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US 2013/0259652 A1Published application
Geared architecture with inducer for gas turbine engine
AssigneeUnited Technologies Corporation
InventorsDaniel Bernard Kupratis, Frederick M. Schwarz
Life of this patent
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Abstract
A gas turbine engine includes first and second shafts rotatable about a common axis. A first turbine section is supported on the first shaft. Second compressor and turbine sections are supported on the second shaft. The gas turbine engine includes a fan. A first compressor section is arranged in an axial flow relationship with the second compressor and the first and second turbines. A geared architecture operatively connects the first shaft and the fan. An inducer operative couples to the gear train.
Claims21
A gas turbine engine comprising:
- first and second shafts rotatable about a common axis;
- a first turbine section supported on the first shaft;
- second compressor and turbine sections supported on the second shaft;
- a fan;
- a first compressor section arranged in an axial flow relationship with the second compressor and the first and second turbines;
- a geared architecture operatively connecting the first shaft and the fan;
- and
- an inducer operative coupled to the gear train.
5 more elements
A gas turbine engine comprising:
- first and second shafts rotatable about a common axis;
- a first turbine section supported on the first shaft;
- second compressor and turbine sections supported on the second shaft;
- a fan;
- a first compressor section arranged in an axial flow relationship with the second compressor and the first and second turbines;
- a geared architecture operatively connecting the first shaft and the fan, the geared architecture includes first and second gear trains, the first gear train an epicyclic gear train, and the second gear train configured to provide a speed reduction;
- an inducer operative coupled to the gear train;
- a bypass flow path and a core flow path, the first and second compressor and turbine sections arranged in the core flow path, and the fan extending into the bypass flow path, the inducer arranged in the core flow path outside of the bypass flow path and upstream from the first compressor section;
- and
- wherein the first and second shafts respectively provide low and high spools, and the first compressor and turbine sections are low pressure compressor and turbine sections, and the second compressor and turbine sections are high pressure compressor and turbine sections.
7 more elements
Dependencies are inferred from the claim text.