How does an axial piston variable pump work?

NOVEMBER 02, 2022

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Axial piston pump - WikipediaAn axial piston pump is a positive displacement pump that has a number of pistons in a circular array within a cylinder block.

All About Axial Piston Pumps - What They Are and How They Axial piston pumps can be designed as variable displacement piston pumps, making them very useful for controlling the speeds of hydraulic motors and Piston Pump - an overview | ScienceDirect TopicsIn axial piston pumps, the cylinder block and drive shaft are on the same centerline and the pistons reciprocate parallel to the drive shaft. The simplest type 

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DdBdaDaRadiusChamferOil Holes
A11VO95DR-10L-NSD12N480 mm400 mm35 mm426 mm447 mm2.5 mm - 3 mm
A11VO190LR/11L-NPD12N00-S140 mm90 mm20 mm104 mm120 mm1 mm - 2.5 mm
A11VO60EP2D/10R-NZC12K02H260 mm200 mm25 mm218 mm238 mm2 mm - 2.5 mm
A11VO200DR/10R-NPD12N00 *G*150 mm120 mm16 mm126 mm143 mm1 mm - 2.5 mm
A11VO145EP6Z/11R-NSD12K17H-S210 mm150 mm25 mm168 mm188 mm1.5 mm - 2.5 mm
A11VO40DRS/10R-NZC12N220 mm170 mm20 mm183 mm203 mm1.5 mm - 2.5 mm
A11VO145LRDH1/11R-NSD12K52160 mm110 mm20 mm126 mm143 mm1 mm - 2.5 mm
AA11VO145LG2S+AA4VG40DWD1100 mm70 mm13 mm77 mm92 mm0.6 mm - 2 mm
A11VO190LRDH2-11R-NSD12K07240 mm180 mm25 mm198 mm218 mm1.5 mm - 2.5 mm
A11VO130LRDH1/10L-NZD12N36 mm20 mm8 mm22.9 mm30.8 mm0.6 mm - 1.5 mm
A11VO190LR3DH1/11R-NZD12N00-S220 mm160 mm25 mm181 mm198 mm1.5 mm - 2.5 mm
A11VO95LRDS/10R-NSD12K04240 mm115 mm28 mm168 mm188 mm - 1.5 mm3 mm
A11VO40DR/10L-NZC12N150 mm100 mm20 mm117 mm132 mm1 mm - 2.5 mm
A11VO130LR-10R-NZD12K83V240 mm190 mm25 mm203 mm223 mm1.5 mm - 2.5 mm
A11VO95LG1DS-10L-NZD12N00V70 mm45 mm10 mm50 mm61.8 mm0.6 mm - 1.5 mm
A11VO60LRDC+A11VO60LRDC260 mm200 mm25 mm218 mm238 mm2 mm - 2.5 mm
A11VO260LRU2-11R-NPD12N00V-S260 mm200 mm25 mm218 mm238 mm2 mm - 2.5 mm
A11VO40DR/10L-NZC12K0190 mm60 mm13 mm67 mm82 mm0.6 mm - 2 mm
A11VO260LR-11R-NPD12N280 mm200 mm30 mm231 mm248 mm2 mm - 3 mm
A11VO60LRDS/10R-NZC12N180 mm120 mm25 mm138 mm158 mm1.5 mm - 2.5 mm
A11VO260EP2G+A11VO260EP2G240 mm115 mm28 mm168 mm188 mm - 1.5 mm3 mm
A11VO190 DRS+A11VO190 DRGX130 mm90 mm16 mm104 mm120 mm1 mm - 2.5 mm
A11VO95DRS-10R-NSD12N70 mm20 mm12 mm35 mm47 mm - 0.6 mm3 mm
A11VO130DRS/10R-NPD12N190 mm130 mm25 mm148 mm168 mm1.5 mm - 2.5 mm
A11VO190EP2Z/11R-NSD12K17H-S150 mm100 mm20 mm117 mm132 mm1 mm - 2.5 mm
A11VO130LR3DH1/10R-NZD12N70 mm45 mm10 mm50 mm61.8 mm0.6 mm - 1.5 mm
AA11VO145LG2S/11R-NZGXXK80-S330 mm250 mm30 mm280 mm299 mm2 mm - 3 mm
A11VO40EP1D/10R-NSC12N00H150 mm100 mm20 mm117 mm132 mm1 mm - 2.5 mm
A11VO95LRDH1 10L-NZD12N295 mm160 mm35 mm218 mm238 mm - 2 mm6 mm
A11VO75LRDC+A11VO75LRDC+A10VG45NVM1140 mm100 mm16 mm112 mm129 mm1 mm - 2.5 mm
A11VO40LRS-10R-NSC12N380 mm210 mm40 mm277 mm299 mm - 2.5 mm6 mm
A11VO40LRDH1-10R-NZC12K0255 mm30 mm10 mm35 mm46.8 mm0.6 mm - 1.5 mm
A11VO95LR3-10R-NZD12N70 mm45 mm10 mm50 mm61.8 mm0.6 mm - 1.5 mm
A11VO190LRDU2 11R-NPD12N00VH-S355 mm250 mm40 mm289 mm311 mm2 mm - 4 mm
A11VO95LRS/10L+A10VO45DFR1/31L90 mm60 mm13 mm67 mm82 mm0.6 mm - 2 mm
A11VO130LR3DH1-10R-NZD12N80 mm50 mm13 mm57.2 mm72 mm0.6 mm - 2 mm
A11VO130DRS-10R-NZD12K02180 mm120 mm25 mm138 mm158 mm1.5 mm - 2.5 mm
A11VO95LRS/10R-NPD12N36 mm20 mm8 mm22.9 mm30.8 mm0.6 mm - 1.5 mm
A11VO75LE2S/10R-NZD12N00T230 mm150 mm30 mm181 mm198 mm1.5 mm - 3 mm
A11VO95LRDS/10R-NZD12K02120 mm55 mm15 mm77 mm92 mm - 0.6 mm3 mm
A11VO190LR-11L-NPD12N140 mm90 mm20 mm104 mm120 mm1 mm - 2.5 mm
A11VO95LG2S-10R-NZG12K8150 mm120 mm16 mm126 mm143 mm1 mm - 2.5 mm
A11VO130LG1-10L-NZD12N00-S210 mm90 mm25 mm139 mm157 mm - 1.5 mm3 mm
A11VO60LRDS/10L-NSC12N150 mm100 mm20 mm117 mm132 mm1 mm - 2.5 mm
AA11VO95DRS/10L-NSD62K07395 mm300 mm35 mm337 mm359 mm2.5 mm - 3 mm
A11VO40DRS/10R-NSC12K01280 mm220 mm25 mm237 mm259 mm2 mm - 2.5 mm
A11VO75DRS/10R-NPD12K0165 mm40 mm10 mm45 mm56.8 mm0.6 mm - 1.5 mm
A11VO75LE1X/10R-NZD12K07P-S100 mm70 mm13 mm77 mm92 mm0.6 mm - 2 mm
A11VO190LRDS+A11VO190LRDS480 mm400 mm35 mm426 mm447 mm2.5 mm - 3 mm
A11VO210EP2S/11R-NSD12K17H-S130 mm90 mm16 mm104 mm120 mm1 mm - 2.5 mm
A11VO95LRDS/10R+A11VO95LRDS/10R65 mm40 mm10 mm45 mm56.8 mm0.6 mm - 1.5 mm
A11VO95LR3DS/10R-NZD12N00R295 mm200 mm35 mm238 mm258 mm2 mm - 3 mm
A11VO190LRDS-11+A11VO190LRDS-11-K220 mm160 mm25 mm181 mm198 mm1.5 mm - 2.5 mm
A11VO130LRCS+A10VO45DFLR95 mm35 mm15 mm57 mm73 mm - 0.6 mm3 mm
A11VO60DRS/10R-NPC12N310 mm250 mm25 mm267 mm289 mm2 mm - 2.5 mm
A11VO75LRDC/10R-NZD12K04165 mm80 mm22 mm117 mm132 mm - 1 mm3 mm
A11VO75LRDU2/10R-NZD12K07220 mm170 mm20 mm183 mm203 mm1.5 mm - 2.5 mm

