Control and pressure release valve
US7556559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jan 6, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7891
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A control and pressure relief valve for relieving pressure from an automotive vehicle interior to an atmospheric pressure outside the vehicle interior in accordance with the present invention includes a valve mounting location having an inlet in fluid communication with the vehicle interior and an outlet selectively in fluid communication with the atmospheric pressure. At least one relief valve mounted on the valve mounting location allows air to flow from the vehicle interior to atmospheric pressure when the air pressure in the vehicle interior exceeds a first predetermined pressure value that is greater than the atmospheric pressure. At least one control valve mounted on the valve mounting location allows air to flow from the vehicle interior to the atmospheric pressure when an air pressure in the vehicle interior exceeds a second predetermined pressure value that is greater than the atmospheric pressure and less than the first predetermined pressure value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.