What does the flywheel do? What is the role of the flywheel

The flywheel is a disk-shaped part with a large moment of inertia, which acts as an energy store. In addition to the external output, part of the energy transmitted by the engine to the crankshaft during the power stroke is absorbed by the flywheel, so that the speed of the crankshaft does not increase much. In the three strokes of exhaust, intake and compression, the flywheel releases its stored energy to compensate for the work consumed by these three strokes, so that the speed of the crankshaft is not reduced too much from the oil sealing principle of the return thread.

In addition, the flywheel has the following functions: The flywheel is a friction clutch.

active parts; The round hole in the center of the flywheel also needs to be fitted with bearings to provide support for the front end of the transmission shaft; 2~

The flywheel rim is inlaid with a flywheel gear ring 2 for starting the engine; On the flywheel is also engraved the upper stop.

Dot markers are used to calibrate ignition timing or injection timing and to adjust valve clearance. For example, the top dead center mark of the Jiefang CA6102 engine. When engraved on the flywheel rim is marked "top dead center."

1-6"When aligned with the engraved line on the flywheel housing, the piston of both cylinders is in the top dead center position.

Dongfeng EQ6100--1 engine, inlaid with a steel ball on the flywheel rim, when the steel ball and the flywheel shell.

When the scribe line on is aligned, it means that the piston of the two cylinders is in the top dead center position.

The flywheel effect means that in order to make the stationary flywheel turn, you have to exert a lot of force at first, pushing it repeatedly and repeatedly, and each turn is laborious, but the effort of each revolution will not be in vain, and the flywheel will rotate faster and faster.

Store energy and stabilize the rotational speed.

The flywheel stores a part of the work lost to the crankshaft in the work stroke with its own moment of inertia, which is used to overcome the resistance in other strokes, drive the crank connecting rod mechanism over the upper and lower dead center, ensure that the angular speed of rotation of the crankshaft and the output torque are as uniform as possible, and make it possible for the engine to overcome short-term overload.

It is the driving part of the friction clutch, which is engaged and separated from the clutch, and its function is to transmit the engine rotation force to the driving wheels through the transmission.

The outer edge of the flywheel is fitted with a flywheel ring gear, which engages with the drive gear of the starter for starting the engine.

In addition, a sign indicating the location of the pistons of the 1st and 6th cylinders is engraved on the edge of the flywheel, which can be used as a basis for checking and engine ignition timing.

The flywheel has a large moment of inertia. Since the work done by the individual cylinders of the engine is not continuous, the engine speed also changes. When the engine speed increases, the kinetic energy of the flywheel increases, storing energy; When the engine speed is reduced, the kinetic energy of the flywheel is reduced, releasing the energy.

The flywheel can be used to reduce speed fluctuations during engine operation.

The flywheel plays a major role, and once its work is abnormal, it will affect the normal operation of the engine. If the flywheel disc and the crankshaft disc are not properly installed or misaligned, the engine will shake, the clutch will tremble, and the clutch will make abnormal noises when running.

The part encircled by the dotted coil in the middle of the yellow fan is the crankshaft, and the part outside the dotted line of the yellow fan is the flywheel.

The big flywheel is common for three purposes:

1. Use its large mass to store energy, and when the piston connecting rod group is running, it is driven by inertia in the intake, compression and exhaust stroke. Thus freeing the crankshaft. to stabilize its normal operation.

2. Use the large gear ring above to connect the starter to start the car.

3. Combine and separate with the clutch friction plate and the clutch pressure plate at the rear. So that the power is exported outward.

Introduce. Because the gasoline is small viscous and evaporates quickly, the gasoline can be injected into the cylinder with the gasoline injection system, and after the pulse fluid compression reaches a certain temperature and pressure, it is ignited with a spark plug to make the gas expand and make a silver stop.

The gasoline engine is characterized by high speed, simple structure, light weight, low price, stable operation, and convenient use and maintenance. Gasoline engines are used in large quantities in automobiles, especially small cars.