Lubrication in power transmission unit

Details Lubrication in power transmission unit Lubrication in power transmission unit

1978-08-22

1981-01-06

Kannan, Philip C.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74467, 74606R, 184 612, F16H 3708

Patent

active

042429234

ABSTRACT:
A power transmission unit comprises a change-speed gearing having a mainshaft with change-speed gears and a countershaft with counter gears for selectively driving the respective change-speed gears, and a drive pinion shaft coaxially connected to the mainshaft and having a drive pinion driving a crown wheel, the drive pinion shaft being supported by a pair of axially spaced bearings carried on an upright partition wall in a trans-axle casing. In the power transmission unit, a stirring member is mounted on one of the mainshaft and countershaft to dip up lubrication oil in a rear chamber behind the partition wall, an oil receiver is secured to the rear-face of the partition wall to receive the lubrication oil dipped up by rotation of the stirring member, an axial cavity is provided on the partition wall adjacent the drive pinion shaft to receive the lubrication oil from the oil receiver, and a lateral passage is provided through the partition wall to communicate the cavity into an annular space around the drive pinion shaft between the bearings.

REFERENCES:
patent: 2805743 (1957-09-01), Keese
patent: 3115047 (1963-12-01), Lunn et al.

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