Pistons and piston castings

Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means

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Details

92208, 92234, F01B 3110

Patent

active

047305479

ABSTRACT:
A piston casting for forming a piston for an internal combustion engine or compressor comprises a generally cylindrical crown (10) having a ring belt (11) extending around the crown for the formation therein of one or more piston ring grooves. A gudgeon pin bore (14) extends through the piston casting in a direction normal to the piston axis and two opposed skirt thrust surfaces (17) depend from the ring belt and are symetrically disposed about a plane including the piston axis and normal to the gudgeon pin bore axis. The surfaces extend only part the way around the piston casting and terminate in respective spaced generally axially extending edges (18), each skirt thrust surface being extended circumferentially beyond the associated edges (at 19) at the ends of the edges remote from the crown.

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Scientific Publications Workshop Manual Series No. 75, "Holden HK Series", Scientific Publications Pty. Limited-Dec. 1969.
The Goodheart-Willcox Co., Inc. 1975-"Autoservice and Repair".
Page 55 of the Catalogue of J. C. Whitney & Co., "Automotive Parts and Accessories, Catalogue No. 295".

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