Method of operating an internal combustion engine arrangement
US8126636B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 2007 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jan 2, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An arrangement includes, but is not limited to an internal combustion engine, a pressure reducer that reduces gas pressure of gaseous fuel for the engine. The reducer connects on a high-pressure side to a gas tank and connects on the low-pressure side to a controllable gas injection valve regulating the gas flow. A high-pressure shutoff valve is on the high-pressure side and connected to the reducer to shut-off the gas flow from the gas tank. The high-pressure shutoff valve includes, but is not limited to a pilot valve with a small opening and a main valve with a large opening, and an electronic controller used at least for controlling the high-pressure valve and a gas injection valve. The pilot valve of the high-pressure valve opens in chronological order before the gas injection valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.