For many people, does the original hot car need to be? It seems that it has always been an open question. Many old drivers around me will say: “The car must be hot in place! Let’s wait for the speed to fall. The car is completely warmed up, and it’s not too much for two or three minutes. It will be fine in ten minutes!" However, is it really necessary to have a hot car in place? Hot car origin? Speaking of this topic, I still remember that Liu Shi, once a special driver training center of the Beijing Police Academy, once said: “I have done more than ten years of popular science work, and I hope that everyone will not be hotter!†More than 20 years ago, domestic cars The carburetor engine is used. Before the operating temperature is reached, the fuel atomization is not good, and the fuel supply system often fails to work properly. At this time, if the vehicle is barely driven, unstable phenomena such as unstable speed and flameout may occur, and the engine must be warmed up. Only after the plane can be driven. This is the origin of the hot car. From the 1990s, China began to force new production vehicles to be equipped with fuel injection systems and three-way catalysts. In August 2001, it stopped selling carburetor vehicles nationwide. Computer-controlled injectors not only accurately spray fuel, but also greatly improve the degree of atomization of the fuel. Therefore, only a very short time after start-up, the speed of the machine can stabilize and the vehicle can immediately drive. Truth 1: Waste of gas. I stopped there and burned 10 minutes of idle gasoline. It was no different from the traffic jam in peacetime. Truth 2: It is easy to produce more wear on the engine. Many people think that the hot car will make the engine fully lubricated. In fact, the local hot car will only make the engine temperature rise slowly. The main wear of the engine comes from the cold start. The local hot car will not produce good results for the running mechanism and the engine. The lubrication function will not allow the driving system to enter into a fully-lubricated state. Therefore, the long-term local hot car does not have an effective protection of the engine. Instead, the health of the engine is compromised. Insufficient combustion from the local hot car can also lead to an increase in carbon deposition. Truth 3: Contaminate the air. Because the three-way catalytic converter is unable to reach the normal working temperature when the idling hot car is in place, such harmful gas can not be effectively purified, and environmental protection is practiced. Everyone is responsible for... What is the engine doing when it is hot? As long as the engine is running, all internal parts of the engine will be fully moved and the oil will be pumped from the oil pump at the moment of ignition, and will continue to circulate in the engine for cooling and lubrication. However, when the temperature is low, the viscosity of the oil will be large, and it takes a cycle time of about 20 seconds. Other parts to be “hot†are the fuel injection system and the coolant, but this is also possible to cycle in place in half a minute to one minute. Even in the low temperature environment in winter, a 1-minute hot car is enough, and it is not necessary after 1 minute. If you plan to rely on the original speed to reach the standard value of speed and water temperature, I am afraid that 10 minutes can not be done. About cold start wear: We all know that the most important source of engine wear is cold start wear, rather than normal wear and tear, cold start. Because the engine oil temperature is low, the engine oil temperature is low, and the fluidity is good. Most of the oil slips to the oil pan under the action of gravity, and the friction surface of the moving parts absorbs a very thin layer of oil film. At present, the protection of the cold start that many oil manufacturers are emphasizing is the effect of this oil film. However, with the increase of cold time, for example, after a few days of stopping, the film will gradually become thinner and the strength will decrease. At this time, the moving parts will be in dry friction or boundary lubrication state, and when it is started again, the oil pump and the movement The simultaneous operation of the components causes the oil supply to lag, and the originally thin oil film is destroyed by the relatively moving components. If the original hot car is continued at this time, the wear of the components will only be accelerated. In fact, the hot cars at the time of parking can usually only increase the temperature of the engine, but other parts are still in a cold state. The hot wheels of the drive system are more important than the hot wheels of the engine, but if the drive system is not running, The engine is difficult to quickly enter the working state. Here's a life-giving example: When replacing antifreeze, many auto repair unions are in the car and sit waiting for the electronic fan to turn on. If you look carefully, you will find that the temperature of the water is warmed up by constant oil pressure in situ. The time required for the working temperature is much longer than the time you usually drive the car up to warm up. This situation shows that although the engine has been in normal operation after starting, but the car did not get up, many parts, many lubrication systems, including transmission oil, are not properly lubricated, "so the car itself and It's not hot, it's just the engine is hot." The lubrication system doesn't get going and there's no protection. We want hot cars, not hot engines You should do this: In most cases, you only need to stay for 10 seconds to 30 seconds after driving, even if the winter does not need more than 2 minutes! This time is just enough for you to fasten the seat belts and get your hands on the steering wheel. After that, you can drive the vehicle out and take a low speed/idle speed. After the speed is stable, you can speed up. Only the car can get up. , In order to quickly enter the working state, during this period, do not control the rotation speed more than 2,000 rpm, gentle shifting and stable refueling, this is the most standard and correct "hot car method." Features editor Barmac Rotor Tip,Vsi Crusher Rotor Tip,Vsi Crusher Rotor Tip Set,Barmac Wear Parts Ma An Shan Shi Bo Da Jing Shen Machinery Co.,ltd , https://www.bodamachinery.com
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3, with a crushing, coarse grinding function.
4, through non-broken material capacity, little affected by material moisture affect moisture content of up to 8%.
5, be broken in the hard, special hard material (e.g., alumina, sintered bauxite, etc.).
6, the product was a cube, a small iron pollution.