Engine expansion braking with adjustable valve timing
US7530343B2 · kind B2 · utility
3Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Apr 18, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2009/2169
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling operation of cylinder with at least an intake and exhaust valve and a piston are described. In one aspect, the method comprises maintaining at least one of the intake and exhaust valves in a closed position during a period. Further, closing the other of the intake and exhaust valves with the piston at a first position from, and then opening the other of the intake and exhaust valves at a second position of the piston closer to bottom center than said first position, during said period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.