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Patent Searching and Data


Title:
【発明の名称】斜板プランジャ式油圧装置
Document Type and Number:
Japanese Patent JP2974164
Kind Code:
B2
Abstract:
PURPOSE:To prevent noise generation without dropping the power transmitting efficiency by changing the oil pressure in a cylinder hole and a communication port in accordance with rotation of a cylinder block. CONSTITUTION:When a plunger 12 moves rotationally from the lower dead point in compliance with the rotation of a cylinder block 4, the oil chamber 13 to which a communication port 13a is leading remains out of communication to anywhere until the communication port 13a comes in mating with the discharge port 14, and the pressure of the working oil in the oil chamber 13 is boosted by movement of the plunger 12 in the compressive direction. When the plunger 12 is rotated from the upper dead point, the oil chamber 13 leading to the communication port 13a remains out of communication to anywhere until the communication port 13a comes into mating with the suction port 15, and the working oil in the oil chamber 13 is decompressed with movement of the plunger 12 in the expansive direction. Thereby generation of high frequency noise can be prevented without dropping the power transmitting efficiency.

Inventors:
KANAMARU YOSHIHIRO
OKUDA AKIHITO
TANE TOSHIAKI
OGAWA HIROHISA
Application Number:
JP4254891A
Publication Date:
November 08, 1999
Filing Date:
February 14, 1991
Export Citation:
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Assignee:
HONDA GIKEN KOGYO KK
International Classes:
F04B1/20; F16H39/14; (IPC1-7): F04B1/20; F16H39/14
Domestic Patent References:
JP5443302A
Attorney, Agent or Firm:
大西 正悟