Title:
ROTARY FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2004/059130
Kind Code:
A1
Abstract:
In a rotary fluid machine, both end portions of a rotor (22) with an axial piston cylinder group (56) that converts pressure energy of an operation medium to mechanical energy are supported at a casing (11) by a first bearing (23f, 23r) and a second bearing (24). Out of the bearings, only the first bearing (23f, 23r) is formed by a combination angular bearing capable of supporting an axial load, and the second bearing (24) is formed by a radial bearing capable of supporting a radial load and movable in an axial direction relative to the rotor (22). Since the rotor (22) is positioned in the axial direction at the casing (11) only by the first bearing (combination angular bearing) (23f, 23r), different amounts of axial thermal expansion present between the casing (11) and the rotor (22) can be absorbed by the second bearing (radial bearing) (24) without any problem. This effectively solves a problem produced by different amounts of thermal present expansion between the casing and rotor of the rotary fluid machine.
Inventors:
MAKINO HIROYUKI (JP)
HONMA KENSUKE (JP)
KAMOI YASUHARU (JP)
HONMA KENSUKE (JP)
KAMOI YASUHARU (JP)
Application Number:
PCT/JP2003/016481
Publication Date:
July 15, 2004
Filing Date:
December 22, 2003
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
MAKINO HIROYUKI (JP)
HONMA KENSUKE (JP)
KAMOI YASUHARU (JP)
MAKINO HIROYUKI (JP)
HONMA KENSUKE (JP)
KAMOI YASUHARU (JP)
International Classes:
F04B1/20; F04B27/08; (IPC1-7): F01B3/02; F01B31/06
Domestic Patent References:
| WO2002070865A1 | 2002-09-12 |
Foreign References:
| JPH0464962U | 1992-06-04 | |||
| JP2000262004A | 2000-09-22 |
Attorney, Agent or Firm:
Ochiai, Takeshi (6-3 Taito 2-chom, Taito-ku Tokyo, JP)
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