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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.


Papers
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Patent
W Engstrom1
11 Dec 1972
TL;DR: A mounting and drive for a hydraulic pump on an engine having a crankshaft and a flywheel gear is described in this paper, where a mounting plate is secured to the engine and a bearing support and a pump bearing are on the mounting plate.
Abstract: A mounting and drive for a hydraulic pump on an engine having a crankshaft and a flywheel gear. Additional gear means are in driving relation with the flywheel gear and extend from the crankshaft to the pump for powering the pump directly from the engine. A mounting plate is secured to the engine, and a bearing support and a pump bearing are on the mounting plate. A pump gear is supported in the bearing, and the pump shaft connects with the pump gear and is removable therefrom for removal or replacement of the pump. Also, the flywheel and the gears extending to the pump are removable for altering the gear ratio.

11 citations

Patent
15 Jul 2005
TL;DR: A transaxle for a vehicle includes a first input shaft having a first speed drive gear, a third speed drive gears, and a reverse drive gear; and a second input shaft has a second speed drive drive gear.
Abstract: A transaxle for a vehicle includes a first input shaft having a first speed drive gear, a third speed drive gear, and a reverse drive gear; and a second input shaft having a second speed drive gear. An output shaft has a first speed driven gear engaged with the first speed drive gear, a second speed driven gear engaged with the second speed drive gear, a third speed driven gear engaged with the third speed drive gear, a reverse driven gear, and a pinion adapted to engage with a differential. A reverse idler shaft has an idler input gear engaged with the reverse drive gear and an idler output gear, axially spaced from and rotationally fixed to the idler input gear and engaged with the reverse driven gear. Synchronizers selectively connect the first and second input shafts to the output shaft.

11 citations

Patent
07 Sep 1982
TL;DR: In this paper, a helical, positive displacement, external gear pump with a gear contact ratio greater than unity was proposed, where the space between two meshing gear teeth registers with the cutoff edge of the outlet port at one end of the space.
Abstract: A helical, positive displacement, external gear pump having a gear contact ratio greater than unity wherein the space between two meshing gear teeth registers with the cutoff edge of the outlet port at one end of the space and as it registers with the inlet edge of the inlet port at the opposite end of the space thereby eliminates the need for providing end plate recesses.

11 citations

Patent
Hollis N White1
27 Sep 1967

11 citations

Patent
23 Jun 1987
TL;DR: A gear pump or motor comprises a pair of gears intermeshing with each other, a case body accommodating the pair of gear, and a hard layer formed on an inner surface of the case body as discussed by the authors.
Abstract: A gear pump or motor comprises a pair of gears intermeshing with each other, a case body accommodating the pair of gears, and a hard layer formed on an inner surface of the case body The hard layer is made of a material to be as hard as not to be cut by tooth tips of the pair of gears The hard layer may be a ceramic coating or a composite coating layer which performs a grinding like operation on the tooth tips

11 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202320
202251
202154
2020137
2019198
2018276