Invention Grant
- Patent Title: Aircraft electrically powered thrust reverser systems
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Application No.: US17242466Application Date: 2021-04-28
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Publication No.: US11591986B2Publication Date: 2023-02-28
- Inventor: Eric A. Polcuch
- Applicant: Parker-Hannifin Corporation
- Applicant Address: US OH Cleveland
- Assignee: Parker-Hannifin Corporation
- Current Assignee: Parker-Hannifin Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: F02K1/76
- IPC: F02K1/76 ; F16H1/22 ; F02C7/32 ; B64D29/06 ; F16D59/00 ; F16C1/02 ; F16H57/02 ; F16D125/36 ; F16D121/14

Abstract:
An actuation system includes a power drive unit that drives a plurality of drive shafts that each has a first end individually connected to the power drive unit. The power drive unit includes a geartrain including a plurality of individual gears that are offset relative to each other along the gearbox, and a motor-driven rotation of one of the plurality of individual gears drives rotation of the other individual gears, and each of the plurality of individual gears rotates to drive rotation of a respective one of the plurality of drive shafts. A plurality of torque brakes is mounted to the gearbox, the torque brakes being mechanically coupled to respective individual gears and drive shafts. When the torque being passed through is above a predetermined threshold value, a locking of one of the torque brakes stops rotation of all gears simultaneously to maintain positional symmetry in the actuation system.
Public/Granted literature
- US20210340934A1 AIRCRAFT ELECTRICALLY POWERED THRUST REVERSER SYSTEMS Public/Granted day:2021-11-04
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