Systems and methods for pump slip sensing
AssigneeCarlisle Fluid Technologies, Inc.
InventorEric Julius Donaldson
Life of this patent
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Abstract
A system includes a fluid pump and a first pressure sensor disposed on or near an inlet of the fluid pump. The system further includes a second pressure sensor disposed on or near an outlet of the fluid pump and a control system. The control system includes a processor configured to receive a first signal from the first pressure sensor. The processor is further configured to receive a second signal from the second pressure sensor, and to derive a pump slip measure based on the first signal and the second signal.
Claims15
A system, comprising:
- one or more fluid pumps;
- a first pressure sensor disposed on or near an inlet of a fluid pump of the one or more fluid pumps;
- a second pressure sensor disposed on or near an outlet of the fluid pump;
- a second fluid pump, wherein the fluid pump is configured to deliver an A compound to a foam dispensing gun and the second fluid pump is configured to deliver a B compound to the foam dispensing gun;
- and
- a control system comprising a processor configured to:
- receive a first signal from the first pressure sensor;
- receive a second signal from the second pressure sensor;
- derive a pump slip measure based on the first signal and the second signal;
- and
- derive the pump slip measure via an orifice flow analysis.
A method, comprising:
- receiving a first signal from a first pressure sensor, wherein the first pressure sensor is disposed on or near an inlet of one or more fluid pumps;
- receiving a second signal from a second pressure sensor, wherein the second pressure sensor is disposed on or near an outlet of the one or more fluid pumps;
- using a second fluid pump, wherein the fluid pump is configured to deliver an A compound to a foam dispensing gun and the second fluid pump is configured to deliver a B compound to the foam dispensing gun;
- and
- deriving a pump slip measure based on the first signal and the second signal, wherein deriving the pump slip measure comprises performing an orifice flow analysis and wherein performing the orifice flow analysis comprises calculating a slip Q where Q(t)=Pf×Ff×∫ΔP1/2dt such that t comprises a sample time period, Pf=Pump Factor, Ff=Fluid Factor, ΔP=Po−Pi, wherein Po=Outlet pressure of the fluid pump, and Pi=Inlet pressure of the fluid pump.
A tangible, non-transitory, computer-readable medium comprising instructions that when executed by a processor cause the processor to:
- receive a first signal from a first pressure sensor, wherein the first pressure sensor is disposed on or near an inlet of one or more fluid pumps;
- receive a second signal from a second pressure sensor, wherein the second pressure sensor is disposed on or near an outlet of the one or more fluid pumps;
- control a second fluid pump, wherein the fluid pump is configured to deliver an A compound to a foam dispensing gun and the second fluid pump is configured to deliver a B compound to the foam dispensing gun;
- and
- derive a pump slip measure based on the first signal and the second signal wherein the instructions that cause the processor to derive the pump slip measure comprise instructions that cause the processor to perform an orifice flow analysis, and wherein the instructions that cause the processor to perform the orifice flow analysis comprise instructions that cause the processor to calculate a slip Q where Q(t)=Pf×Ff×∫ΔP1/2dt such that t comprises a sample time period, Pf=Pump Factor, Ff=Fluid Factor, ΔP=Po−Pi, wherein Po=Outlet pressure of the fluid pump, and Pi=Inlet pressure of the fluid pump.
A tangible, non-transitory, computer-readable medium comprising instructions that when executed by a processor cause the processor to:
- receive a first signal from a first pressure sensor, wherein the first pressure sensor is disposed on or near an inlet of one or more fluid pumps;
- receive a second signal from a second pressure sensor, wherein the second pressure sensor is disposed on or near an outlet of the one or more fluid pumps;
- control a second fluid pump, wherein the fluid pump is configured to deliver an A compound to a foam dispensing gun and the second fluid pump is configured to deliver a B compound to the foam dispensing gun;
- and
- derive a pump slip measure based on the first signal and the second signal, wherein the instructions that cause the processor to derive the pump slip measure comprise instructions that cause the processor to apply a zero-flow pressurized state.
Dependencies are inferred from the claim text.