汽車預熱需要多長時間？

來源：http://www.philiprobert.com發布時間：2021-06-10 17:03:53

正常情況下，原地怠速熱車時間一分鐘左右即可。等轉速到達800轉左右時，或是水溫到達正常值，即可根據自己的駕駛習慣行車。在這之前，不要猛踩油門或是劇烈駕駛。也不要開室內的熱風，開室內熱風會延長發動機升溫時間。
Under normal conditions, idle in place and warm up for about one minute. When the speed reaches about 800 rpm, or the water temperature reaches the normal value, you can drive according to your driving habits. Before that, don't step on the gas or drive hard. Do not turn on the hot air in the room, which will prolong the heating time of the engine.
正常情況指的是：平常按時保養、加的油是正規加油站的油、機油為適合發動機的機油。
The normal situation refers to: regular maintenance on time, the oil is regular gas station oil, engine oil is suitable for the engine oil.
車子經過長時間的停放，引擎內的機油因為地心引力的原因，全部流到了引擎下部的機油底殼內。引擎的上半部是處于沒有機油，缺乏潤滑的狀況。而引擎在未達工作溫度之前（大約在攝氏90-110度之間），其供油系統因溫度尚低，均無法有效地將汽油完全氣化。

                            
After parking for a long time, the oil in the engine flows into the oil pan at the bottom of the engine due to gravity. The top half of the engine is in a state of no oil and no lubrication. However, before the engine reaches the working temperature (about 90-110 ℃), its fuel supply system can not effectively gasify the gasoline completely because of its low temperature.
熱車是非常重要的，不是原地怠速熱車，而是行駛后的慢速行駛。因為原地怠速熱車只有引擎在動，其余部份都沒在動。特別是變速箱齒輪的潤滑，只有當行車時才會因齒輪的運轉而將底部的齒輪油帶起，潤滑上半部。
Hot car is very important, not idle hot car in situ, but slow driving after driving. Because the hot car idles in place, only the engine is moving, and the rest of the car is not moving. Especially for the lubrication of transmission gears, only when driving will the bottom gear oil be brought up to lubricate the upper part due to the operation of gears.
并且現在的發動機一般啟動后20--30秒，機油就會把發動機各個潤滑表面走一遍。所以說，過長時間的怠速熱車，除了增加耗油量和積炭外，也不利于環保。
And now the engine is generally started 20-30 seconds, the engine oil will go through all the lubricating surfaces. Therefore, long idle hot car, in addition to increasing fuel consumption and carbon deposition, is not conducive to environmental protection.