公开(公告)号：US5339775A

公开(公告)日：1994-08-23

申请号：US176928

申请日：1994-01-03

申请人： John M. Clarke ,  Padmanabhan R. Ranganathan

发明人： John M. Clarke ,  Padmanabhan R. Ranganathan

IPC分类号： F01P3/10 ,  F02B75/28 ,  F02F1/10 ,  F02F3/18 ,  F07P1/04

CPC分类号： F02B75/28 ,  F02F3/18

摘要： Conventional cooling arrangements for the piston assemblies mounted within an engine block include the use of coolant that is circulated through the engine block. Generally, a plurality of cavities or water jackets are positioned in areas of high heat production within the engine block and the coolant is circulated between them and a radiator dissipate the heat created through engine operation. This method of cooling however requires the engine block to be stationary with respect to the pistons that reciprocated within to facilitate the circulation of the coolant within the block. The present invention provides a cooling arrangement for a first piston member that reciprocates within an engine block and in turn mounts at least one second piston member therewithin. The first piston member includes a sealed cavity that is positioned about a bore in which the second piston member is mounted for reciprocation. The cavity contains a cooling agent that dissipates the heat created within the first piston member as it reciprocates within the engine block.

摘要翻译： 安装在发动机缸体内的活塞组件的常规冷却装置包括使用通过发动机缸体循环的冷却剂。 通常，多个空腔或水套被定位在发动机缸体内的高发热区域中，并且冷却剂在它们之间循环并且散热器耗散通过发动机运转产生的热量。 然而，这种冷却方法要求发动机缸体相对于往复运动的活塞是静止的，以便于冷却剂在块内的循环。 本发明提供了一种用于第一活塞构件的冷却装置，该第一活塞构件在发动机缸体内往复运动，并在其中安装至少一个第二活塞构件。 第一活塞构件包括密封空腔，其围绕第二活塞构件安装用于往复运动的孔定位。 空腔包含冷却剂，其在第一活塞构件内产生的热量在其在发动机缸体内往复运动时消散。