Power take-off drive unit

Details Power take-off drive unit Power take-off drive unit

1987-09-16

1989-03-14

Herrmann, Allan D.

Machine element or mechanism

Power take-off

From shaft extension

74 156, 74397, 180 537, 192 15, 192 7012, 192 85AA, 192113B, B60K 1728, B60K 2502, F16D 6704

Patent

active

048116149

ABSTRACT:
A power take-off drive unit for use at the front of a tractor, in which a housing supports input and output shafts for rotation with the input shaft above the output shaft and a gear train connecting the two shafts. An oil-cooled clutch is provided within the housing which is mounted concentrically with the higher input shaft. Coolant oil is supplied to cool the clutch and a scavenging pump is driven from the input shaft for scavenging coolant oil from within the housing to ensure an oil level within the housing below the clutch to minimize the power losses due to churning of the clutch within the coolant oil while still immersing at least part of the gear train. A bearing support for a pivot of a front axle of the tractor is also carried by the housing.

REFERENCES:
patent: 936284 (1909-10-01), Abernethy
patent: 2614396 (1952-10-01), Ratermann
patent: 3001409 (1961-09-01), Von Fumetti
patent: 3669229 (1972-06-01), Ronayne et al.
patent: 4060159 (1977-11-01), Chaney et al.
patent: 4183425 (1980-01-01), Sommer
patent: 4403671 (1983-09-01), Schmahl
patent: 4488447 (1984-12-01), Gebhardt
patent: 4739865 (1988-04-01), Yater et al.

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