Automatic gear pump filling machine with single nozzle, Cambrian machinery
COMMENTS
Research and design of internal meshing gear pump separating ...
Therefore, the development and design of high-pressure internal gear pumps are still an important research direction in the current gear pump field 3.
An Investigation of External Gear Pump Efficiency and Stribeck Values
This paper presents an experimental study of external gear pump efficiency based upon an analysis of the Stribeck values.
Methodology for the Evaluation of Gear Pump Performance
Abstract. Currently, most performance curves of gear pumps present volumetric efficiency as a function of one or more operating conditions. However, the nature of gear pumps is that volumetric efficiency is dependent on pump speed, pump pressure rise, and fluid viscosity. This dependency on multiple parameters impedes direct comparisons between pumps tested at disparate operating conditions or ...
gear pump Latest Research Papers
This paper presents the results of simulation studies of leakages in axial and radial gaps in an external gear pump carried out for different gap shapes and sizes, as well as various operating parameters. To investigate the processes that affect pump efficiency and visualize the fluid flow phenomena during the pump's operation, a CFD model ...
Flow characteristics of external gear pumps considering trapped volume
This article investigates the volume change law of trapped fluid in the meshing process and the flow characteristics of external gear pumps under the following two cases: the pump design with and without relief groove.
Gear Pump Root Cause Failure Analysis Using Vibrations ...
In this paper, gear pump failure because of bush bearing looseness is investigated. Vibrations analysis is one of the main manners of the diagnosis of mechanical failure. After bearing looseness, gears clearance is changed because of change between gears' clearances. Time signal, spectrum velocity, spectrum accelerations, envelope velocity, and envelope accelerations are methods of ...
Performance reliability evaluation of high‐pressure internal gear pump
With the development of the high-end equipment technology, the performance requirements of the internal gear pump (IGP) under high pressure are also increasing. However, the increase of working pressure will lead to the instability of gear pump performance in terms of volumetric efficiency, noise, reliability and so on, it is necessary to reasonably evaluate the reliability level of high ...
PDF Design Analysis and Testing of a Gear Pump
A shift from this trend requires the development of locally available technology. The design analysis of a gear pump that aimed at delivering 4.0913x10-4m3/s (24.55litres/min) of oil was carried out in this work. Available technology was utilized in the design and fabrication of the external gear pump.
Cavitation and Pulsation Reduction for External Gear Pumps Using Novel
Abstract. Fluid starvation and congestion at the meshing area of external gear pumps (EGP) happen inevitably as an intrinsic nature of these pumps. As a result, cavitation and excessive pressure pulsation are the two significant issues suffering the pump performance at almost any pump speed. Increasing speed or differential pressure exacerbates the situation, resulting in excessive noise ...
Applied Methodology for Designing and Calculating a Family of Spur Gear
The paper presents in an applicative manner a parameter-based methodology about design, modeling and optimization of a spur gear pump, currently under production in a Romanian company. Wanting to expand their product range, the company asked for a parameter-based design of this type of pump, FEM simulations and optimization of its conception to cover a wider range of flow rates, as required by ...
Symmetry
As a hydraulic pump is the power source of a hydraulic system, predicting its remaining useful life (RUL) can effectively improve the operating efficiency of the hydraulic system and reduce the incidence of failure. This paper presents a scheme for predicting the RUL of a hydraulic pump (gear pump) through a combination of a deep convolutional autoencoder (DCAE) and a bidirectional long short ...
EXPERIMENTAL ANALYSIS OF EXTERNAL GEAR PUMPS WITH ...
This paper presents an experimental study for the comparison of flow characteristics and dynamics of gear pumps with symmetric and asymmetric spur gears.
Energies
Special Issue Information. Dear Colleagues, Positive displacement pumps and motors are key components and play a relevant role in determining the efficiency of fluid power systems. Especially nowadays, when the typical low efficiency levels of fluid power systems are under severe analysis and critics, the attention and interest of researchers ...
Internal Gear Pump Design
In order to add a new topic to this systematic analysis, in this paper we consider the internal involute-gear pump. family. In particular this kind of pumps seems to have a limited f low rate ...
