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2019-10-18 · General Descriptions Reliable High-Pressure and Long-Life Type This series of high-pressure, swash-plate type pumps was developed for general industrial machinery use and is based upon our long and rich experience. The adoption of the high-load bearings and friction-free contacting mechanism of shoes has achieved high reliability and long life.
Get Price2020-6-30 · The K3VG Series Swash Plate Type Axial Piston Pumps are designed to specifically satisfy the industrial open circuit market where noise, efficiency, controllability and extended pump life are considered to be essential. K3VG Pumps are available in nominal displacements ranging from 3.84 to 34.2 in3/rev (63 to 560 cm3/rev) with various pressure, flow, and combination control options.
Get Price2014-1-13 · KPM Swash Plate Type Axial Piston Pumps Programs for Industrial Vehicles ... swash plate. In particular, the double pump with its tandem ar-rangement, has eliminated a power divider, has an in-
Get Price2017-8-25 · The mechanical vibration of the piston pump has been studied previously. Chen et al. (2006) used a system model to analyse the dynamic vibration of a swash plate type water hydraulic motor. The simulation revealed the vibration characteristics of each component in the motor. However, the research object was a fixed displacement pump, in which the motion of the swash plate was not contained, and the simulation model did not contain the fluid system and the FSIs. Manring and Mehta (2011) showed by a linearised model that reducing the swept volume of the control actuator and increasing the flow gain of the control valve was the most effective way to increase the bandwidth frequency of a piston pump. A kinematic model of a bent-axis pump has been created to predict the variations of the angular velocities and accelerations of the parts of the pump, with the acceleration of the swash plate angle considered as an idealised steady input (Abuhaiba and Olson, 2010). Bahr et al. (2003) built a model to study the vibration of an electrically constant power controlled piston pump with the angle of the swash plate …
Get PriceA spring pushes the pistons against a stationary swash plate, which sits at an angle to the cylinder. The pistons suck in fluid during half a revolution and push fluid out during the other half. The greater the slant the further the pump pistons move and the more fluid they transfer.
Get Price2018-8-10 · K3VLS Series Swash Plate Type Axial Piston Pump Specifications, General Descriptions, and Features 10 1. Ordering Code 1-1. Pump Options 11 1-2. Regulator Options 12 2. Technical Information 2-1. Specifications 13 2-2. Functional Description of Regulator Load Sensing and Pressure Cut-off 14 Torque Limiter 15 Torque Limiter with Power Shift 17 3.
Get PriceThe swash plate pump is a long-known design, cf. /1/. Because of wear problems in earlier development stages, high quantities were only reached in the last few decades. Today, the swash plate design is deemed to be the most significant hydrostatic piston machine /2/, /3/.
Get Priceon the pump control cylinder due to the piston forces applied on the swash plate and generating a moment M Sx about x – axis of the swash plate, see Fig. 3. The swash plate moment M Sx depends on system pressure, shaft speed, piston friction forces, viscosity, tempera-ture, and swash plate angle. It is mainly influenced by cylinder pressure p ...
Get Price2016-3-16 · In this paper, dynamic analyses of the swash plate vibration and pressure pulsation of an aircraft piston pump based on fluid-structure interactions (FSIs) are presented. Models of the swash plate piston pumps with three FSIs (named full FSIs and non FSI) are given. The simulation results of the discharge pressures at different rotation speeds in the synthesized pump model and experiments …
Get Price2021-5-31 · Nachi piston pump Nachi PVS Series Half-cylindrical swash plate for low noise and low pulsationRich set of options to enable highly efficient, energy-saving equipment. Nachi PZS Series Half-cylindrical swash plate and 11 pistons for low noise and low pulsationSpherical valve plate for high efficiencyMultiple string option with our IPH series…
Get Price2018-8-10 · K3VLS Series Swash Plate Type Axial Piston Pump Specifications, General Descriptions, and Features 10 1. Ordering Code 1-1. Pump Options 11 1-2. Regulator Options 12 2. Technical Information 2-1. Specifications 13 2-2. Functional Description of Regulator Load Sensing and Pressure Cut-off 14 Torque Limiter 15 Torque Limiter with Power Shift 17 3.
Get PriceThe Swash Plate block models a single, piston-actuated swash plate within an axial-piston pump. It translates linear actuation into rotational motion that, when connected to the Valve Plate Orifice (IL) block, periodically connects the piston with the pump intake and discharge. You can connect multiple swash plate blocks to multiple pistons.
Get PriceThe invention provides means to resist piston thrust of an axial piston rotary pump/motor as applied to a tiltable rotary swash plate. The said means comprises a ring of several hydrostatic thrust pads pressurised from the pump/motor working pressure via impedances and applying hydraulic pressure to an annular plate on the base of the swash plate.
