Bearing lubrication system for extension housing of vehicular transmission

Patent · Tue Nov 11 04:00:00 EST 1986

OSTI ID:7068573

Tsukamoto, K; Taniguchi, T; Kubo, S; Taga, Y

A bearing lubrication system is described for bearing means supported with an extension housing of an automatic transmission. The extension housing is connected at one end face flush to an end face of a transmission case. The transmission has a hydraulic control system including a valve casing fastened to the transmission case and a transmission output shaft supported in the extension housing. The extension housing has a sleeve yoke splined to the output shaft and fitted within the bearing means supported by the extension housing. The hydraulic control system includes a first passage formed in the transmission case for supply of hydraulic operating fluid under pressure from the valve means. The lubrication system is provided with a forced feed lubrication means comprising: second passage means, branched off from the first passage, for supplying hydraulic operating fluid to the bearing means thereby lubricating the bearing means. The second passage means includes a first passage portion running through the transmission case and terminating at the end face of the transmission case and a second passage portion running between a first terminus at the one end face and a second terminus discharging the fluid for lubrication of the bearing means; sealing means for connecting the first and second passage portions at the juncture of the end faces; throttle means, disposed within the second passage means, for limiting the flow of fluid therethrough; and fluid collecting means for establishing a pool of the fluid in contact with the bearing beneath the output shaft. The fluid collecting means comprises a weir and a trough formed in the extension housing and running between the weir and the bearing means.

• Assignee: Aisin-Warner, Ltd., Anjo
• Patent Number(s): US 4621710
• OSTI ID: 7068573
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
BEARINGS
CONTROL EQUIPMENT
COVERINGS
EQUIPMENT
FLOW REGULATORS
FLUIDS
HYDRAULIC CONTROL DEVICES
HYDRAULIC FLUIDS
LUBRICATION
MACHINE PARTS
MECHANICAL STRUCTURES
MECHANICAL TRANSMISSIONS
PRESSURIZING
SHAFTS
SUPPORTS
VALVES
VEHICLES
WORKING FLUIDS