constant displacement pump
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constant-displacement pump — A pump that moves a constant volume of fluid in each rotation. Some form of pressure relief valve or pressure regulator is used with a constant displacement pump. Gear pumps, vane pumps, and gerotor pumps are some of the constant displacement… … Aviation dictionary
fixed-displacement pump — One whose output volume is uniform on each repetitive cycle. Some form of pressure regulator or relief valve must be used with a fixed displacement pump when it is driven by an aircraft engine. See constant displacement pump. Fixed displacement… … Aviation dictionary
Constant speed propeller — Cutaway constant speed propeller hub … Wikipedia
pump — pump1 pumpable, adj. pumpless, adj. pumplike, adj. /pump/, n. 1. an apparatus or machine for raising, driving, exhausting, or compressing fluids or gases by means of a piston, plunger, or set of rotating vanes. 2. Engin., Building Trades. a shore … Universalium
Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… … Wikipedia
Hydraulic pump — A Hydraulic is used in hydraulic drive systems.Hydraulic pumps can be hydrostatic or hydrodynamic.Hydrostatic pumps are positive displacement pumps.Hydrostatic pumps can be fixed displacement pumps, in which the displacement (flow through the… … Wikipedia
Fuel pump — should not be confused with fuel dispenser, a device that dispenses fuel into an automobile. A high pressure fuel pump on a Yanmar 2GM20 marine diesel engine. A fuel pump is a frequently (but not always) essential component on a car or other… … Wikipedia
Downton pump — The Downton pump is type of positive displacement pump patented in 1825 by Jonathan Downton. It was typically used on ships.[1] The design of the Downton pump sought to create a more constant flow of pumped liquid, and a steadier load state on… … Wikipedia
gear pump — A high pressure pump used in hydraulic, oil, and fuel systems. The fluid is pressurized when it passes between the teeth of a gear and radiused case of the pump. It is a constant displacement type pump whose output is varied by spilling the pump… … Aviation dictionary
vane-type pump — A form of constant displacement fluid moving pump in which a rotor containing sliding vanes turns in an eccentric cavity to force air through the pump … Aviation dictionary
Gear pump — [ Gerotor pump] A Gear pump uses the meshing of gears to pump fluid by displacement. They are one of the most common types of pumps for hydraulic fluid power applications. Gear pumps however are also widely used in chemical installations to pump… … Wikipedia
