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汽车专业英语——Engine Terms(发动机术语)8 x. G# r3 J1 o- t# w+ D1 I% E
:cool: Engine Terms(发动机术语)
8 i4 X; c0 t( J6 k7 } TDC(top dead center) ― the position of the crank and piston when the piston is farther away from the crankshaft., R/ v2 s# l) u' _5 E4 p. F
TDC (上止点) - 当活塞离曲轴最远时,曲柄和活塞的位置。
" |& F1 q0 j0 U- M5 k7 S BDC (bottom dead center) ― the position of the crank and piston when the piston is nearest to the crankshaft.9 Y" j% U6 H0 r) X# P' w1 J
BDC (下止点) - 当活塞离曲轴最近时,曲柄和活塞的位置。
9 J! c* y+ V. _+ f9 R stroke ― the distance between BDC and TDC; stroke is controlled by the crankshaft.
/ R8 w; L/ O7 J" p4 B5 ^5 \ 行程 - 下止点和上止点之间的距离;行程由曲轴控制。
: w( o! d2 J. l; i bore ― the internal diameter of the cylinder.
# P2 k) A5 i" J+ X/ h5 s& |- H$ { 缸径 - 汽缸的内径。
. c( S, n! G7 l4 Q ? swept volume ― the volume between TDC and BDC.6 B4 R0 ~$ x9 T
有效容积 - 上止点和下止点之间的体积。
! |4 D$ o5 s& N3 T- E( T. D 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)
! J/ T& T" M K6 y has a cylinder swept volume of 500 cm3.) q4 p* p* j# J; @6 F3 s: v
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。
5 o/ [( J% c/ v: F) f; d clearance volume ― the volume of the space above the piston when it is at TDC.
. F( ^$ |) _) j; @, S: w 间隙容积 – 当活塞位于上止点时,活塞顶上面的气缸空间。
5 n% k+ r7 s& u8 ]* A compression ratio = (swept vol + clearance vol)/(clearance vol)
& ]6 X0 X+ e: T; A- c4 \ 压缩比 = ( 有效容积 + 间隙容积 ) / ( 间隙容积 )* ?; Y$ n$ b9 [4 A. o
two-stroke ― a power stroke every revolution of the crank.% o/ T- i! d9 \, X/ |6 F
二冲程 – 曲柄旋转一圈作功一次。
0 g3 j* G7 E" q* G/ i four-stroke ― a power stroke every other revolution of the crank.' X+ D n- f" y* A; a0 Y9 M
四冲程 - 曲柄旋转两圈作功一次。 |
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