Disadvantage 1: Consumption of gasoline. I stopped there and burned 10 minutes of idle gasoline. It was no different from the traffic jam in peacetime. Disadvantage 2: Carbon deposition. If the engine is incompletely burnt for a long period of idling operation, more carbon deposits will be produced. If the temperature is low, more will occur. Therefore, the long-term local hot car does not have an effective protection of the engine. Instead, the health of the engine is compromised. Drawback 3: Contaminate the air. Because the three-way catalytic converter is unable to reach the normal operating temperature when the idling hot car is in place, such harmful gas can not be effectively purified, protecting the air, everyone is responsible for... Principle: As long as the engine is running, all internal parts of the engine will be fully moved. The engine oil will also be pumped from the oil pump from the moment it is ignited. It will continue to circulate in the engine to cool and lubricate. 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. The only correct hot car mode: driving at low speeds. After half a minute to one minute after the hot car in place, the speed can be stabilized, you can go on the road, control the speed does not exceed 2,000 rpm, gentle shifting and stable refueling, which is the most standard and correct method of hot cars. Energy saving, environmental protection, and less carbon deposition. In fact, even in such cold weather as in winter, the local hot car only takes half a minute to one minute in winter. Longer time is not necessary, while other seasons can be shorter and travel at low speeds. Slow hot car is the only correct way Crane Parts: crane mainly includes lifting mechanism, operating mechanism, luffing mechanism, slewing mechanism, metal structure, etc. The hoisting mechanism is the basic working mechanism of the crane, most of which are composed of the hoisting system and the Winch, and some lift heavy objects through the hydraulic system. The traveling mechanism is used to move weights longitudinally and horizontally or adjust the working position of the crane. It is generally composed of motor, reducer, brake and wheel Crane Parts,Crane Parts for Sale,High Quality Crane Parts Eurocrane (China) Co., Ltd. , https://www.rope-hoist.com