Self-regulating storm water control valve
OwnerJoseph O'Brien, Brandon Habininventors
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Abstract
A mechanical flow control valve for use in low pressure hydraulic systems, the valve includes a flow tube having an inlet and an outlet, a flow restrictor within a flow path, a fixed piston within the flow tube, a movable plunger assembly slidably attached to the fixed piston, the plunger assembly including a plunger head having a profile shape at least a portion of which increases toward the inlet. The movable plunger assembly is biased toward the inlet of the flow tube and is configured to move within the flow restrictor in response to one or more flow induced forces on the moveable plunger assembly thereby maintaining a target designed flow rate through the flow restrictor.
Claims9
A mechanical flow control valve for use in low pressure hydraulic systems, the valve comprising:
- a flow tube having an inlet and an outlet;
- a flow restrictor within a flow path;
- a fixed piston within the flow tube;
- a movable plunger assembly slidably attached to the fixed piston, the moveable plunger assembly including a plunger head having a profile shape at least a portion of which increases toward the inlet, wherein the moveable plunger assembly and the fixed piston create a compressible air volume used to bias the moveable plunger assembly;
- and
- a low friction sleeve liner between the moveable plunger assembly and the fixed piston;
- wherein the movable plunger assembly is biased toward the inlet of the flow tube;
- and
- wherein the movable plunger assembly is configured to move within the flow restrictor in response to one or more flow induced forces on the moveable plunger assembly, thereby reducing flow through the flow restrictor.
Dependencies are inferred from the claim text.