PUMP WITH CENTRALIZED SPRING FORCES
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United States of America Patent
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Issued Date -
Apr 4, 2013
app pub date -
Oct 4, 2011
filing date -
Oct 4, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pump including a tappet biased into contact with a camshaft by a return spring is provided. The pump includes a torque transfer reduction interface mechanically interposed between the return spring and the tappet. The torque transfer reduction interface is configured to prevent spring wind-up generated by compressing and expanding the return spring from being transferred to the tappet to prevent the torque from causing the tappet to rotate relative to the camshaft about an axis extending perpendicular to the rotational axis of the camshaft.
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