Pressure compensating valve for a fuel tank
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United States of America Patent
Stats
-
Mar 10, 1998
Grant Date -
N/A
app pub date -
Mar 4, 1996
filing date -
Mar 3, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention is directed to a pressure compensating valve for a fuel tank of a work apparatus such as a portable handheld work apparatus equipped with an internal combustion engine. The fuel tank has a tank wall and the pressure compensating valve includes a housing cap defining an inner space and is impermeable to air. A pressure compensating stub is provided on the tank wall and terminates within the housing cap. Pressure compensating apertures are formed in the tank wall to open into the stub and a valve is provided for controlling the apertures for venting and ventilating the fuel tank. A passage connects the inner space of the cap with the atmosphere. A finely porous filter element is fixedly held in the stub and the apertures open into the filter element. The housing cap is mounted on the filter element and is held on the filter element.
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