Two-cycle, opposed-piston internal combustion engine
US8087389B2 · kind B2 · utility
6Cited by
27References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2009 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Jun 22, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H1/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a two-cycle, opposed-piston internal combustion engine, opposed pistons disposed in a cylinder are coupled to a pair of side-mounted crankshafts by connecting rods that are subject to substantially tensile forces acting between the pistons and the crankshafts. This geometry reduces or eliminates side forces between the pistons and the bore of the cylinder. The cylinder and the pistons are independently cooled to reduce cylindrical deformation caused by thermal expansion during engine operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.