Patent ID: 6189655
Filing Date: 2001-02-20
Classification: F16H,Y10T

Abstract:
A transmission having an integral lubrication system for delivering lubrication fluid comprising:a housing having a sump portion for holding the fluid, said housing having a first portion with first and second surfaces in spaced relation;a pump assembly having inlet and outlet chambers wherein said pump assembly moves the fluid from said inlet chamber to said outlet chamber;a collection system having an inlet passageway interconnecting said inlet chamber and said sump to provide fluid communication therebetween;a distribution system having a plurality of fluid distribution ports for delivering the fluid to a plurality of transmission components within said housing, said distribution system interconnecting said distribution ports and said outlet chamber to provide fluid communication therebetween, said distribution system having a first passageway with at least a portion interposed between said first and second surfaces;at least one shaft supported by said housing, said at least one shaft collectively having a plurality of gears that cooperate to achieve a desired gear ratio, wherein said housing further includes a second portion having third and fourth surfaces in spaced relation, said distribution system having a second passageway interposed between said third and fourth surfaces, said second passageway having at least one of said distribution ports proximate to said plurality of gears for delivering the fluid to said plurality of gears;at least one shaft has a bearing portion, wherein said housing further includes a third portion having fifth and sixth surfaces in spaced relation with at least one bore therethrough supporting said bearing portion, said distribution system having a third passageway interposed between said fifth and sixth surfaces, said third passageway having at least one of said distribution ports intersecting said at least one bore for delivering the fluid to said hearing portion; andsaid collection system further includes a return passageway interposed between said fifth and sixth surfaces, said return passageway intersecting said at least one bore and interconnecting said at least one bore and said sump to provide fluid communication therebetween for returning the fluid from said bearing portion to said sump.