Internal variable vane pump is a form of variable vane pump, its variable operating force comes from its own discharge pressure. So how does it work? The following is about the internal control variable vane pump principle of work. Internal variable vane pump principle of operation The stator ring in the top of the bearing can be moved under the horizontal direction. The arrangement of the suction and discharge windows and the stator movement direction of the pump adapter plate have an offset angle of 0. The force of the oil discharge pressure on the stator ring can be decomposed into a component F1 in the vertical direction and a component F2 in the same direction as the stator moving direction. F2 overcomes the compressive force of the adjusting spring to form a regulating force to push the stator ring to move. When the pump operating pressure formed by the adjustment force R is less than the spring preload, the stator eccentricity e of the rotor by the maximum flow rate adjustment screw to maintain the maximum. Therefore, the flow of the pump is basically the same, only due to a slight drop of leakage, as shown by AB in Figure 7-2. When the pump working pressure exceeds P. Value, the adjustment force F2 is greater than the spring preload. As the working pressure increases, the adjustment force F increases to overcome the spring force to reduce the eccentricity of the stator ring to move the direction of displacement of the pump began to decline. When the working pressure reaches P, the theoretical flow of the pump corresponding to the eccentricity of the stator ring is equal to its leakage, and the actual output flow of the pump is zero. At this point the pump output pressure is the maximum. Increasing the pre-tightening force of the adjusting spring can shift the curvilinear section of Figure 7-2 parallel to the right. Reduce the spring stiffness, can change the slope of the BC section, making it steeper. Adjust the maximum flow adjustment screw to adjust the position of point A on the curve (ie maximum flow). This variable pump is called pressure limiting (also known as pressure feedback or pressure compensation) pump. Internal control variable vane pump structure is simple, easy to adjust. However, due to the deflection of the distribution plate, the effective displacement of the pump is reduced and the flow pulsation is increased. Its dynamic adjustment characteristics are also relatively poor, and therefore generally only for the economy of small size pump. For the performance requirements of large and medium-sized variable vane pump, large-scale Figure 7-2 pressure-limiting variable displacement vane pump part of the external control. Extended reading: Top ten brands of motor China Construction Water Exhibition Pump manufacturers ranked ptc exhibition industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (service Hotline:)
Antique Bathroom Accessories
Antique bathroom accessories are often made of brass. Antique is a kind of style, finished by different colors. These are quite different from contemporary style, although they are also made of brass. That`s why we separate them as one class. Antique bathroom accessories are popular in American and European countries.
Antique Bathroom Accessories,Retro Bathroom Accessories,Vintage Bathroom Accessories,Vintage Bathroom Decor
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