Swash plate type piston pump motor and method for manufacturing the same
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United States of America Patent
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Apr 23, 2013
Grant Date -
May 6, 2010
app pub date -
Jan 22, 2008
filing date -
Mar 29, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a method for manufacturing a swash plate type piston pump motor in which: a plurality of pistons are arranged in a circumferential direction on a cylinder block configured to rotate with a rotating shaft; the pistons are guided along a swash plate to reciprocate by rotation of the rotating shaft; a convex portion of the swash plate is slidably supported by a recess of a swash plate support; and a wall formed integrally with the swash plate support is arranged on a normal to at least a part of a supporting surface of the recess, wherein: the supporting surface of the recess is quenched by irradiating the supporting surface with laser light while causing the laser light to scan the supporting surface; and outputs of the laser light are changed in accordance with incidence angles of the laser light with respect to the supporting surface.
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