Internal combustion engine with fuel injectors and heaters
US5048500A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Aug 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine of the injector type has self-regulating electrical resistance heating devices of positive temperature coefficient of resistivity arranged in cylinder head air-fuel inlet channels to intercept fuel directed into the channels by fuel injectors for heating and deflecting the fuel into respective cylinder intake valve openings. The heating devices and/or fuel injectors are movable after engine warm-up so that the fuel injectors thereafter spray fuel directly onto warmed-up intake valves in the valve openings without being intercepted by the heaters, whereby the heaters are adapted to be deenergized after engine warm-up without creating a cold spot in the engine fuel supply system at the heater location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.