The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine

1218 Ogledov
1294 Prenosov
Izvoz citacije: ABNT
UYSAL, Fatih ;SAGIROGLU, Selami .
The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 61, n.11, p. 632-640, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/the-effects-of-a-pneumatic-driven-variable-valve-timing-mechanism-on-the-performance-of-an-otto-engine/>. Date accessed: 17 sep. 2021. 
doi:http://dx.doi.org/10.5545/sv-jme.2015.2778.
Uysal, F., & Sagiroglu, S.
(2015).
The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine.
Strojniški vestnik - Journal of Mechanical Engineering, 61(11), 632-640.
doi:http://dx.doi.org/10.5545/sv-jme.2015.2778
@article{sv-jmesv-jme.2015.2778,
	author = {Fatih  Uysal and Selami  Sagiroglu},
	title = {The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {61},
	number = {11},
	year = {2015},
	keywords = {variable valve timing (VVT); valve timing and lift electronic control system (VTEC); Otto engine; engine performance; spark ignition; electro-pneumatic rocker mechanism},
	abstract = {In this study, the classic cam mechanism of a single cylinder, four-stroke, 6 hp spark-ignited engine was replaced by an electro-pneumatic rocker mechanism, which is designed and manufactured to open the intake valve at low (3.7 mm), normal (5.7 mm) and high (7.7 mm) lifts between engine speeds of 1600 to 2200 rpm. An air compressor was used to feed 6 bar air pressure in order to have the plungers drive the cams in an orderly manner. A control panel was used to control plungers in order to modulate the valve lifts gradually. The volumetric efficiency, torque, power and specific fuel consumption with this operation were measured at full load and compared to the values with a classic cam mechanism. The results of the study showed that decreasing the valve lift at low engine speeds and increasing the lift at high speeds improve the engine performance. Moreover, it was concluded that the idle speed can be lowered by decreasing the valve lift at low engine speeds.},
	issn = {0039-2480},	pages = {632-640},	doi = {10.5545/sv-jme.2015.2778},
	url = {https://www.sv-jme.eu/sl/article/the-effects-of-a-pneumatic-driven-variable-valve-timing-mechanism-on-the-performance-of-an-otto-engine/}
}
Uysal, F.,Sagiroglu, S.
2015 June 61. The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 61:11
%A Uysal, Fatih 
%A Sagiroglu, Selami 
%D 2015
%T The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine
%B 2015
%9 variable valve timing (VVT); valve timing and lift electronic control system (VTEC); Otto engine; engine performance; spark ignition; electro-pneumatic rocker mechanism
%! The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine
%K variable valve timing (VVT); valve timing and lift electronic control system (VTEC); Otto engine; engine performance; spark ignition; electro-pneumatic rocker mechanism
%X In this study, the classic cam mechanism of a single cylinder, four-stroke, 6 hp spark-ignited engine was replaced by an electro-pneumatic rocker mechanism, which is designed and manufactured to open the intake valve at low (3.7 mm), normal (5.7 mm) and high (7.7 mm) lifts between engine speeds of 1600 to 2200 rpm. An air compressor was used to feed 6 bar air pressure in order to have the plungers drive the cams in an orderly manner. A control panel was used to control plungers in order to modulate the valve lifts gradually. The volumetric efficiency, torque, power and specific fuel consumption with this operation were measured at full load and compared to the values with a classic cam mechanism. The results of the study showed that decreasing the valve lift at low engine speeds and increasing the lift at high speeds improve the engine performance. Moreover, it was concluded that the idle speed can be lowered by decreasing the valve lift at low engine speeds.
%U https://www.sv-jme.eu/sl/article/the-effects-of-a-pneumatic-driven-variable-valve-timing-mechanism-on-the-performance-of-an-otto-engine/
%0 Journal Article
%R 10.5545/sv-jme.2015.2778
%& 632
%P 9
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 61
%N 11
%@ 0039-2480
%8 2018-06-27
%7 2018-06-27
Uysal, Fatih, & Selami  Sagiroglu.
"The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine." Strojniški vestnik - Journal of Mechanical Engineering [Online], 61.11 (2015): 632-640. Web.  17 Sep. 2021
TY  - JOUR
AU  - Uysal, Fatih 
AU  - Sagiroglu, Selami 
PY  - 2015
TI  - The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2778
KW  - variable valve timing (VVT); valve timing and lift electronic control system (VTEC); Otto engine; engine performance; spark ignition; electro-pneumatic rocker mechanism
