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汽车专业英语——Engine Terms(发动机术语)
( S( U6 s% b3 t5 D:cool: Engine Terms(发动机术语)
( |* A- o, P2 b& A3 f3 Y TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft.
/ F- W, k) W% S, P8 Y& [ TDC (上止点) - 当活塞离曲轴最远时,曲柄和活塞的位置。. S9 s' Z/ c/ q6 [: d0 N: W
BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.
9 f4 M1 j2 K2 Z. x& b7 M* T' o, ] BDC (下止点) - 当活塞离曲轴最近时,曲柄和活塞的位置。7 X/ r) Z/ V; M: I7 G2 d2 E
stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.% {: r4 M3 ^1 q- n: C- f
行程 - 下止点和上止点之间的距离;行程由曲轴控制。
9 K7 ^7 R& K: D( @& M; O bore ― the internal diameter of the cylinder.
) a8 K" _8 s- v5 X1 V8 A 缸径 - 汽缸的内径。# P3 H! L; k$ ^7 p) ^! _; s
swept volume ― the volume between TDC and BDC.
* t& d2 v! B1 F& `; u/ ?* |( e. f 有效容积 - 上止点和下止点之间的体积。
: z0 q: L. S* @; Y5 { 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)' U5 K* u8 S0 o+ \1 o- \0 m
has a cylinder swept volume of 500 cm3.
2 f! }# n' L2 m, D 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。
, s+ C. K2 V; ~% W3 L7 A4 w clearance volume ― the volume of the space above the piston when it is at TDC.
# n6 N% R4 u" ?& V1 O 间隙容积 – 当活塞位于上止点时,活塞顶上面的气缸空间。2 f V. g7 y2 d
compression ratio = (swept vol + clearance vol)/(clearance vol)
0 f1 h, d1 F' z( r 压缩比 = ( 有效容积 + 间隙容积 ) / ( 间隙容积 )9 |$ y0 |; b% m3 E& \! n4 s, @( F
two-stroke ― a power stroke every revolution of the crank.
3 k5 W8 B! Q7 ]: ~( Z1 h8 t4 y 二冲程 – 曲柄旋转一圈作功一次。
" ^; B" U: g- U" w5 p7 V# {" [ a four-stroke ― a power stroke every other revolution of the crank.& W2 j) [% N. {) L+ b& ]' I% l
四冲程 - 曲柄旋转两圈作功一次。 |
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