INTERCOOLED COOLING AIR WITH PLURAL HEAT EXCHANGERS
First Claim
1. A gas turbine engine comprising;
- a main compressor section having a high pressure compressor with a downstream most end, and more upstream locations;
a turbine section having a high pressure turbine;
a first tap tapping air from at least one of said more upstream locations in said main compressor section, passing said tapped air through a first heat exchanger and then to a cooling compressor;
a second tap tapping air from a location closer to said downstream most end than the location of said first tap, and said first and second taps mixing together and being delivered into said high pressure turbine;
said cooling compressor being positioned downstream of said first heat exchanger, and upstream of a location where air from said first and second taps mix together.
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Accused Products
Abstract
A gas turbine engine comprises a main compressor section having a high pressure compressor with a downstream most end, and more upstream locations. A turbine section has a high pressure turbine. A first tap taps air from at least one of the more upstream locations in the main compressor section, passing the tapped air through a first heat exchanger and then to a cooling compressor. A second tap taps air from a location closer to the downstream most end than the location of the first tap, and the first and second taps mix together and are delivered into the high pressure turbine. The cooling compressor is positioned downstream of the first heat exchanger, and upstream of a location where air from the first and second taps mix together.
21 Citations
20 Claims
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1. A gas turbine engine comprising;
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a main compressor section having a high pressure compressor with a downstream most end, and more upstream locations; a turbine section having a high pressure turbine; a first tap tapping air from at least one of said more upstream locations in said main compressor section, passing said tapped air through a first heat exchanger and then to a cooling compressor; a second tap tapping air from a location closer to said downstream most end than the location of said first tap, and said first and second taps mixing together and being delivered into said high pressure turbine; said cooling compressor being positioned downstream of said first heat exchanger, and upstream of a location where air from said first and second taps mix together. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A gas turbine engine comprising;
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a main compressor section having a high pressure compressor with a downstream most end, and more upstream locations; a turbine section having a high pressure turbine; a first tap tapping air from at least one of said more upstream locations in said main compressor section, passing said tapped air through a first heat exchanger and then to a cooling compressor, said cooling compressor compressing air downstream of said first heat exchanger; a second heat exchanger downstream of said cooling compressor; a second tap tapping air from a location closer to said downstream most end than the location of said first tap, wherein air from said first and second taps mixing together and being delivered into said high pressure turbine; and air being tapped from a third tap downstream of said second heat exchanger, and delivered to a component on the gas turbine engine to be cooled. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification