Method for the manufacture of a cooled piston
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United States of America Patent
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May 10, 1994
Issued Date -
N/A
app pub date -
Jan 11, 1993
filing date -
Oct 18, 1990
priority date (Note) -
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Abstract
A cooled piston head and method of manufacture, the piston head having a closed cooling chamber. In one embodiment, the piston head is formed of a top member, an intermediate member and a pin boss member joined to each other preferably by welding; the top and intermediate members are provided with circumferential grooves which defines the closed cooling chamber. In an alternate embodiment, the head is formed of a top member and a pin boss member joined together preferably by welding; the closed cooling chamber is defined by circumferential grooves provided on both members.
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