Temperature responsive flow control valve apparatus
US4783000A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Sep 17, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20177
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature responsive valve particularly adapted for use in a manual valve of a vehicular automatic transmission control is shown in which the temperature responsive valve has a generally cylindrical housing with a reduced diameter section and a cylindrical valve element rotatably received in the reduced diameter section. A thermostatic coil is coupled to the valve element to control the angular position of the valve element. Apertures are provided in both the housing and the valve element forming a variable orifice for pneumatic fluid which flows into an open end of the housing and out of a minimum fixed orifice in the reduced diameter section and, depending on the temperature, may also flow through the variable orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.