Port for rotary internal combustion engine

摘要

A Wankel engine with a peripheral wall of the stator body including a non-circular opening formed therethrough and defining at least part of a port. The opening has a perimeter defined by a first edge and remaining edges, with the remaining edges being located downstream of the first edge with respect to a direction of rotation of the rotor. The remaining edges extend non parallel to a longitudinal axis of the apex seals.

主权项

1. A rotary engine comprising:
a stator body having an internal cavity defined by two axially spaced apart end walls and a peripheral wall extending between the end walls, the cavity having an epitrochoid shape defining two lobes; a rotor body having three circumferentially spaced apex portions, the rotor body being engaged to an eccentric portion of a shaft to rotate and perform orbital revolutions within the cavity with each of the apex portions remaining in sealing engagement with the peripheral wall through at least one apex seal and separating three rotating chambers of variable volume defined in the cavity around the rotor body; the peripheral wall including a first, second and third non-circular openings formed through the peripheral wall and together defining at least part of a port, the port having a first bridging element separating the first and second openings and a second bridging element separating the first and third openings, the bridging elements having an inner surface aligned with an inner surface of the peripheral wall, the first opening having a triangular perimeter defined by a first edge and two remaining edges with the remaining edges each defined by one of the bridging elements, the remaining edges being located downstream of the first edge with respect to a direction of rotation of the rotor body, the remaining edges and bridging elements extending non parallel to a longitudinal axis of the at least one apex seal of each apex portion, the bridging elements presenting an inverted V shape with respect to the direction of rotation.