FIELD: engines and pumps.
SUBSTANCE: channel communicating major and extra cylinders accommodates lip valve with shutter made of material with shape memory effect. At starting and warming-up of cold engine, lip valve shutter shuts off the channel communicating said major and extra cylinders. Said major cylinder works. Working medium cooling area is a minimum to start the engine easily and to warm it up faster. After warming-up of lip valve shutter, material undergoes martensite transformation to make said shutter change its shape to open said channel communicating said major and extra cylinders.
EFFECT: better starting performances.
2 dwg
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