Pressure controlled engine cooling system
US4140089A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1976 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Feb 19, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7836
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a pressure valve for use in any one of several cooling systems for different internal combustion engines also disclosed herein. The pressure valve is connected in series with a source of coolant and an engine coolant jacket for affording coolant flow from the source through the coolant jacket when the pressure in the coolant is above a first value and for affording continued coolant flow through the coolant jacket until the pressure in the coolant falls below a second value lower than the first value. The pressure valve comprises wall means defining a chamber having an inlet and an outlet including a valve seat, together with a valve member having a first surface movable relative to a closed position wherein the first surface sealingly engages the valve seat, which valve member also has a second surface facing away from the first surface. Means biasing the valve member toward the closed position are provided, together with a diaphragm having a portion connected to the valve member for proportionately related movement in common with the valve member, the diaphragm having a side surface positioned in spaced relation with respect to the second surface of the valve …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.