Turbo-separator motor Germany Turbo-separator model Turbo-separator price

The Turbo-separator motor is a rotating electrical machine containing a brush assembly that converts direct current electrical energy into mechanical energy (DC motor) or converts mechanical energy into direct current electrical energy (DC generator). Unlike brushless DC motors, the brush assembly is used to introduce or extract DC voltage and DC current. Brushed DC motors are the foundation of all motors; they feature fast starting, timely braking, smooth speed regulation over a wide range, and relatively simple control circuits.

Turbo-separator motor fault analysis

During engine operation, the engine speed and crankshaft position sensor detects speed signals and provides crankshaft position signals, serving as the primary basis for various controls by the control system. If the sensor or its wiring fails, the ECU cannot receive speed and crankshaft position signals, resulting in incorrect control of fuel injection and ignition timing. This leads to inactive injectors and non-firing spark plugs. Use a stethoscope and timing light to check whether the injectors and spark plugs are working. When such faults occur, the self-diagnostic system usually displays fault codes. Perform a comprehensive inspection of the speed sensor, 1, and 2 camshaft position sensors and their wiring. First, disconnect the connectors of each sensor and check their resistance. If the resistance is abnormal, replace the sensor; if normal, check whether the wiring and connectors between the ECU and each sensor are normal. A failure in the fuel pump or control circuit can also cause a lack of fuel pressure in the fuel supply system. Even if the injectors work normally, fuel will not be injected properly. The inspection method is: use a jumper wire to connect diagnostic plug terminals +B and FP, then turn on the ignition switch (without starting the engine) to check for pressure in the fuel inlet hose. If there is pressure in the hose and a return fuel sound is heard, the fuel pump itself is fine; otherwise, inspect the fuel pump. Use a multimeter to measure the resistance between terminals 4 and 5. If it does not match the specification, replace the fuel pump. If the fuel pump works normally, inspect its control circuit, which mainly includes fuses, the EFI main relay, fuel pump relay, resistors, and all wiring and connectors.

Turbo-separator motor protection

Motor coils are typically wound with very fine copper wire and have poor current-carrying capacity. When the motor load is high or the motor stalls, the current flowing through the coil increases rapidly, causing the motor temperature to rise sharply, which can easily burn out the copper windings. If a polymer PTC thermistor is connected in series with the motor coil, it provides timely protection during motor overload, preventing the motor from burning out. The thermistor is usually placed near the coil so that it can sense temperature more easily, making the protection faster and more effective. For primary protection, KT250 type thermistors with higher voltage ratings are usually selected. For secondary protection, thermistors with lower voltage ratings such as KT60-B, KT30-B, KT16-B, and chip-type motor thermistors are usually selected.

Turbo-separator motor classification

Motors can be classified in the following two ways: AC motors are usually divided into AC generators, AC motors, and synchronous condensers based on their function. Due to the reversibility of motor operating states, the same motor can serve as either a generator or a motor. Dividing motors strictly into generators and motors is not entirely accurate; some motors mainly operate as generators, while others mainly operate as motors. AC motors are divided into synchronous motors and asynchronous motors by type. The rotor speed ns of a synchronous motor is the same as the speed of the rotating magnetic field, known as synchronous speed. There is a strict relationship between ns, the frequency of the connected AC power (f), and the number of pole pairs of the motor (P). ns = 60f/P. With a power frequency of 50 Hz, the synchronous speed of a one-pole-pair three-phase AC motor is 3000 rpm, and the synchronous speed of a two-pole-pair three-phase AC motor is 1500 rpm, and so on. The rotor speed of an asynchronous motor is always lower or higher than the speed of its rotating magnetic field, hence the name asynchronous. The difference between the rotor speed and the rotating magnetic field speed of an asynchronous motor (called slip) is usually within 10%.

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