Internal combustion engine apparatus
US4630590A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1985 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Jun 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine apparatus including an internal combustion engine having an ignition system and a centrifugal clutch. The ignition system is capable of being in delayed ignition timing in a range of low engine speeds and being in advanced ignition timing in a range of high engine speeds while quickly changing ignition timing stepwise when the engine speed is at a predetermined level between the low and high engine speed ranges, and the centrifugal clutch is switched between a condition of engagement and a condition of disengagement at an engine speed in the vicinity of the predetermined engine speed. The apparatus retains the advantages of an internal combustion engine having a centrifugal clutch and allows a machine for which the apparatus is used to make effective use of engine output power. The apparatus has improved engine startup characteristic and increased engine stability and is free from engine stall when the centrifugal clutch is not fully engaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.