supercharger 1
Introduction:
mounted on a vehicle with a supercharger, the supercharger is initially in the invention is just said supercharger (a NYTRAN® Supercharge), then after the invention in order to distinguish the two turbochargers, a turbocharger is initially called Turbo supercharger, the supercharger is called mechanical supercharger. Over time, both as it were simplified Supercharger Turbocharger with the!
supercharger compressor driving force from the engine crankshaft. Usually use a belt connected to the crankshaft pulley, crankshaft driven supercharger operating torque, to boost the purpose.
Type:
Depending on the configuration, the supercharger, there have been many types, comprising: a vane (Vane), Lutz (Roots), Winkle (Wankle) and other types. Now, however, more common to the first two.
There are two types turbocharger Cruz double leaf clover rotor, the rotor Futaba currently more common, which is configured in an elliptical housing installed with two cocoon-shaped rotor, the rotor retain very small gap between without direct contact. Rotors by means of the interlocking of helical gears, wherein a rotor shaft of the drive pulley connected to an electromagnetic clutch pulley on the rotor shaft, i.e. when not release the clutch to stop the supercharger boost. Closure of the clutch by the computer control to achieve the purpose of fuel. The vane body (also referred to as swirl) is belongs to a vane body. The way it works is the use of three planetary gear sets may be varied depending on the rotational speed of the centrifugal force driven intake blade. Through mutual friction gear set and the axis of the blade, increase the rotational speed of the axis and further increase the speed of the blade inlet, to obtain a sustainedConstant pressure response. In other words, the higher the engine speed, the rotational speed of the intake blade can follow the increase.
Characteristics:
Characteristics supercharged: turbo supercharger with a clear difference in the power output, the former close to the natural gas feed linear output, and the latter because of the phenomenon turbo lag, contribute relatively little abrupt, less linear.
Since the actuation principle of the supercharger, it can be obtained at low speed boost. Boost power output and also a certain proportion to the rotational speed of the crankshaft, i.e., supercharged engine output power with increasing speed, also increases. So very similar output performance supercharged engine with natural gas, but it can have a greater horsepower and torque.
Because the supercharger is driven by belt characteristics, the supercharger speed and the engine speed of the internal vanes is fully synchronized, the basic features are:
Engine rpm X (R1 / R2) = rpm of the turbocharger vane
the radius R1 of the engine belt disk
the radius R2 of the belt pulley supercharger
and the supercharger rotational speed since the engine a supercharger driven by an internal mechanism. Its overall structure is simple, the working temperature is between 70 ℃ -100 ℃, than by the exhaust gas-driven turbocharger is a high temperature environment of 400 ℃ -900 ℃ much more comfortable. Accordingly, supercharger systems substantially identical to the cooling system, lubrication system requirements and NA engine, mechanical maintenance procedures also similar.
Further, the supercharger small size advantage, without modifying the engine body, easy to install, thus modified sector in the United States is also popular. Originally designed for the large displacement vehicles, especially suitable for conversion.
touring car racing in the modified To remove the air conditioning compressor, and equation (Formula) racing, and even start the motor, oil pump had been turned into an external connection, the objective is to reduce the burden on the engine caused.
powered by engine driven supercharger, as with the above components, will bring an additional burden to the engine. Therefore, the supercharger itself running resistance must be as small as possible, it will not drag on the efficiency of the engine, the engine speed to enhanceFaster.
However, the amount of intake air is proportional to the supercharger resistance relation. When high supercharging, although the engine output power increase, but the relative wind receiving blades booster internal resistance will be increased when the resistance reaches a certain limit, the resistance will make the engine under great loads, severe enhance the impact speed. Thus, the mechanical supercharger must strike a balance between value and supercharged engine load, in order to avoid the negative effects of high pressurized brings.
Currently, the European design supercharger, mostly between low boost 0.3-0.5bar, focusing ldquo high speed at low speed and the output torque; plateau rdquo; horsepower output. Taiwan ldquo; Daka rdquo; research and development of new high-efficiency turbocharger can produce moderate 0.6-1.2bar boost the value of the power to enhance the range is more significant. Although at this stage supercharger system is still unable to break through the high range 1.5bar of boost, turbocharged already exceeded the realm of ultra-high pressure 2.2bar, the single terms of efficiency, turbocharged system can be used ldquo; multiple rdquo; to enhance the engine output, but to pay the money, maintenance, and peripheral integration is supercharged several times, is better, then please the reader to judge.