Multicylinder four-stroke internal combustion engine
US6155228A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Aug 10, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a multicylinder four-stroke internal combustion engine having a cylinder head (1) with an intake and an outlet port arrangement for two admission valves (15, 16, 17, 18) and two exhaust valves (26, 27) per cylinder. The admission valves (15, 16, 17, 18) are fitted on opposite-lying longitudinal sides of the engine and the exhaust valves (26, 27) on respective opposite side walls in relation to the crankshaft axis. One swirl duct (11, 12) and one filling duct (13, 14) leading to the admission valves (15, 16, 17, 18) are provided per cylinder (7, 8). In order to facilitate regulation of the distribution mechanism of the gas exchange valves, the exhaust ducts (29, 30) discharge directly into a flange surface (5) on a longitudinal side (6) of the engine; the intake ports (6) have sectional ducts (11, 12, 13, 14) and a main duct (10), whereby the main duct (10) discharges onto the longitudinal side of the internal combustion engine and the sectional ducts (11, 12, 13, 14) lead from the main duct (19) to the admission valves (15, 16, 17, 18) of adjoining cylinders (7, 8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.