公开(公告)号：US3777722A

公开(公告)日：1973-12-11

申请号：US3777722D

申请日：1970-09-01

Applicant: LENGER K

Inventor： LENGER K

IPC: F02B75/02 ,  F04B31/00 ,  F04B39/00 ,  F04B39/12 ,  F02B71/00 ,  F02D39/10 ,  F02F1/20

CPC classification number: F04B31/00 ,  F02B2075/025 ,  F04B39/0005 ,  F04B39/12 ,  F05C2201/0466 ,  F05C2253/12

Abstract: A piston engine comprises a cylinder defining a combustion chamber, a ringless piston reciprocally mounted within the cylinder, the cylinder having means spaced from the combustion chamber and defining a zone of reduced clearance around the piston. This zone-defining means includes means for lubricating the zone to reduce friction. The lubricating means may comprise a gas-flow arrangement, or a bushing formed of self-lubricating material, or both of these features. The cylinder and piston are fabricated from materials having a maximum coefficient of thermal expansion of 30 X 10 7/* C. The engine may include a compressor piston reiprocal in a compressor cylinder which are designed for minimal heat expansion.

Abstract translation: 活塞发动机包括限定燃烧室的气缸，往复安装在气缸内的无环活塞，气缸具有与燃烧室间隔开并且围绕活塞限定了减小的间隙的区域。 该区域限定装置包括用于润滑该区域以减少摩擦的装置。 润滑装置可以包括气流装置或由自润滑材料形成的套管，或这两个特征。 气缸和活塞由具有最大热膨胀系数为30×10 -7 /℃的材料制成。发动机可以包括在压缩机气缸中相互重叠的压缩机活塞，其设计用于最小的热膨胀。