Opposed piston engine with reserve power capacity
US6318309A · kind A · utility
22Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B75/28
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Two pistons are reciprocatively disposed in each cylinder of an engine thereby forming combustion chambers at each end of the cylinder that operate in a four-stroke cycle, and a third combustion chamber formed between the pistons that selectively operates in a two-stroke mode. The combustion chambers at the ends of the cylinders have heads in which intake and exhaust valves are disposed, and the third chamber between the pair of pistons is ported to provide scavenged flow. The third chamber is not fueled and remains inactive except when maximum power is needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.