US 12,480,598 B2
Systems and methods for determining valve flutter
Patrick Begley, Boulder, CO (US); Myles R. Kelly, Willimantic, CT (US); Ronald D. Poisson, Longmeadow, MA (US); and Robert Mackinnon, Portland, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Oct. 16, 2023, as Appl. No. 18/380,534.
Prior Publication US 2025/0122951 A1, Apr. 17, 2025
Int. Cl. F16K 37/00 (2006.01); F16K 15/03 (2006.01)
CPC F16K 37/0041 (2013.01) [F16K 15/03 (2013.01); F16K 15/031 (2013.01); F16K 15/033 (2013.01); F16K 15/034 (2021.08); F16K 15/035 (2013.01); F16K 15/036 (2013.01); F16K 37/0025 (2013.01); F16K 37/0083 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system, comprising:
a conduit configured to convey a fluid flow therethrough;
a valve disposed in the conduit configured to block or allow flow through the conduit based on a position of the valve, the valve including a valve pin and two valve flaps operatively connected to pivot about the valve pin with the flow of the fluid through the conduit, wherein the two valve flaps include an electrically conductive valve flap and an electrically insulative valve flap;
a valve stop disposed in the conduit proximate a distal end of the two valve flaps such that the valve stop is configured to define the fully open position of the two valve flaps;
a first wire configured to electrically connect the valve stop to a voltage source;
a second wire configured to electrically connect the valve pin to a return of the voltage source, wherein the voltage source, the valve stop, and the electrically conductive valve flap operatively connected to the valve pin are configured to create a closed valve circuit when the electrically conductive valve flap is in a fully open position with the electrically conducitve valve flap contacting the valve stop, and an open valve circuit when the electrically conductive valve flap is not in the fully open position; and
a meter operatively connected to measure an electrical characteristic of the valve circuit to determine whether the electrically conductive valve flap is in the fully open position based on an open/closed status of the valve circuit.