Problem The present invention can arrange electrically-operated actuators for driving throttle valves in a V-shaped space defined between front and rear banks of a V-type internal combustion engine by avoiding the formation of a region into which hot air is liable to easily filled in the V-shaped space thus preventing the overheat of the actuators whereby the durability of the electrically-operated actuators can be enhanced. Further, in spite of the fact that the electrically-operated actuators are arranged in the V-shaped space, it is possible to ensure a storing space for arranging auxiliary equipment or the like in the V-shaped space.;Means for Resolution An intake system IN of an internal combustion engine is arranged in a V-shaped space V formed between front and rear banks BF, BR, and the intake system IN includes front and rear throttle bodies 25F, 25R which form front and rear throttle valves 27F, 27R thereon, and electrically-operated actuators AE which drive the throttle valves 27F, 27R. The electrically-operated actuators AE are respectively arranged between cylinder heads 14 of the front and rear banks BF, BR and the front and rear throttle bodies 25F, 25R.
展开▼
