Fluid reaction surfaces (i.e. – impellers) – Having clutch or brake means
Patent
1997-06-17
1999-01-05
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Having clutch or brake means
416152, 416 32, 188 732, B64C 1100
Patent
active
058554718
ABSTRACT:
A helicopter rotor brake assembly for arresting rotational movement of a main rotor drive shaft, wherein the helicopter rotor brake assembly is mechanically interconnected with the main rotor drive shaft through a main transmission. The helicopter rotor brake assembly includes a brake disc rotatably mounted about an axis, wherein the brake disc is mechanically interconnected with the main transmission, and wherein the brake disc defines a plane substantially perpendicular to the axis. A bracket is provided for disposal in combination with the brake disc, and comprises a beam member defining a first end and a second end, a first arcuate member connected to the first end of the beam member and disposed substantially co-planar with the plane defined by the brake disc, and a second arcuate member connected to the second end of the beam member and disposed substantially co-planar with the plane defined by the brake disc. A first caliper subassembly is provided for connection to the first arcuate member, and a second caliper subassembly is provided for connection to the second arcuate member, wherein the first caliper subassembly and the second caliper subassembly are operable, in combination, to apply braking forces to the brake disc, and thereby ensuring an arrestation of rotational movement of the main rotor drive shaft.
REFERENCES:
patent: 2600715 (1952-06-01), Wheeler
patent: 2988176 (1961-06-01), Bois
patent: 3129608 (1964-04-01), Watson
patent: 3612444 (1971-10-01), Girard
patent: 5529459 (1996-06-01), Pancotti
Look Edward K.
Sikorsky Aircraft Corporation
Solomon Adam C.
Woo Richard
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