| 摘要 |
A rotary valve internal combustion engine has a piston connected to a crankshaft and reciprocatable in a cylinder, 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 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, wherein the rotary valve is rotatable about an axis parallel to the axis of rotation of the crankshaft, the valve being mounted in a bearing arrangement which restrains the valve from movement in the axial direction but permits movement in the radial direction. |
| 主权项 |
1. A rotary valve internal combustion engine having a piston connected to a crankshaft and reciprocatable in a cylinder, a combustion chamber being defined in part by the piston, and 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, wherein the rotary valve is rotatable about an axis parallel to the axis of rotation of the crankshaft, in which the volume in the rotary valve body leads to a passageway, the passageway directing the flow of combustion gases between the volume in the valve and the cylinder, the passageway also defining, in part, the combustion chamber, the passageway being a substantially wedge-shaped volume inclined relative to the axis of the valve towards the cylinder at an angle of between 30 and 60 degrees from the axis of rotation of the valve, wherein the part of the valve body containing the volume defining part of the combustion chamber lies at least partially radially inwardly of the circumference of the cylinder to overlie the piston. |
