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發表本文純粹抱著分享給網友的心態.如果有高手想要自己打造排氣管不仿參考看看.
諧振管 開發數據與資訊
中英文對照
Tuned Exhausts for 2-strokes
二行程諧振管
adapted from "The two-stroke tuners handbook"
二行程諧振管手冊
Note: Dimensions are in inches! All diameters are inside diameters. LT, L3 and L1 are measured from the cylinder wall, not from the exhaust flange!
注意:尺寸以英吋計!所有的直徑都在?? LT, L3 和L1是從氣缸外緣測量,而不是從排氣外緣.
. LT= (Eo * Vs)/N
Where
LT = tuned length in inches
LT =諧振管的長度(以英吋計)
Eo = Exhaust open period in degrees
Eo =排氣打開時的溫度
Vs = sonic wave speed (use 1700 ft/sec)
Vs =音波的速度(1700英尺/每秒)
N = Crankshaft speed, in RPM
N =機軸速度, 每秒轉速
D1 = stock lead-in pipe dia.
D1 =儲存導入氣管通道
D2 = SQR( 6.25 * D1 * D1 )
D3 = D1 * 0.62
L3 = D1 * 10
L7 = D3 * 12
L2 = (D2/2)*cot(A2)
L1 = LT - (L2/2)
L4 = ( (D2 - D1)/2 ) * cot(A1)
L5 = L1 - ( L3 + L4 )
L6 = ( ( D2 - D3 )/2 ) * cot(A2)
A1 = half diffuser-cone angle of divergence (see below)
A1 =外擴圓錐分歧角
A2 = half baffle-cones angle of convergence (see below)
A2 =漸縮圓錐反射角
Notes:
注意:
Centreline length of curved pipe:
曲線氣管的中線長度:
L=R*0.01745*angle of bend
L=R*0.01745*彎曲角度
The 2 stroke book says because of testing, an 8 degree angle of divergence for the diffuser cone connected to the lead in pipe is the minimum angle to start with and 20 degrees for the compression cone at the other end of the pipe is a good starting point.
二行程手冊測試,一個八度的漸縮圓錐反射角,連接導入氣管通道,是一個極小的開始角度,以及20度的壓縮圓錐在氣管的另一結束端,是一個好的開始.
| Solo 210
N=6300
Eo=180
LT=48.57
D1= 1.44
D2= 3.6
D3=0.89
L7=10.7
L3=14.4
L2=10.2
L1=43.5
L4=15.44
L5=13.63
L6=7.68
A1=4 degrees
A2=10 degrees
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Useful cotangents (degrees) 附表(度)
cot 3.0 = 19.0811 cot 5.5 = 10.3854 cot 8.0 = 7.11537 cot 11.0 = 5.14455
cot 3.5 = 16.3499 cot 6.0 = 9.51436 cot 8.50 = 6.69116 cot 12.0 = 4.70463
cot 4.0 = 14.3007 cot 6.5 = 8.77689 cot 9.00 = 6.31375 cot 13.0 = 4.33148
cot 4.5 = 12.7062 cot 7.0 = 8.14435 cot 9.50 = 5.97576 cot 14.0 = 4.01078
cot 5.0 = 11.4301 cot 7.5 = 7.59575 cot 10.0 = 5.67128 cot 15.0 = 3.73205
[ 本帖最後由 dvd30370 於 2006年9月30日 04:11 AM 編輯 ] | 
發表於 2006年9月30日 03:43 AM
