Selectable one-way clutch with breakaway feature
US8449423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Sep 15, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/004
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A selectable overrunning clutch and breakaway, i.e., energy absorbing, cone clutch is disposed in series between two elements of a planetary gear automatic transmission. An annular piston is received within a complementary cylinder and includes a male cone clutch member that mates with a stationary female cone clutch member. Also carried by the annular piston is an annular drive ring which engages a planetary gear assembly element such as a ring gear. Disposed between the drive ring and the piston is a selection ring having a plurality of circumferential apertures or ports that receive a like plurality of struts. The face of the annular piston includes pockets or recesses that receive the struts and the face of the drive ring includes notches or surfaces against which the struts engage. Tangentially disposed in the annular piston is a small selection piston which rotates the selection ring between two positions to either allow overrunning in one direction between the annular piston and the annular drive ring or lock the two components together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.