Pilot boss for a torque converter cover and method of forming the same
View Patent ↗A torque converter cover including a protrusion extending from an outer surface of the torque converter cover and symmetrical about an axis of rotation for the cover and a pilot boss including a body having a recessed portion matingly engaged with the protrusion. In some embodiments, the protrusion is generally cylindrical, while in other embodiments, the recessed portion is generally cylindrical. A method of fixedly securing a pilot boss to a torque converter cover, the torque converter cover including a protrusion from an outer surface of the cover and symmetrical about an axis of rotation for the cover and a pilot boss including a body having a recessed portion, the method including the step of matingly engaging said recessed portion to the protrusion.
1. A torque converter cover comprising:
a generally cylindrical protrusion extending from an outer surface of said torque converter cover and symmetrical about an axis of rotation for said cover; and, a pilot boss comprising a generally cylindrical body having a generally cylindrical recessed portion matingly engaged with said protrusion, wherein said protrusion comprises a first diameter and said recessed portion comprises a second diameter, said first diameter is greater than said second diameter.
2. The torque converter cover of claim 1 wherein said pilot boss is matingly engaged with said protrusion by a compressive force.
3. The torque converter cover of claim 1 wherein said recessed portion further comprises at least one circumferential undercut.
4. The torque converter cover of claim 3 wherein said recessed portion comprises an opening, said at least one circumferential undercut continuous with said opening.
5. The torque converter cover of claim 3 wherein said recessed portion comprises a terminal end, said at least one circumferential undercut continuous with said terminal end.
6. The torque converter cover of claim 3 wherein said recessed portion comprises an opening and a terminal end, said at least one circumferential undercut located between said opening and said terminal end.
7. The torque converter cover of claim 1 wherein said protrusion comprises a height and said recessed portion comprises a depth, said height is greater than said depth.
8. The torque converter cover of claim 1 wherein said protrusion comprises a height and said recessed portion comprises a depth, said height is less than said depth.
9. A torque converter cover comprising:
a generally cylindrical protrusion extending from an outer surface of said torque converter cover and symmetrical about an axis of rotation for said cover; and,
a pilot boss comprising a generally cylindrical body having a generally cylindrical recessed portion comprising at least one circumferential undercut, said pilot boss matingly engaged with said protrusion.
10. A torque converter cover comprising:
a protrusion extending from an outer surface of said torque converter cover and symmetrical about an axis of rotation for said cover; and,
a pilot boss comprising a body having a recessed portion matingly engaged with said protrusion, wherein said protrusion is a frustum.
11. A torque converter cover for a torque converter containing a fluid comprising:
a first through hole arranged symmetrically about a first axis of rotation of said cover;
a pilot comprising an outer wall and a terminal end, said terminal end comprising a second through hole arranged symmetrically about a second axis of rotation of said pilot; and,
a fastener disposed within said first and second through holes operatively arranged to fixedly secure said pilot to said cover.
12. The torque converter cover of claim 11 , wherein said pilot is generally cylindrical or generally frustoconical.
13. The torque converter cover of claim 11 , wherein said fastener is a rivet.
14. The torque converter cover of claim 11 , wherein said fastener is a bolt.
15. The torque converter cover of claim 11 further comprising at least one sealing means arranged to prevent egress of said fluid through said first or second through hole.