原帖由 KT6487 於 2009-8-10 20:20 發表 
其實一直以黎...
好多人同網頁都話用Cummins 6BT 引擎ge Dart 仔馬力係145匹....
究竟係咪真的....?
我成日諗...雖然6BT 有Turbo je...
但有乜可能一架Full load 過10噸ge 巴士....
用副5.5噸貨車同級ge Engine 呢. ...
What's that special?
Dennis Dart was originally designed as a midibus with a length of 9m (filling the gap
between van-based minibus and full size single-decker).
Also, the 'Dartmasters' are also powered by ISBe engines. |
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原帖由 kmb_gu657 於 2009-8-10 22:12 發表
What's that special?
Dennis Dart was originally designed as a midibus with a length of 9m (filling the gap
between van-based minibus and full size single-decker).
Also, the 'Dartmasters' are also ...
我問返一D 師兄...終於知道個答案了....
原來6BT 得12Valve....細Turbo....所以咁...
好彩而家改左做24valve 同大Turbo ge ISBe ...
所以勁返..... |
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托運服務....Scania R620 6x4
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其實我都好想問引擎容積越大，
係咪代表會大力D？
會唔會食多D油？ |
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原帖由 dennis-ying 於 2009-8-10 22:54 發表
其實我都好想問引擎容積越大，
係咪代表會大力D？
會唔會食多D油？
引擎容積越大.....耗油量當然多D la...
而且個低轉ge 扭力應該有返咁上下的....
但而家技術好左....唔需要容積大都有大馬力 , 大扭力....
所以巴士公司會選用細容積但有大馬力 , 大扭力ge 車....
盡量減低個耗油量....
有錯請指正~~!! |
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托運服務....Scania R620 6x4
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原帖由 KT6487 於 2009-8-10 21:46 發表
下....原來係得107KW gar ja....=.=
145ps 仲要推冷氣....
實際落倒轆ge ...分分鐘咪得返110ps 倒..@@
真係唔怪得Dart 仔上斜少少ge 路都蝸牛爭扎咁la....
Cunnins 6BT ....6 Cylinder 5.9L 竟然得145ps...
呢副Eng ...
鐵牌應該係寫 104KW |
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原帖由 KT6487 於 2009-8-10 15:07 發表
引擎容積越大.....耗油量當然多D la...
而且個低轉ge 扭力應該有返咁上下的....
但而家技術好左....唔需要容積大都有大馬力 , 大扭力....
所以巴士公司會選用細容積但有大馬力 , 大扭力ge 車....
盡量減低個耗油量 ...
That is not an absolute case at all.
Putting a turbo on a smaller engine is not a miracle cure - it uses just as much, or in some cases, more fuel to drive the turbo, and most importantly the power/torque doesn't kick in as quickly because of turbo lag. Another example I can think of is Volvo'd D9B-260 engine. It powers the 2-axle B9TL and returns (from what I read) around 6 miles per gallon (~0.45L/km) on fuel consumption whilst the 6-cylinder ISBe enginer, with 2/3 the capacity and powering the lighter E400, returns just 4 mpg (~0.7L/km).
Large engines can achieve better fuel economy by simily derating it to a lower power output, and that is the approach which Mercedes Benz, MAN and the old Gardner take. To put it into perspective, the good old Gardner 6LXB engine, at 11L, on an Olympian or Metrobus is capable of a fuel consumption figure of around 9mpg (0.3L/km). |
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Tinyl Bus Photography - FB Group
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原帖由 KT6487 於 2009-8-10 21:49 發表 
但你有見過邊款車馬力細...但扭力大gar 呢...?
馬力同扭力應該成正比gar wor....
但引擎容積就唔一定....
我唔直接答你, 我用例子答你
一部勝利二型拖車有180匹HP
一部跑車有300匹HP
勝利二型拖車可以輕易拖走部300匹既跑車,
你估部300匹既跑車可唔可以拖郁部勝利二型拖車?
上面講左咩野, 自己參透下 |
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搭單 1 問...
珀記果 d 歐 3 Dart 既馬力係幾多 ?? thanks~ |
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原帖由 gaupost 於 2009-8-11 06:34 發表
我唔直接答你, 我用例子答你
一部勝利二型拖車有180匹HP
一部跑車有300匹HP
勝利二型拖車可以輕易拖走部300匹既跑車,
你估部300匹既跑車可唔可以拖郁部勝利二型拖車?
上面講左咩野, 自己參透下 ...
咁樓上明顯係講緊同一種Range既引擎
而且一副用柴油一副用汽油邊有得比 |
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原帖由 3ASV467 於 2009-8-11 12:12 發表
咁樓上明顯係講緊同一種Range既引擎
而且一副用柴油一副用汽油邊有得比
應該用返汽缸都係長衝程對長衝程來比較好 D... |
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