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US 2015/0315974 A1Published application
Two spool gas generator with improved pressure split
AssigneeUnited Technologies Corporation
InventorsGabriel L. Suciu, Brian D. Merry, Karl L. Hasel, Jessica Tsay
Life of this patent
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Abstract
A gas turbine engine has a first shaft including a first compressor rotor. A second shaft includes a second compressor rotor disposed upstream of the first compressor rotor. The second compressor rotor has a first overall pressure ratio. The first compressor rotor has a second overall pressure ratio, with a ratio of the first overall pressure ratio to the second overall pressure ratio being greater than or equal to about 3.0.
Claims39
A gas turbine engine comprising:
- a first shaft including a first compressor rotor;
- a second shaft including a second compressor rotor disposed upstream of the first compressor rotor;
- and
- said second compressor rotor having a first overall pressure ratio, and said first compressor rotor having a second overall pressure ratio, with a ratio of said first overall pressure ratio to said second overall pressure ratio being greater than or equal to about 3.0.
1 more element
A gas turbine engine comprising:
- a first shaft connecting a first compressor rotor to be driven by a first turbine rotor;
- a second shaft connecting a second compressor rotor to be driven by a second turbine rotor, with said second compressor rotor being upstream of the first compressor rotor, and said first turbine rotor being upstream of said second turbine rotor;
- said second compressor rotor having a first overall pressure ratio, and said first compressor rotor having a second overall pressure ratio, with a ratio of said first overall pressure ratio to said second overall pressure ratio being greater than or equal to about 2.0;
- a propulsor turbine operatively connected to drive one of a fan or a propeller through a third shaft;
- and
- said first shaft surrounding said second shaft, but said first and second shaft not surrounding said third shaft.
3 more elements
Dependencies are inferred from the claim text.