Kinematics and geometrical admissibility conditions of balanced vane pumps with twin lip vanes

Guerra, Davide; Battarra, Mattia

doi:10.1016/j.mechmachtheory.2021.104534

Cited by 12 publications

(2 citation statements)

References 20 publications

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“…In the process of rotation of the rotor, eddy currents will appear and even noise will be generated. In the final analysis, there is flow pulsation in the pump chamber [20][21][22], and the flow pulsation formula of the rotor is as in Eq.14…”

Section: Resultsmentioning

confidence: 99%

Dynamic mesh simulation flow field and micro-filling experiment analysis of viscous medium transported by two- lobe rotary pump

Enlong,

Runqi,

Bowen

et al. 2024

Preprint

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The current study aimed to explore the conveyance properties exhibited by the rotary lobe pump.To simulate the flow field of a two-lobe rotary pump, the K-ε turbulence model was employed in conjunction with the dynamic mesh technique, and the micro-filling accuracy of pure water and syrup with different viscosity were tested by servo control technique. 3D model of the two-lobe rotary pump was established by CREO, 2D model was meshed by ICEM, and the area near the rotor was meshed encrypted. The effects of medium viscosity on outlet flow characteristics, volumetric efficiency and medium viscosity on pump efficiency and micro-filling accuracy at low rotating speed were discussed. The results show that when the rotor speed is at 25.58 rpm, the flow pulsation is minimal; And the outlet flow rate is increased by 0.533kg/s when the rotor speed increased by 10 rpm. For fluids with low viscosity (ranging from 1 to 100cP), there is a notable increase in volumetric efficiency as the rotational speed rises. Conversely, the volumetric efficiency of medium-viscosity and high-viscosity fluids (spanning 250 to 850cP) is relatively insensitive to changes in rotor speed; When the inlet pressure is increased by 1kPa, the flow rate is increased by 0.127kg/s. In the viscosity range of 1cP-250cP, the flow non-uniformity coefficient decreases continuously, and when the viscosity reaches 450cP, the flow non-uniformity coefficient is almost not affected by the medium viscosity. According to the numerical simulation results, rotor lobe pump is used to carry out the micro-filling accuracy experiment. When filling 25g syrup, the optimal precision could be controlled within 0.6g, and when filling 500ml pure water, the precision could be controlled within 1.2ml. Therefore, the rotor lobe pump driven by servo motor is suitable for the micro-filling requirements of the milk tea industry.

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Section: Resultsmentioning

confidence: 99%

Dynamic mesh simulation flow field and micro-filling experiment analysis of viscous medium transported by two- lobe rotary pump

Enlong,

Runqi,

Bowen

et al. 2024

Preprint

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show abstract

“…Meanwhile, Guerra et al [14] explored the design and performance of a balanced vane pump. They analyzed the kinematics of a double-lip vane pump, including its blade motion trajectory, velocity, and acceleration.…”

Section: Introductionmentioning

confidence: 99%

Optimization Determination Method for the Explicit Equation of Scraper Motion Quantity in an Elliptical Rotor Scraper Pump

Li,

Yin,

Zhang

et al. 2023

Machines

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Addressing the inherent drawbacks of conventional positive displacement pumps, such as complex structure, poor sealing, low volumetric efficiency, and high noise, an innovative design of an elliptical rotor scraper pump (ERSP) was proposed. By segregating the pump chamber into high-pressure and low-pressure cavities, the scraper minimizes operational noise and significantly improves volumetric efficiency. To analyze the motion state of the ERSP, a mathematical model was established, determining the coordinated movement between the scraper and rotor using different optimization methods. The equations of coordinated action were derived and validated with relevant software through constraints applied to three algorithms and polynomial fitting. The flow field model of the ERSP was defined based on the established coordinated movement equation, and computational fluid dynamics (CFD) simulations were conducted to analyze pressure and velocity fields within the pump. A prototype of the ERSP was fabricated and tested, confirming its feasibility and advantages in enhancing fluid pressure and flow speed. This study provides valuable insights into the dynamic characteristics and structural optimization of fluid rotor pumps, contributing to anticipating and resolving potential faults and promoting the development of fluid power machinery.

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Balanced Twin Lip Vane Pumps: A Kinematic Approach to the Design

Guerra

Battarra

Mucchi

et al. 2022

Mechanisms and Machine Science

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Kinematics and geometrical admissibility conditions of balanced vane pumps with twin lip vanes

Cited by 12 publications

References 20 publications

Dynamic mesh simulation flow field and micro-filling experiment analysis of viscous medium transported by two- lobe rotary pump

Dynamic mesh simulation flow field and micro-filling experiment analysis of viscous medium transported by two- lobe rotary pump

Optimization Determination Method for the Explicit Equation of Scraper Motion Quantity in an Elliptical Rotor Scraper Pump

Balanced Twin Lip Vane Pumps: A Kinematic Approach to the Design

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