Electrically rotatable shaft
US6615777B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Apr 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18576
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention concerns an electrically rotatable shaft, and more particularly, an adjusting shaft (1) of a fully variable mechanical valve train of an internal combustion engine, said shaft comprising an adjusting cam (2). The rapid and exact rotation of the adjusting shaft (1) that is required for the fully variable valve train is achieved by the fact that the valve train comprises an actuator (3) that comprises an adjusting lever (4) connected rotationally fast to the adjusting shaft (1), and the free end of the adjusting lever is articulated through a forked lever (5) on a screw nut ((8) of a screw-and-nut drive (6) that is driven by an electromotor (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.