Lubrication control device
AssigneeGeneral Motors Corporation
InventorScott Henry Wittkopp
Life of this patent
Estimating the term…
Loading patent…
AssigneeGeneral Motors Corporation
InventorScott Henry Wittkopp
Estimating the term…
An automatic transmission is comprised of a housing and a hub rotatable about a shaft at differing speeds and having an axial assembly gap therebetween. The axial assembly gap defines an annular flow path in fluid communication with a source lubrication path and a lubrication-requiring mechanism. A lubrication control device is disposed in the annular flow path. The device includes a washer in constant contact with the housing and having a radial slot to permit a prescribed flow of lubricant through the annular flow path to the lubrication-requiring mechanism. The device further includes a belleville spring wherein a small diameter end is in contact with the hub and a large diameter end is piloted by a seating on the washer, wherein the belleville spring provides spring adjustability to accommodate the variable axial assembly gap.
An automatic transmission, comprising:
An automatic transmission, comprising:
A lubrication control device for controlling lubrication flow between a housing and a hub in an automatic transmission, comprising:
Dependencies are inferred from the claim text.