Zhejiang Cfmoto Power Co., Ltd.

Ying Fang

Zhiyong Chen

An He

Qianjin Li

Bingxiang Lyu

Guiming Shu

A straddle-type vehicle () includes a frame () and an engine () mounted on the frame (), the engine () includes a cylinder head () positioned toward the rear end of the frame, and located below a saddle seat (). The cylinder head faces toward the rear end of the frame, which allows the heated cylinder head of the engine and the exhaust pipe connected to the cylinder head to avoid contact with the vehicle the user's legs while riding the vehicle, so the effect of heat emitted from the cylinder head on the rider's experience is reduced.

Straddle-type vehicle

An off-road vehicle includes a frame, a plurality of wheels, a prime mover assembly with an engine, and a drive train having front and rear differentials. The engine body defines a cylinder axis which slants upwardly and rearwardly, with a cylinder head mid-point defined where the cylinder axis intersects an exterior surface of the cylinder head. A cylinder front line running within the longitudinal mid-plane between the front differential output axis and a projection of the cylinder head mid-point on the longitudinal mid-plane has a cylinder front line length L, cylinder rear line running within the longitudinal mid-plane between the rear differential output axis and the projection of the cylinder head mid-point on the longitudinal mid-plane has a cylinder rear line length L, and a ratio of the cylinder front line length Lto the cylinder rear line length Lis in the range from 0.4 to 1.8.

Off-road vehicle

A straddle-type vehicle () includes a frame () and an engine () mounted on the frame (), the engine () includes a cylinder head () positioned toward the rear end of the frame, and located below a saddle seat (). The cylinder head laces toward the rear end of the frame, which allows the heated cylinder head of the engine and the exhaust pipe connected to the cylinder head to avoid contact with the vehicle the user's legs while riding the vehicle, so the effect of heat emitted from the cylinder head on the rider's experience is reduced.

An exhaust system for an off road vehicle includes a main intake pipe running in a generally longitudinal direction on the vehicle, receiving gasses from a first intake pipe for a forward cylinder and from a second intake pipe for a rearward cylinder of an mid-mounted internal combustion engine. A catalytic converter receives gasses from the main intake pipe. Instead of being mounted longitudinally, the catalytic converter extends in a transverse direction, at the rearward end of the exhaust system, behind the axis of the rear wheels. A muffler, located over the axis of the rear wheels, also extends in a transverse direction and receives gasses from the catalytic converter. The muffler outputs the gasses through a tailpipe, which is preferably above and extends wider than the main intake pipe.

Growing community of inventors

Hangzhou, China

Ying Fang