Recently, Suzuki introduced a variable suction system engine that uses a variable suction system to increase the torque in the engine's rotating area. Generally, in the case of using a two-stage switching type system, the valve switching is to make the suction passage in the low rotation speed area longer and the passage in the high rotation speed area shorter, but this time it uses the short passage in the low rotation speed range, in 3000 A long channel is used in the medium speed zone of -5000 rpm and a short channel is used in the high speed zone. According to reports, in the low-revving area, due to the small amount of air, it is necessary to shorten the suction path as much as possible to reduce the resistance and improve the fuel efficiency.
Moreover, reducing the knock in low-speed areas can also effectively improve the fuel efficiency, so this system expands the water path of the cylinder head, making the cylinder head easier to cool. When knocking is detected, the thermal efficiency can be reduced by delaying the ignition time, thereby reducing the occurrence of knocking problems. The maximum output power was increased from 92 kW of the original engine to 100 kW, which was mainly due to the increase in valve lift. The suction end increased from 8.1 mm to 8.8 mm, and the exhaust end increased from 7.5 mm to 7.8 mm. This increase in friction due to the spring constant of the valve spring increases, but the emphasis on output power has changed.
At the same time, in order to reduce the pressure loss of the exhaust pipe, the catalyst below the floor was also removed, only the direct type catalyst was used, and not only that but also the capacity of the auxiliary combustion chamber was increased. However, the diameter of the exhaust pipe was not changed. In addition, the shape of the suction manifold is also made smoother. The original nozzle installation site is concave and convex. This time, the nozzle has been changed to a longer one, and the unevenness of the installation site has been reduced. At the same time, the roughness of the air intake port surface has also been improved, thereby reducing the resistance.
About Suzuki <br> Founded in 1920, Suzuki started producing motorcycles in 1952 and began manufacturing cars in 1955. Suzuki Motor Corporation (SUZUKI) was established in 1954 to produce miniature cars. Suzuki is also a member of the Toyota Group, while General Motors holds a 10% stake in Suzuki. Suzuki Motor Co., Ltd. was the first to successfully cooperate with a Chinese car company. Suzuki has a history of more than 20 years in China. At present, Suzuki’s automobile business in China will form a layout consisting of Changan Suzuki, Changhe Suzuki, and Suzuki China, which will soon start selling Suzuki imported cars.
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