Supplementary fuel system for enhancing low temperature engine operation
US4441475A · kind A · utility
2Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1982 |
| Grant date | Apr 10, 1984 |
| Priority date | — |
| Expiry date | Jul 9, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M1/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A supplementary fuel system adds propane to the induction passage of an ethanol fueled engine to start and sustain operation of the engine at low temperatures. The propane flow is cycled on and off during cranking of the engine and the propane delivery pressure is varied with induction passage pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.