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汽车专业英语——Engine Terms(发动机术语)5 A0 _9 E+ W) V- s1 u: P
:cool: Engine Terms(发动机术语)
7 D- l/ K+ F; O. F6 Z8 Z5 f7 ` TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft.4 ~% Z" p; Z$ Y; P( L. ~
TDC (上止点) - 当活塞离曲轴最远时,曲柄和活塞的位置。% |( Y- Q. L7 c' \* f6 X+ |% ?
BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.' t+ C7 h) l& O. @( _
BDC (下止点) - 当活塞离曲轴最近时,曲柄和活塞的位置。% G" W# T3 R- x6 T
stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.
. m* s) f: P f" L1 K" @. R 行程 - 下止点和上止点之间的距离;行程由曲轴控制。) @& B' _, P7 Z* @ b
bore ― the internal diameter of the cylinder.# D# R3 k+ ~. N9 p& [% Y, W# C
缸径 - 汽缸的内径。
% p6 ?! Y* A, B2 T @6 q swept volume ― the volume between TDC and BDC.% q: e0 W0 r% q, z( w+ i
有效容积 - 上止点和下止点之间的体积。' r4 n7 N2 a% D( T" b. H
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)* q4 b8 @# X4 q. b6 D( {( h: v- Z2 I
has a cylinder swept volume of 500 cm3.
. l1 L% G; L$ c+ r& 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。
0 d5 S) p; r% ?+ W clearance volume ― the volume of the space above the piston when it is at TDC.
. P, @( V/ _8 [$ L$ y1 W1 z* l 间隙容积 – 当活塞位于上止点时,活塞顶上面的气缸空间。
; b1 f7 ?6 V" i. A8 c+ y9 h6 ^ compression ratio = (swept vol + clearance vol)/(clearance vol)- D, H3 l. R& t& }- E- I- D
压缩比 = ( 有效容积 + 间隙容积 ) / ( 间隙容积 )
/ r" p: Y& h+ E) v2 `! S* W two-stroke ― a power stroke every revolution of the crank.* H2 P, E E8 H6 S S! V% Q* m! h
二冲程 – 曲柄旋转一圈作功一次。
! h' y9 X' C* y; o; O$ h+ ^ four-stroke ― a power stroke every other revolution of the crank.
% v& q8 F" t V 四冲程 - 曲柄旋转两圈作功一次。 |
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