gear pump


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gear pump

[′gir ‚pəmp]
(mechanical engineering)
A rotary pump in which two meshing gear wheels contrarotate so that the fluid is entrained on one side and discharged on the other.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Gear Pump

 

a rotary pump with gears as working members. Involute straight-cut, helical, or herringbone gears are ordinarily used. Such pumps are simple in design, compact, and reliable. Their output ranges from 0.25 to 40 cu m per hr at pressures up to 3 meganewtons per m2 (30 kg-force per cm2). Gear pumps are used mainly for circulating petroleum products in machine lubrication systems and in hydraulic drive mechanisms.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

gear pump

gear pump
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 output fluid back into the pump inlet.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Summary: Study offers a ten-year analysis and forecast for the global hydraulic gear pump market between 2018 and 2028.
Extruder gear pump systems from the company are used in different types of extrusion applications where precision of the extrusion product is a major requirement.
has developed an online tool that quickly calculates the resin cost savings and ROI achievable with its BKG BlueFlow gear pump. This Gear Pump Payback Analysis calculates resin cost savings and investment payback time on the basis of resin price, output rate, pressure variation with and without the gear pump, and capital investment.
Coimbatore, India, May 29, 2017 --(PR.com)-- Pricol Technologies Experts performed CFD analysis of an external gear pump used in automotive industry.
et al., "A CFD study of an Electronic Hydraulic Power Steering Helical External Gear Pump: Model Development, Validation and Application," SAE Int.
Adopting a fresh, clean-sheet approach to confronting the conundrums inherent in traditional sealless pump design has led to the creation of a new line of sealless gear pumps. In short, the new Envirogear pump increases reliability while eliminating the unacceptably high ownership, maintenance and environmental costs that have dogged previous sealless gear pump designs.
The MTs achieves 40--60% greater energy efficiency than a conventional hydraulic machine by coupling a permanent-magnet AC servo motor with a fixed gear pump. The machine's servo system allows the pump to deliver oil on demand as required for each stage of the injection process.
The EnviroGear is a durable, environmentally friendly positive displacement gear pump developed to compete where other seal-less (mag-drive) internal gear pumps cannot.
The Hydraulic Systems Division of Haldex has announced the introduction of the new F15 Ferra Series hydraulic gear pump for applications in the construction, agricultural and internal combustion (IC) lift truck markets.
** Power-control system with gear pump and main relief valve