Title:
油圧式の容積形流体ユニットにおける脈動を低減するための装置
Document Type and Number:
Japanese Patent JP4148329
Kind Code:
B2
Abstract:
This invention relates to a device to reduce pulsations on a hydrostatic positive displacement units, such as an axial or radial piston machine working both as a pump and as a motor with a reversible direction of rotation. In the displacement units, at least one piston is mounted so that it can move longitudinally in a cylinder bore which forms a cylinder chamber. The device has a buffer element which is in communication with the high-pressure side and can be brought into connection with the cylinder chamber. The device reduces pulsations on hydrostatic positive displacement units by which the reversing actions of the cylinder chambers are optimized and the pulsations are effectively minimized in a broad bandwidth of operating conditions. A switchable valve, in particular a non-return valve which opens toward the cylinder chamber is located in a connecting channel between the buffer element and the cylinder chamber.
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Inventors:
Bernwald Versov
Laurent Angelt
Richard Hoffman
Hans-Dieter Dell
Christian bergmann
Laurent Angelt
Richard Hoffman
Hans-Dieter Dell
Christian bergmann
Application Number:
JP3442798A
Publication Date:
September 10, 2008
Filing Date:
February 17, 1998
Export Citation:
Assignee:
Linde Material Handling GmbH
International Classes:
F04B11/00; F04B1/20
Domestic Patent References:
JP63011409A | ||||
JP1107123A | ||||
JP6171493A | ||||
JP5213024A | ||||
JP8109901A | ||||
JP59190015A | ||||
JP58030364A | ||||
JP6336111A |
Foreign References:
US3956969 | ||||
WO1995023076A1 | ||||
DE1211943B |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Einzel Felix-Reinhard