Benefits of wonder process craft on engine valve train performance

M. Usman Abdullah; Samiur Rahman Shah; M. Usman Bhutta; Riaz Ahmad Mufti; Muhammad Khurram; M. Huzaifa Najeeb; Waseem Arshad; Kiyo Ogawa

doi:10.1177/0954407018760935

Benefits of wonder process craft on engine valve train performance

M. Usman Abdullah
, Samiur Rahman Shah^*
, M. Usman Bhutta
, Riaz Ahmad Mufti
, Muhammad Khurram
, M. Huzaifa Najeeb
, Waseem Arshad
, Kiyo Ogawa

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

9 Citations (Scopus)

Abstract

The performance and durability of tribological components in roller follower valve train is governed mainly by the roller rotational behaviour. Pure rolling of roller on the camshaft surface is essential to achieve the optimum valve train efficiency. The increase in roller slip can lead to high valve train power loss due to increase in sliding friction and can increase the wear rate of mating surfaces of camshaft and roller. In this research work, a modern gasoline engine having end-pivoted roller finger follower valve train configuration has been instrumented to investigate the effects of Wonder Process Craft surface treatment on roller slip. Comprehensive test programme has been undertaken at transient camshaft speeds by employing the New European Drive Cycle under different oil temperatures and pressures. Remarkable reduction in roller slip was recorded for Wonder Process Craft surface treated roller as compared to the original unmodified roller indicating its strong potential of employment in engine valve train. The test rig, surface treatment of roller, instrumentation, experimentation, results and discussion have been presented in detail in this paper.

Original language	English
Pages (from-to)	1125-1135
Number of pages	11
Journal	Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Volume	233
Issue number	5
DOIs	https://doi.org/10.1177/0954407018760935
Publication status	Published - 1 Apr 2019

Bibliographical note

Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Pakistan Science Foundation (PSF), for the development of engine head test rig, and Fuji Manufacturing Co., Ltd, Japan, for surface treatment of the rollers.

Publisher Copyright:
© IMechE 2018.

Keywords

cam roller interface
drive cycle
Engine valve train
roller sliding
surface treatment
Wonder Process Craft

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title = "Benefits of wonder process craft on engine valve train performance",

abstract = "The performance and durability of tribological components in roller follower valve train is governed mainly by the roller rotational behaviour. Pure rolling of roller on the camshaft surface is essential to achieve the optimum valve train efficiency. The increase in roller slip can lead to high valve train power loss due to increase in sliding friction and can increase the wear rate of mating surfaces of camshaft and roller. In this research work, a modern gasoline engine having end-pivoted roller finger follower valve train configuration has been instrumented to investigate the effects of Wonder Process Craft surface treatment on roller slip. Comprehensive test programme has been undertaken at transient camshaft speeds by employing the New European Drive Cycle under different oil temperatures and pressures. Remarkable reduction in roller slip was recorded for Wonder Process Craft surface treated roller as compared to the original unmodified roller indicating its strong potential of employment in engine valve train. The test rig, surface treatment of roller, instrumentation, experimentation, results and discussion have been presented in detail in this paper.",

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note = "Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Pakistan Science Foundation (PSF), for the development of engine head test rig, and Fuji Manufacturing Co., Ltd, Japan, for surface treatment of the rollers. Publisher Copyright: {\textcopyright} IMechE 2018.",

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AU - Abdullah, M. Usman

AU - Shah, Samiur Rahman

AU - Bhutta, M. Usman

AU - Mufti, Riaz Ahmad

AU - Khurram, Muhammad

AU - Najeeb, M. Huzaifa

AU - Arshad, Waseem

AU - Ogawa, Kiyo

N1 - Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Pakistan Science Foundation (PSF), for the development of engine head test rig, and Fuji Manufacturing Co., Ltd, Japan, for surface treatment of the rollers. Publisher Copyright: © IMechE 2018.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - The performance and durability of tribological components in roller follower valve train is governed mainly by the roller rotational behaviour. Pure rolling of roller on the camshaft surface is essential to achieve the optimum valve train efficiency. The increase in roller slip can lead to high valve train power loss due to increase in sliding friction and can increase the wear rate of mating surfaces of camshaft and roller. In this research work, a modern gasoline engine having end-pivoted roller finger follower valve train configuration has been instrumented to investigate the effects of Wonder Process Craft surface treatment on roller slip. Comprehensive test programme has been undertaken at transient camshaft speeds by employing the New European Drive Cycle under different oil temperatures and pressures. Remarkable reduction in roller slip was recorded for Wonder Process Craft surface treated roller as compared to the original unmodified roller indicating its strong potential of employment in engine valve train. The test rig, surface treatment of roller, instrumentation, experimentation, results and discussion have been presented in detail in this paper.

AB - The performance and durability of tribological components in roller follower valve train is governed mainly by the roller rotational behaviour. Pure rolling of roller on the camshaft surface is essential to achieve the optimum valve train efficiency. The increase in roller slip can lead to high valve train power loss due to increase in sliding friction and can increase the wear rate of mating surfaces of camshaft and roller. In this research work, a modern gasoline engine having end-pivoted roller finger follower valve train configuration has been instrumented to investigate the effects of Wonder Process Craft surface treatment on roller slip. Comprehensive test programme has been undertaken at transient camshaft speeds by employing the New European Drive Cycle under different oil temperatures and pressures. Remarkable reduction in roller slip was recorded for Wonder Process Craft surface treated roller as compared to the original unmodified roller indicating its strong potential of employment in engine valve train. The test rig, surface treatment of roller, instrumentation, experimentation, results and discussion have been presented in detail in this paper.

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KW - roller sliding

KW - surface treatment

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JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

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ER -

Benefits of wonder process craft on engine valve train performance

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Keywords

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