US 11,703,128 B2
Spring loaded sleeve valve with controlled closing force
Connor Berube, Bloomfield, CT (US); and Myles R. Kelly, Willimantic, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Sep. 24, 2021, as Appl. No. 17/484,078.
Prior Publication US 2023/0109588 A1, Apr. 6, 2023
Int. Cl. F16K 1/12 (2006.01); F02C 6/08 (2006.01); F02C 9/18 (2006.01); F04D 27/02 (2006.01)
CPC F16K 1/123 (2013.01) [F02C 6/08 (2013.01); F02C 9/18 (2013.01); F04D 27/023 (2013.01); F04D 27/0215 (2013.01); F16K 1/126 (2013.01); F05D 2270/65 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sleeve valve comprising:
an inlet port and an outlet port, with a fluid chamber connecting the inlet port to the outlet port;
a sleeve valve movable to close flow from the inlet port to the outlet port, the sleeve valve having a sleeve being biased by a spring to an open position at which it allows flow from the inlet port to the outlet port, and the sleeve moving within a housing, and having a pressure chamber on an opposed side of the sleeve from the spring, such that pressure in the pressure chamber urges the sleeve to a closed position at which it blocks flow from the inlet port to the outlet port;
a line pressure conduit communicates the fluid chamber into the pressure chamber;
pressurized air supplied to the pressure chamber through a selectively closed valve, the selectively closed valve being opened to allow the flow of high pressure air from a pressure source through a high pressure conduit into the pressure chamber to move the sleeve to a closed position;
a control valve controls the high pressure air through the high pressure conduit into the pressure chamber when it is open, and a check valve provided on the line pressure conduit to block flow of the high pressure air moving back outwardly into the fluid chamber;
the control valve is a solenoid valve; and
the solenoid valve controls a position of a pressure relay valve, with the solenoid valve received on a first control conduit, and the pressure relay valve blocking flow through the high pressure conduit into the pressure chamber.