Global trade resource libraries

List of contents of this article:

• 1,Global trade resource libraries What are the external characteristics of the engine?
• 2, LaunchWhat is the relationship between the external characteristics of the machine and the driving force
• 3, What is the characteristic curve outside the engine?
• 4, What are speed characteristics and external characteristics?What is the meaning of external characteristics?
• 5, Gasoline start External characteristics

What are the external characteristics of the engine?

1. The external characteristics of the engine are: at normal temperature, normal oil pressure ignition advance angle (or fuel injection advance angle) and the adjustment of the fuel supply system are all in the best state, so that the throttle opening (or oil supply adjustment lever) remains unchanged in a certain position.

2. Load characteristics.The external characteristics of the engine refer to the relationship between the power, torque and fuel consumption rate of the engine and the change of the crankshaft speed of the engine when the throttle valve is fully open or the high-pressure oil pump is in the maximum oil supply position, which reflects the performance of the engine under maximum load conditions.

3, Ne, ge) The relationship that changes with the speed. When the throttle opening is the largest or the position of the fuel injection pump rack is in the maximum oil supply position, the speed characteristic of the engine is called the full load speed characteristic, or external characteristic, and others are called the partial load speed characteristic.

4. The external characteristic curve of the engine refers to the curve of the power or torque measured at full load of the engine with the speed. The following is a specific introduction: Engine characteristic curve: If the functional relationship between the engine power torque and fuel consumption rate and the engine crankshaft speed is expressed as a curve, this curve is called the engine characteristic curve.

5. Abbreviated as some characteristics. When the engine throttle valve is fully open or the fuel rod is in full oil supply, the measured maximum power, maximum torque and fuel consumption of the engine are called the external speed characteristics of the engine. Abbreviated as external characteristics.

6. The external engine characteristic curve is the curve of the engine output power (torque) measured with speed when the engine throttle opening is 100%. Its curve characteristics are: both the power curve and the torque curve show convex curves, but the performance of the two is different.

What is the relationship between the external characteristics of the engine and the driving force

1. Automobile driving force (Drivin G force) is also known as automobile traction. It refers to the driving force of the car. The torque generated by the internal combustion engine of the car is transmitted to the drive wheel through the transmission mechanism, so that the drive wheel produces a circumferential force on the road surface.

2. The external characteristics, maximum power and maximum torque of the engine have the greatest impact on the dynamics of the car. When the attachment conditions permit, the greater the power and torque of the engine, the better the power of the car. However, the engine power is too large, but the fuel economy of the car declines, and the driving force of the car is still limited by attached conditions.

3. The main factors affecting the dynamics of the car are mainly: the influence of engine parameters includes the maximum engine power, the maximum engine torque and the shape of the external characteristic curve of the engine. The influence of the transmission ratio of the main reducer. The choice of the transmission ratio of the main reducer mainly considers the purpose of the car and the frequently used road conditions.

What is the characteristic curve outside the engine?

When the engine throttle valve is fully open or the high-pressure oil pump is in the maximum oil supply position, this characteristic is called the external characteristic of the engine, and the corresponding relationship curve is called the external characteristic curve; if the throttle valve is partially open, it is called the partial load characteristic curve of the engine.

The external characteristic curve is under full load conditions of the engine (the throttle is fully open), the relationship curve diagram of torque, power and fuel consumption rate changes with rotational speed is drawn in the right-angled coordinate system. The horizontal axis x axis is the rotational speed, and the vertical axis y axis draws three curves of torque M, power P and fuel consumption rate ge from top to bottom respectively.

The external characteristic curve of a synchronous generator refers to the relationship between the voltage at the motor end and the load current. The external engine characteristic curve refers to the curve in which the power or torque measured at full load of the engine changes with the speed.

What are speed characteristics and external characteristics? What is the meaning of external characteristics?

1. When the engine throttle valve is fully open or the oil rod is in full supply, the measured maximum power, maximum torque and fuel consumption of the engine are called the external speed characteristics of the engine.Abbreviated as external characteristics. The external characteristics of the engine indicate the highest power performance that the engine can achieve, which is a performance index that must be guaranteed by the manufacturer and marked on the instruction manual.

2. The external characteristics and some characteristics of the engine are collectively referred to as the speed characteristics of the engine.

3. Engine speed characteristics refer to the relationship between the change of effective power Pe, effective torque Te and effective fuel consumption be relative to the engine speed n. If the speed characteristics of the engine are used to explain the concepts of load rate and load, the definition of engine load rate will be clearer. Curve I is the external characteristic, and curve II and III are partial velocity characteristics.

4. When the oil volume adjustment mechanism of the diesel engine is fixed in the position of the calibrated (rated) power cycle fuel supply, the measured speed characteristic is the calibration power speed characteristic, which is also commonly known as the external characteristic, which represents the maximum power performance that the engine can obtain.

5. Speed characteristics refer to the relationship between the performance index of the diesel engine with the rotation speed when the amount of oil supply is certain. The speed characteristic measured when the oil volume adjustment mechanism is limited to the circulating oil supply of the calibration power is the external characteristic. External characteristics indicate the highest performance that a diesel engine can achieve.

external characteristics of gasoline engine

The external characteristics of the gasoline engine when it explodes include: the engine loses normal operation and has obvious vibration and vibration. The engine may make an abnormal explosion sound. Obvious black smoke may come out of the exhaust pipe. The engine may have abnormal high temperature and overheating. The engine may have abnormal fire.

The external characteristics of the engine The output power of the engine, the rotational distance and auto diesel consumption rate are related to the change of the crankshaft speed ratio of the engine, that is, the speed characteristics of the engine.

You can also understand it as the percentage of throttle opening at a specific speed. On the universal characteristic curve, the higher the point, the higher the load rate, and the load is 100% at the highest point (external characteristic). In general, the smaller the load rate, the lower the thermal efficiency of the engine, and the higher the fuel consumption.

From the external characteristic curve, you can see the maximum power and maximum torque that the engine can output, as well as their corresponding speed and fuel consumption. The speed characteristic measured when the throttle valve of the gasoline engine is partially opened is called the partial speed characteristic.