time2011/12/01
Quality of motor performance
Industrial Electric Motor with fuel-powered machinery and equipment, the final drive of the mechanical energy into heat energy into chemical fuels. Divided by the internal combustion engine combustion engines and outboard engines, including piston-type internal combustion engines and gas turbines; into reciprocating and rotary piston movement means that, according to use, can be classified as cars, construction machinery, marine agriculture and motorcycles. Motorcycle engines are internal combustion engine type, usually reciprocating piston structure.
Assembled according to certain technical requirements of the Electric Motor, its performance is good or bad, needs to be tested and they need some evaluation criteria, which is called performance testing. Engine performance indicators generally fall into two categories based on the decline in the power piston is calculated on the basis of existing indicators, called the instruction pointer. Another indicator is the crankshaft output power, known as an effective indicator calculations. Direction indicators, including the engine power and economy. Mainly refers to the dynamic power, torque and speed, economy, mainly referring to the fuel and lubricant consumption and thermal efficiency, and results of operations (cold start, the quality of noise and exhaust emissions) and so on.
In the internal combustion engine, the efficiency of the relationship between the input and output, the efficiency of the engine power output is equal to the engine combustion and fuel available to power ratio. The efficiency of the engine mechanical efficiency and thermal efficiency are two indicators. Effective power and mechanical efficiency is equal to the ratio of indicated power. The mechanical efficiency of gasoline engines typically 0.8-0.9. Thermal efficiency of fuel combustion for heat and acting that part of the total calories can be derived from the ratio.
Brushless motors performance is the mutual influence and mutual restriction, different uses of the engine performance requirements of the different focus. So-called high-quality engine, that is, under certain conditions, the technical requirements reasonably unified engine.
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