F03C1/0663 , F04B1/2014 , F04B11/00 , F04B11/0008
Abstract: A hydrostatic axial piston machine includes a pot-like housing, a connection plate that closes the pot-like housing, a rotatably mounted cylinder drum, and pistons arranged in cylinder chambers of the cylinder drum. The cylinder chambers are each alternately connected via a cylinder chamber opening to a low-pressure control opening and a high-pressure control opening of a resting control part. The control part has two switching regions located between the low-pressure and high pressure control openings. A piston reverses its movement direction in a dead center within the two switching regions. In the switching region, the cylinder chambers are connected via a connecting line to a fluid volume arranged in the housing. The fluid volume extends between the connection plate and the housing such that it is sealed to an interior by the connection plate and the housing.
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公开(公告)号:US10240587B2
公开(公告)日:2019-03-26
申请号:US15660175
申请日:2017-07-26
Applicant: Robert Bosch GmbH
Inventor: Peter Roos
Abstract: A hydrostatic axial piston machine includes a pot-like housing, a connection plate that closes the pot-like housing, a rotatably mounted cylinder drum, and pistons arranged in cylinder chambers of the cylinder drum. The cylinder chambers are each alternately connected via a cylinder chamber opening to a low-pressure control opening and a high-pressure control opening of a resting control part. The control part has two switching regions located between the low-pressure and high pressure control openings. A piston reverses its movement direction in a dead center within the two switching regions. In the switching region, the cylinder chambers are connected via a connecting line to a fluid volume arranged in the housing. The fluid volume extends between the connection plate and the housing such that it is sealed to an interior by the connection plate and the housing.
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公开(公告)号:US20210071528A1
公开(公告)日:2021-03-11
申请号:US16998121
申请日:2020-08-20
Applicant: Robert Bosch GmbH
Inventor: David Breuer , Peter Roos , Rudolf Appel , Timo Nafz
IPC: F01B3/00 , F04B1/2014
Abstract: A hydrostatic piston machine unit, which is in particular designed as a hydrostatic axial piston machine unit, comprises at least two driving mechanisms that can be driven synchronously and have displacement pistons which each perform a reciprocating motion in operation and are provided for delivery into a common pressure line. The hydrostatic piston machine unit has a jointly assigned precompression volume for the at least two driving mechanisms.
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