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US 2013/0239582 A1Published application
Constant speed pump system for engine ecs loss elimination
AssigneeUnited Technologies Corporation
InventorsGabriel L. Suciu, Brian D. Merry, Jorn A. Glahn, Christopher M. Dye
Life of this patent
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Abstract
A gas turbine engine has an impeller pump for delivering air to an environmental control system and a speed control pump connected to the impeller pump for driving the impeller pump at a constant speed.
Claims20
A gas turbine engine comprising:
- an impeller pump for supplying air to an environmental control system;
- and
- a speed control pump connected to said impeller pump for driving said impeller pump at a constant speed.
A system for providing air to an environmental control system, said system comprising:
- an engine having a drive shaft;
- an air supply pump driven by said drive shaft for supplying said air to said environmental control system.
An engine comprising:
- an engine core;
- a speed control pump positioned on the engine core;
- a spool;
- a towershaft connected to the spool via a drive gear and connected to said speed control pump;
- and
- a pump for supplying air to an environmental control system connected to said speed control pump.
3 more elements
Dependencies are inferred from the claim text.