Hydraulics & Pneumatics for SPPU 15 Course (BE - I - Mech. - 402041) (OLD EDITION)

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Unit 1 : Basics of Fluid Power and Pumps Fluid power basics, advantages and limitations, fluid power distribution, standard symbols, energy loss in hydraulic systems. Pumps - types, classification, principle of working and constructional details of vane pumps, gear pumps, radial and axial plunger pumps, Screw pumps, power and efficiency calculations, and characteristics curves. (Chapter - 1) Unit 2 : Actuators and Power Unit Linear and rotary actuators - types, construction and characteristics. Cylinder mountings, cushioning of cylinders. Power units and accessories - types of power units, reservoir assembly, constructional details. Accumulators, Intensifiers, Pressure and Temperature switches/sensors, level sensors. (Chapter - 2) Unit 3 : Fluid Power Control Direction control valves - center positions, methods of actuation, two stage valves, Flow control valves - pressure and temperature compensated. Pressure control valves - pressure reducing valve, sequence valve, unloading valve, brake valve, back pressure valve, counter balance valve, check valves, prefill valve, servo valves, cartridge valves, proportional valves. (Chapter - 3) Unit 4 : Hydraulic Circuits and Contamination Control Hydraulic circuits : Simple reciprocating, regenerative, speed control (meter in, meter out and bleed off), sequencing, synchronization, traverse and feed, automatic reciprocating, fail safe circuit, counter balance circuit, actuator locking, unloading circuit, motor braking circuit etc. Contamination control : Contamination, sources of contamination, suction strainer, filters, filtration, filter ratings. (Chapter - 4) Unit 5 : Pneumatics - Components, Control Valves and Circuits Compressors - Types, principle of working and constructional details. Comparison of pneumatic with hydraulic power transmissions. Types of filters, pressure regulators, lubricators, mufflers, dryers, direction control valves, pneumatic actuators, shuttle valve, two pressure valve, quick exhaust valve and time delay valves, electro - pneumatics. Speed regulating methods, pneumatic circuits, reciprocating, cascading time delay etc. Application of pneumatics in low cost automation and in industrial automation. (Chapter - 5) Unit 6 : System Analysis and Design Calculation of piston velocity, thrust under static and dynamic applications, considering friction, inertia loads, design considerations for cylinders, Design of hydraulic/pneumatic circuits for practical application, selection of different components such as reservoir, control elements, actuators, accumulator, intensifier, filters, pumps. (Students are advised to refer manufacturers' catalogues for design and use simulation tool like Automation Studio for analysis). (Chapter - 6)

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Author: [Vinayak V. Gaikwad] Pages: 288 Edition: 2019 Vendors: Technical Publications