Two-way pressure valve

The utility model relates to a two-way pressure valve for the fuel evaporative pollutant system of a gasoline car. The two-way pressure valve comprises a pressure valve and a vacuum valve, wherein, the pressure valve is in a spring diaphragm type structure, and the vacuum valve is in an umbrella dia...

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Bibliographic Details
Main Authors PENG JIANCHUAN, SUN BAODONG, LIANG YING
Format Patent
LanguageEnglish
Published 14.08.1996
Edition6
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:The utility model relates to a two-way pressure valve for the fuel evaporative pollutant system of a gasoline car. The two-way pressure valve comprises a pressure valve and a vacuum valve, wherein, the pressure valve is in a spring diaphragm type structure, and the vacuum valve is in an umbrella diaphragm type structure. The pressure valve is provided with a bowl-shaped leather valve and a spring, and the vacuum valve is provided with an upper bracket, a lower bracket and an umbrella-shaped leather valve. A bowl-shaped leather diaphragm is installed at one side near an inlet port, and an umbrella-shaped leather diaphragm is installed at one side of a steam outlet through the assembling of the upper bracket and the lower bracket. The external side of the vacuum valve and the pressure valve is respectively provided with a bell-shaped housing having a steam outlet. A spring is arranged at the back of the lower bracket, and the front end of the housing is provided with a case having an inlet port.
Bibliography:Application Number: CN1995226860U