HYDRAULIC VALVE - HONDA MOTOR CO LTD

Title:

HYDRAULIC VALVE

Document Type and Number:

WIPO Patent Application WO/2003/040599

Kind Code:

A1

Abstract:

A hydraulic valve, wherein a stepped groove (53) is formed around the outer periphery of the rod part (43) of a spool (40) positioned in a third oil groove (33), the axial both end parts (53a) and (53b) of the stepped groove (53) are positioned on the axial outside of the axial both end parts (33a) and (33b) of the third oil groove (33) at least in a pressure−regulated state, a stepped groove (52) is formed around the outer periphery of a land (42) positioned in a first oil groove (31), and axial both end parts (52a) and (52b) of the stepped groove (52) are positioned across the end part (31b) of the axial both end parts (31a) and (31b) of the first oil groove (31) on such a side that the spool (40) is moved when an opening amount is increased at least in a pressure−regulated state.

More Like This:

JPH02236072	LIQUID FLOW CONTROL VALVE
WO/2012/137424	PRESSURE REDUCTION VALVE

Inventors:

NIRASAWA HIDEO (JP)
ITO KEISUKE (JP)

Application Number:

PCT/JP2002/011681

Publication Date:

May 15, 2003

Filing Date:

November 08, 2002

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
NIRASAWA HIDEO (JP)
ITO KEISUKE (JP)

International Classes:

F16K17/30; F16K3/24; F16K31/122; G05D16/10; F15B13/00; (IPC1-7): F16K3/24; F16K31/122

Foreign References:

JP2522273Y2	1997-01-08
JP2001295946A	2001-10-26
JPH0338524Y2	1991-08-14
JP2001055968A	2001-02-27
JPH0763275A	1995-03-07
JPH0560250A	1993-03-09
JPS5861381A	1983-04-12
JP2001116158A	2001-04-27
JPS5469431U	1979-05-17
JPH01150265U	1989-10-17

Other References: