HIGH RELIABILITY GENERATOR WITH DUAL DRIVE PATH
First Claim
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1. An electrical generator, comprising:
- a first generator having a stator and a rotor;
a second generator having a stator and a rotor;
a drive gear that is connected to the rotor of the first generator to rotationally drive the rotor of the first generator; and
a drive shaft that is connected to the drive gear to rotationally drive the rotor of the second generator, wherein a portion of the drive shaft has a shear section formed therein to break apart the drive shaft at the shear section when a predetermined load condition within the second generator occurs, wherein when the predetermined load condition causes the shear section to break apart the rotational driving of the rotor of the first generator by the drive gear continues.
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Abstract
A generator arrangement is provided in which the functionality of two typically separate electrical power generators are combined together into a single generator that forms part of a three-in-one combined multi-generator which has a dual drive path with a shear section that immunizes one of the generators (e.g., the permanent magnet generator) within the single combined multi-generator from a failure of another generator (e.g., the main generator) within the single combined multi-generator.
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Citations
20 Claims
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1. An electrical generator, comprising:
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a first generator having a stator and a rotor; a second generator having a stator and a rotor; a drive gear that is connected to the rotor of the first generator to rotationally drive the rotor of the first generator; and a drive shaft that is connected to the drive gear to rotationally drive the rotor of the second generator, wherein a portion of the drive shaft has a shear section formed therein to break apart the drive shaft at the shear section when a predetermined load condition within the second generator occurs, wherein when the predetermined load condition causes the shear section to break apart the rotational driving of the rotor of the first generator by the drive gear continues. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electrical generator that connects to a gearbox and provides electrical power to various components on an aircraft, comprising:
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a housing; a first generator having a stator and a rotor; a second generator having a stator and a rotor; a third generator having a stator and a rotor; a drive gear that is connected to the rotor of the first generator to rotationally drive the rotor of the first generator; and a drive shaft that is connected to the drive gear to rotationally drive the rotor of the second generator and to rotationally drive the rotor of the third generator, wherein a portion of the drive shaft has a shear section formed therein to break apart the drive shaft at the shear section when a predetermined load condition within the second generator occurs, wherein when the predetermined load condition causes the shear section to break apart the rotational driving of the rotor of the first generator by the drive gear continues. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification