METHOD AND SYSTEMS FOR BLEED AIR SUPPLY
First Claim
Patent Images
1. An integrated ejector valve assembly comprising:
- a first valve assembly configured to control a flow of relatively lower pressure fluid from a first inlet port;
a second valve assembly configured to control a flow of relatively higher pressure fluid from a second inlet port;
a first actuation chamber configured to close said first valve assembly;
a second actuation chamber configured to close said second valve assembly; and
a third actuation chamber configured to open said second valve assembly.
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Abstract
A method and system for an integrated ejector valve assembly is provided. The integrated ejector valve assembly includes a first valve assembly configured to control a flow of relatively lower pressure fluid from a first inlet port, a second valve assembly configured to control a flow of relatively higher pressure fluid from a second inlet port, a first actuation chamber configured to close the first valve assembly, a second actuation chamber configured to close the second valve assembly, and a third actuation chamber configured to open the second valve assembly.
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Citations
20 Claims
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1. An integrated ejector valve assembly comprising:
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a first valve assembly configured to control a flow of relatively lower pressure fluid from a first inlet port; a second valve assembly configured to control a flow of relatively higher pressure fluid from a second inlet port; a first actuation chamber configured to close said first valve assembly; a second actuation chamber configured to close said second valve assembly; and a third actuation chamber configured to open said second valve assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of supplying engine bleed air to an aircraft using a first integrated ejector valve assembly, said method comprising:
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controlling a flow of a relatively lower pressure fluid received at the first integrated ejector valve assembly using a first valve assembly; controlling a flow of a relatively higher pressure fluid received at the first integrated ejector valve assembly using a second valve assembly; and maintaining a pressure in an outlet of the first integrated ejector valve assembly using the controlled flow of relatively lower pressure fluid and the controlled flow of relatively higher pressure fluid. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An aircraft system comprising:
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a first gas turbine engine comprising a first high pressure bleed port and a first low pressure bleed port; a second gas turbine engine comprising a second high pressure bleed port and a second low pressure bleed port; an engine bleed air header configured to channel bleed air at a selectable pressure to the aircraft; a first integrated ejector valve assembly coupled in flow communication between said first high pressure bleed port and first low pressure bleed port, and said engine bleed air header; a second integrated ejector valve assembly coupled in flow communication between said second high pressure bleed port and second low pressure bleed port, and said engine bleed air header; and a controller communicatively coupled to said first integrated ejector valve assembly and said second integrated ejector valve assembly, said controller configured to substantially match an output flow of said first integrated ejector valve assembly and said second integrated ejector valve assembly. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification