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2. Electro-hydraulic actuator - Wikipedia

   en.wikipedia.org/wiki/Electro-hydraulic_actuator

   Electro-hydraulic actuators (EHAs), replace hydraulic systems with self-contained actuators operated solely by electrical power. EHAs eliminate the need for separate hydraulic pumps and tubing, because they include their own pump, [1] simplifying system architectures and improving safety and reliability. This technology originally was developed ...

3. Hydraulic ram - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_ram

   Toward the end of the 19th century, interest waned as electricity and electric pumps became widely available. Priestly's Hydraulic Ram , built in 1890 in Idaho, was a "marvelous" invention, apparently independent, which lifted water 110 feet (34 m) to provide irrigation.

4. Denison Hydraulics - Wikipedia

   en.wikipedia.org/wiki/Denison_Hydraulics

   Denison Hydraulics is a publicly traded U.S.-based company (Stock Symbol:DENHY) that manufactures industrial hydraulic fluid power systems (hydraulic pumps, motors, valves and engineered systems [1]) and components and is headquartered in Marysville, Ohio. Denison is owned by Parker Hannifin.

5. Hydraulic machinery - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_machinery

   Common types of hydraulic pumps to hydraulic machinery applications are: Gear pump: cheap, durable (especially in g-rotor form), simple. Less efficient, because they are constant (fixed) displacement, and mainly suitable for pressures below 20 MPa (3000 psi). Vane pump: cheap and simple, reliable. Good for higher-flow low-pressure output.

6. Water pumping - Wikipedia

   en.wikipedia.org/wiki/Water_pumping

   A spiral pump, sometimes called a Wirz pump or incorrectly Wirtz pump, is a low lift pump which is composed of a long piece of metal plating, which is wound into a coil and sealed at the top and back extremities so as to resemble a cylinder. The outer cavity serves as the inlet, while the inner (partial) tube serves as the outlet.

7. Hydraulic accumulator - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_accumulator

   A hydraulic accumulator is a pressure storage reservoir in which an incompressible hydraulic fluid is held under pressure that is applied by an external source of mechanical energy. The external source can be an engine, a spring , a raised weight , or a compressed gas .