| :cool: Engine Terms（發動機術語）) N! Q& ?( j1 i$ i( q TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft. TDC (上止點) - 當活塞離曲軸最遠時，曲柄和活塞的位置。3 g8 w; g- S9 t BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.+ G+ {5 M+ Q) k8 F. k" g A" P BDC (下止點) - 當活塞離曲軸最近時，曲柄和活塞的位置。$ @1 f+ p5 A( K V" g4 `4 c! O stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.1 k" a9 N" Q9 h5 t# u 行程 - 下止點和上止點之間的距離；行程由曲軸控制。1 V) J8 P6 S) F; q3 X8 R9 x! R' v bore ― the internal diameter of the cylinder. 缸徑 - 汽缸的內徑。$ v8 E' U) U1 {7 z0 N& t% e swept volume ― the volume between TDC and BDC.. `) T5 D4 J4 Z- ]" S! T' | 有效容積 - 上止點和下止點之間的體積。+ V6 a' g; R' @) D' Z0 g 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)( [, m% i' u- G6 g) Y has a cylinder swept volume of 500 cm3.4 c+ F. D. o; Q' M/ | 發動機排量 - 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個汽缸的發動機每一個汽缸的有效容積為500 cm3。3 B; k* Y5 g- s' V3 C clearance volume ― the volume of the space above the piston when it is at TDC.9 T0 M: k: U. E: l n 間隙容積 – 當活塞位于上止點時，活塞頂上面的氣缸空間。3 h, V3 x9 d1 J) H0 ~: ^ compression ratio = (swept vol + clearance vol)/(clearance vol)( |* u: F5 d( _6 ?2 N 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.3 E. n8 C, c4 {) X) e 二沖程 – 曲柄旋轉一圈作功一次。8 [6 N$ L- m3 h$ x& T# e four-stroke ― a power stroke every other revolution of the crank./ v( u- M. e, y0 b4 z& M 四沖程 - 曲柄旋轉兩圈作功一次。 |
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