Topic
Gear pump
About: Gear pump is a research topic. Over the lifetime, 7490 publications have been published within this topic receiving 38837 citations. The topic is also known as: Gear pump.
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TL;DR: The visualization research method has been presented, which has been used for the study of the flow processes and phenomena in the external gear pump, and resulted in a considerable reduction of the intensity of the cavitation phenomena.
29 citations
Patent•
01 Dec 2000
TL;DR: In this article, a positive displacement fluid pump capable of an output flow rate can be varied from a maximum to zero at a given pump rotation speed, and a timing arrangement maintains both pumping gears always in synchronization, whether engaged or fully disengaged (zero pump output).
Abstract: A positive displacement fluid pump capable of an output flow rate can be varied from a maximum to zero at a given pump rotation speed. The pump is a variable-fluid-displacement-volume, gear pump having complement elements associated with pumping gears to provide end seals for a variable-length pumping chamber. A timing arrangement maintains both pumping gears always in synchronization, whether engaged or fully disengaged (zero pump output). And a follower provides effective sealing with a movable face of an axially-translating pumping gear.
29 citations
Patent•
29 Oct 1997TL;DR: In this article, a discharged pressurized fluid of a hydraulic pump is supplied to the first and second actuators via the first variable displacement type hydraulic pump/motors 13 and 14.
Abstract: The present invention has an object to enable to supply a discharged pressurized fluid of a hydraulic pump without any energy loss with an arbitrary flow rate distribution ratio to a plurality of actuators. A discharged pressurized fluid of the hydraulic pump 11 is supplied to the first and second actuators 15 and 16 via the first and second variable displacement type hydraulic pump/motors 13 and 14. The first variable displacement type hydraulic pump/motor 13 and the second variable displacement type hydraulic pump/motor 14 are mechanically connected to rotate at the same revolution speed. By this, the pressurized fluid is supplied to the first and second actuators 15 and 16 depending upon displacements of the first and second variable displacement type hydraulic pump/motors.
29 citations
Patent•
19 May 1980
TL;DR: A fluid pump system for an ink jet printer apparatus includes a reservoir of printing fluid, a filter for removing contaminants from the printing fluid and an apparatus for printing characters with the printing fluids as mentioned in this paper.
Abstract: A fluid pump system for an ink jet printer apparatus includes a reservoir of printing fluid, a filter for removing contaminants from the printing fluid, and an apparatus for printing characters with the printing fluid. A gear pump delivering steady, stable fluid pressure pumps the virtually contaminant free printing fluid to the printing apparatus. The gear pump also circulates to the reservoir an amount of printing fluid in excess of the amount required by the printing apparatus. A device regulates when the virtually contaminant free printing fluid is supplied to the means for printing and an additional device supplies virtually contaminant and air-free printing fluid to the means for printing.
29 citations