VALVE WITH FLUID PRESSURE REDUCTION DEVICE WITH INTEGRAL GUIDE

Title:

VALVE WITH FLUID PRESSURE REDUCTION DEVICE WITH INTEGRAL GUIDE

Document Type and Number:

Japanese Patent JP2008175401

Kind Code:

A

Abstract:

To provide wear resistance and galling resistance during use.

A fluid pressure reduction device comprises an outer member and an inner member movable to each other. The outer member has an inner perimeter surface, and the inner member has an outer perimeter surface. The inner perimeter surface and the outer perimeter surface adjoin closely to each other during the movement of the outer member and inner member. The device comprises a plurality of longitudinal channels formed around the inner perimeter surface in the outer member, and guide members formed of metal with higher wear resistance than the outer member and inner member and provided in each of the longitudinal channels adapted to the inner perimeter surface and outer perimeter surface for guiding the movement of the outer member and inner member to reduce wear of the inner perimeter surface and outer perimeter surface.

Inventors:

MCCARTY MICHAEL WILDIE
BYER MARK EDWARD
GETHMANN DOUGLAS PAUL
GOSSETT JAMES LEROY

Application Number:

JP2008105645A

Publication Date:

July 31, 2008

Filing Date:

April 15, 2008

Export Citation:

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Assignee:

FISHER CONTROLS INT LLC

International Classes:

F16K47/02; F16K3/24; F16K47/08

Domestic Patent References:

JPS6014320U	1985-01-31
JPS5817220A	1983-02-01

Attorney, Agent or Firm:

Patent business corporation Yuko patent office

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