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A hydraulic cylinder is the actuator or "motor" side of this system. The "generator" side of the hydraulic system is the hydraulic pump which delivers a fixed or regulated flow of oil to the hydraulic cylinder, to move the piston. There are three types of pump widely used: hydraulic hand pump, hydraulic air pump, and hydraulic electric pump.
Energy manufactures a wide variety of hydraulic cylinders; welded, tie-rod, ram-type, rephasing, [5] telescopic, and position-sensing. [6] Energy has designed and manufactured hydraulic cylinders with bores from less than one inch (2.5 cm), up to 11 inches (28 cm). Cylinders have been manufactured with strokes up to 15 feet (4.5 cm).
Linde Hydraulics is a manufacturer of heavy duty drive systems consisting of hydraulics, power transmissions, and electronics. The company's product offerings include hydraulic pumps and motors, directional control valves , power transmissions as well as peripheral electronics and software .
Parker Hannifin acquired Commercial Intertech Corporation, a maker of hydraulic systems, in 2000.Commercial Intertech had previously acquired Oildyne Inc., a well known hydraulic manufacturer. Parker has an Oildyne division today. [20] With a cost of $366 million, this was at the time Parker Hannifin's biggest acquisition. [19]
The 14-cylinder version first entered commercial service in September 2006 aboard the Emma Mærsk. The design is similar to the older RTA96C engine, but with common rail technology (in place of traditional camshaft, chain gear, fuel pump and hydraulic actuator systems).
A fluid power system has a pump driven by a prime mover (such as an electric motor or internal combustion engine) that converts mechanical energy into fluid energy, Pressurized fluid is controlled and directed by valves into an actuator device such as a hydraulic cylinder or pneumatic cylinder, to provide linear motion, or a hydraulic motor or pneumatic motor, to provide rotary motion or torque.