| 摘要 |
A rotor for a rotary engine comprising an external surface 14 extending between parallel end faces 12, having three apexes 18 and being defined by three flanks 40 each extending between two apexes and having a leading portion 42 and a trailing portion 44 defined by the direction of rotation of the rotor, wherein in the proximity of each apex each adjacent leading and trailing portion has an internal surface 32, 34 together defining walls of a cooling channel 30 extending between the end faces, multiple fins 50 extending in to each cooling channel from the internal surface of each leading portion but not trailing portion. Preferably, the remaining part of each channel is defined by the outer surface of a ring gear 22 or eccentric bearing 20. The fin arrangement allows for a higher rate of heat removal from the leading portions providing a more even heat profile along the whole of the flank. |
