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US 2011/0236218 A1Published application
Hybrid ram air turbine
AssigneeHamilton Sundstrand Corporation
InventorsDavid Everett Russ, Michael E. Larson, JR.
Life of this patent
Estimating the term…
Abstract
An example a ram air turbine assembly (RAT) is mounted to an airframe and provides both electric power and hydraulic pressure. A turbine drives a drive shaft about an axis transverse to rotation of the turbine. The drive shaft in turn drives both a generator and a hydraulic pump at a common speed.
Claims19
A ram air turbine assembly comprising:
- a strut movable between a deployed position and a stowed position;
- a turbine supported by the strut;
- a drive shaft rotatable about a first axis transverse to rotation of the turbine;
- a generator driven by the drive shaft;
- and
- a hydraulic pump driven by the drive shaft.
3 more elements
A ram air turbine assembly comprising:
- a generator supported within a generator housing;
- a strut mounted to the generator housing;
- a gearbox supported on the strut;
- a turbine driving the gearbox;
- a drive shaft driven by the gearbox and extending through the strut to drive the generator;
- and
- a hydraulic pump coupled to the generator such that the hydraulic pump and the generator rotate at a common speed.
4 more elements
A method of providing emergency power in an aircraft including the steps of:
- driving a drive shaft along a first axis transverse to rotation of a turbine shaft driven by a turbine;
- and
- driving a generator and hydraulic pump with the drive shaft at a common speed about the first axis.
Dependencies are inferred from the claim text.