Title:
AXIAL PISTON MOTOR
Document Type and Number:
Japanese Patent JP3771004
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the increase of the face pressure in excess as the total sliding face, while keeping the sealing property of a land part in a good condition, for inhibiting the heat crack, etc., and to improve the durability.
SOLUTION: A land part 10 as a seal, area, is mounted on the sliding face of a cylinder block 3 and a valve plate 6, a circular auxiliary pat part 12 is mounted outside of the land part 10 through an escape groove, and a gap is formed on a composition plane of the sliding face of the valve plate 6 and a motor housing 1 at an opposite side, on a position corresponding to the auxiliary pat part 12. When the excess face pressure is acted on the auxiliary pat part 12, the valve plate 6 is deformed to the opposite side, whereby the surface pressure of the auxiliary pat part 12 can be kept almost equal to that to the land part 10.
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Inventors:
Shigetaka Konishi
Kenji Suzuki
Satoru Yamaguchi
Kenji Suzuki
Satoru Yamaguchi
Application Number:
JP17806397A
Publication Date:
April 26, 2006
Filing Date:
July 03, 1997
Export Citation:
Assignee:
Kayaba Industry Co., Ltd.
International Classes:
F04B1/20; F04B53/10; (IPC1-7): F04B53/10; F04B1/20
Domestic Patent References:
JP1118167U | ||||
JP63045079U | ||||
JP7035769U |
Attorney, Agent or Firm:
Masaki Goto
Yoshio Matsuda
Yoshio Matsuda
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