Design of rotor profile of internal gear pump for improving fuel efficiency

Bae, Jun Seok; Kim, Chul

doi:10.1007/s12541-015-0014-4

Cited by 16 publications

(11 citation statements)

References 12 publications

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“…Subsequently, Choi et al [38] presented the lobe profile of the inner rotor designed by inserting a circular-arc curve between the hypocycloid and epicycloid curves. A step forward in their calculation program of multiple profiles was developed in Bae and Kim [39] for analysis of performances related to the torque and noise. Figure 9 shows the gear set chosen to improve fuel efficiency with the lowest torque and noise level.…”

Section: Unconventional Profilesmentioning

confidence: 99%

“…Finally, these authors derived a general flow rate formula to be used either circular or non-circular lobes in Yang et al [36]. Kim and the colleagues [37][38][39] had addressed a great amount of work in oil pumps since 2002, from geometry to performance indexes. In their unconventional profiles work Jung et al [37] carried out a theoretical analysis of an outer rotor lobe profile with a combination of various curves (ellipse and involute) and the inner rotor as a function of it.…”

Section: Unconventional Profilesmentioning

confidence: 99%

“…Fluid-structural analysis by using commercial software allowed them to compare theoretical and numerical results with just a 9.3% rate of error. In addition, as presented by Kim and the colleagues [37][38][39], an automatic calculation program allowed calculating the flow rate based on chamber areas.…”

Section: Energy Flow Friction and Stress Index Evaluationmentioning

confidence: 99%

“…Here, under unconventional profiles, Kwak et al [70,71], related to previous works of Kim and the colleagues [37][38][39] and Kwak et al [57], considered the geometric parameters relating to the porting shape and its redesign to improve the performance of flow rate, volumetric irregularity and noise.…”

Section: Manufacturing Clearances and Portingmentioning

confidence: 99%

“…The theoretical background in unconventional profiles and flow rate estimation are properly presented in the works of Tong et al [34] and Yang et al [36]. The specific work of Bae and Kim [39] is a complete reference in performance tests of rotors with unconventional profiles.…”

mentioning

confidence: 99%

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A Review of Gerotor Technology in Hydraulic Machines

2019

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Over the years, numerous investigations have established the gerotor fundamentals. This work aims to provide a complete review of the literature from the last decade, focusing on the articles published in the past five years on gerotor technology in hydraulic machines. The report gives a catalogue of guidelines based on the trochoidal-envelope definition, a background analysis, the worldwide distribution of articles in each continent and country and the most frequently used keywords in the field. The paper identifies state-of-the-art research, and reports on current mainstream ideas. From the historical background, this literature review reports the current approaches in gerotor pumps (geometry and performance approaches, modeling and numerical simulations), orbital motors and new concepts. The report will serve as a guide and a directory for novel engineers working with gerotor technology in hydraulic machines. Another intention of this paper is to disseminate the works of the researchers who use this technology around the world, and to provide a scenario for future international collaboration. The paper gives an account of the disparity between academia and engineering applications. There is currently very little published literature on design and production methodologies for gerotor pumps and orbital motors. Hence, the future goal is to collect recommendations that combine academia and industry expertise to make better use of these extensive studies in the field.

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Section: Unconventional Profilesmentioning

confidence: 99%