Pressure reducer

A pressure reducer includes a piston slidably accommodated in a cylinder to define a decompression chamber and a pressure adjusting chamber. A seal member includes an elastic member and a sliding portion. The sliding portion is pressed by the elastic member such that the sliding portion slides on an...

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Bibliographic Details
Main Authors SHIMA TOSHIHIKO, FUJIWARA HIDETOSHI, SUZUKI TAKUYA, ISHITOYA TSUKUO, KUROYANAGI MUNETOSHI, YAMASHITA AKIRA
Format Patent
LanguageChinese
English
Published 05.12.2007
Subjects
BLASTING
CONTROLLING
FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES
FIXED-CAPACITY GAS-HOLDERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PHYSICS
REGULATING
STORING OF DISTRIBUTING GASES OR LIQUIDS
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES
WEAPONS
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Summary:A pressure reducer includes a piston slidably accommodated in a cylinder to define a decompression chamber and a pressure adjusting chamber. A seal member includes an elastic member and a sliding portion. The sliding portion is pressed by the elastic member such that the sliding portion slides on an inner circumferential surface of the cylinder. An annular member is located on an outer circumferential surface of the piston and between the seal member and the pressure adjusting surface. The annular member is pressed against the inner circumferential surface of the cylinder with a force that is less than a force with which the sliding portion is pressed against the inner circumferential surface of the cylinder. Thus, the pressure reducer prevents the piston from being moved by an excessive amount with highly accurately adjusting pressure.
Bibliography:Application Number: CN200580044038