Mitsubishi Heavy Industries to develop small turbocharger

Nowadays car driving experience as people increasingly demanding, turbocharged engine power accompanying hysteresis also increasingly being valued by major manufacturers. MHI on the turbine by the design is optimized so that the turbocharger react more quickly to improve the acceleration of the vehicle when the driver's driving experience. KP35 Turbo Mitsubishi Heavy Industries has developed a small-displacement 1.0L turbochargers for light vehicles, such as the use of the following, and on the "people and cars Technology Exhibition 2014" exhibition. The series of small turbine can effectively shorten the onset time of the turbine, is more suitable for city traffic and small-displacement engine after the match.

It simply refers to the structure of the turbine component, the exhaust gas discharged through the combustion chamber which drive the rotation of the turbine, and the turbine impeller driven rotation coaxially. Such rotation of the impeller formed in the intake manifold pressure, thereby improving engine intake air, achieve the purpose of improving performance.
Since the turbine is driven by the engine exhaust rotating at low engine speeds, less displacement, turbine, although the speed of rotation, but not enough to air a powerful suction effect greatly reduced. clio turbo And this hysteresis in the small displacement engine is particularly magnified. Small-displacement engines because of their relatively weak low-speed torque, coupled with the low-speed turbo effect is not obvious, the vehicle at low speed acceleration performance conditions must be satisfactory.
Reduce turbo lag problem is small-displacement turbocharged engine to match the primary problem. Exclude increase A / R value, but to reduce the hysteresis, the most effective way is to reduce the inertia of the blades, the conventional practice is to reduce the quality of the turbine blades, turbine blades so that as soon as possible to reach the required speed. But the case of diminished number of blades, lower quality leaves no doubt of the blade material made high demands. Mitsubishi Heavy Industries recently released for the following turbo 1.0L displacement engine turbine blades used is to reduce the number of previous products from 11 to 9. The blade is reduced, and in case of the same structure, material, lighter weight means, so that their tangential inertial force becomes smaller, the hysteresis is fundamentally turbo effective relief.

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