Piston rings

Details Piston rings Piston rings

F - Mech Eng,Light,Heat,Weapons

16

J

26/15, 123/245,

F16J 9/26 (2006.01) F16J 9/28 (2006.01) F02B 1/04 (2006.01)

Patent

CA 1254919

ABSTRACT OF THE DISCLOSURE A piston ring is formed from a plastics material and has a maximum pressure against the associated cylinder of between 0.10 and 1.50 MN/m2 and preferably 0.50 MN/m2. One possible material for such piston rings is polyetheretherketone. The benefits obtained are greater conformability which leads to a reduction in the number of piston rings which need be used for a particular piston. This in turn reduces friction so increasing the performance of the associated engine. Acceptable wear rates and ability to withstand operating temperatures have been found in these piston rings. Fig. No. 8

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