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Hydraulic machinery. A simple open center hydraulic circuit. An excavator; main hydraulics: Boom cylinders, swing drive, cooler fan, and trackdrive. Fundamental features of using hydraulics compared to mechanics for force and torque increase/decrease in a transmission. Hydraulic machines use liquid fluid power to perform work.
Hydraulics (from Ancient Greek ὕδωρ (húdōr) ' water ' and αὐλός (aulós) ' pipe ') [2] is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases.
Hydraulic engineering as a sub-discipline of civil engineering is concerned with the flow and conveyance of fluids, principally water and sewage. One feature of these systems is the extensive use of gravity as the motive force to cause the movement of the fluids. This area of civil engineering is intimately related to the design of bridges ...
The history of fluid mechanics is a fundamental strand of the history of physics and engineering. The study of the movement of fluids (liquids and gases) and the forces that act upon them dates back to pre-history. The field has undergone a continuous evolution, driven by human dependence on water, meteorological conditions, and internal ...
An excavator in Ourense, Spain Hydraulic excavator in action. Excavators are heavy construction equipment primarily consisting of a boom, dipper (or stick), bucket, and cab on a rotating platform known as the "house" [1] - although the largest form ever, the dragline excavator, eliminated the dipper in favor of a line and winch.
Crane (machine) Diagram of a modern crawler crane with outriggers. The latticed boom is fitted with a jib. Manual crane from the late 19th century used for unloading small loads from ships at the Port of Barcelona, Spain. A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ...
Worthington and Baker, manufacturers of hydraulic machinery such as steam pumps and meters, was founded by Henry R Worthington and William H. Baker. [1] Worthington was the inventor of the direct acting steam pump. [2] The first foundry was near the Brooklyn Navy Yard. In 1854 the partners moved to Van Brunt Street in Brooklyn.
Heron's fountain is a hydraulic machine invented by the 1st century AD inventor, mathematician, and physicist Heron (or Hero) of Alexandria . [1] Heron studied the pressure of air and steam, described the first steam engine, and built toys that would spurt water, one of them known as Heron's fountain. Various versions of Heron's fountain are ...