Device for controlling the flow of intake and exhaust gases in an internal combustion engine
US5546898A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a device for controlling the flow of intake and exhaust gases in an internal combustion engine, which comprises a cylinder head with a plurality of cylinders each forming combustion chamber for burning air/fuel mixture to produce a mechanical energy, the combustion chamber having an intake valve for receiving an air/fuel mixture and an exhaust valve for exhausting burnt gases, a blocking means for isolating the side of the intake valve from the side of the exhaust valve so as to prevent a fresh air/fuel mixture and the burnt gases from interfering with each other in the overlap interval between the final stage of the exhaust stroke and the beginning stage of the intake stroke during which the intake and exhaust valves simultaneously maintain the opening state, and a cam shaft for driving the intake and exhaust valves and the blocking means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.