Valve member of temperature sensitive fluid fan coupling
US4846331A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Mar 22, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D35/026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve member of a temperature sensitive fluid fan coupling for an engine cooling fan is formed from a plate material having a weight provided at its free end. The modulus of section of the longitudinally central portion of the plate material is reduced to impart flexibility thereto so that it is flexible in the direction of rotation. Accordingly, it is possible to enhance the effect of the action of the weight which causes the valve member to be displaced so as to cancel the pivotal displacement of the valve member caused by the displacement of a bimetal. Thus, it is possible to eliminate the discontinuity in the temperature sensitivity of the speed of rotation of the fan and hence lower the noise level, reduce the fuel consumption and minimize the change in temperature of cooling water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.