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    保養過后油耗升高是哪些地方出了問題?

    來源:http://www.philiprobert.com發布時間:2020-09-26 16:03:06

    其實上述情況的發生并不是個例,很多車主都會遇到類似情況,而造成上述情況發生的“罪魁禍首”基本就是機油、節氣門、火花塞、空氣濾芯等。
    In fact, the occurrence of the above situation is not an example, many car owners will encounter similar situations, and the "culprits" causing the above situation are basically engine oil, throttle, spark plug, air filter element, etc.
    NO.1:機油粘度未穩定
    No.1: oil viscosity is not stable
    在車輛保養時,如果仔細觀察過從油底殼放出的舊機油,那你一定會發現舊機油除了顏色比較深之外,其流動性是比較好的,相比之下,同款新機油會表現的更加粘稠一些,流動性稍弱于舊機油。
    During vehicle maintenance, if you carefully observe the old oil discharged from the oil pan, you will find that the old oil has better fluidity in addition to its darker color. In contrast, the same new oil will be more viscous and its liquidity is slightly weaker than the old oil.
    同款的新機油比舊機油更加粘稠是很正常的現象。這是因為新機油在加注到發動機后,由于發動機運行施加給機油的擠壓、拉伸甚至剪切的力量,致使機油內部分分子的結構遭到破壞,粘度降低。曾經有機構針對機油粘稠度做過此類試驗,其結果顯示新機油在前6個小時之內,粘度下降30%左右(100℃時),25小時后,粘度值趨于穩定。
    It is normal that the new oil of the same model is more viscous than the old one. The reason is that after the new oil is filled into the engine, the structure of some molecules in the oil is destroyed and the viscosity is reduced due to the extrusion, stretching and even shearing force exerted by the engine running. The results show that the viscosity of new engine oil decreases by about 30% in the first 6 hours (at 100 ℃), and then tends to be stable after 25 hours.
    機油粘稠度越高,發動機運行阻力便越大,其油耗升高也是必然現象,而隨著機油粘稠度下降,阻力減小,油耗自然而然也就會下降。只要加注合格的同款機油,便不會對發動機壽命產生影響。
    The higher the oil viscosity, the greater the running resistance of the engine, and the increase of fuel consumption is also an inevitable phenomenon. With the decrease of oil viscosity and resistance, the fuel consumption will naturally decrease. As long as the same qualified oil, it will not affect the life of the engine.

    濟南寶馬汽車保養
    NO.2:機油加注過多
    No.2: excessive oil filling
    或許很多人認為,機油作為潤滑、清潔、冷卻發動機最重要的物質之一,理應是多多益善,可事實并非如此
    Perhaps many people think that oil, as one of the most important substances for lubricating, cleaning and cooling the engine, should be more beneficial to the better, but this is not the case
    機油加注過多,致使曲軸被機油淹沒,在發動機工作時,曲軸的運行阻力增大,同樣也會導致油耗變高。同時過多的機油也會增大活塞環的密封壓力,致使更多的機油竄入燃燒室參與燃燒,增加缸內積碳的同時也會對尾氣排放管中的各類過濾凈化設備和傳感器的壽命產生影響。
    When the engine is working, the running resistance of the crankshaft will increase, which will also lead to higher fuel consumption. At the same time, too much oil will also increase the sealing pressure of piston ring, causing more oil to rush into the combustion chamber to participate in combustion, increase the carbon deposition in the cylinder, and at the same time, it will also affect the service life of various filtration and purification equipment and sensors in the exhaust pipe.
    導致此類情況發生的原因除了私自加注更多機油外,舊機油未排凈也是重要原因之一。通常來說使用抽油機抽取舊機油的效果要比打開有油底殼重力放油的效果更加徹底,如有條件,可以在保養時要求使用抽油機抽油。
    In addition to filling more oil privately, the old oil is not drained out. Generally speaking, the effect of using the pumping unit to extract old oil is more thorough than that of opening the oil pan for gravity drainage. If possible, the pumping unit can be used for pumping oil during maintenance.
    NO.3:節氣門未匹配
    No.3: throttle mismatch
    節氣門是安裝于進氣管道中的一道可控閥門,用于控制發動機的進氣量,被稱為發動機的咽喉。
    Throttle is a controllable valve installed in the intake pipe, which is used to control the air intake of the engine, which is called the throat of the engine.
    當發動機工作時,節氣門會動態保持開啟一定的角度,以維持發動機正常工作。而ECU也是根據節氣門的開啟角度自動匹配噴油量。隨著發動機的工作,在節氣門內部會沉積一定的積碳,為了保證正常進氣量,節氣門的“自動學習”功能便會自動調大開啟角度。而當我們清理節氣門積碳后,如果還保持先前的開啟角度,則會導致進氣量過大,發動機啟動抖動、加速無力、油耗升高甚至報故障燈等現象。
    When the engine is working, the throttle will be opened at a certain angle dynamically to maintain the normal operation of the engine. The ECU automatically matches the fuel injection quantity according to the throttle opening angle. With the engine working, a certain amount of carbon will be deposited inside the throttle. In order to ensure the normal air intake, the "automatic learning" function of the throttle will automatically increase the opening angle. However, if we keep the original opening angle after clearing the carbon deposits on the throttle, it will lead to excessive air intake, engine start jitter, weak acceleration, increased fuel consumption and even fault light.

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