Locking mechanism for the crankshaft of an internal combustion engine
US7410445B2 · kind B2 · utility
5Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2003 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | May 29, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2019/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A locking mechanism (6) is provided to block the internal combustion engine (1) at prepositioned cranking angle after shutting down. Preferably, the crankshaft of the engine is positioned at a crankshaft angle that is favorable for cranking. Prepositioning of the crankshaft angle results in a lower first compression torque and therefore increases kinetic energy stored in the crankshaft lumped inertia. The required maximum torque of the cranking aid (2a, 2b, 2c) can therefore be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.