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Title:
POSITIVE-DISPLACEMENT FLUID MACHINE
Document Type and Number:
Japanese Patent JP2011247199
Kind Code:
A
Abstract:

To improve input efficiency and durability of a positive-displacement fluid machine by reducing the sliding resistance between an inner circumferential surface and sliding contact parts and the sliding resistance between guides and sliding contact surfaces of side parts of a first vane and a second vane.

By applying a biasing force in a direction in which an excessive sliding contact pressure between an inner circumferential surface 11 and sliding contact parts 31a, 31b, 31c, 31d generated by a centrifugal force acting on a first vane 3A and a second vane 3B arranged slidably in the radial direction of a rotor 2 and a moment in the opposite direction of the direction of rotation of the rotor generated by a pressure of an operation fluid acting on the first vane and the second vane are canceled by a tractive force of a first elastic material 4A and a second elastic material 4B, the sliding resistance between the inner circumferential surface and the sliding contact parts and the sliding resistance between guides 21a, 21b, 21c, 21d and the sliding contact surfaces of side parts of the first vane and the second vane are relaxed.


Inventors:
Tsujimoto, Suenori
Application Number:
JP2010000122151
Publication Date:
December 08, 2011
Filing Date:
May 27, 2010
Export Citation:
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Assignee:
TSUJIMOTO SUENORI
International Classes:
F04C18/344; F04C27/00
Domestic Patent References:
JPS324629B1
JPS61142384A1986-06-30
JP2008255984A2008-10-23
JPS507705U1975-01-27
JP2009127553A2009-06-11
Attorney, Agent or Firm:
辻本 一義
辻本 希世士
森田 拓生