Fuel gas supply system of gas engine
US9234485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Sep 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a fuel gas supply system of a gas engine capable of supplying to a fuel gas supply unit a fuel gas of constant pressure which fluctuates little. In a fuel gas supply system, a high-pressure tank and a gas injector are connected to each other by a supply passage, and an electromagnetic pressure regulating valve is provided on the supply passage. The electromagnetic pressure regulating valve is configured to regulate the pressure of the gas, flowing through the supply passage, to pressure corresponding to a current supplied to the electromagnetic pressure regulating valve. The gas pressure downstream of the electromagnetic pressure regulating valve is detected by a low-pressure-side pressure sensor. A controller is electrically connected to the electromagnetic pressure regulating valve. The controller controls the current supplied to the electromagnetic pressure regulating valve such that pressure detected by the low-pressure-side pressure sensor becomes predetermined target pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.