About 257 results
Showing the first 200 results.
https://drivepatents.com/patents/988287 · 24 Jul 2013
An integrated thrust reverser and variable area fan nozzle actuator (100) includes a ballscrew shaft (120) having a first ballnut (122) and a second ballnut (130). The second ballnut (130) is fastened to a first translatable object. A bearing (134) is affi...
https://drivepatents.com/patents/988658 · 17 Jul 2013
A method for recovering air in an aircraft includes bleeding bypass air (122;196) from an engine bypass (76;152), bleeding core air (120;194) from an engine core (74;150), and placing the bypass air and the core air in a heat exchange relationship to produ...
https://drivepatents.com/patents/988602 · 17 Jul 2013
An arrangement, 50, and method for driving a turbomachine having a rotor is provided. The arrangement includes an input shaft, 48, rotationally coupled to the rotor. A motor generator device, 54, has a motor mode of operation and a generator mode of operat...
https://drivepatents.com/patents/988891 · 10 Jul 2013
A turbomachine (10) comprises a turbine shaft (42), first (36) and second (40) rotors, first (12) and second (14) propulsion stages, and a magnetic stator (38). The first rotor (36) is rotationally coupled to the turbine shaft (42), and coaxially arranged ...
https://drivepatents.com/patents/989773 · 12 Jun 2013
A cranking pad assembly for a gearbox (14) of a turbomachine (10) including a cranking pad shaft (22) rotatably secured in a gearbox housing (18) and engageable with a gearbox drivetrain (50) when urged inwardly into the gearbox housing. The cranking pad s...
https://drivepatents.com/patents/984866 · 5 Jun 2013
A method of operating an electronic engine control to compensate for speed changes. The method includes receiving (110) a fuel flow request, sensing (130) actual engine rotor speed, calculating (140) a fuel flow correction factor, establishing (150) a fina...
https://drivepatents.com/patents/984837 · 5 Jun 2013
A multi-phase power control switch (10,100,200) has multiple power controller channels (12a-c,112a-c,212a-c) each of which includes at least one power controller (14,114,214a-c) having a microprocessor (20,120,122,220). Each of the microprocessors cross co...
https://drivepatents.com/patents/990492 · 22 May 2013
A permanent magnet generator system (10; 30) provides protection from fault conditions. The system includes a permanent magnet generator (12; 32) having a first, second, and third winding (L1, L2, L3) wherein each winding has a first end (a, b, c) and a se...
https://drivepatents.com/patents/990476 · 22 May 2013
A DC power distribution system and method includes a solid state remote power controller that connects a switching power source to a DC bus when the DC bus is switching power sources thereby providing a nearly uninterrupted power supply to the DC bus.
https://drivepatents.com/patents/990472 · 22 May 2013
A permanent magnet alternator (42) includes a permanent magnet alternator stator (78) attached to a housing (64). A shaft (46) is rotatable with respect to the housing with a permanent magnet alternator rotor (76) attached to the shaft. The permanent magne...