Burner pressure transducer thermal management design
AssigneeHamilton Sundstrand Corporation
InventorThomas O. Harris
Life of this patent
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Abstract
A system for reducing moisture in a burner pressure sensing line in a gas turbine engine. A water trap is mounted on the burner pressure sensing line with an inlet for receiving burner pressure air and an outlet for transferring burner pressure air to the sensor. A heat sink is positioned inside the water trap for condensing moisture contained in the burner pressure air. Finned tubes are used to passively control the temperature of the burner pressure line. A deadheaded chamber provides an alternative location for the moist air to condense when the gas is compressed at higher pressure.
Claims20
A burner pressure sensing system in a gas turbine engine, the system comprising:
- a burner pressure sensing line for sensing burner pressure, the burner pressure sensing line extending from a source of burner pressure air to a pressure sensor;
- the pressure sensor for producing a burner pressure signal representative of sensed burner pressure;
- a water trap fluidically coupled to the burner pressure sensing line;
- a first heat sink positioned inside the water trap for condensing moisture contained in the burner pressure air;
- an outlet on the water trap for removing condensed moisture;
- and
- a finned heat sink tube used to passively control the temperature of the burner pressure line to minimize condensation.
A device for reducing moisture in a burner pressure sensing line in a gas turbine engine having a burner pressure air source and a burner pressure sensor proximate the electronic engine control housing, the device comprising:
- a water trap mounted at a point on the burner pressure sensing line with an inlet for receiving burner pressure air from the burner pressure air source and an outlet for transferring burner pressure air to the burner pressure sensor;
- a heat sink positioned inside the water trap for condensing moisture contained in the burner pressure air;
- an outlet on the water trap for removing condensed moisture;
- a deadheaded chamber to providing an alternative location for the moist air to condense when the gas is compressed at higher pressure.
A method for reducing moisture in a burner pressure sensing line in a gas turbine engine having a burner pressure air source and a burner pressure sensor proximate the electronic engine control housing, comprising:
- supplying air from the burner pressure air source into a water trap at a point on the burner pressure sensing line;
- condensing moisture contained in the burner pressure air using a heat sink inside the water trap;
- withdrawing condensed moisture through an outlet on the water trap;
- and
- supplying the burner pressure air from the water trap through the burner pressure sensing line to the pressure sensor. and
Dependencies are inferred from the claim text.