Variable valve mechanism
US7207300B2 · kind B2 · utility
7Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2004 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Dec 14, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2305/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Intake camshafts 10, 14 for driving valve bodies 32 (intake valve) are positioned in right- and left-hand banks, respectively. A variable valve mechanism 30 is positioned in each of the right- and left-hand banks in such a manner as to form mirror-image symmetry. The variable valve mechanism 30 includes a control shaft 60 for controlling the operating angle of the valve body. The respective control shafts in the right- and left-hand banks are controlled in symmetrical directions. The right- and left-hand intake camshafts 10, 14 rotate in opposite directions and at a speed that is synchronized with the speed of a crankshaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.