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US 11,890,632 B1Granted
Variable pressure regulators and associated methods
AssigneeHusqvarna AB
InventorsAndrew Richard Morris, Eric Tres Wangsgaard, Jonathan Taylor Merrill
Life of this patent
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Abstract
A variable pressure regulator defining a distance between a proximal end of a piston and a floor of a piston seat is disclosed. Adjustment mechanisms for adjusting this distance to alter output pressure are disclosed.
Claims20
A variable pressure regulator having an axial dimension and a lateral dimension, the variable pressure regulator comprising:
- a pressure regulator housing;
- a pressure regulator assembly disposed within the pressure regulator housing, the pressure regulator assembly comprising a piston, a regulator spring, a spring support, and a piston seat, the piston being movable along the axial dimension in response to the regulator spring and fluid pressure when the variable pressure regulator is in an operational state;
- the piston seat comprising one or more entry openings and a floor, the floor comprising a proximal region;
- the piston comprising a proximal end and a distal end, the proximal end being closer to the floor of the piston seat than the distal end along the axial dimension, the proximal region of the floor comprising that region of the floor closest to the proximal end of the piston along the axial dimension;
- wherein the regulator spring biases the piston away from the spring support,
- wherein the pressure regulator assembly defines a central passageway in fluid communication with the one or more entry openings;
- and
- the pressure regulator assembly further comprising an adjustment mechanism shaped and arranged to alter a resting axial distance intermediate the proximal end of the piston and the proximal region of the floor when the variable pressure regulator is in a resting state.
5 more elements
A variable pressure regulator having an axial dimension and a lateral dimension, the variable pressure regulator comprising:
- a pressure regulator housing;
- a pressure regulator assembly disposed within the pressure regulator housing, the pressure regulator assembly comprising a piston and a piston seat, the piston being movable along the axial dimension when the variable pressure regulator is in an operational state;
- the piston seat comprising a floor, the floor comprising a proximal region;
- the piston comprising a proximal end and a distal end, the proximal end being closer to the floor of the piston seat than the distal end along the axial dimension, the proximal region of the floor comprising that region of the floor closest to the proximal end of the piston along the axial dimension;
- and
- the pressure regulator assembly further comprising an adjustment mechanism shaped and arranged to alter a resting axial distance intermediate the proximal end of the piston and the proximal region of the floor when the pressure regulator is in a resting state.
3 more elements
A variable pressure regulator having an axial dimension and a lateral dimension, the variable pressure regulator comprising:
- a pressure regulator housing;
- a pressure regulator assembly disposed within the pressure regulator housing, the pressure regulator assembly comprising a piston and a piston seat, the piston being movable along the axial dimension when the variable pressure regulator is in an operational state;
- the piston seat comprising a floor, the floor comprising a proximal region;
- the piston comprising a proximal end and a distal end, the proximal end being closer to the floor of the piston seat than the distal end along the axial dimension, the proximal region of the floor comprising that region of the floor closest to the proximal end of the piston along the axial dimension;
- and
- the pressure regulator assembly further comprising an adjustment mechanism shaped and arranged to alter a resting axial distance intermediate the proximal end of the piston and the proximal region of the floor when the pressure regulator is in a resting state, wherein the adjustment mechanism is selected from a group consisting of a threaded adjustment mechanism and a snap-fit adjustment mechanism.
3 more elements
Dependencies are inferred from the claim text.