ROTARY HYDRAULIC MACHINE - HONDA MOTOR CO LTD

Title:

ROTARY HYDRAULIC MACHINE

Document Type and Number:

WIPO Patent Application WO/2002/070865

Kind Code:

A1

Abstract:

A rotary hydraulic machine comprising a first working section (49) and a second working section (57) comprising an axial piston cylinder group, wherein a rotary valve (61) for controlling suction/discharge of working medium for the first and second working sections (49, 57) comprises a first valve section having a flat sliding face (68) orthogonal to the rotational axis (L) of a rotor (27) and controlling suction/discharge of working medium for the first working section (49), and a second valve section having a tubular sliding face (71) centered about the rotational axis (L) of a rotor (27) and controlling suction/discharge of working medium for the second working section (57). Since suction/discharge of working medium for the first and second working sections (49, 57) is controlled by a common rotary valve (61), size of a rotary hydraulic machine can be reduced.

Inventors:

MAKINO HIROYUKI (JP)
MATSUMOTO KENJI (JP)
ITOH NAOKI (JP)
KOJIMA YOICHI (JP)

Application Number:

PCT/JP2002/002036

Publication Date:

September 12, 2002

Filing Date:

March 05, 2002

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
MAKINO HIROYUKI (JP)
MATSUMOTO KENJI (JP)
ITOH NAOKI (JP)
KOJIMA YOICHI (JP)

International Classes:

F01B3/02; F03C1/34; F04B1/20; F01B3/10; F04B1/22; F04B23/06; F04B27/08; F04B41/06; (IPC1-7): F01B25/10; F01B3/02; F04B39/10

Foreign References:

GB980837A	1965-01-20
DE1500457A1	1969-07-10
US3364679A	1968-01-23
US3464206A	1969-09-02
US5062267A	1991-11-05
JP2000154775A	2000-06-06
JPH09184478A	1997-07-15
US5354180A	1994-10-11
US5593291A	1997-01-14
JPS5870475U	1983-05-13

Other References: