The 139F four stroke gasoline engine has a few horsepower

1 hp. Kilowatts: You can see how much power and then convert horsepower.

Brand Model: Huasheng 139

Customization: Yes.

Brand: Huasheng.

Model: 139

Fuel: Gasoline.

Rotation: Clockwise.

Number of strokes: Four-stroke.

Number of cylinders: single cylinder.

Cooling medium: air cooled.

Rated speed: 6500 (rpm).

Applications: Many.

Product Type: New.

Rated voltage. 36（v）v

Continuous Output Power:

Maximum power: Rated frequency: 220 (Hz) HZ

Working mode: reciprocating piston internal combustion engine.

Start mode: Manual.

Fuel Tank Capacity:

Yongkang Garden Machinery Factory.

Gasoline engine model: 139F

Power type: single-cylinder, air-cooled, four-stroke.

Maximum power: Rated power.

Fuel consumption: 480g

Fuel consumption: l h

Net weight: oil volume (ml): 100

Minimum stable speed: 2500 r min

Bore: 39mm

Stroke: 26mm

Stroke bore ratio:

Displacement: 31cc

Fuel tank volume: effective compression ratio:

Ignition method: no contact.

Carburetor type: diaphragm type.

Output rotation direction: counterclockwise.

Both factories are 139f with different power, so you need to convert it yourself.

My phone headphones won't turn off.

This carburetor does not have a mixture ratio adjustment screw.

Hello. There is a copper screw on the carburetor. It is to loosen the mixture [If there is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello. The working process of a four-stroke internal combustion engine is composed of four strokes: suction, compression, work, and exhaust. The four strokes are a working cycle, in a working cycle, the piston reciprocates twice, the crankshaft rotates for two weeks, and in the four strokes, only the power stroke gas does the work externally, and the other three strokes are completed by the inertia of the flywheel.

1) Suction stroke: the intake valve opens, the exhaust valve closes, the piston moves downward, and the mixture of gasoline and air enters the cylinder;

2) Compression stroke: both the intake and exhaust valves are closed, the piston moves upwards, and the fuel mixture is compressed;

3) Power stroke: At the end of the compression stroke, the spark plug produces an electric spark, which causes the fuel to burn violently, producing high-temperature and high-pressure gas. The high-temperature and high-pressure gas pushes the piston to move downward, drives the crankshaft to rotate, and does work externally;

4) Exhaust stroke: the intake valve is closed, the exhaust valve is opened, and the piston moves upwards to discharge the exhaust gas out of the cylinder.

The suction pressure burst downstairs is well expressed and learned.

It doesn't burn the oil, and the intake and exhaust are more complete than the two-stroke... There are too many, it is advisable to look at the internal combustion engine construction.

Most of the motor gasoline engines are four-stroke gasoline engines. Compared with two-stroke fuel economy, compact structure is the mainstream technology.

Suction stroke: The piston moves from top to bottom, and the mixture of air and gasoline (or air) is inhaled, and the flywheel rotates for half a week.

Compression stroke: the piston moves from bottom to top, the flywheel rotates in half of the cycle, and the mechanical energy is converted into internal energy to do work stroke: the piston moves from top to bottom, the flywheel rotates in half of the cycle, the internal energy is converted into mechanical energy, and the external work is done once.

Exhaust stroke: the piston moves from bottom to top, and the flywheel rotates for half a week (relying on inertia) gasoline engine vehicles have the characteristics of high speed () light weight, low noise during operation, easy starting, low manufacturing and maintenance costs, etc., so they are widely used in cars and medium and small trucks and military off-road vehicles. The disadvantage is that the fuel consumption is high, and therefore the fuel economy is poor.

Due to the high compression ratio, the fuel consumption of diesel engine vehicles is about 30% lower than that of gasoline engine vehicles on average, so the fuel economy is better. For example, the liter diesel car produced by FAW-Volkswagen can save 2 liters of fuel per 100 kilometers compared with the liter gasoline car produced by FAW-Volkswagen. Generally, most trucks use diesel engines.

The weaknesses of diesel engine are that the speed is lower than that of gasoline engine (generally the maximum speed is about 2500-3000 rpm), high quality, high manufacturing and maintenance costs (because of the high processing accuracy requirements of fuel injection pump and fuel injector).

The piston goes down, the intake valve opens and the exhaust valve closes, and the air is inhaled.

The piston goes up, the intake valve and the exhaust valve closes, and the compression.

The piston to the top dead center, ignition, do work, and force the piston downward.

The piston goes up, the exhaust valve opens, and the exhaust gases are removed.

The four strokes of intake stroke - compression stroke - power stroke - exhaust stroke are reciprocated.

The so-called stroke is the four processes of intake, compression, work and exhaust of the engine in the crankshaft rotates for two weeks, and the piston runs four strokes to complete a working cycle, and Figure 3-l shows the working cycle of the four-stroke gasoline engine.

l) Intake stroke.

The piston moves from the top dead center to the bottom dead center, the intake valve is opened, the exhaust valve is closed, with the piston moving downward, the cylinder volume above the piston increases, so the pressure is reduced to below the atmospheric pressure, that is, the vacuum degree is generated in the cylinder, under the action of external atmospheric pressure, the combustible gas is sucked into the cylinder by the intake pipe and the intake valve, as shown in Figure 3-l(a). When the piston reaches the top dead center, the intake air is finished, and the gas pressure in the cylinder is lower than the atmospheric pressure, and the temperature is about 80-l30.

a-intake stroke; b-Compression stroke; c-Work stroke; d-Exhaust stroke.

2) Compress the stroke.

At the end of the intake process, the intake and exhaust valves are closed, the crankshaft continues to rotate, and the piston moves upwards from the bottom dead center to compress the combustible mixture, as shown in Figure 3-1(b). When the compression ends, the temperature and pressure of the mixture are related to the magnitude of the compression ratio, the larger the compression ratio, the higher the pressure and temperature at the end of compression. At the end of compression, the temperature of the mixture is about 350-450 °C, and the pressure.

3) Work itinerary.

At this time, the intake and exhaust valves are still closed, when the piston is close to the top dead center, the spark plug emits an electric spark, ignites the compressed mixture, and releases a large amount of heat when the mixed gas is burned, so that the pressure in the cylinder increases suddenly, the instantaneous maximum temperature can reach about 2000, and the maximum pressure reaches the top dead center under the impetus of high-pressure gas, and the piston moves to the dead center, so that the crankshaft rotates to do work, as shown in Figure 3-i(c).

4) Exhaust stroke.

The exhaust gases generated after the combustion of the combustible mixture must be discharged from the cylinder before the next intake stroke is possible. When the expansion is close to the end, the exhaust valve is opened early before the piston reaches the bottom dead center, and the exhaust gas is discharged by itself by the pressure of the exhaust gas, and after the piston reaches the bottom dead center, when the top dead center moves, the exhaust gas is forced to be discharged into the atmosphere, and the exhaust stroke ends after the piston reaches the top dead center. At this time, the temperature in the cylinder is about 600 900, the pressure is about l03 l19kpa, due to the existence of the combustion chamber and the influence of gas flow resistance, the exhaust gas in the cylinder can not be completely discharged.

The residual exhaust gas accounts for about 5% l5% of the fresh gas in the inlet cylinder.

At the beginning of the next cycle, the live wall descends, the exhaust valve closes, the intake valve opens, and the four-stroke cycle starts again, and in this way, the above process is always carried out continuously and again in the operation of the gasoline engine.

The working cycle process of the four-stroke gasoline engine is composed of four strokes: air intake, compression, combustion expansion, and exhaust.

One. Intake stroke.

At this time, the piston is driven by the crankshaft to move from the top dead center to the bottom dead center, and at the same time, the intake valve opens and the exhaust valve closes. When the piston moves from top dead center to bottom dead center, the volume above the piston increases, and the gas pressure in the cylinder decreases, forming a certain vacuum degree. Since the intake valve is opened, the cylinder communicates with the intake pipe and the mixture is sucked into the cylinder.

When the piston is moved to the bottom dead center, the cylinder is filled with fresh mixture and exhaust gases that were not discharged from the previous duty cycle.

Two. Compression stroke.

The piston moves from bottom dead center to top dead center, and the intake and exhaust valves are closed. The crankshaft is driven to rotate under the action of inertial forces such as flywheels, and the piston is pushed upward through the connecting rod, and the gas volume in the cylinder gradually decreases, the gas is compressed, and the pressure and temperature of the mixture in the cylinder increase.

Three. Combustion expansion stroke.

At this time, the intake and exhaust valves are closed at the same time, the spark plug is ignited, the mixture is burned violently, the temperature and pressure in the cylinder rise sharply, and the high-temperature and high-pressure gas pushes the piston to move downward, and the crankshaft is driven to rotate through the connecting rod. In the four strokes of the engine working, only this stroke can realize the conversion of heat energy into mechanical energy, so this stroke is also called the work stroke.

Four. Exhaust stroke.

At this point, the exhaust valve opens, the piston moves from bottom dead center to top dead center, and the exhaust gases are discharged from the cylinder as the piston moves upward. Because the exhaust system has resistance and the combustion chamber also occupies a certain volume, it is impossible to exhaust the exhaust gas at the end of the exhaust gas, and this part of the exhaust gas left is called residual exhaust gas. The residual exhaust gas not only affects the inflation, but also has a negative effect on combustion.

At the end of the exhaust stroke, the piston returns to the top dead center. This completes a work cycle. The crankshaft then continues to rotate thanks to the inertia of the flywheel, starting the next cycle. And so on, and so on, and the engine keeps running.

In a four-stroke engine, its four strokes are: intake stroke (piston down), compression stroke (piston up), expansion stroke (piston down), exhaust stroke (piston up), such a reciprocating process, the flywheel rotates twice, completes a work cycle process, that is, the piston moves up and down four times, this is the meaning of four-stroke, only one of the four strokes is work, that is, the expansion stroke, and the others are to consume energy.

The piston goes down to intake, the piston goes up to compress, the ignition burns the piston down, and the piston goes up to exhaust.

Intake, compression, work, exhaust.

The third physics of the first three gasoline engine working principle four-stroke is the clearest presentation of the whole network.

The working process of the engine is divided into four processes: air intake, compression, work and exhaust. The four-stroke engine accomplishes these four processes in four strokes of the piston moving up and down. Intake stroke.

The intake valves are open and the exhaust valves are closed. As the piston moves from top dead center to bottom dead center, the volume above the piston increases, and the pressure in the cylinder decreases, resulting in vacuum suction. Suck the gas mixture into the cylinder.

Compression stroke: The intake and exhaust valves are closed, and the piston moves from the bottom dead center to the top dead center to press the mixed gas to the combustion chamber. Work Itinerary:

At the end of compression, the intake and exhaust valves are still closed, and the spark plug emits an electric spark to ignite the combustible mixture, and the gas after combustion expands violently, generating a huge pressure, forcing the piston to go down rapidly, and the crankshaft is rotated through the connecting rod. Exhaust stroke: The exhaust valve opens, the intake valve closes, and the piston moves from the bottom dead center to the top dead center to expel the exhaust gas.

1 horsepower = kilowatt You can see how much power and then convert horsepower; Brand Model: Huasheng 139Customization: Yes. Brand: Huasheng. Model: 139Fuel: Gasoline. Rotation: Clockwise.

Number of strokes: Four-stroke. Number of cylinders: single cylinder. Cooling medium: air cooled. Rated speed: 6500 (rpm).

Applications: Many. Product Type: New. Rated voltage.

36（v）v；Continuous Output Power:Maximum power:; Rated Frequency:

Manual; Fuel Tank Capacity:

How a four-stroke gasoline engine works.

1. In this stroke, the piston moves from the top dead center to the bottom dead center, the intake valve opens, the exhaust valve closes, and the crankshaft rotates 180 degrees.

When the piston moves from the top dead center to the bottom dead center, the pressure inside the cylinder drops, and the mixture of gasoline and air is sucked into the cylinder through the intake valve, due to the presence of intake resistance, when the piston reaches the bottom dead center, the pressure in the cylinder is lower than atmospheric pressure.

2. During the compression stroke, the piston moves from the bottom dead center to the top dead center, the intake and exhaust valves are closed, and the crankshaft rotates 180 degrees. When the piston moves from bottom dead center to top dead center, the temperature and pressure of the mixture in the cylinder continue to rise, making it easy to ignite. A larger compression ratio is conducive to improving the power and economy of the engine, but the compression ratio is too high, which is easy to cause the engine to work abnormally.

3. During the power stroke, the intake valve and exhaust valve are closed, the piston moves from the top dead center to the bottom dead center, and the crankshaft rotates 180 degrees. Before the compression stroke piston reaches the top dead center, the spark plug ignites the mixture, and under the high pressure generated by the combustion of the mixture, the piston is pushed from the top dead center to the bottom dead center to generate power. The maximum instantaneous pressure in the cylinder can reach 3 to 5 MPao

4. During the exhaust stroke, the piston moves from the bottom dead center to the top dead center, the intake valve is closed, the exhaust valve is opened, and the crankshaft rotates 180 degrees.

When the piston moves from bottom dead center to top dead center, the combustion exhaust gases are discharged. When the piston reaches the exhaust top dead center, there is still a small amount of exhaust gas in the cylinder due to the existence of the combustion chamber volume, and its pressure is also higher than the atmospheric pressure due to the exhaust resistance. At this point, the piston returns to the initial state of the intake stroke, so that the engine cylinders complete a working cycle.

To sum up, the four-stroke gasoline engine completes a working cycle through four strokes: air intake, compression, combustion work, and exhaust. During this period, the piston reciprocated four strokes between the top and bottom dead center, and the crankshaft rotated for two weeks.