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Experimental air compressor cylinder head of new energy-saving

Work characteristics, B 『periodic pulse from the gas chamber pressure. Gas chamber volume is too small, it will exacerbate the pulse amplitude, resulting in a large pulse of additional power consumption. [1] 2V for a 6 / 7 air compressor, pressure fluctuation export additional power AL / L. . (Additional power cycle power insulated with the level ratio) and relative air cavity volume. / V. (Gas chamber passenger volume and stroke volume ratio) of the relationship, noting that the effective volume of the exhaust chamber range. / V. = 3 ~ 5. According to the literature of [1] formula, depicts a 2V 2v a six-and a 0.6 / 7 for a two compressor-A AL / L. And. / V. The curve shown in Figure 9. Figure 0 shows, micro air days; machine, because of its pressure ratio ●, n prince Yu 9 relative to the exhaust chamber volume and additional work in the off tiny 1.2v-8 / 7 down 2.2v-o. 6,7 A-A large, smaller displacement, pressure, moving additional work by the amidine. / V. Impact than small compressor so serious. To 2v - 0.6 / 7 for the two one A-type air compressor, when the. / V-= 0. \3.3%. / V1.5 time, AL / L. = 2. While the 2v a 6 / 7 air compressor, when. / V = 1.1, the additional power AL / L. 7.8 can also be seen from Figure 0, miniature air compressor sail. / V. After more than 2, AL / L. With. / V. Thousands of peaceful change in that trend slowly. Therefore, mini air compressor, considering its structural features, the relative volume of the exhaust chamber. / V. Take l ~ l'5 is more appropriate. In order to expand 2v a 0.6 / 7, the exhaust air compressor chamber volume, the author of the structure shown in Figure 8,[link widoczny dla zalogowanych], were further improved. Since then the two exhaust chamber relative, so you can use the space between the two cylinder, two cylinder head connected with a buffer capacity, so that the two Mu directly connected to the exhaust cylinder head. Improved air compressor structure as shown in Figure lO 1O connected exhaust cavity Figure 1. Cylinder; 2. Wei speaker; 3. Cylinder head; 4. Rough body work together gas Mu l ∞ 3 years as the two head to the exhaust chamber is connected state,[link widoczny dla zalogowanych], the two cylinders are not the same time the exhaust, so the head can be interoperable exhaust chamber, so that the actual discharge of each cylinder head cavity volume than the original machine. / V = 0.75) to expand more than 3 times the performance test results show that the model shown in Figure l0 models than shown in Figure 8,[link widoczny dla zalogowanych], 2.05% lower than the power. (2) by changing the current mini air compressor air inlet position to reduce the compressor inlet temperature, the method is simple and energy-saving effect is remarkable. (3) appropriate to increase the exhaust cylinder head chamber volume, can reduce the pressure fluctuation additional power consumption. Mini air compressor chamber volume relative to the exhaust. / V take l ~ l_5 appropriate. 5 Conclusion (1) insulation board with a reasonable shape, can effectively block the exhaust gas into the cavity of the severe heat and improve the compressors' volumetric efficiency. A f \Air compressor declared the rational design of the exhaust valve. Fluid engineering I1984J (1) IS centrifugal pump and its system of population decay is too tiny swirl University of Tian Qing Li Ye Yun and Kowloon for a 7 a H bow J 』. Wang 2, one by one ~. _-, _L Abstract The Department jls Jing Shi Jing Ha pump inlet swirl attenuation, analysis of the main factors affect Xiamen Xiang reduction in the pump system design significance. Guan Lu words. Plastic ink plastic,[link widoczny dla zalogowanych], 6, Xi 1 Introduction Experimental studies have shown that mu, Is centrifugal pump system,[link widoczny dla zalogowanych], the entrance of their buildings is a three-dimensional fluid motion of the rotating spiral vortex generated by the impeller, by the viscous fluid from the impeller blade-free imports The cone-shaped suction ring cavity official transfer to the suction pipe upstream. As boundary conditions, spin transfer process will gradually decay glistening intensity, attenuation and pump operating conditions, fluid viscosity and boundary conditions. 2 cyclone strength degradation and the relationship between the number of people watching promise that Charlie exists in the spin-free centrifugal impeller inlet blade ring cavity, the pump suction chamber and suction tube, the swirl strength of Ha Yi Mountain area by different laws to 0 = c . / R on behalf of cyclone intensity, c. Council for the swirl velocity to the point and shoot from the impeller axis is the radius, see [1]. 2.1 The ring cavity without leaves swirl swirl intensity of this part of the attenuation of intensity with the increase of Reynolds taught decrease Re and Re ≤ 8.64 × 10 ', the decay quickly, when r - - Figure 1i ~ chu chu e relationships e> 8.64 × 10 'when the decay has slowed, the DA in the whole ring cavity surface near the point (S.), at Re> 1.6xlO' and close to zero after the rapid decay of shown in Figure l. The figure since =. . , Re = in, m. Calls round for the angular velocity, D is the pump inlet diameter, is 0 body kinematic viscosity, the pump population average velocity, = Q /, port is the pump flow, as

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