Engine start device for manual work machine, having small-sized electric motor, and manual work machine having the start device mounted thereon
US7849831B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2006 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Feb 1, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2400/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a start device for a small-sized engine, which is capable of starting the small-sized engine in an appropriate starting time and is ultimately reduced in size and weight by a rational design. A plurality of secondary batteries is used as a power source required to drive a small-sized electric motor and a small-sized engine, and has a considerably large capacity and an extremely small size. A speed reduction mechanism that has a reduction ratio of 1/30 to 1/90 is disposed between the electric motor and a buffer/power storage section. The start device starts the engine in an extremely short time of 0.4 to 1.3 seconds. Within this range of staring time of the engine, an operator has no uncomfortable feelings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.