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An automatic transmission has a rotational shaft with an axial through-hole. The shaft is supported by a case through bearings at opposite ends thereof. In the hole, a cup-type plug with holes is engaged with the shaft at one end thereof. A lubricating means is disposed in the case facing the holes

An automatic transmission has a rotational shaft with an axial through-hole. The shaft is supported by a case through bearings at opposite ends thereof. In the hole, a cup-type plug with holes is engaged with the shaft at one end thereof. A lubricating means is disposed in the case facing the holes for distributing a lubricating hydraulic fluid to bearings disposed at each end of the shaft.

대표청구항 ▼

A lubricating system for bearings rotatably supporting a hollow shaft in an automotive automatic transmission wherein first and second bearing means are located at opposite ends of the hollow shaft, said lubricating system comprising: a spray nozzle for spraying a lubricating fluid in an axial direc

A lubricating system for bearings rotatably supporting a hollow shaft in an automotive automatic transmission wherein first and second bearing means are located at opposite ends of the hollow shaft, said lubricating system comprising: a spray nozzle for spraying a lubricating fluid in an axial direction, into a first end of said shaft through the hollow interior of said shaft, whereby the lubricant exits a second end of the hollow shaft opposite said spray means for lubricating said second bearing means; closure means, covering said first end of said hollow shaft and intercepting a first portion of the sprayed lubricating fluid, whereby said first bearing means is lubricated by said first portion of lubricating fluid, said closure means having a plurality of apertures for allowing a second portion of the sprayed lubricating fluid to pass therethrough in a direction axially of the hollow shaft and to exit said second end of said hollow shaft for lubrication of said second bearing means.