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汽车专业英语——Engine Terms（发动机术语）) q3 v0 V1 c6 y J
:cool: Engine Terms（发动机术语）3 e P5 d v1 n2 u5 }2 V
TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft., G6 e* }; X) z3 j
TDC (上止点) - 当活塞离曲轴最远时，曲柄和活塞的位置。
, N& F; D' }- k: d- T BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.
4 b5 ?; @+ x4 X) v5 f6 q8 K BDC (下止点) - 当活塞离曲轴最近时，曲柄和活塞的位置。' a6 I) m. r' L
stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.
) S8 f6 W4 A! N: a# U9 x 行程 - 下止点和上止点之间的距离；行程由曲轴控制。
5 r$ R" P. p4 ]3 F bore ― the internal diameter of the cylinder.
. k- _" U q8 D0 A6 A* { 缸径 - 汽缸的内径。* x& W" s3 G: Z2 |! s8 n1 X1 Q( W) P
swept volume ― the volume between TDC and BDC.
( ?$ m5 C v: J+ K 有效容积 - 上止点和下止点之间的体积。% Z) R) y- H9 S+ q8 ^7 W) O% b
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)
: w8 l# Q% h$ _" J9 e5 n; ^ has a cylinder swept volume of 500 cm3.
5 K0 r& m9 v, S 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。
: }. c. {6 [5 f clearance volume ― the volume of the space above the piston when it is at TDC.$ h& z5 e8 p- ~3 L3 K
间隙容积 – 当活塞位于上止点时，活塞顶上面的气缸空间。% d' f3 Q) n$ c# K- F0 e3 X
compression ratio = (swept vol + clearance vol)/(clearance vol)' i. v! S/ a& B; a
压缩比 = ( 有效容积 + 间隙容积 ) / ( 间隙容积 )) {& n; c* z P0 T* M, A: u9 N7 g
two-stroke ― a power stroke every revolution of the crank.
# S! u i+ Y9 c; K2 T) i 二冲程 – 曲柄旋转一圈作功一次。
! {2 E1 w7 I3 }! f5 p {, y2 U$ ^ four-stroke ― a power stroke every other revolution of the crank.
: H! [ ?) t6 t- p6 H0 Q2 y3 } 四冲程 - 曲柄旋转两圈作功一次。 |
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发表于 2009-5-18 11:45:50