Application of face gears to helicopter transmissions

Details Application of face gears to helicopter transmissions Application of face gears to helicopter transmissions

1994-09-14

1996-11-12

Marmor, Charles A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74661, 74665L, 416169R, F16H 3706

Patent

active

055729100

ABSTRACT:
A helicopter transmission presenting at least a first reduction unit receiving motion from a respective engine on the helicopter; and a second reduction unit connected to the first reduction unit and transmitting motion to the shaft of the main rotor; both reduction units presenting one reduction stage, and each including a pair of face gears coaxial with and facing each other and only one of which is fitted to the output shaft of the respective reduction unit; and two pinions of which one is a floating input pinion and the other is a fixed-axis pinion, and each of which meshes with both the face gears.

REFERENCES:
patent: 2351219 (1944-06-01), McMullen
patent: 2461348 (1949-02-01), Pentecost
patent: 2702100 (1955-02-01), Montieth
patent: 4983153 (1991-01-01), Luijten
patent: 5178028 (1993-01-01), Bossler, Jr.
patent: 5233886 (1995-08-01), Bossler, Jr.

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