机械增压发动机和涡轮增压有何区别?分别有何优点和缺点?还有就是汽车排量T和L这两个单位有何区别?

2025-03-15 16:57:21
推荐回答(2个)
回答1:

  机械增压器的动力来自与发动机连接的转动皮带,而涡轮增压的动力来自于发动机排出的废气。
  机械增压器的缺点就是需要消耗发动机的额外动力,增压效果有限,尤其是在高速状态下,这将变成负担,而且噪音大。优点是没有涡轮迟滞,低转速就有效果。
  涡轮增压的缺点是有涡轮迟滞,在低转速下增压效果不明显。优点是其不消耗发动机的额外动力,增压效果明显。

  一般来讲,T就是指该发动机装备了涡轮增压器,L则为纯自然吸气发动机,其后面的数字意义是一样的,都是代表其排量水平。比如1.5T和1.5L,都是代表该发动机的排量为1.5升,不同的是前者配备涡轮增压器。L其实就是体积“升”的单位。

  一般来讲,同等排量下,配备涡轮增压的发动机,其动力会提升30%以上。比如,1.5T发动机的最高动力水平将会超过2.0L自然吸气的发动机,但其油耗却是1.5L的水平。当然,比较差的涡轮增压发动机另当别论。

回答2:

T是涡轮增压,L是自然吸气,机械增压是涡轮增压的一种方式,机械增压涡轮介入比较早

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