Clutch drum for automatic automotive transmission
US4440282A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1981 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Oct 28, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H3/663
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clutch drum for an automatic transmission features a large diameter portion in which a plurality of first slots define castle-like projections about one end thereon and a second set of slots which originate in the projections near the tops thereof and which extend to and terminate in an essentially frusto-conical portion which interconnects the large diameter portion and a small diameter portion containing a piston therein. The first slots serve to mount clutch discs within the drum while the second slots mount discs about the drum. The relatively wide castle-like projections allow the production of the drum from relatively light gauge sheet metal, which has adequate structural rigidity and a reduced maximum diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.