Gas turbine engine valve

摘要

A gas turbine engine valve is disclosed. In one form the valve includes two inlets in fluid communication with an outlet. The valve can include a spool having two lands capable of selectively closing either of the two inlets. The valve can include energy storage devices that initially position the spool within a valve housing. A temperature motor is provided to position the spool based upon a temperature of a mixture of working fluid from the two inlets. A working fluid flowing into the first inlet can be in fluid communication with a second end of the valve; and a working fluid flowing into the second inlet can be in fluid communication with a first end of the valve. A relatively high pressure condition at one or the other of the inlets can be used to alter a position of the valve.

主权项

1. An apparatus comprising:
a gas turbine engine spool valve having a spool and a first inlet in proximity to a first spool land and a second inlet in proximity to a second spool land, the first inlet in fluid communication with an end of the second spool land, the second inlet in fluid communication with an end of the first spool land, the spool operable to move with changes in temperature of a working fluid internal to the gas turbine engine spool valve, and operable to move with changes in pressure between a working fluid at the end of the first spool land and a working fluid at the end of the second spool land; and which further includes a first conduit formed between and not extending beyond the first spool land and the second spool land, the first conduit in fluid communication with the first inlet and the end of the second spool land.