Starting device for an internal combustion engine
US9797359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2013 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Nov 18, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N15/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a starting device (10) for an internal combustion engine, the starting device (10) comprising a hub (12; 70) configured to drivingly engage an internal combustion engine when the hub (12; 70) is rotated in a first direction (A); a pulley (14; 47; 60) interconnected with the hub (12; 70) by a spring (23; 41); a shaft (21) on which the pulley (14; 47; 60) and hub (12; 70) are mounted independently rotatable; a flexible member (16) attached to and coiled about the pulley (14; 47; 60); and where the spring (23; 41) coupled at a first end (26; 53) to the hub (12; 70) and at a second end (28; 54) to the pulley (14; 47; 60). The pulley (14; 47; 60) comprises a recess (15) arranged to receive the flexible member (16), which recess has the shape of a conical helix having a first end (15A) with a first diameter and a second end (15B) with a second diameter, larger than the first diameter; and is attached to the pulley (14; 47; 60) at the second end (15B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.