Centrifugal fluid powder clutch
US4154328A · kind A · utility
Inventor
Key dates
| Filing date | Feb 7, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Feb 7, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D37/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A centrifugal clutch for mechanical transmission which includes a two-part casing and an internal rotor with a pseudo-fluid, material between the casing and rotor, wherein a face of the rotor opposite a face of the casing has a succession of grooves or waves which are substantially sinu-soidally shaped in a peripheral direction, and wherein each internal face of the casing has a succession of concave pockets, which are substantially egg-shaped, as formed by an internal section of an egg-shell cut lengthwise through the egg, with the wider end of the egg cut off to a radius which will conform to the inside diameter of the casing, and with the narrower end of the egg cut off to a radius which will conform to the outside diameter of an internal boss within the casing. The two parts of the casing are joined together to form an annulus and the areas separating the pockets are chamfered adjacent the edges of the pockets and are flat or convex between the chamfered portions. The shape of the pockets enables the pseudo-fluid material to flow more readily from pocket-to-pocket and thereby to transfer heat from the material to the casing. To prevent racheting, there are an odd number of pock…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.