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Hydraulic machinery

Index Hydraulic machinery

Hydraulic machines are machinery and tools that use liquid fluid power to do simple work. [1]

67 relations: Actuator, ASME, Automatic transmission, Axial piston pump, Bessemer process, Bosch Rexroth, Brake, Brake fluid, Cavitation, Check valve, Compression fitting, Control valve, Directional control valve, Elastomer, Face seal, Flare fitting, Fluid power, Fuse (hydraulic), Galvanization, Gear pump, Harry Franklin Vickers, Heavy equipment, Henry Maudslay, High-density solids pump, Hose, Hydraulic accumulator, Hydraulic brake, Hydraulic circuit, Hydraulic clearance, Hydraulic cylinder, Hydraulic drive system, Hydraulic fluid, Hydraulic motor, Hydraulic press, Hydraulic pump, Inch pedal, Iron, Jack (device), JIC fitting, Joseph Bramah, Liquid, Logical disjunction, Lubrication, National Fluid Power Association, O-ring, O-ring boss seal, Oil filter, Pascal (unit), Pipe (fluid conveyance), Pound (force), ..., Pounds per square inch, Power density, Pressure regulator, Radial piston pump, Relief valve, Rotary vane pump, Seal (mechanical), Shuttle valve, Sidelifter, Solenoid, Steam hammer, Steel, Swaging, Swashplate, Threaded pipe, Tube (fluid conveyance), Welding. Expand index (17 more) »


An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve.

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The American Society of Mechanical Engineers (ASME) is a professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, a lobbying organization, a provider of training and education, and a nonprofit organization.

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Automatic transmission

An automatic transmission, also called auto, self-shifting transmission, n-speed automatic (where n is its number of forward gear ratios), or AT, is a type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually.

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Axial piston pump

An axial piston pump is a positive displacement pump that has a number of pistons in a circular array within a cylinder block.

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Bessemer process

The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace.

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Bosch Rexroth

Bosch Rexroth AG is an engineering firm based in Lohr am Main in Germany.

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A brake is a mechanical device that inhibits motion by absorbing energy from a moving system.

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Brake fluid

Brake fluid is a type of hydraulic fluid used in hydraulic brake and hydraulic clutch applications in automobiles, motorcycles, light trucks, and some bicycles.

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Cavitation is the formation of vapour cavities in a liquid, small liquid-free zones ("bubbles" or "voids"), that are the consequence of forces acting upon the liquid.

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Check valve

A check valve, clack valve, non-return valve, reflux valve, retention valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.

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Compression fitting

Compression fittings are used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together.

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Control valve

A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller.

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Directional control valve

Directional control valves are one of the most fundamental parts in hydraulic machinery as well as pneumatic machinery.

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An elastomer is a polymer with viscoelasticity (i. e., both viscosity and elasticity) and very weak intermolecular forces, and generally low Young's modulus and high failure strain compared with other materials.

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Face seal

A face seal is a seal in which the sealing surfaces are normal to the axis of the seal.

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Flare fitting

Flare fittings are a type of compression fitting used with metal tubing, usually soft steel, ductile (soft) copper and aluminum, though other materials are also used. Tube flaring is considered to be a type of forging operation, and is usually a cold working procedure. During assembly, a flare nut is used to secure the flared tubing's tapered end to the also tapered fitting, producing a pressure-resistant, leak-tight seal. Flared connections offer a high degree of long-term reliability and for this reason are often used in mission-critical and inaccessible locations.

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Fluid power

Fluid power is the use of fluids under pressure to generate, control, and transmit power.

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Fuse (hydraulic)

In hydraulic systems, a fuse (or velocity fuse) is a component which prevents the sudden loss of hydraulic fluid pressure.

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Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting.

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Gear pump

A gear pump uses the meshing of gears to pump fluid by displacement.

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Harry Franklin Vickers

Harry Franklin Vickers (October 1, 1898 – January 12, 1977) was an American inventor and industrialist.

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Heavy equipment

Heavy equipment refers to heavy-duty vehicles, specially designed for executing construction tasks, most frequently ones involving earthwork operations.

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Henry Maudslay

Henry Maudslay (pronunciation and spelling) (22 August 1771 – 14 February 1831) was a British machine tool innovator, tool and die maker, and inventor.

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High-density solids pump

High-density solids pumps are hydrostatically operating machines which displace the medium being pumped and thus create a flow.

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A hose is a flexible hollow tube designed to carry fluids from one location to another.

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Hydraulic accumulator

A hydraulic accumulator is a pressure storage reservoir in which a non-compressible hydraulic fluid is held under pressure that is applied by an external source.

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Hydraulic brake

A hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing glycol ethers or diethylene glycol, to transfer pressure from the controlling mechanism to the braking mechanism.

