Engine exhaust brake having a single valve actuation
US6234143A · kind A · utility
23Cited by
43References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jul 19, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D13/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine exhaust braking method and apparatus is provided according to the invention. The engine exhaust braking method includes the steps of actuating an exhaust valve during an intake stroke of the engine, holding the exhaust valve open during a first portion of a compression stroke of the engine, and closing the exhaust valve when a corresponding piston of the engine is more than one-half way through a compression stroke, wherein a cylinder corresponding to the exhaust valve is precharged by higher pressure air from the exhaust manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.