Swash plate with polyfluoro elastomer coating
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United States of America Patent
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Aug 12, 1997
Grant Date -
N/A
app pub date -
Dec 7, 1995
filing date -
Dec 7, 1995
priority date (Note) -
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Abstract
A swash plate type compressor having a cylinder block with cylinder bores disposed parallel to the axis of the cylinder block. A rotary shaft rotatably mounted within the cylinder block carries an aluminum swash plate. The swash plate is fixed to the rotary shaft and has two facial surfaces and an end surface. The facial surfaces have a coating of between 0.0005 inches to 0.002 inches of a heat curable, cross-linked polyfluoro elastomer bonded directly to the aluminum, a lubricious additive and a load bearing additive. A piston reciprocally fitted within the cylinder bore contains shoes which slideably intervene between the piston and the swash plate facial surfaces and reciprocate the pistons by rotation of the swash plate. The coating on the swash plate permits the use of slow silicon alloy aluminum without the need of metal plating or high finish polishing.
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