What is the difference between fixed and variable pumps?May 9, 2019 — Variable displacement axial piston pumps use a swashplate to guide the pistons as they reciprocate while rotating about the shaft's axis.

How Does a Hydraulic Piston Pump Work? - Panagon SystemsJul 28, 2020 — An axial pump uses a propeller to push fluid along the axis in a spiral motion. These unique pumps are common in aerospace and marine Axial Piston Pump Design - Online Hydraulic Training CoursesJun 13, 2022 — In variable displacement pumps the swash plate, or angle of the bent axis is changed. As the angle reduces the stroke of the piston reduces and 

The Basics Of Variable Displacement Pump Controls - CrossCoThe amount of flow that each pump can provide is dependent on a rotating group of pistons. By varying the stroke of the pistons, we adjust the displacement of Engineering Essentials: Fundamentals of Hydraulic PumpsThe fluid delivered by a screw pump does not rotate, but moves linearly. The rotors work like endless pistons, which continuously move forward.

Variable-displacement Pump Control Basics | Engineering360Sep 19, 2016 — Here, a heavy spring and piston are used to operate the swash plate. System pressure flows against one side of an internal piston, which is held Operating principle of the variable displacement axial piston 2. In total, n p pumping pistons are nested in the barrel, and they can slide on the swash plate surface. When the bar- rel is driven (