Evaluation of noise and air flow on a motorized adaptive valve lift and timing engine

Ahmad Fuad Abdul Rasid, Mariyam Jameelah Ghazali, Wan Mohd Faizal Wan Mahmood, Taib Iskandar Mohamad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper explains about the evaluation of intake air flow, volumetric efficiency and noise of a motor-driven engine that used an adaptive valve lift and timing mechanism (AVLT) on one intake valve. This system is developed with an aim to produce a more powerful engine through variable valve timing and lift technique. The system made the valve lifts higher without increasing the valve lift duration. Therefore, a dynamic valve lift profile with respect to the engine speed can be achieved thus varies the input and output of an engine. As a result of applying the AVLT on a motor-driven engine, the engine noise, emission noise and the mass air flow entering the engine cylinder was increased. When AVLT is employed to a maximum lift, the mass air flow of default intake valve lift was improved within a range from 8% to 46.64% in 500 rpm to 2000 rpm speed range. Maximum lift produced engine noise within a range of 2.57% to 18.13% higher than the default lift throughout all speed. Also, maximum lift produced emission noise within a range of 2.47% to 19.19% higher than the default lift throughout all speed. The product of this research will be useful to optimise the height and timing of the valve lift and the AVLT mountings on the engine head during operation thus improves the engine performance, fuel economy, emission levels and reduced noise of a modified engine.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
Pages482-487
Number of pages6
Volume315
DOIs
Publication statusPublished - 2013
Event3rd International Conference on Mechanical and Manufacturing Engineering, ICME 2012 -
Duration: 20 Nov 201221 Nov 2012

Publication series

NameApplied Mechanics and Materials
Volume315
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other3rd International Conference on Mechanical and Manufacturing Engineering, ICME 2012
Period20/11/1221/11/12

Fingerprint

Engines
Air
Intake valves
Air intakes
Fuel economy
Engine cylinders
Mountings

Keywords

  • High valve lift
  • Intake air flow
  • Motorized engine
  • Noise analysis
  • Variable valve lift

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Rasid, A. F. A., Ghazali, M. J., Wan Mahmood, W. M. F., & Mohamad, T. I. (2013). Evaluation of noise and air flow on a motorized adaptive valve lift and timing engine. In Applied Mechanics and Materials (Vol. 315, pp. 482-487). (Applied Mechanics and Materials; Vol. 315). https://doi.org/10.4028/www.scientific.net/AMM.315.482

Evaluation of noise and air flow on a motorized adaptive valve lift and timing engine. / Rasid, Ahmad Fuad Abdul; Ghazali, Mariyam Jameelah; Wan Mahmood, Wan Mohd Faizal; Mohamad, Taib Iskandar.

Applied Mechanics and Materials. Vol. 315 2013. p. 482-487 (Applied Mechanics and Materials; Vol. 315).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rasid, AFA, Ghazali, MJ, Wan Mahmood, WMF & Mohamad, TI 2013, Evaluation of noise and air flow on a motorized adaptive valve lift and timing engine. in Applied Mechanics and Materials. vol. 315, Applied Mechanics and Materials, vol. 315, pp. 482-487, 3rd International Conference on Mechanical and Manufacturing Engineering, ICME 2012, 20/11/12. https://doi.org/10.4028/www.scientific.net/AMM.315.482
Rasid AFA, Ghazali MJ, Wan Mahmood WMF, Mohamad TI. Evaluation of noise and air flow on a motorized adaptive valve lift and timing engine. In Applied Mechanics and Materials. Vol. 315. 2013. p. 482-487. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.315.482
Rasid, Ahmad Fuad Abdul ; Ghazali, Mariyam Jameelah ; Wan Mahmood, Wan Mohd Faizal ; Mohamad, Taib Iskandar. / Evaluation of noise and air flow on a motorized adaptive valve lift and timing engine. Applied Mechanics and Materials. Vol. 315 2013. pp. 482-487 (Applied Mechanics and Materials).
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