Gas turbine engine valve

An apparatus comprising:

• a gas turbine engine valve housing having two inlets;
• a valve member having two ends in fluid communication with the two inlets;
• a temperature motor operable to change the position of the valve member upon changes in temperature of a working fluid from either or both of the two inlets;
• an energy storage device operable to change the position of the valve member upon changes in pressure of a working fluid at the two ends of the valve member;
• and
• wherein the valve member is operable to selectively close a first inlet at a first valve condition or a second inlet at a second valve condition;
• wherein the temperature motor is operable to move with the valve member;
• which further includes a cross conduit in fluid communication with the circumferential conduit and formed between and not extending beyond the two ends of the valve member.

An apparatus comprising:

• a gas turbine engine spool valve positioned within a valve housing;
• means for thermally positioning the gas turbine engine spool valve;
• and
• means for pressure positioning the gas turbine engine spool valve;
• the gas turbine engine spool valve having a spool and
• first and second inlets, the first inlet in relatively closer proximity to a first spool land than a second spool land and
• the second inlet in relatively closer proximity to a second spool land than to a first spool land,
• the first inlet in fluid communication with an end of the second spool land via a first conduit;
• the second inlet in fluid communication with an end of the first spool land via a second conduit that is different from the first conduit,
• wherein the first conduit is formed between and does not extend beyond the first spool land and the second spool land.

A method comprising:

• flowing a first portion of working fluid to a first inlet and a second portion of working fluid to a second inlet;
• positioning a gas turbine engine valve having a first end and a second end based upon a temperature of a mixture of the first portion and second portion;
• adjusting the gas turbine engine valve based upon a pressure difference of the first portion of working fluid upon the second end and a second portion of working fluid upon the first end;
• closing the first inlet at a first operating condition or the second inlet at a second operating condition;
• which further includes conveying the first portion of the working fluid from the first inlet to the second end via a conduit formed between and not extending beyond the first end and the second end.