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Turbocharged gasoline engine vehicle cooling system design and matching

Displacement fan, radiator and fan drag △ first class where the maximum allowable speed. According to the relevant formula,moncler paris, matching parameters are calculated, see Table 2. Table 2 match the parameters of the radiator fan and D / mmn ~ / (r · min) Qs / (ms) p / (m3.S) △ / kPa35047005.759.60.4 specific matching process is as follows: 1) determine the fan and cooling The match point R point (and △ by the values in the matching diagram can be determined.) 2) from the fan database, find the fan diameter D, a variety of fan speed is less than one curve, and the fan performance curve has a response curve through the R point. 3) to determine the matching fan and cooling system, points S points. Obtained by screening 3 to meet the requirements of the fan performance curve. As shown in Figure 5 to 7. It can be seen from Figure 5, A-type match point with the system fan speed is 2300r · rain ~, is less than n ~. 2300r · min corresponding to the power of 0.21kW, efficiency of 40%. It can be seen from Figure 6,ugg botas, B-match point with the system fan speed is 3000r · min ~,ecco shoes outlet, than any one. 3000r · min corresponding to the power of O_3kW, efficiency is 25%. It can be seen from Figure 7, C-type matching points with the system fan speed is 3500r · min ~, n is less than one. 3500r · min corresponding to the power of 0.2kW,ugg pas cher, efficiency of 30%. 4) compared. Results show that the lowest noise and efficiency, corresponding to the highest point,tory burch outlet, usually the highest efficiency as the optimal scheme. B-type fan efficiency of matching points lower than the A-type fans, and power consumption is large; C-type matches the speed of the fan is too high, noisy; and A-type fan speed matching points 2300r · min ~, rated power of 0.21kW, efficient 40%; So, ultimately determine the selection of A-type fan, the structural parameters shown in Table 3. Table 3A-type structure parameters of the fan motor 4 Conclusion of a turbocharged gasoline engine cooling system design and matching. Heat loss through the design of the cooling system, cooling water for a 22, a Hubei Automotive Industries Institute in December 2008 Zone 1 0l0 0 gluttonous animals. Anonymous 0: Tomb basket 03.06.09.0l2.0l5.0 displacement Q / (m3.5) O ≥ 00003.06.090l2. Ol50 share volume Q / (m3.s'') Figure 5A match-type fan and system diagram 0 ≥ 0 0 Ray O03.06.09.012.015.003.06.09.0120150 瓣 displacement Q / (m . s'') holding gas al, (m '. s.') 03.06090l2.0l5.0 holding volume Q / (m3.s) Figure 6B-type fan and system to match the diagram O ≥ 0 Mount pour 0003.06 .09.0 l20l5.0 holding volume Q / (m3.S) Figure 7C-based graph matching fan and system capacity and the amount of cooling air to determine the heat sink and fan of the basic structural parameters; and using the database method of cooling system match. The cooling system design and prototype development and volume production for the match provided an effective basis.
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