Robust Optimization of Engine Lubrication System

Wei, Tao; Yuan, Ye; Liu, Eysion A.; Hill, J.D.; Zou, Qian; Barber, Gary C.

doi:10.4271/2007-01-1568

Cited by 12 publications

(3 citation statements)

References 3 publications

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“…1 In addition, compared with transmissions equipped in the passenger vehicles, the transmissions for the heavy duty truck always work under the heavy load with low speed, and the performance of lubrication network is closely related to the safe operation and lifetime of the powertrain system. 2 However, it seems to be both difficult and expensive to solve the lubrication problems when the transmission development program reaches the testing stage; therefore, an analytical method based on simulation way might offer a considerable solution for this problem. 3 The ability to analyze lubrication characteristics by simulation method is important during the process of commercial vehicle powertrain development, as it can help the manufacturer to avoid serious design defects without using expensive and time-consuming laboratory tests.…”

Section: Introductionmentioning

confidence: 99%

Optimized design of the flow network in the lubrication system for the heavy vehicle transmission

Jiang³

et al. 2017

Advances in Mechanical Engineering

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An accurate simulation model of the lubrication system is essential for early design of the heavy truck transmission. In this article, a detailed computational method for the flow network analysis of the lubrication circuit is developed based on the hydraulic theory, and the flow resistance through the oil pipes and orifices is also taken into consideration. Then, the Next Limit Technologies' XFlow, a potential new three-dimensional computational fluid dynamics software based on lattice Boltzmann method, is adopted to obtain the relationship between the oil delivery and the lubrication effect in the low-pressure capillary lubrication network of the rear auxiliary gearbox. To achieve the best overall lubricating performance of the flow network, the optimized design of the diameter for each oil supply orifice is determined by a detailed sensitivity analysis on the contribution of each parameter to the volumetric flow rate. The bench tests for the volumetric flow rate have been performed for validating the computation model by comparing the predicted volumetric flow rate through each oil supply bore with the experimental data at various pump speeds. The endurance tests have further conducted and the test results indicate a remarkable reduction in mechanical weariness when the best solution of the flow network design for the transmission lubrication system is adopted.

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Section: Introductionmentioning

confidence: 99%

Optimized design of the flow network in the lubrication system for the heavy vehicle transmission

Jiang³

et al. 2017

Advances in Mechanical Engineering

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“…Thus, friction has a considerable influence on the behavior of a mechanical instrument or an instrument and should be considered in preparing a mechanical instrument or an instrument [1,2]. In particular, studies are actively conducted on minimization of friction and wear occuring in a mechamical instrumet in order to transfer a mechamical instrument more rapidly and accurately [3].…”

Section: Introductionmentioning

confidence: 99%

Automatic Lubrication System for Minimizing Friction of Driving Parts for Large-Sized Commercial Vehicle

Lee

Kim

Lee

et al. 2014

AMR

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One of the causes of malfunction of commercial vehicle is corrosion or wear. In order to prevent corrosion and wear, lubricants have to be supplied periodically. However, the period of lubrication usually depends on operator's judgment. If the period is too short, excess lubricant will cause pollution and unnecessary expenses, whereas long periodic supply of lubricant might cause wear, damage and eventual breakdown. Therefore, an automatic lubrication system with predetermined interval will reduce the excessive supply of lubricating oil and prevent wear and damage. This thesis presents an automatic lubrication system which consists of a lubricant pump and an embedded controller. An automatic lubrication operating algorithm is used to operate the lubricant pump and feedback the pressure status of the system using pressure sensors. The developed system shows an efficient periodic supply of lubricant.

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“…Several researchers tried to address the above issue by using various CAE (computer aided engineering) tools [1][2][3][4][5]. However, due to the complexity, many only focused on the pump only or the lubrication circuit only.…”

Section: Introductionmentioning

confidence: 99%

Engine Lubrication System Analysis and Oil Pump Design Optimization

Zhou¹

2009

Advanced Tribology

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The engine's lubrication system is crucial to engine's durability, NVH and performance etc. Modern engine lubrication system has both lubrication and hydraulic functions. For lubrication, it has to ensure the bearings, piston assembly, cam and tappet interfaces etc. to be all properly lubricated. For hydraulic, it has been used to actuate variable cam timing (VCT) units, cam profile switch (CPS) tappets and hydraulic lash adjusters (HLA) etc. These functional requirements determine the oil pump size and pressure setting, which in turn largely determine the power consumption of the oil pump.In this paper, an analytical approach was adopted to improve the pump performance using advanced 1D and 3D (computational fluid dynamics) simulation on both pump and lubrication circuit.

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Robust Optimization of Engine Lubrication System

Cited by 12 publications

References 3 publications

Optimized design of the flow network in the lubrication system for the heavy vehicle transmission

Optimized design of the flow network in the lubrication system for the heavy vehicle transmission

Automatic Lubrication System for Minimizing Friction of Driving Parts for Large-Sized Commercial Vehicle

Engine Lubrication System Analysis and Oil Pump Design Optimization

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