Proportional Valve with an Unseater Spring
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United States of America
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Jan 7, 2020
Grant Date -
Jan 23, 2020
app pub date -
Jul 17, 2018
filing date -
Jul 17, 2018
priority date (Note) -
Published
status (Latency Note)
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Abstract
An example valve includes: a sleeve; a first poppet configured to be seated on a first seat defined on an interior surface of the sleeve when the valve is in a closed state, and where the first poppet is configured to move axially within the sleeve; a second poppet disposed, at least partially, in the first poppet, where the second poppet is configured to be seated on a second seat defined on an interior surface of the first poppet, and where the second poppet is configured to move axially within the first poppet; a first spring that interfaces with the second poppet and applies a first force on the second poppet in a distal direction toward the second seat; and a second spring that interfaces with the second poppet and applies a second force on the second poppet in a proximal direction opposite the distal direction.
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