Fluid control device
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United States of America Patent
Stats
-
Aug 6, 2024
Grant Date -
Jul 20, 2023
app pub date -
May 24, 2021
filing date -
Jun 4, 2020
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fluid control device includes a housing partitioned into an input chamber and an output chamber by a housing land portion extending on the radially inner side, a spool arranged inside the housing and provided with a spool land portion that is configured to reciprocatively slide with respect to the housing land portion and that extends on a radially outer side of the spool, and a biasing member configured to bias the spool toward a valve closing position, wherein upon receiving drive force from an exterior, the spool is moved against bias force of the biasing member, and the input chamber and the output chamber communicate with each other, the spool includes a large diameter portion arranged in the input chamber and having a larger diameter than the spool land portion, and the large diameter portion and the housing land portion form a poppet valve structure.
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