发明名称 GAS EXCHANGE VALVE ARRANGEMENT AND CYLINDER HEAD
摘要 <p>A gas exchange valve arrangement for a supercharged internal combustion engine, which arrangement comprises a gas exchange valve (1) having a valve head (2) and a valve stem (3) connected to the valve head (2), the arrangement further comprising a valve spring (4) being arranged around the valve stem (3) for creating a force for closing the valve (1), a chamber (5) being arranged around the valve stem (3), and thrust means (6, 19) being attached to the valve stem (3) and being movable in the direction of the longitudinal axis of the valve stem (3) together with the gas exchange valve (1). The arrangement comprises means (7, 14) for introducing pressurized charge from an air intake duct (10) of the engine air into the chamber (5) between the thrust means (6, 19) and the inner end of the chamber (5) for assisting in keeping the valve (1) closed. The invention also concerns a cylinder head (9).</p>
申请公布号 EP2670957(B1) 申请公布日期 2015.06.17
申请号 EP20120706626 申请日期 2012.01.30
申请人 WÄRTSILÄ FINLAND OY 发明人 HÖSTMAN, SÖREN;NYNÄS, HÅKAN;SUNDSTEN, MAGNUS
分类号 F01L1/32;F01L1/46;F01L3/10 主分类号 F01L1/32
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