Mounting structure of a multiple piston ring

Details Mounting structure of a multiple piston ring Mounting structure of a multiple piston ring

1990-04-06

1990-10-16

Look, Edward K.

Expansible chamber devices

Piston

Open-ended hollow skirt type

123198P, 277137, 277150, 277136, 92261, F16J 104

Patent

active

049626914

ABSTRACT:
This invention relates to a mounting structure of a multiple piston ring for various internal combustion engines. A plurality of piston rings are all wrapped in a cylindrical groove formed upon an outer surface of a piston so that a gap of one piston ring cannot face to a gap of the other piston ring, namely respective gaps of the plurality of piston rings are spaced each other with a certain distance. In order to prevent such a facing of two or more gaps that may occur due to a rotation of the piston rings, a stop pin is mounted on a piston wall so as to engage with a gap of one piston ring or formed as a convex protrusion on one piston ring so as to engage with a gap of the other piston ring. Since respective gaps of the piston rings are not faced to each other, it is possible to prevent any back pressure gas leakage from such gaps of the piston rings.

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