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汽车专业英语——Engine Terms(发动机术语)9 q1 j, w$ O: m" d) Y
:cool: Engine Terms(发动机术语)) b9 R. J. R% A, n
TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft.# ?: D* J/ M9 E
TDC (上止点) - 当活塞离曲轴最远时,曲柄和活塞的位置。: b0 E' \* C' ?/ x; |
BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.
* q1 C) j2 R# R6 y- u2 b1 J4 I BDC (下止点) - 当活塞离曲轴最近时,曲柄和活塞的位置。( d1 m) b% ? s) T6 \7 X2 l$ x
stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.( T. z; p% i! p. C3 S
行程 - 下止点和上止点之间的距离;行程由曲轴控制。
' W# e$ D3 V/ k- g bore ― the internal diameter of the cylinder.
) k3 X' \) a- k: x 缸径 - 汽缸的内径。
1 R; g; P% i: z) E8 v1 U swept volume ― the volume between TDC and BDC.5 G& E2 ?! {* n& x2 B' G
有效容积 - 上止点和下止点之间的体积。
& X5 k+ F5 t1 q 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)
/ V! \8 h1 V; d `/ l; E" L has a cylinder swept volume of 500 cm3.2 d% U0 R w; h
发动机排量 - 这是全部汽缸的有效容积,例如一台排量为两公升(2000 cm3)的4个汽缸的发动机每一个汽缸的有效容积为500 cm3。2 H( T/ n6 q3 b! Q3 K
clearance volume ― the volume of the space above the piston when it is at TDC.
* w# e. f7 ^% v( h+ m9 G 间隙容积 – 当活塞位于上止点时,活塞顶上面的气缸空间。+ Q% M" f7 h6 s! s. r
compression ratio = (swept vol + clearance vol)/(clearance vol)
1 e- L, s* I% c! h1 ] 压缩比 = ( 有效容积 + 间隙容积 ) / ( 间隙容积 )
* z' q. x2 \# M4 q' L4 P two-stroke ― a power stroke every revolution of the crank.% \8 r6 M' `! Q/ X# Z/ }- H) i
二冲程 – 曲柄旋转一圈作功一次。
* D1 m: d8 R" C" Z' b four-stroke ― a power stroke every other revolution of the crank.) a' a i/ X j& X3 h5 c
四冲程 - 曲柄旋转两圈作功一次。 |
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