Head for a two piece articulated piston

Details Head for a two piece articulated piston Head for a two piece articulated piston

1993-03-01

1994-06-07

Denion, Thomas E.

Expansible chamber devices

Piston

With ported chamber in piston part for circulating heat...

92187, 1231936, F01B 3108

Patent

active

053179587

ABSTRACT:
A method for the manufacture of a cooled piston head in which the upper and lower portions of the piston head are made separately a metal plate is placed on the lower side of the upper portion; then the upper portion incorporating the metal plate is joined to the lower portion by friction welding. The metal plate is provided with a central hole for the passage of cooling oil onto the undercrown, and means of communication with a closed cooling chamber defined by a circumferential groove on the head upper portion and the peripheral outer surface of the metal plate.

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