Internal combustion engine low temperature starting system
US5570667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Mar 27, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compression ignited, spark ignited, or surface ignited engine single or multi-cylinder low temperature starting system is positioned permanently or temporarily in the intake system during the engine starting and warming-up period for an extremely cold temperature engine condition. The low temperature starting system for these engine types is capable of starting on a wide variety of liquid fuels, E.G., high or low fuel volatility, high or low fuel boiling range and gaseous fuels. A pre-heat device which is fuel fired, electrically heated, chemically heated, heated by thermal storage or other means is used to pre-heat the air or air-fuel mixture. In any one of four different configurational modes, after an initial pre-heat period, air or an air-fuel mixture is drawn through a heat exchanger with an inlet restriction that acts to increase the air residency time in the heat exchanger which increases the temperature of the inducted air that in-turn reduces the opportunity for cold air to reach the combustion chamber and yields a rich air-fuel mixture in the combustion chamber. The heated rich air-fuel mixture in the combustion chamber is further heated by compression during the compre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.