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HYDRAULIC PUMPSHydraulic pumps are designed to provide fluid flow and are made in many different designs, from simple hand pumps to very complex, multiple-piston, variable-displacement pumps.
Hand Pumps A diagram of a single-acting hand pump is shown in Fig. 13-17. This diagram illustrates the basic principle of a piston pump. When the handle is moved toward the left, the piston movement creates a low-pressure condition and draws fluid from the reservoir through the check valve and into the cylinder. Then when the handle is moved toward the right, the pist…
Michael J. Kroes; Ronald Sterkenburg: Aircraft Maintenance & Repair, Seventh Edition. HYDRAULIC PUMPS, Chapter (McGraw-Hill Professional, 2013), AccessEngineering Export