Lubrication – Systems – Gearing
Patent
1989-12-01
1991-07-16
Lazarus, Ira S.
Lubrication
Systems
Gearing
184 64, 184 272, 475159, F01M 102
Patent
active
050317253
ABSTRACT:
In order to provide lubrication of the bearings (16) and clutch (22) of an output shaft (14), even when the output shaft (14) is driven externally, a gear box (10) has a primary lubrication system (24) for circulating a lubricant (26) from a sump (28) into a lubricating flow path (30). The lubricating flow path (30) extends into and through a cavity (20) containing the bearings (16) and clutch (22) which support the output shaft (14) which is selectively operably interconnectable with a rotary input (12) and the primary lubrication system (24) is operable only with the rotary input (12). In addition to the primary lubrication system (24) for circulating the lubricant (26) from the sump (28) into the lubricating flow path (30), and to ensure lubrication whenever the output shaft (14) rotates, the output shaft (14) includes a pump (32) at one end of the lubricating flow path (30 ) to draw lubricant (26) from the sump (28) to lubricate the bearings (16) and clutch (22) and the pump (32) is adapted to return the lubricant (26) to the sump (28).
REFERENCES:
patent: 2012579 (1935-08-01), Obayashi
patent: 3441106 (1969-04-01), Taylor
patent: 3637049 (1972-01-01), Butterfield et al.
patent: 3810528 (1974-05-01), Morley
patent: 4431372 (1984-02-01), Dadhich
patent: 4838764 (1989-06-01), Murota
patent: 4841803 (1989-06-01), Hamano
patent: 4848177 (1989-07-01), Miura
Cariaso A.
Lazarus Ira S.
Sundstrand Corporation
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