Runaway valve system for a pump
AssigneeCarlisle Fluid Technologies, Inc.
InventorChristopher Lee Strong
Life of this patent
Estimating the term…
Abstract
A system includes a pump. The pump includes a piston configured to axially reciprocate within a body. The axial movement of the piston activates a first chamber valve and a second chamber valve. The system also includes a main valve configured to direct a flow to the pump to facilitate the axial movement which then transfers a fluid from a reservoir to a spray applicator. The system includes a runaway valve system fluidly coupled to the main valve and configured to detect a runaway state of the pump. The runaway valve system is configured to direct the main valve to stop operation of the pump in response to detection of the runaway state.
Claims20
A system, comprising:
- a pump comprising a piston configured to axially reciprocate within a body, wherein axial movement of the piston activates a first chamber valve and a second chamber valve;
- a main valve configured to direct a flow to the pump to facilitate the axial movement which then transfers a fluid from a reservoir to a spray applicator;
- and
- a runaway valve system fluidly coupled to the main valve and configured to detect a runaway state of the pump, wherein the runaway valve system is configured to direct the main valve to stop operation of the pump in response to detection of the runaway state.
A runaway valve system, comprising:
- a housing;
- a signal valve positioned within the housing, wherein the signal valve is configured to receive a first signal from a pump indicative of a first piston position, and a second signal from the pump indicative of a second piston position;
- and
- a control valve configured to receive a third signal from the signal valve indicative of a runaway state.
A system, comprising:
- a pump configured to pump a fluid from a reservoir to a spray applicator;
- an air supply configured to output a volume of air;
- a main valve configured to receive the volume of air from the air supply and to distribute the volume of air to the pump to enable axial reciprocation within a body to control operation of the pump;
- and
- a runaway valve system configured to receive a first signal from the pneumatic pump indicative of a first axial position of the pump and a second signal from the pump indicative of a second axial position of the pump, wherein the runaway valve system determines if the pump is operating in a runaway state, and stops operation of the pump if the pump is operating in the runaway state.
Dependencies are inferred from the claim text.