请教涡轮发动机的问题

gstudy

菜鸟问几个科普问题以长见识并今后选车参考，请各位大侠指点迷惊。叩谢！
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5 C5 ]+ s) n1 s" S7 m  \1）过去听说涡轮发动机费油而且温度高散热慢，维修费用高，对吗？

' F; K, v" i9 p4 V  R6 K; J' y% u2）现在看到很多新车都采用涡轮发动机，是因为它功率大？效率高？比过去的机器改进多了？？？？？？
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3）到底涡轮机与其它汽车发动机有什么根本的区别？选蜗轮的核算吗？

恭候指点。

candy09

瞎说两句，涡轮发动机 就是 带了涡轮增压器，
简单地说就是就是多了个涡轮，增加进气量，能增加马力什么的。
费油看怎么比，应该比同等马力V6省油，，但是会热。
+ Y4 v/ ]# W% G3 c3 F6 I9 H同排量的话， 涡轮增压的马力大，动力足。
0 s; R  M+ a% a7 C* s缺点 起步不平稳，发动机寿命短。这个技术是个趋势。
- }3 [) Z4 F  y3 p! T' S3 yv6的机器一般马力都还可以 ，噪音小，转速低，平稳流畅。
# g1 }& a  S  [  Y3 O3 ?发动机寿命长。
$ N' Q6 C3 B$ h5 I1 B: d但是 v6有个坏处 排量无法做小。

gstudy

candy09 发表于 2015-8-27 22:29
# B; ~5 j7 H! K* O2 B( h1 r瞎说两句，涡轮发动机 就是 带了涡轮增压器，
简单地说就是就是多了个涡轮，增加进气量，能增加马力什么的 ...

4 d! t3 P4 b+ D6 H2 d& \谢谢您的解释！继续等看更多的指教。

Terminator

Turbo engine not efficient as regular engine, more problem too

gstudy

Terminator 发表于 2015-8-27 23:14
. N% R/ z: p' P; B+ [Turbo engine not efficient as regular engine, more problem too

% c1 D9 X1 R6 \这是我一直听到的说法。可是我不明白为什么现在涡轮机的车好像越来越多了？

candy09

gstudy 发表于 2015-8-28 09:56
2 x$ o2 c1 N- ^5 G6 R( [' X& S这是我一直听到的说法。可是我不明白为什么现在涡轮机的车好像越来越多了？

涡轮机是个趋势，具体为什么，不是业内人士，不清楚。
% W$ @& z+ t& S) x我自己的理解就是，涡轮机排量小，这个很关键，少污染点空气，肯定是好的。
4 L& L. V) J; U7 M1 A然后技术在成熟一些，那是极好的。

JZ9633

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, D  P3 ]5 E5 e+ V! c- t涡轮机的工作原理很复杂, 不过简单地讲,  涡轮机在汽车引擎中，通过利用排出的废气的热量及流量，有效地提升发动机的马力输出，因此降低油耗及废气排放。
虽然涡轮机有很多优势，但是如果增压器损坏会造成发动机起火 ，引发安全问题。

TGIF

My two cents...
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1）过去听说涡轮发动机费油而且温度高散热慢，维修费用高，对吗？Generally yes. Today's turbos have been remarkably improved. The traditional issues with over-heating and frequent repair have been greatly alleviated. However, generally speaking, compared to NA engines, turbos still need more attention which leads to (slightly) higher repair and operating cost.

, q7 ~# ]  s; M  t" q1 n2）现在看到很多新车都采用涡轮发动机，是因为它功率大？效率高？比过去的机器改进多了？The regained popularity of turbo is driven primarily by the ever increasingly stringent emission standards and consumer demand. Consumers, more than ever, demand for more power and faster acceleration. The government, however, requires less and less emission which naturally translates into smaller displacement in engines (some countries impose taxes based on the engine displacement). Turbo-engined vehicles meet both goals reasonably well.
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# W3 P: B5 A( l3）到底涡轮机与其它汽车发动机有什么根本的区别？选蜗轮的核算吗？The tangible differences are of course the presence of turbo charger, and a higher purchase price compared with a car having an equal-displacement naturally-aspirated engine.
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6 z% h+ r" Z; S- e: q! T+ |Is turbo engines the panacea? I doubt. Is a turbo-engined car more fuel efficient than a naturally-aspirated car with the same horsepower? Not necessarily. An example is Mitsubishi Lancer Evo (2.0L turbo) versus Infiniti G37 (3.7L V6 non-turbo). Believe or not, the Evo MR is less fuel efficient than the G37, both in the city and on the highway.
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/ q5 f* U5 e$ t  j  BRegardless of the fuel efficiency and price and O&M cost, some people like turbo, some people don't. This will be the case for a long time.

gstudy

TGIF 发表于 2015-8-28 12:23
My two cents...

( C  ^- U* L/ Z) \1）过去听说涡轮发动机费油而且温度高散热慢，维修费用高，对吗？Generally yes. Today ...

7 ]; N1 E! d) g% x2 y2 y& F  j2 zwhat does "engine displacement" mean? thanks!

TGIF

gstudy 发表于 2015-8-28 12:55
$ y$ u# C; v; d, x. F8 Q0 U* rwhat does "engine displacement" mean? thanks!

Sorry I can't type Chinese here but I found the Chinese characters on the internet...It means 发动机排量

gstudy

TGIF 发表于 2015-8-28 13:03
Sorry I can't type Chinese here but I found the Chinese characters on the internet...It means 发动 ...

' |: K  E& F2 T5 R是的，我也找到了，就是这个意思。感谢！

gstudy