Get PriceThis study investigates the oscillations of swash plates caused by piston forces acting on the swash plate. Earlier investigations of variable axial piston pumps assume a fixed swash plate angle ...
Get Price2011-11-22 · In an axial piston pump design, the swash plate plays an important role in controlling the displacement of the pump, especially in a closed loop system. In this paper, the axial piston pump is incorporated into the design of a hydraulic regenerative braking system for hybrid vehicles. The pump in this configuration should function in dual mode ...
Get Price1991-3-27 · Title: Swash plate type axial piston pump. United States Patent 5105723. Abstract: A swash plate type axial piston pump having a valve plate along which a cylinder block slides. The valve plate has an intake port and a discharge port, respectively positioned on a small pitch circle. Oil passages are slanted extending from the intake port and ...
Get Price2016-3-16 · In this paper, dynamic analyses of the swash plate vibration and pressure pulsation of an aircraft piston pump based on fluid-structure interactions (FSIs) are presented. Models of the swash plate piston pumps with three FSIs (named full FSIs and non FSI) are given. The simulation results of the discharge pressures at different rotation speeds in the synthesized pump model and experiments …
Get Price2021-5-31 · Nachi piston pump Nachi PVS Series Half-cylindrical swash plate for low noise and low pulsationRich set of options to enable highly efficient, energy-saving equipment. Nachi PZS Series Half-cylindrical swash plate and 11 pistons for low noise and low pulsationSpherical valve plate for high efficiencyMultiple string option with our IPH series…
Get Price2015-8-25 · The swash plate oscillations due to the internal piston forces, however, are significant and will affect the outlet flow pulsations. The pulsation is significant but will not have a major impact on valve plate designs for conventional pumps and motors. Keywords: Fluid power pump, in-line,swash plate, noise, flow pulsation 1. INTRODUCTION
Get Price2018-7-5 · A loud noise is emitted by the pump from different noise sources, and the leakages across different friction interfaces, i.e., the piston/cylinder interfaces, slipper/swash-plate interfaces and cylinder/valve-plate interface, have impacts on the noise sources because the pressure build-up in the piston chamber depends on them [].To fully capture the leakages across the friction pairs, special ...
Get PriceSwash plate, axial piston pump, chamber pressure, silencing grooves, instantaneous flow rate. 1. INTRODUCTION Various aspects of the static and dynamic characteristics of constant and variable ...
Get Price2020-6-26 · Lubrication characteristics of the slipper–swash-plate interface in a swash-plate-type axial piston pump Xiangxu Meng, Chang Ge, Hongxi Liang, Xiqun Lu, and Xuan Ma Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science …
Get Price2010-5-16 · 2. Piston pump according to the different ways of assignment can be divided into swash plate (straight shaft), and Cline. The advantages of piston pump: 1. Parameter High: Rated high pressure, high speed, large power-driven pump. 2. Efficiency, volumetric efficiency is 95% of the total efficiency of about 90%. 3. Long life.
Get Price2015-10-1 · In this paper both the volumetric displacement and the shaft speed of a variable displacement swash-plate type piston pump were varied in order to minimize power consumption in supplying constant-pressure oil to a valve-controlled hydraulic cylinder, particularly during idle modes. At operating modes which were launched by position command inputs, the pump speed was varied by a pressure ...
Get PriceSwash plate pump. Construction design of an axial piston pump, in which the swash plate and the control disc are firmly connected to the drive shaft and rotate with it, while the cylinder block, which is firmly connected to the housing, does not rotate ( Figure T 5 ). The pistons are arranged on the swash plate providing the lifting impetus.
Get Price2018-8-10 · Swash-plate Axial Piston Pump K3VL B Series General Descriptions The K3VL Series Swash Plate Type Axial Piston Pumps are designed to satisfy the marine, mobile and industrial markets where a medium/high pressure variable displacement pump is required. K3VL Pumps are available in nominal displacements ranging from 28 to 200 cm3/rev with various
Get PriceThe Swash Plate block models a single, piston-actuated swash plate within an axial-piston pump. It translates linear actuation into rotational motion that, when connected to the Valve Plate Orifice (IL) block, periodically connects the piston with the pump intake and discharge. You can connect multiple swash plate blocks to multiple pistons.
Get Price2019-2-19 · An axial piston swash plate pump with improved energy and dynamic characteristics was designed [2]. The present hydraulic machine has reduced energy consumption compared to analogues. As a rule, in that kind of pumps a ball and socket joint that connects a piston body to a slipper, is coaxial with the piston body. In that case transverse force ...
