초록 ▼

A rotary vane internal combustion engine wherein the section of the rotor housing where ignition takes place is formed in the shape of a circular arc matching the curvature of the rotor, with the balance of the housing periphery being composed of a series of tangent arcs to define an elliptical shap

A rotary vane internal combustion engine wherein the section of the rotor housing where ignition takes place is formed in the shape of a circular arc matching the curvature of the rotor, with the balance of the housing periphery being composed of a series of tangent arcs to define an elliptical shape that is continuously concave and has no drastic changes in curvature. The rotor and housing are "stretched" along their axial dimensions so that each combustion chamber has an axial measurement substantially greater than its circumferential measurement, and each segment of the rotor surface between adjacent vanes has formed therein a plurality of combustion chamber pockets spaced from one another along the axial dimension of the rotor and each provided with a spark plug. Circumferentially separated and separately throttled primary and secondary intake ports are provided to reduce intake throttle losses at low engine loads, and exhaust ports are provided which extend along the axial length of the rotor housing to avoid localized heating of the vane tips. The vanes are of a novel multi-layer construction with spring loaded seals alomg their lines of contact with the stationary engine parts, thereby minimizing intra-chamber pressure leakage.

대표청구항 ▼

[ I claim:] [1.] A rotary vane internal combustion engine wherein a cylindrical rotor having a plurality of radial guide slots slidingly retaining a plurality of vanes is rotatably mounted inside of a generally elliptical housing having intake means, ignition means, and exhaust means, characterized

[ I claim:] [1.] A rotary vane internal combustion engine wherein a cylindrical rotor having a plurality of radial guide slots slidingly retaining a plurality of vanes is rotatably mounted inside of a generally elliptical housing having intake means, ignition means, and exhaust means, characterized in that:the housing has an internal surface comprising a series of tangent arcs and at least one non-linear transition segment interposed between at least two of the tangent arcs, the at least one transition segment providing a more gradual change in radius of curvature between the at least two tangent arcs and the internal surface being concave at every point on the surface.