VARIABLE CAPACITY PISTON PUMP
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United States of America Patent
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Issued Date -
Jul 27, 2017
app pub date -
Jul 2, 2015
filing date -
Jul 16, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A variable capacity piston pump including a control piston pressing a pressed portion of a swashplate from a cylinder block side to adjust an inclination of the swashplate between a maximum inclination and a minimum inclination, and a swashplate return spring biasing the pressed portion of the swashplate toward the cylinder block side of the sliding contact surface, wherein there is a positional relationship in which a vertical reference line passes between a first seat surface center position of the swashplate return spring when the swashplate is at the maximum inclination and a second seat surface center position of the swashplate return spring when the swashplate is at the minimum inclination.
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