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  2. Gear pump - Wikipedia

    en.wikipedia.org/wiki/Gear_pump

    Gear pumps are also widely used in chemical installations to pump high-viscosity fluids. There are two main variations: external gear pumps which use two external spur gears, and internal gear pumps which use an external and an internal spur gear (internal spur gear teeth face inwards, see below). Gear pumps provide positive displacement (or ...

  3. Hydraulic pump - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_pump

    Fluid flow in an external gear pump. A hydraulic pump is a mechanical source of power that converts mechanical power into hydraulic energy (hydrostatic energy i.e. flow, pressure). Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydrodynamic. They generate flow with enough power to overcome pressure induced by a ...

  4. Hydraulic machinery - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_machinery

    An exploded view of an external gear pump. Hydraulic pumps supply fluid to the components in the system. Pressure in the system develops in reaction to the load. Hence, a pump rated for 5,000 psi is capable of maintaining flow against a load of 5,000 psi. Pumps have a power density about ten times

  5. Marine pump - Wikipedia

    en.wikipedia.org/wiki/Marine_pump

    Gear pumps are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution. Some gear pumps are designed to function as either a motor or a pump. The screw pump is a positive-displacement (PD) pump that uses one or several screws to move fluids or solids along the screw(s) axis. In its ...

  6. Pump - Wikipedia

    en.wikipedia.org/wiki/Pump

    Rotary positive-displacement pumps fall into five main types: Gear pumps – a simple type of rotary pump where the liquid is pushed around a pair of gears. Screw pumps – the shape of the internals of this pump is usually two screws turning against each other to pump the liquid; Rotary vane pumps

  7. The 12 Best Bike Pumps of 2023 - AOL

    www.aol.com/lifestyle/best-bike-pumps-2022...

    We tested and reviewed the best bike pumps. These are our top bike pumps for reliability, durability, accuracy, features, price, and, of course, aesthetics. The 12 Best Bike Pumps of 2023

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