An axial piston pump delivers 0.002 m/s at 3300 rpm. It has nine 16-mm diameter pistons...
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An axial piston pump delivers 0.002 m³/s at 3300 rpm. It has nine 16-mm diameter pistons arranged on a 135-mm piston circle diameter. Calculate the offset angle for the pump if the volumetric efficiency is 94%. What is the stroke of the cylinder? Show the details of your calculations. Neatness. units and legibility Problem 2: A pump delivers oil at a rate of Q gpm to the blank end of a 2.2-inch-diameter hydraulic cylinder as shown in the figure. The piston consists of a 0.8-inch-diameter cushion that is 1.15 inch long. The cylinder drives a 1200-lb weight which slides on a flat horizontal surface. The coefficient of friction between the weight and the horizontal surface is = 0.25. The pressure developed by the cylinder cushion is P: -850 psi. Showing the details of your calculations, • Find the fluid pressure, P; at the blank end of the piston if the load is moved with an acceleration of 28 ft/s². • Obtain the flow rate in gpm delivered to the cylinder. •Determine the power delivered by the pump to the cylinder assuming no losses between the pump outlet and the cylinder inlet. • Find the power delivered to the pump if the pump overall efficiency is 90%. Free-body diagram, units and neatness CUSHION PLUNGER W-1200 lb ROD LOAD W DOUT Problem 3: The following characteristics refer to a hydrostatic transmission operating at pressure of 1475 psi. Pump VD=100 cm³ 77-85% 77-90% N=1000 rpm Motor V₁ =? 77-94% 77-92% N=600 rpm Showing the details of your calculations determine the a. Displacement of the motor (VD) b. Motor output torque Neatness, units and legibility Bonus Problem: The following data refer to the pressure booster shown in the figure: Inlet air pressure (P1) = 90 psi Air piston diameter (D₁) = 5 in. Oil piston diameter (D)= 1.25 in. Load carrying capacity (F) = 60,000 lb PRESSURE BOOSTER AIR LINE OIL PISTON HYDRAULIC CYLINDER INLET AIR SUPPLY P-100 p AIR PRESSURE ADR PISTON CHL LINE LOAD PISTON Find the required load piston diameter Di Neatness and appropriate units Show the details of your calculations. An axial piston pump delivers 0.002 m³/s at 3300 rpm. It has nine 16-mm diameter pistons arranged on a 135-mm piston circle diameter. Calculate the offset angle for the pump if the volumetric efficiency is 94%. What is the stroke of the cylinder? Show the details of your calculations. Neatness. units and legibility Problem 2: A pump delivers oil at a rate of Q gpm to the blank end of a 2.2-inch-diameter hydraulic cylinder as shown in the figure. The piston consists of a 0.8-inch-diameter cushion that is 1.15 inch long. The cylinder drives a 1200-lb weight which slides on a flat horizontal surface. The coefficient of friction between the weight and the horizontal surface is = 0.25. The pressure developed by the cylinder cushion is P: -850 psi. Showing the details of your calculations, • Find the fluid pressure, P; at the blank end of the piston if the load is moved with an acceleration of 28 ft/s². • Obtain the flow rate in gpm delivered to the cylinder. •Determine the power delivered by the pump to the cylinder assuming no losses between the pump outlet and the cylinder inlet. • Find the power delivered to the pump if the pump overall efficiency is 90%. Free-body diagram, units and neatness CUSHION PLUNGER W-1200 lb ROD LOAD W DOUT Problem 3: The following characteristics refer to a hydrostatic transmission operating at pressure of 1475 psi. Pump VD=100 cm³ 77-85% 77-90% N=1000 rpm Motor V₁ =? 77-94% 77-92% N=600 rpm Showing the details of your calculations determine the a. Displacement of the motor (VD) b. Motor output torque Neatness, units and legibility Bonus Problem: The following data refer to the pressure booster shown in the figure: Inlet air pressure (P1) = 90 psi Air piston diameter (D₁) = 5 in. Oil piston diameter (D)= 1.25 in. Load carrying capacity (F) = 60,000 lb PRESSURE BOOSTER AIR LINE OIL PISTON HYDRAULIC CYLINDER INLET AIR SUPPLY P-100 p AIR PRESSURE ADR PISTON CHL LINE LOAD PISTON Find the required load piston diameter Di Neatness and appropriate units Show the details of your calculations.
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Problem 1 Given Piston circle diameter 135 mm Volumetric efficiency ... View the full answer
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