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poppet valve |
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poppet valve [′päp·ət ‚valv] (mechanical engineering) A cam-operated or spring-loaded reciprocating-engine mushroom-type valve used for control of admission and exhaust of working fluid; the direction of movement is at right angles to the plane of its seat. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Typical areas for leaks include the poppet valve, isolation valves and sootblower packing. The engine in question isn't your typical weed whip's two-stroke, but a high-value design that mimics a typical automotive four-stroke engine design with overhead cams, poppet valves, and cylinder scavenging via a supercharger. For example, the proprietary poppet valve gave the same part-weight variation as the ball valve. |
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