Check valve and water injection systems and fuel systems utilizing the same
US4630642A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1984 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Dec 3, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88054
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
For use in a turbocharger system wherein exhaust flow from the engine is caused to rotate an impeller and charge the intake of the engine with compressed air, a water injection system comprising a water reservoir, a first line connecting the reservoir to the intake from a point above the liquid in the reservoir, a second line extending from below the level of liquid in the reservoir to the intake of the impeller and a check valve in the second line. The check valve includes a valve body having an inlet and an outlet, a seat separating the inlet and the outlet, a valve member, and a spring external of the valve member and of the flow of water through the inlet, outlet and seat yielding urging the valve member into engagement with the seat. The check valve may also be utilized in a fuel system wherein a fuel pump directs fuel to electronically controlled fuel nozzles. The check valve is placed in the line between the fuel pump and the fuel nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.