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US 12,320,438 B2Granted
High stability regulator
AssigneeThe Oilgear Company
InventorsJared Schlueter, Dan Mizell
Life of this patent
Estimating the term…
Abstract
A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.
Claims12
A hydraulic regulator comprising:
- a vent valve that opens to provide a fluid path from a regulated pressure port to a vent port;
- a supply valve that opens to provide a fluid path from the regulated pressure port to a supply pressure port;
- and a control piston having a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply valve;
- wherein the vent cam and the supply cam are spaced apart axially along the control piston and the vent valve and the supply valve are spaced apart from one another such that only one of the vent valve and the supply valve are opened at once;
- and wherein the vent valve and the supply valve engage the control piston between the vent cam and the supply cam.
2 more elements
Dependencies are inferred from the claim text.