hydraulic piston pump valve plate design

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Valve-Plate Design for an Axial Piston Pump

2003-3-1  In this perspective, a cavitation-free optimal design of an axial-piston pump with cross-port valve plate has been taken up in the present paper by updating the modelling due to Mandal et al. [13].

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: Noah Manring

A study on the optimum design for the valve plate of

2015-6-12  Hydraulic piston pump Valve plate Stress analysis Finite element method Optimum design Recommended by Editor Dongshin Shin Ihn-Sung Cho is currently a director at Technical Institute of Handok Elevator Co., Ltd. and an adjunct professor at Chonbuk National University.

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Cited by: 18

Valve-Plate Design for an Axial Piston Pump

The objectives of this research are to investigate the principal advantages of using various valve-plate slot geometries within an axial piston pump. In particular, three types of geometries are considered: a constant area slot geometry, a linearly varying slot geometry, and a quadratically varying slot geometry.

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Impact of Valve Plate Design on Noise, Volumetric .

In designing an axial piston pump, lot of attention is given to the design of the valve plate. A well designed valve plate can reduce both flow pulsations as well as oscillating forces on the swash plate. In the presented study, a computational tool, CASPAR, has been used for investigating the effect of valve plate design on flow ripple (fluid .

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Cited by: 19

Computational Valve Plate Design in Axial Piston

Many industries utilize axial piston machines for the compact design, highoperating pressures, variable displacements, and high efficiencies that faroutweigh the machines’ manufacturing costs. For all axial piston machines,the valve plate functions as an essential determinant of performance. Theaim of this research is to develop a design methodology generalizable to alltypes of valve plates .

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Author: Paul Kenneth Kalbfleisch, Monika Ivantysynova

Axial piston pump and improved valve plate design

FIG. 2 is a front plan view (from the left in FIG. 1) of a typical "prior art" valve plate of the type used in the axial piston pump of FIG. 1. FIG. 3 is a front plan view of one embodiment of the valve plate of the present invention, on a smaller scale than FIG. 2, and including a graphical representation of the pressure-displacement relationship.

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Valve plate for axial hydraulic piston pump or motor .

I claim: 1. A valve plate used in an axial hydraulic piston pump/motor which is made of a hardened material where the mass of the front side of the valve plate and the mass of the backside of the valve plate are equal within design tolerance limitations and said masses are equally distributed over the surfaces of the front and back side of the valve plate.

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Cited by: 3

Application of SimulationX -based Optimization

2018-7-6  Application of SimulationX®-based Optimization Technique to Valve-Plate Notch Design of Variable Swash-Plate Type Axial Piston Pump San Seong Lee 1, Won Jee Chung, Jun Rak Hong, Soo Tae Kim1, Jeong Sil Lee2 1School of Mechatronics, Changwon National University, Changwon-si, Gyeongsangnam-do, South Korea 2Segae Hydraulic, Changwon-si, Gyeongsangnam-do, South Korea

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A new design method for the transition region of the

2017-8-26  racy and can be used to guide the design of the valve plate (Ma et al., 2010; Xu et al., 2013). 3 Mechanism of axial piston pump noise emission Axial piston pump noise includes fluid noise and structure noise. The flow pulsations in the discharge line of the axial piston pump

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A new design method for the transition region of the

racy and can be used to guide the design of the valve plate (Ma et al., 2010; Xu et al., 2013). 3 Mechanism of axial piston pump noise emission Axial piston pump noise includes fluid noise and structure noise. The flow pulsations in the discharge line of the axial piston pump

Get Price

Valve-Plate Design for an Axial Piston Pump

In this perspective, a cavitation-free optimal design of an axial-piston pump with cross-port valve plate has been taken up in the present paper by updating the modelling due to Mandal et al. [13].

Get Price

Computational Valve Plate Design in Axial Piston

Many industries utilize axial piston machines for the compact design, highoperating pressures, variable displacements, and high efficiencies that faroutweigh the machines’ manufacturing costs. For all axial piston machines,the valve plate functions as an essential determinant of performance. Theaim of this research is to develop a design methodology generalizable to alltypes of valve plates .

Get Price

Hydraulic Piston Pumps - Axial Piston Pumps

Axial piston pump,swash plate design for hydrostatic open circuit system used in varied medidum duty application in industrial mobile machines.Flow is proportional to drive speed and displacement it can be infinitely varied by adjustment of the swash plate ISO mounting flange,flange connection to SAE metric,2 case drain port,good suction characteristics,permissible continuous pressure 280 .

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A study on pressure and flow pulsation of swash plate

A study on pressure and flow pulsation of swash plate type variable piston pump through analysis of pulsation variables and valve plate notch design for automation of hydraulic system Abstract: In order to improve efficiency/productivity and thus facilitate work at industry sites, hydraulic system uses hydraulic fluid and has higher power .

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Noise Reduction of an Axial Piston Pump by Valve

The valve plate utilizing damping holes show excellent performance in avoiding air-release and cavitation. This study aims to reduce the noise emitted from an axial piston pump using a novel valve .

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Analysis of lubricating characteristics of valve plate .

