Temperature-responsive cooling system
US5117898A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1991 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Sep 16, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling system is disclosed in which a radiator (21) includes a coolant outflow tank (29) having separate compartments (39,41L,41R) in series with core portions (35,37L,37R) of the radiator. A temperature-responsive fan clutch (13) is adjacent the center core portion (35) and flow through that core portion is controlled by a thermostatic valve (49) which is operated between open (FIG. 3) and closed (FIG. 4) positions in response to the temperature of coolant flowing through one of the other (37L) core portions. With the thermostatic valve closed, and no flow through the center core portion, the temperature of air passing therethrough does not rise as it normally would with the vehicle stopped. Therefor, the fan clutch remains in the disengaged condition at a time when operation in the engaged condition would be both unnecessary and somewhat objectionable to the vehicle operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.