Control system for internal combustion engine and inert gas concentration detecting device for compressed natural gas
US9850867B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Jun 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a control system that includes a pressure accumulating portion that supplies CNG to a fuel injection valve and a regulator that adjusts a pressure in the pressure accumulating portion to a set pressure and of which a valve element opens when CNG is supplied to the pressure accumulating portion and closes when supply of CNG to the pressure accumulating portion is shut off, a control parameter relating to a combustion state in an internal combustion engine is controlled on the basis of a length of a period during which an opening degree of the valve element reduces from a first predetermined opening degree to a second predetermined opening degree when the pressure in the pressure accumulating portion is adjusted to the set pressure by the regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.