2018-10-1  The wedge-shaped oil film thickness, pressure and temperature distribution of the valve plate pair of an axial piston pump were investigated using finite difference and relaxation iterative methods and lubrication characteristics for different working conditions and tilt and non-tilt states of the cylinder block were analysed for comparison.

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Common Modes of Failure for Hydraulic Piston Pumps .

Heavy cavitation on valve plate. Motion Industries. Pump case over-pressurization can present in the half-moon gouging or full-moon scoring of the swash plate, damaged shoe retainer, bent seal retainer or protruding shaft seals as well as shoe damage—rounded edges, loose fit on the ball and excessive wear on the backs of the shoes.

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Hydraulic-Training Axial Piston Units Basic Principles

2010-7-9  piston stroke, thus allowing variable displacement. 2.1.1 Bent-Axis Principle Description The axial piston units of bent-axis design with fixed or variable displacement can operate as hydraulic pumps or hydraulic motors. 1 = drive shaft 2 = piston 3 = piston area 4 = cylinder 5 = pressure stroke 6 = suction stroke 7 = port plate 8 = upper dead .

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Hydraulic Pump Noise Reduction - Mobile Hydraulic

In an axial piston pump with swashplate, pistons rotate together with the cylinder block according to the drive speed of the shaft. (Nine pistons are shown in the example below.) The valve plate ports fluid to and from the pistons: half a rotation with the pressure side and the other 180° with the suction side.

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The Negative Effects of Overpressurization on

2020-8-16  Valve plate separation is often characterized by vibration or pulsation in the pressure line of the pump or motor combined with erratic machine movement as the cylinder barrel separates and re-couples to the valve plate. Figure 4. Effect of Excessive Case Drain Pressure on Axial Design Piston. Causes of Overpressurization

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Valve-Plate Design for an Axial Piston Pump

In this perspective, a cavitation-free optimal design of an axial-piston pump with cross-port valve plate has been taken up in the present paper by updating the modelling due to Mandal et al. [13].

Get Price

Computational Valve Plate Design in Axial Piston

Many industries utilize axial piston machines for the compact design, highoperating pressures, variable displacements, and high efficiencies that faroutweigh the machines’ manufacturing costs. For all axial piston machines,the valve plate functions as an essential determinant of performance. Theaim of this research is to develop a design methodology generalizable to alltypes of valve plates .

Get Price

Hydraulic Piston Pumps Design Hydraulic Pump

Hydraulic Piston Pumps Design. Piston pumps are either radial or axial. a. Radial. In a radial piston pump (Figure 3-14), the pistons are arranged like wheel spokes in a short cylindrical block. A drive shaft, which is inside a circular housing, rotates a cylinder block. The block turns on a stationary pintle that contains the inlet and outlet .

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US6196109B1 - Axial piston pump and improved

A hydraulic unit of the type including a cylinder block ( 19 ) rotatably disposed adjacent a valve plate ( 51;61 ) having inlet ports 41 a , 41 b , and 41 c , and further having outlet ports 43 a , 43 b , and 43 c . Disposed between the individual inlet and outlet ports are web portions, having nominal cross-sections and flow restrictions.

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Common Modes of Failure for Hydraulic Piston Pumps .

Heavy cavitation on valve plate. Motion Industries. Pump case over-pressurization can present in the half-moon gouging or full-moon scoring of the swash plate, damaged shoe retainer, bent seal retainer or protruding shaft seals as well as shoe damage—rounded edges, loose fit on the ball and excessive wear on the backs of the shoes.

Get Price

Design and Experimental Study of Radial Piston Pump

The hydraulic pump is the core component of the transmission system as the power component. It is also the main research focus in the field of hydraulic transmission in recent years. According to the axis direction of the piston and the drive shaft, the piston pump can be grouped into radial piston pump and axial piston pump.

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Hydraulic-Training Axial Piston Units Basic Principles

2010-7-9  piston stroke, thus allowing variable displacement. 2.1.1 Bent-Axis Principle Description The axial piston units of bent-axis design with fixed or variable displacement can operate as hydraulic pumps or hydraulic motors. 1 = drive shaft 2 = piston 3 = piston area 4 = cylinder 5 = pressure stroke 6 = suction stroke 7 = port plate 8 = upper dead .

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Hydraulic pump construction working Mechanical

Internally their delivery and suction ports are interconnected. Moreover, composite hydraulic pump have relief valve, unload valve and check valve besides rotor and cam ring and delivery rate is changed automatically to provide large capacity when pressure is low and provide small capacity when the pressure is high. Piston hydraulic pump:

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Axial-piston pump keeps it quiet - Mobile Hydraulic Tips

HAWE Hydraulics’ V30D style axial-piston variable-displacement pump is well-suited to demanding mobile hydraulic uses. Its low noise levels, high pressure rating (peak = 420 bar / perm. = 350 bar), low weight/performance ratio and wide controller range make it possible to employ it for most industrial and mobile applications.

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The Negative Effects of Overpressurization on

2020-8-16  Valve plate separation is often characterized by vibration or pulsation in the pressure line of the pump or motor combined with erratic machine movement as the cylinder barrel separates and re-couples to the valve plate. Figure 4. Effect of Excessive Case Drain Pressure on Axial Design Piston. Causes of Overpressurization

Get Price