Two-cycle, opposed-piston internal combustion engine
US7549401B2 · kind B2 · utility
11Cited by
77References
54Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Jun 10, 2025 |
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.