| 摘要 |
<p>A rotary engine including a piston assembly (4, 6) having first and second adjacent hubs (66, 80). The hubs are rotatably mounted in a housing (2) about a common axis where they are coupled to two drive shafts (8, 10) that are concentrically arranged about the common axis. A first and second set of pistons (68, 82) extend radially outwardly from the first and second hubs, respectively. Each piston head from the second set of piston heads is circumferentially spaced from a piston head of the first set to form a fuel expansion chamber (I-IV) therebetween. The distance between the rotational axis of the hubs and the outer peripheral surface of the piston heads is at least three times the distance between the outer peripheral surface of the piston assembly hubs and the outer periphery of the piston heads i.e., the radial depth of the expansion chambers. This construction permits the moment arm between the piston heads and the drive shafts and, thus, the torque developed by the engine to be relatively large as compared to typical reciprocating combustion engines.</p> |
