Variation of Piston Friction Force and Ring Lubricating Condition in a Diesel Engine with EGR

Urabe, Mitsuru; Tomomatsu, Takashi; Ishiki, Kazuya; Takiguchi, Masaaki; Someya, T.

doi:10.4271/982660

Cited by 3 publications

(6 citation statements)

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“…In overcoming the design challenges discussed above, researchers have adopted a range of designs in floating-liner equipment [14,35,46,[54][55][56][59][60][61][62][63][64]. In this section, various approaches to designs have been examined and classified into three categories named Alpha, Beta, and Gamma.…”

Section: Discussion: Major Configurations Of Floating-liner Techniquesmentioning

confidence: 99%

“…This led to the balancing of the gas forces. This design was developed and used by many other researchers [33][34][35][36][37][38][39]. An alternative solution is to seal the cylinder by extending the cylinder head into the cylinder and fitting a sealing element, such as an O-ring, as illustrated in Figure 3 and adopted by Cerrato et al [40].…”

Section: O-ring Sealsmentioning

confidence: 99%

“…The most common way found in the literature is the introduction of a step, slope, or groove in the upper end of the liner [33][34][35][36][37][38][39]. This design is shown in Figure 8.…”

Section: Liner Geometry Force Balancingmentioning

confidence: 99%

“…For example, if one wants to investigate the effect of blow-by gases on the friction between the piston rings and the liner, as in Reference [54], firing will be the only option. Another example is the study of the effect of the EGR on the friction between piston-ring and liner, as in Reference [35]. However, firing requires a more sophisticated design and engine modifications.…”

Section: Design Challenges Associated With Firing Operation Of the Flmentioning

confidence: 99%

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A Critical Review of Approaches to the Design of Floating-Liner Apparatus for Instantaneous Piston Assembly Friction Measurement

et al. 2021

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Several approaches have been developed to measure instantaneous friction between the piston assembly and cylinder in internal combustion (IC) engines, such as floating-liner, reciprocating liner, instantaneous mean effective pressure (IMEP), fixed sleeve, and (P-ω) method and tribological bench tests. However, the “floating-liner method” and the “(IMEP) method” are the most common methods used to measure instantaneous friction between the piston assembly and IC engines. This paper critically evaluates different approaches to the design of the “floating-liner”. The paper begins by discussing piston assembly frictional losses and their significance and then discuss the development of instantaneous piston-friction measurements. After that, it reviews the main design challenges in the floating-liner approach. “Methods of cylinder sealing” and “force balancing methods” are also reviewed. Design challenges associated with firing operation were presented. Floating-liner designs were classified into different categories with a detailed presentation of the features of each. The paper ends by presenting a range of broad recommendations for further work which would benefit future designs.

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Section: Discussion: Major Configurations Of Floating-liner Techniquesmentioning

confidence: 99%

Section: O-ring Sealsmentioning

confidence: 99%

“…The most common way found in the literature is the introduction of a step, slope, or groove in the upper end of the liner [33][34][35][36][37][38][39]. This design is shown in Figure 8.…”

Section: Liner Geometry Force Balancingmentioning

confidence: 99%

Section: Design Challenges Associated With Firing Operation Of the Flmentioning

confidence: 99%

See 2 more Smart Citations

A Critical Review of Approaches to the Design of Floating-Liner Apparatus for Instantaneous Piston Assembly Friction Measurement

et al. 2021

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show abstract

“…The researchers at the Musashi Institute of Technology conducted a series of experiments to try to understand the causes of the abnormal wear in diesel engines with EGR. They found that the acid components in the EGR gas may result in ring wear for the given fuel tested (Furuhama et al, 1991;Urabe et al, 1998;Ishiki et al, 2000).…”

Section: Impact Of Sulfur On Corrosive Wearmentioning

confidence: 99%

Durability and reliability in diesel engine system design

Xin¹

2013

Diesel Engine System Design

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A New Floating-Liner Test Rig Design to Investigate Factors Influencing Piston-Liner Friction

Law¹,

MacMillan²,

Shayler³

et al. 2012

SAE Technical Paper Series

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Variation of Piston Friction Force and Ring Lubricating Condition in a Diesel Engine with EGR

Cited by 3 publications

References 0 publications

A Critical Review of Approaches to the Design of Floating-Liner Apparatus for Instantaneous Piston Assembly Friction Measurement

A Critical Review of Approaches to the Design of Floating-Liner Apparatus for Instantaneous Piston Assembly Friction Measurement

Durability and reliability in diesel engine system design

A New Floating-Liner Test Rig Design to Investigate Factors Influencing Piston-Liner Friction

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