Research paper A comparison of helical and spur external gear machines
This paper tackles the problem of determining the best design among spur type and helical type external gear pumps, with involute teeth. For this purpose, a multi-object design optimization procedure has been developed for the design optimization of helical external gear pumps operating at any number of operation conditions.
PDF Applied Methodology for Designing and Calculating a Family of Spur Gear
The paper presented an applied methodology for the manufacture of a family of pumps, as well as for calculating the power and torque required for the electric drive motor, the forces involved in the operation of the pump, the dimensions of its components, etc.
PDF Fundamentals of External Gear Pump Design
point for a gear pump design. The scope of this report includes the quantitative and qualitative parameters and metrics to define pump performance, design of individual pump components, some of the critical mutual dependencies of those components, pu mp fabrication, and the integration and testing of a gear pump prototype.
Optimization of Relevant Design Parameters of External Gear Pumps
The paper presents the computational fluid dynamics simulation of an external gear pump for fluid power applications. The aim of the study is to test the capability of the model to evaluate the pressure in a tooth space for the entire shaft revolution and the minimum inlet pressure for the complete filling. The model takes into account the internal fluid leakages and two different ...
Research on Identification Method of Wear Degradation of External Gear
As a kind of hydraulic power component, the external gear pump determines the performance of the entire hydraulic system. The degradation state of gear pumps can be monitored by sensors. Based on the accelerated life test (ALT), this paper proposes a method to identify the wear degradation state of external gear pumps based on flow field analysis.
Research on the Fault Diagnosis Method of an Internal Gear Pump Based
The raw signals produced by internal gear pumps are susceptible to noises brought on by mechanical vibrations and the surrounding environment, and the sample count collected during the various operating periods is not distributed evenly. Accurately diagnosing faults in internal gear pumps is significantly complicated by these factors. In light of these issues, accelerated life testing was ...
Vibration and dynamic loads in external gear pumps
The intrinsic noise of the external gear pump is mainly dependent from the vibrations and dynamic loads on the gears [1]. These dynamic loads are transmitted through the bearings on the pump housing and cause vibrations and noise. In the paper the dynamical loads in an external gear pump have been evaluated by digital simulation of a dynamic model.
ASSEMBLY DESIGN OPTIMIZATION FOR GEAR PUMP HYDRAULIC UNITS
This paper presents a model for gear pump assembly design realized in Solid Edge V20. The aim is to highlight modelling aspects for solid part components and how to achieve an assembly from ...
PDF Lesson 1: Gear Pump Basics
The rate of flow of a gear pump is the quantity of fluid actually delivered per unit of time, including both the liquid and any dissolved or entrained gases, at stated operating conditions.
IMAGES
VIDEO
COMMENTS
Therefore, the development and design of high-pressure internal gear pumps are still an important research direction in the current gear pump field 3.
This paper presents an experimental study of external gear pump efficiency based upon an analysis of the Stribeck values.
Abstract. Currently, most performance curves of gear pumps present volumetric efficiency as a function of one or more operating conditions. However, the nature of gear pumps is that volumetric efficiency is dependent on pump speed, pump pressure rise, and fluid viscosity. This dependency on multiple parameters impedes direct comparisons between pumps tested at disparate operating conditions or ...
This paper presents the results of simulation studies of leakages in axial and radial gaps in an external gear pump carried out for different gap shapes and sizes, as well as various operating parameters. To investigate the processes that affect pump efficiency and visualize the fluid flow phenomena during the pump's operation, a CFD model ...
This article investigates the volume change law of trapped fluid in the meshing process and the flow characteristics of external gear pumps under the following two cases: the pump design with and without relief groove.
In this paper, gear pump failure because of bush bearing looseness is investigated. Vibrations analysis is one of the main manners of the diagnosis of mechanical failure. After bearing looseness, gears clearance is changed because of change between gears' clearances. Time signal, spectrum velocity, spectrum accelerations, envelope velocity, and envelope accelerations are methods of ...
