VALVE STRUCTURE
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United States of America Patent
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N/A
Issued Date -
Nov 5, 2015
app pub date -
Nov 28, 2013
filing date -
Dec 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In this valve structure, in a state in which a reciprocating member moves towards the seat surface, a valve body moves to the position where the valve unit sits on the valve seat, and with the movement of the reciprocating member in the direction away from the seat surface, the valve body moves in the direction in which the valve unit moves away from the valve seat. The valve structure includes a seal member that has a seal lip slidably contacting the surface of the valve body. The valve body has a separating unit which separates from the seal lip to form a gap between the valve body and the seal lip, and the separating unit is configured such that the amount of fluid passing through the gap between the valve body and the seal lip increases as the valve unit moves away from the valve seat.
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