| 摘要 |
PCT No. PCT/SE95/00149 Sec. 371 Date Aug. 16, 1996 Sec. 102(e) Date Aug. 16, 1996 PCT Filed Feb. 14, 1995 PCT Pub. No. WO95/22689 PCT Pub. Date Aug. 24, 1995On the rotary drive shaft (10) of a four-stroke engine is non-rotationally mounted a hub (11) supporting four cylinders (14) wherein pistons (16) are arranged for reciprocal movement radially towards the hub. The hub (11) is provided with a combustion chamber (25) having common inlets and outlets (26, 27) formed in a valve ring (28) rotating together with the hub (11) and sealingly abutting against a stationary port ring (30) having intake and exhaust ports (36, 37) communicating with inlet and outlet channels (34, 35) arranged alternately to assume a position in registry with the inlets and outlets (26, 27) associated with the respective combustion chamber (25). One spark plug (46) for each combustion chamber (25) is arranged to rotate with the hub (11) with the spark plug electrode end projecting into the associated combustion chamber opposite the common valve ring inlets and outlets (26, 27). |