With the development of the high-end equipment technology, the performance requirements of the internal gear pump (IGP) under high pressure are also increasing. However, the increase of working pressure will lead to the instability of gear pump performance in terms of volumetric efficiency, noise, reliability and so on, it is necessary to reasonably evaluate the reliability level of high ...
A shift from this trend requires the development of locally available technology. The design analysis of a gear pump that aimed at delivering 4.0913x10-4m3/s (24.55litres/min) of oil was carried out in this work. Available technology was utilized in the design and fabrication of the external gear pump.
Abstract. Fluid starvation and congestion at the meshing area of external gear pumps (EGP) happen inevitably as an intrinsic nature of these pumps. As a result, cavitation and excessive pressure pulsation are the two significant issues suffering the pump performance at almost any pump speed. Increasing speed or differential pressure exacerbates the situation, resulting in excessive noise ...
The paper presents in an applicative manner a parameter-based methodology about design, modeling and optimization of a spur gear pump, currently under production in a Romanian company. Wanting to expand their product range, the company asked for a parameter-based design of this type of pump, FEM simulations and optimization of its conception to cover a wider range of flow rates, as required by ...
As a hydraulic pump is the power source of a hydraulic system, predicting its remaining useful life (RUL) can effectively improve the operating efficiency of the hydraulic system and reduce the incidence of failure. This paper presents a scheme for predicting the RUL of a hydraulic pump (gear pump) through a combination of a deep convolutional autoencoder (DCAE) and a bidirectional long short ...
This paper presents an experimental study for the comparison of flow characteristics and dynamics of gear pumps with symmetric and asymmetric spur gears.
Special Issue Information. Dear Colleagues, Positive displacement pumps and motors are key components and play a relevant role in determining the efficiency of fluid power systems. Especially nowadays, when the typical low efficiency levels of fluid power systems are under severe analysis and critics, the attention and interest of researchers ...
In order to add a new topic to this systematic analysis, in this paper we consider the internal involute-gear pump. family. In particular this kind of pumps seems to have a limited f low rate ...
This paper tackles the problem of determining the best design among spur type and helical type external gear pumps, with involute teeth. For this purpose, a multi-object design optimization procedure has been developed for the design optimization of helical external gear pumps operating at any number of operation conditions.
The paper presented an applied methodology for the manufacture of a family of pumps, as well as for calculating the power and torque required for the electric drive motor, the forces involved in the operation of the pump, the dimensions of its components, etc.
point for a gear pump design. The scope of this report includes the quantitative and qualitative parameters and metrics to define pump performance, design of individual pump components, some of the critical mutual dependencies of those components, pu mp fabrication, and the integration and testing of a gear pump prototype.
The paper presents the computational fluid dynamics simulation of an external gear pump for fluid power applications. The aim of the study is to test the capability of the model to evaluate the pressure in a tooth space for the entire shaft revolution and the minimum inlet pressure for the complete filling. The model takes into account the internal fluid leakages and two different ...
As a kind of hydraulic power component, the external gear pump determines the performance of the entire hydraulic system. The degradation state of gear pumps can be monitored by sensors. Based on the accelerated life test (ALT), this paper proposes a method to identify the wear degradation state of external gear pumps based on flow field analysis.
The raw signals produced by internal gear pumps are susceptible to noises brought on by mechanical vibrations and the surrounding environment, and the sample count collected during the various operating periods is not distributed evenly. Accurately diagnosing faults in internal gear pumps is significantly complicated by these factors. In light of these issues, accelerated life testing was ...
The intrinsic noise of the external gear pump is mainly dependent from the vibrations and dynamic loads on the gears [1]. These dynamic loads are transmitted through the bearings on the pump housing and cause vibrations and noise. In the paper the dynamical loads in an external gear pump have been evaluated by digital simulation of a dynamic model.
This paper presents a model for gear pump assembly design realized in Solid Edge V20. The aim is to highlight modelling aspects for solid part components and how to achieve an assembly from ...
The rate of flow of a gear pump is the quantity of fluid actually delivered per unit of time, including both the liquid and any dissolved or entrained gases, at stated operating conditions.