| 摘要 |
PCT No. PCT/AU93/00145 Sec. 371 Date Sep. 30, 1994 Sec. 102(e) Date Sep. 30, 1994 PCT Filed Apr. 5, 1993 PCT Pub. No. WO93/20341 PCT Pub. Date Oct. 14, 1993An exhaust system for an internal combustion engine having an exhaust port and an exhaust chamber communicating between the ports includes a variable dimension element in the exhaust chamber adapted to vary an effective dimension of the exhaust chamber during operation of the engine. |