N2  - In this study, the classic cam mechanism of a single cylinder, four-stroke, 6 hp spark-ignited engine was replaced by an electro-pneumatic rocker mechanism, which is designed and manufactured to open the intake valve at low (3.7 mm), normal (5.7 mm) and high (7.7 mm) lifts between engine speeds of 1600 to 2200 rpm. An air compressor was used to feed 6 bar air pressure in order to have the plungers drive the cams in an orderly manner. A control panel was used to control plungers in order to modulate the valve lifts gradually. The volumetric efficiency, torque, power and specific fuel consumption with this operation were measured at full load and compared to the values with a classic cam mechanism. The results of the study showed that decreasing the valve lift at low engine speeds and increasing the lift at high speeds improve the engine performance. Moreover, it was concluded that the idle speed can be lowered by decreasing the valve lift at low engine speeds.
UR  - https://www.sv-jme.eu/sl/article/the-effects-of-a-pneumatic-driven-variable-valve-timing-mechanism-on-the-performance-of-an-otto-engine/
@article{{sv-jme}{sv-jme.2015.2778},
	author = {Uysal, F., Sagiroglu, S.},
	title = {The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {61},
	number = {11},
	year = {2015},
	doi = {10.5545/sv-jme.2015.2778},
	url = {https://www.sv-jme.eu/sl/article/the-effects-of-a-pneumatic-driven-variable-valve-timing-mechanism-on-the-performance-of-an-otto-engine/}
}
TY  - JOUR
AU  - Uysal, Fatih 
AU  - Sagiroglu, Selami 
PY  - 2018/06/27
TI  - The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 61, No 11 (2015): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2778
KW  - variable valve timing (VVT), valve timing and lift electronic control system (VTEC), Otto engine, engine performance, spark ignition, electro-pneumatic rocker mechanism
N2  - In this study, the classic cam mechanism of a single cylinder, four-stroke, 6 hp spark-ignited engine was replaced by an electro-pneumatic rocker mechanism, which is designed and manufactured to open the intake valve at low (3.7 mm), normal (5.7 mm) and high (7.7 mm) lifts between engine speeds of 1600 to 2200 rpm. An air compressor was used to feed 6 bar air pressure in order to have the plungers drive the cams in an orderly manner. A control panel was used to control plungers in order to modulate the valve lifts gradually. The volumetric efficiency, torque, power and specific fuel consumption with this operation were measured at full load and compared to the values with a classic cam mechanism. The results of the study showed that decreasing the valve lift at low engine speeds and increasing the lift at high speeds improve the engine performance. Moreover, it was concluded that the idle speed can be lowered by decreasing the valve lift at low engine speeds.
UR  - https://www.sv-jme.eu/sl/article/the-effects-of-a-pneumatic-driven-variable-valve-timing-mechanism-on-the-performance-of-an-otto-engine/
Uysal, Fatih, AND Sagiroglu, Selami.
"The Effects of a Pneumatic-Driven Variable Valve Timing Mechanism on the Performance of an Otto Engine" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 61 Number 11 (27 June 2018)

Avtorji

Inštitucije

  • Karabuk University, Faculty of Engineering, Turkey 1

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 61(2015)11, 632-640

https://doi.org/10.5545/sv-jme.2015.2778

In this study, the classic cam mechanism of a single cylinder, four-stroke, 6 hp spark-ignited engine was replaced by an electro-pneumatic rocker mechanism, which is designed and manufactured to open the intake valve at low (3.7 mm), normal (5.7 mm) and high (7.7 mm) lifts between engine speeds of 1600 to 2200 rpm. An air compressor was used to feed 6 bar air pressure in order to have the plungers drive the cams in an orderly manner. A control panel was used to control plungers in order to modulate the valve lifts gradually. The volumetric efficiency, torque, power and specific fuel consumption with this operation were measured at full load and compared to the values with a classic cam mechanism. The results of the study showed that decreasing the valve lift at low engine speeds and increasing the lift at high speeds improve the engine performance. Moreover, it was concluded that the idle speed can be lowered by decreasing the valve lift at low engine speeds.

variable valve timing (VVT); valve timing and lift electronic control system (VTEC); Otto engine; engine performance; spark ignition; electro-pneumatic rocker mechanism