BE Mechanical 2003 Structure - K. K. Wagh Education Society
BE Mechanical 2003 Structure - K. K. Wagh Education Society
BE Mechanical 2003 Structure - K. K. Wagh Education Society
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6. Power units and accessories: Types of power units, reservour assembly,<br />
constructional details, pressure gauges, pressure switches, temperature switches<br />
etc.<br />
7. Accumulators: Types, selection/design procedure, applications of accumulators.<br />
8. Pumps: Types, classification, principle of working and constructional details of<br />
vane pumps, gear pumps, radial and axial plunger pumps, screw pumps, power<br />
and efficiency calculations, characteristic curves, selection of pump for hydraulic<br />
power transmission.<br />
9. Control of fluid power:<br />
(i) Necessity of fluid control through pressure control, direction control, flow<br />
control valves.<br />
(ii) Principle of pressure control valves, direct operated and pilot operated relief<br />
valves, pressure reducing; valve, sequence valve.<br />
(iii) Principle of flow control valves, pressure compensated, temperature<br />
compensated flow control valves, meter in circuit, meter out circuits, flow<br />
through restrictor.<br />
(iv) Types of direction control valves: t two way two position, four way three<br />
position, four way two positions valves. Open centre, close centre, tandem<br />
centre valves, Cartridge valves. Manually operated, solenoid operated, pilot<br />
operated, direction control valves, check valve.
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