Rotary valve internal combustion engine
US11377982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Sep 4, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2250/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary valve internal combustion engine has a piston connected to a crankshaft, where the piston is reciprocatable in a cylinder, and a combustion chamber being defined in part by the piston. The engine has a rotary valve rotatable in a valve housing fixed relative to the cylinder, the rotary valve having a valve body containing a volume defining, in part, the combustion chamber and further having in a wall part thereof a port giving, during rotation of the valve, fluid communication successively to and from the combustion chamber via inlet and exhaust ports in the valve housing. The valve body has a non-uniform radial profile along its axial length and/or about its axis of rotation to accommodate changes in the profile of the valve body during operation to maintain a substantially constant clearance between the valve body and the housing throughout the length of the valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.