High performance resin piston internal combustion engine

Details High performance resin piston internal combustion engine High performance resin piston internal combustion engine

2009-04-01

2011-11-22

McMahon, M. (Department: 3783)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

C123S193600, C123S193200

Reexamination Certificate

active

08061324

ABSTRACT:
A piston-type internal combustion engine is formed of a high performance synthetic resin material. The cylinders and pistons have an octagonal profile. Two or three rows of pin roller bearings are positioned in transverse semi-cylindrical grooves formed on the cylinder walls, to afford smooth, low-friction rolling contact and to seal the compression from leaking around the piston. There are angle support pieces fitted within the annular channels at respective vertices or corners, and are adapted for rotationally supporting the ends of adjacent pin roller bearings.

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