Construction materials HS code references

List of the table of contents of this article:

• 1, Dongfeng Xiaokang engine rotates over there
• 2、How does the car engine reverse?
• 3, Is the direction of rotation of the car engine the same as that of the generator?

Dongfeng Xiaokang engine rotates there

Make sure that the engine is in the stop position on the No. 1 cylinder, bend The shaft sprocket keyway is at 11 o'clock. Install the left chain crankshaft sprocket, and pay attention to ensure that the timing marking line is facing forward. At the same time, installFor the left camshaft, make sure that the timing mark of the intake camshaft is 15 aligned with the connecting rod mark on the surface of the cylinder head.

The normal value range of the ignition advance angle is 6° to 12°. The ignition advance angle is not fixed. It changes with the working state of the engine, and the temperature is also constantly changing. Generally, the ignition advance angle of gasoline engines is about 10 degrees, and the ignition advance angle of diesel engines is about 15 degrees.

Rot the fixing screw of the distributor shell, and rotate the shell in the direction of rotation of the distributor axis first, so that the two contacts are in the closed position.

How does the car engine reverse?

1. When the engine is pulling out, that is, when the engine is about to be turned off, the diesel engine reversal is most likely to occur at the moment when the clutch pedal is stepped on and the accelerator is slowed down. Although diesel engines can produce reversals, it is also rare.

2. Due to the long use of the engine, it is not maintained in time, and there is too much carbon in the exhaust pipe, which increases the exhaust resistance. Cause engine reversal. The elimination method is to clean up the carbon and debris gathered in the exhaust pipe silencer to make it unobstructed.

3. Therefore, when the diesel engine reverses, it can be inhaled and compressed from the exhaust door. After the piston is compressed to the upper stop point, the fuel injector just injects fuel. As long as the temperature in the cylinder is sufficient, the diesel can still burn normally, so it can be reversed.

4. Forward and backward is not controlled by the forward or reverse rotation of the engine, but because there is a transmission to control, forward and backward gears to replace the gear steering, and then the engine drives the rotation to achieve the purpose of forward and backward.

5. The harm of diesel engine reversal: (1) If it is an agricultural diesel engine reversal, it can be seen and will not cause an accident. Just turn off the engine immediately.

6. The operation of the car engine has direction and order, not what you think. You can run in the opposite direction by starting it backwards. Don't say it turns backwards.Even if the ignition timing deviation does not work at all, only a simple single-cylinder mechanical structure engine is prone to this situation. The starter will not reverse because the positive and negative poles are reversed.

Is the rotation direction of the car engine and the generator the same

1. The car generator is installed on the car. Because the direction of rotation of the engine has been positioned, it rotates in the same direction no matter how it is installed, such as If it is used in other places and driven by other power, it can be used regardless of positive or negative. The generator cooling fan is a right-angle fan with snap claws, which will dissipate heat no matter which direction it turns.

2. There is no permanent magnet in the car generator. It relies on the coil to generate a magnetic field, and the rotor of the generator generates a magnetic field.The coil, when the generator is running, the battery first electrgises the rotor coil (called excitation current) to generate a magnetic field, and then when the rotor rotates, it generates a rotating magnetic field and generates induced electricity in the stator coil.

3. Industry unified regulations: the direction of rotation of the engine crankshaft is unified as follows. At the front end of the engine (stipulating that the crankshaft pulley end is the front end and the flywheel side is the rear end): the rotation direction is clockwise, and vice versa is counterclockwise. For example, ships use internal combustion special aircraft.

4. The engine drags the DC-excited synchronous generator rotor and rotates at a speed of n, and the three-phase stator winds the resistance to induce the AC potential. If the stator winding resistor is connected to the electric load, the motor has AC power output, and the alternating current is converted into direct current from the output terminal through the rectifier bridge inside the generator.