Diesel engine emergency shutoff device and method
US5873343A · kind A · utility
Inventor
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/0065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improvement for diesel engine emergency shutoff devices and method for intake air-flow shutoff valves. The device includes tubing connecting the engine's exhaust manifold with the intake manifold at a location down stream from the shutoff valve with a check valve which prevents exhaust gas from entering the intake manifold until vacuum within the intake manifold reaches a desired level. When the emergency shutoff device operates, intake manifold vacuum opens the check valve and allows oxygen deficient exhaust gas to enter the intake manifold preventing a sudden damaging vacuum while also allowing the shutoff device to completely shutdown the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.