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Hydraulic circuit

A hydraulic circuit is a system comprising an interconnected set of discrete components that transport liquid.

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Hydraulic clearance

Hydraulic clearance. Flow in narrow clearances are of vital importance in hydraulic system component design.

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Hydraulic cylinder

A hydraulic cylinder (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectional force through a unidirectional stroke.

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Hydraulic drive system

A hydraulic drive system is a quasi-hydrostatic drive or transmission system that uses pressurized hydraulic fluid to power hydraulic machinery.

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Hydraulic fluid

A hydraulic fluid or hydraulic liquid is the medium by which power is transferred in hydraulic machinery.

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Hydraulic motor

A hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation).

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Hydraulic press

A hydraulic press is a device (see machine press) using a hydraulic cylinder to generate a compressive force.

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Hydraulic pump

Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydrodynamic.

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Inch pedal

An inch pedal or inching pedal is a pedal used in many models of mobile machinery with a hydraulic pilot pressure output proportional to the pedal position, or an electronic pedal with a proportional electric signal output.

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Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.

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Jack (device)

A jack, screwjack or jackscrew is a mechanical device used as a lifting device to lift heavy loads or to apply great forces.

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JIC fitting

JIC fittings, defined by the SAE J514 and MIL-F-18866 standards, are a type of flare fitting machined with a 37-degree flare seating surface. JIC (Joint Industry Council) fittings are widely used in fuel delivery and fluid power applications, especially where high pressure (up to 10,000 psi) is involved. The SAE J514 standard replaces the MS16142 military specification, although some tooling is still listed under MS16142. JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. SAE 45-degree flare fittings are similar in appearance, but are not interchangeable, though dash sizes 2, 3, 4, 5, 8, 10, 14, and 16 share the same thread size.

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Joseph Bramah

Joseph Bramah (13 April 1748 – 9 December 1814), born Stainborough Lane Farm, Stainborough, Barnsley Yorkshire, was an English inventor and locksmith.

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A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.

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Logical disjunction

In logic and mathematics, or is the truth-functional operator of (inclusive) disjunction, also known as alternation; the or of a set of operands is true if and only if one or more of its operands is true.

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Lubrication is the process or technique of using a lubricant to reduce friction and/or wear in a contact between two surfaces.

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National Fluid Power Association

The National Fluid Power Association (NFPA) is an American 501(c)6 industry trade association, founded in 1953.

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An O-ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

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O-ring boss seal

An o-ring boss seal is a technique for joining two fluid-carrying pipes, hoses, or tubing.

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Oil filter

An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil.

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Pascal (unit)

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength.

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Pipe (fluid conveyance)

A pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids.

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Pound (force)

The pound-force (symbol: lbf, sometimes lbf) is a unit of force used in some systems of measurement including English Engineering units and the British Gravitational System.

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Pounds per square inch

The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units.

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Power density

Power density (or volume power density or volume specific power) is the amount of power (time rate of energy transfer) per unit volume.

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Pressure regulator

A pressure regulator is a control valve that reduces the input pressure of a fluid to a desired value at its output.

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Radial piston pump

A radial piston pump is a form of hydraulic pump.

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Relief valve

A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; pressure might otherwise build up and create a process upset, instrument or equipment failure, or fire.

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Rotary vane pump

A rotary vane pump is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside of a cavity.

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Seal (mechanical)

A mechanical seal is a device that helps join systems or mechanisms together by preventing leakage (e.g. in a plumbing system), containing pressure, or excluding contamination.

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Shuttle valve

A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources.

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A sidelifter is a specialised vehicle or semi-trailer used to hoist and transport ISO standard intermodal containers over longer distances.

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A solenoid (/ˈsolə.nɔɪd/) (from the French solénoïde, derived in turn from the Greek solen ("pipe, channel") and eidos ("form, shape")) is a coil wound into a tightly packed helix.

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Steam hammer

A steam hammer, also called a drop hammer, is an industrial power hammer driven by steam that is used for tasks such as shaping forgings and driving piles.

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Steel is an alloy of iron and carbon and other elements.

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Swaging is a forging process in which the dimensions of an item are altered using dies into which the item is forced.

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A swashplate (also known as slant disk), invented by Anthony George Maldon Michell in 1917, is a device used in mechanical engineering to translate the motion of a rotating shaft into reciprocating motion, or vice versa.

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Threaded pipe

A threaded pipe is a pipe with screw-threaded ends for assembly.

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Tube (fluid conveyance)

A tube, or tubing, is a long hollow cylinder used for moving fluids (liquids or gases) or to protect electrical or optical cables and wires.

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Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal.

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[1] https://en.wikipedia.org/wiki/Hydraulic_machinery

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