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Definition of Reed valve

Reed valve Definition from Science & Technology Dictionaries & Glossaries
Dictionary of Automotive Terms
A one-way valve used in a two-cycle engine . It is made of a flat strip of metal that lies on the floor of the crankcase over a hole connected to the carburetor . As the piston moves up, the vacuum developed in the crankcase lifts the reed valve off the hole. The vacuum causes the fuel-air mixture to flow from the carburetor into the crankcase . Then, as the piston starts to move down, pressure increases in the crankcase pushing the reed valve down, closing the hole and sealing the crankcase .
Technical English by wpv
Thin, flat, tempered steel plate fastened at one end.
Reed valve Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
Reed valves are a type of check valve which restrict the flow of fluids to a single direction, opening and closing under changing pressure on each face. Modern versions often consist of flexible metal or composite materials (fiberglass or carbon fiber).

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