[轉(zhuǎn)帖]汽車專業(yè)英語——Engine Terms（發(fā)動機(jī)術(shù)語

lisong8891

汽車專業(yè)英語——Engine Terms（發(fā)動機(jī)術(shù)語）

:cool:  Engine Terms（發(fā)動機(jī)術(shù)語）     TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft. 9 X- O2 |* M3 d$ v7 z% d; _. g    TDC (上止點(diǎn)) - 當(dāng)活塞離曲軸最遠(yuǎn)時，曲柄和活塞的位置。     BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.     BDC (下止點(diǎn)) - 當(dāng)活塞離曲軸最近時，曲柄和活塞的位置。 : i( t. `/ R% S    stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.     行程 - 下止點(diǎn)和上止點(diǎn)之間的距離；行程由曲軸控制。 ( O4 I1 x9 o! |! r    bore ― the internal diameter of the cylinder. 0 j! f7 l4 w) P( D    缸徑 - 汽缸的內(nèi)徑。     swept volume ― the volume between TDC and BDC.     有效容積 - 上止點(diǎn)和下止點(diǎn)之間的體積。 4 C; z% Z( M; N$ w9 S    engine capacity ― this is the swept volume of all the cylinders, e.g. a four-cylinder engine having a capacity of two liters (2000 cm3)     has a cylinder swept volume of 500 cm3.     發(fā)動機(jī)排量 - 這是全部汽缸的有效容積，例如一臺排量為兩公升(2000 cm3)的4個汽缸的發(fā)動機(jī)每一個汽缸的有效容積為500 cm3。     clearance volume ― the volume of the space above the piston when it is at TDC. / l8 @0 H( Z9 p) N- b- E) ]- b8 C( j    間隙容積 – 當(dāng)活塞位于上止點(diǎn)時，活塞頂上面的氣缸空間。 3 G/ Q9 _* _) N2 t* T* A! C    compression ratio = (swept vol + clearance vol)/(clearance vol) / P5 G6 G+ G/ z/ U& i' i/ B    壓縮比 = ( 有效容積 + 間隙容積 ) / ( 間隙容積 )     two-stroke ― a power stroke every revolution of the crank. & |% ]8 b$ t" Y5 {    二沖程 – 曲柄旋轉(zhuǎn)一圈作功一次。 % F; w' K1 i: ?    four-stroke ― a power stroke every other revolution of the crank.     四沖程 - 曲柄旋轉(zhuǎn)兩圈作功一次。