Get Price2021-2-1 · Swash-plate Axial Piston Pump General Descriptions The K3VL series Swash Plate Type Axial PIston Pumps are designed to satisfy the marine, mobile and industrial markets where a medium/high pressure variable displacement pump is required. K3VL pumps are available in nominal displacements ranging from 28 to 200 cm3/rev with various pressure,
Get PriceThe Swash Plate block is a model of a swash plate mechanism used in axial-piston hydraulic pumps and motors to convert translational motion of a piston into rotational motion of a drive shaft. The mechanism is a combination of a cylinder block or rotor, with the piston fitted inside, and an angled swash plate.
Get Price2006-5-1 · The vibration energy transmission characteristics from the cylinder to a swash-plate within an axial piston pump had been studied . Qi and Lu investigated the vibration of oil hydraulic axial piston pumps. Investigations showed that the main source of vibration is the impact between the slipper and swash plate when the piston/slipper moved into ...
Get Price2021-6-6 · the swash plate pivot Cd coefficient of discharge dn normal distance of the n th piston away from the centerline of the pump shaft e offset dimension of the swash plate pivot baln F force exerted on the slipper from the effective pressurized area on the face of nth slipper Bn F force exerted on the cylinder block from the piston-bore spring c n
Get Price2020-10-13 · Torque on the cylinder block of an axial-piston swash-plate type hydrostatic pump Noah Denver Manring Iowa State University Follow this and additional works at:https://lib.dr.iastate.edu/rtd Part of theAgriculture Commons,Bioresource and Agricultural Engineering Commons, and the
Get Price2021-6-4 · Swash Plate Piston Pump, including cavitation, leakage and detailed features. YouTube. Simerics Inc. 321 subscribers. Subscribe. PumpLinx CFD Simulation Swash Plate Piston Pump. Watch later. Copy link. Info.
Get Price2021-6-4 · Swash Plate Piston Pumps: Simerics-MP+ can predict the flow rate, power, efficiency, cavitation damage, parasitic losses, aeration, bubble formation, pressure ripples, leakage, axial loads and side loads in swash plate and bent axis piston pumps and motors.Testimonial
Get Price2021-2-1 · Swash-plate Axial Piston Pump General Descriptions The K3VL series Swash Plate Type Axial PIston Pumps are designed to satisfy the marine, mobile and industrial markets where a medium/high pressure variable displacement pump is required. K3VL pumps are available in nominal displacements ranging from 28 to 200 cm3/rev with various pressure,
Get Price2013-7-3 · T H E A R C H I V E O F M E C H A N I C A L E N G I N E E R I N G VOL. LVIII 2011 Number 2 10.2478/v10180-011-0010-x Key words: modelling, diagnostics, axial piston pump, swash plate, signal analysis, vibration measurement WALDEMAR ŁATAS , JERZY STOJEK
Get PriceA spring pushes the pistons against a stationary swash plate, which sits at an angle to the cylinder. The pistons suck in fluid during half a revolution and push fluid out during the other half. The greater the slant the further the pump pistons move and the more fluid they transfer.
Get Price1991-3-27 · Title: Swash plate type axial piston pump. United States Patent 5105723. Abstract: A swash plate type axial piston pump having a valve plate along which a cylinder block slides. The valve plate has an intake port and a discharge port, respectively positioned on a small pitch circle. Oil passages are slanted extending from the intake port and ...
Get Price2008-1-30 · Swash Plate vs. Bent Axis Introduction: Linde has developed new technology to overcome limitations restricting swash plate piston pump and motor design for more than three decades. These breakthroughs have enabled the swash plate design to surpass that of the bent axis in virtually every area of performance. The long recognized power
Get PriceThe swash plate angle can be changed by pivoting the yoke on pintles. The positioning of the yoke can be accomplished by manual operation, servo control or a compressor control and the maximum swash plate angle is usually limited to 17.5° (Figure 3.18). Radial piston pump. These piston pump types have pistons aligned radially on the cylinder ...
Get PriceIn variable displacement axial piston pumps and motors, the rotation of the barrel causes a strong vibrating torque load on the variable displacement components, that is, on the swash plate. In most analysis, this vibrating torque is counteracted by a mechanical end stop, thereby forcing a constant swash plate angle. However, in real pump and motor operation, the swash plate is not held ...
Get Price2006-9-22 · HPV Closed Loop Pump Mechanical-hydraulic Control (cam plate feature) Type HPV - 02 variable pumps are axial piston pumps of swash plate design with variable displacement for hydrostatic transmissions (HST) in closed loop applications. The HPV - 02 pump described in this report is equipped with an M1 type cam control.
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