Effects of intake valves phase shift on engine air charge

Leonardo Vinícius Mendes Pereira; Luciana Bassi Marinho Pires; Alahdjin Atan Pinto; Sargio De Morais Hanriot; José Ricardo Sodré

doi:10.4271/2004-01-2929

Effects of intake valves phase shift on engine air charge

Leonardo Vinícius Mendes Pereira, Luciana Bassi Marinho Pires, Alahdjin Atan Pinto, Sargio De Morais Hanriot, José Ricardo Sodré^*

^*Corresponding author for this work

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

The piston and intake valves alternate movements produce pressure waves that propagate throughout the intake conduit. Such waves can adequately increase the intake air mass charge to the engine cylinders. In the present work an experimental study on the engine intake valves phase shift was carried out with the objective to analyze its influence on the intake air mass charge. A production 1.0-liter, 16-valve engine was used, with two intake valves per cylinder. Preliminary tests were conducted in a flow bench, simulating the engine intake air flow conditions, and, then, the engine was tested in a dynamometer bench. The results in the flow bench showed that the intake air mass charge is increased up to a phase shift angle of about 30 degrees. From the tests conducted in the dynamometer tests, results are shown for a phase shift angle of 7.5 degrees, with one of the intake valves opening late with respect to the original opening angle.

Original language	English
Title of host publication	2004 Powertrain & Fluid Systems Conference & Exhibition
Publisher	SAE International
DOIs	https://doi.org/10.4271/2004-01-2929
Publication status	Published - 25 Oct 2004
Event	Powertrain and Fluid Systems Conference and Exhibition - Tampa, FL, United States Duration: 25 Oct 2004 → 28 Oct 2004

Publication series

Name	2004 Powertrain & Fluid Systems Conference & Exhibition
Publisher	SAE International
ISSN (Print)	0148-7191
ISSN (Electronic)	2688-3627

Conference

Conference	Powertrain and Fluid Systems Conference and Exhibition
Country/Territory	United States
City	Tampa, FL
Period	25/10/04 → 28/10/04

Access to Document

10.4271/2004-01-2929

Cite this

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title = "Effects of intake valves phase shift on engine air charge",

abstract = "The piston and intake valves alternate movements produce pressure waves that propagate throughout the intake conduit. Such waves can adequately increase the intake air mass charge to the engine cylinders. In the present work an experimental study on the engine intake valves phase shift was carried out with the objective to analyze its influence on the intake air mass charge. A production 1.0-liter, 16-valve engine was used, with two intake valves per cylinder. Preliminary tests were conducted in a flow bench, simulating the engine intake air flow conditions, and, then, the engine was tested in a dynamometer bench. The results in the flow bench showed that the intake air mass charge is increased up to a phase shift angle of about 30 degrees. From the tests conducted in the dynamometer tests, results are shown for a phase shift angle of 7.5 degrees, with one of the intake valves opening late with respect to the original opening angle.",

author = "Pereira, {Leonardo Vin{\'i}cius Mendes} and Pires, {Luciana Bassi Marinho} and Pinto, {Alahdjin Atan} and {De Morais Hanriot}, Sargio and Sodr{\'e}, {Jos{\'e} Ricardo}",

year = "2004",

month = oct,

day = "25",

doi = "10.4271/2004-01-2929",

language = "English",

series = "2004 Powertrain & Fluid Systems Conference & Exhibition",

publisher = "SAE International",

booktitle = "2004 Powertrain & Fluid Systems Conference & Exhibition",

address = "United States",

note = "Powertrain and Fluid Systems Conference and Exhibition ; Conference date: 25-10-2004 Through 28-10-2004",

}

Pereira, LVM, Pires, LBM, Pinto, AA, De Morais Hanriot, S & Sodré, JR 2004, Effects of intake valves phase shift on engine air charge. in 2004 Powertrain & Fluid Systems Conference & Exhibition., 2004-01-2929, 2004 Powertrain & Fluid Systems Conference & Exhibition, SAE International, Powertrain and Fluid Systems Conference and Exhibition, Tampa, FL, United States, 25/10/04. https://doi.org/10.4271/2004-01-2929

Effects of intake valves phase shift on engine air charge. / Pereira, Leonardo Vinícius Mendes; Pires, Luciana Bassi Marinho; Pinto, Alahdjin Atan et al.
2004 Powertrain & Fluid Systems Conference & Exhibition. SAE International, 2004. 2004-01-2929 (2004 Powertrain & Fluid Systems Conference & Exhibition).

Research output: Chapter in Book/Published conference output › Conference publication

TY - GEN

T1 - Effects of intake valves phase shift on engine air charge

AU - Pereira, Leonardo Vinícius Mendes

AU - Pires, Luciana Bassi Marinho

AU - Pinto, Alahdjin Atan

AU - De Morais Hanriot, Sargio

AU - Sodré, José Ricardo

PY - 2004/10/25

Y1 - 2004/10/25

N2 - The piston and intake valves alternate movements produce pressure waves that propagate throughout the intake conduit. Such waves can adequately increase the intake air mass charge to the engine cylinders. In the present work an experimental study on the engine intake valves phase shift was carried out with the objective to analyze its influence on the intake air mass charge. A production 1.0-liter, 16-valve engine was used, with two intake valves per cylinder. Preliminary tests were conducted in a flow bench, simulating the engine intake air flow conditions, and, then, the engine was tested in a dynamometer bench. The results in the flow bench showed that the intake air mass charge is increased up to a phase shift angle of about 30 degrees. From the tests conducted in the dynamometer tests, results are shown for a phase shift angle of 7.5 degrees, with one of the intake valves opening late with respect to the original opening angle.

AB - The piston and intake valves alternate movements produce pressure waves that propagate throughout the intake conduit. Such waves can adequately increase the intake air mass charge to the engine cylinders. In the present work an experimental study on the engine intake valves phase shift was carried out with the objective to analyze its influence on the intake air mass charge. A production 1.0-liter, 16-valve engine was used, with two intake valves per cylinder. Preliminary tests were conducted in a flow bench, simulating the engine intake air flow conditions, and, then, the engine was tested in a dynamometer bench. The results in the flow bench showed that the intake air mass charge is increased up to a phase shift angle of about 30 degrees. From the tests conducted in the dynamometer tests, results are shown for a phase shift angle of 7.5 degrees, with one of the intake valves opening late with respect to the original opening angle.

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DO - 10.4271/2004-01-2929

M3 - Conference publication

T3 - 2004 Powertrain & Fluid Systems Conference & Exhibition

BT - 2004 Powertrain & Fluid Systems Conference & Exhibition

PB - SAE International

T2 - Powertrain and Fluid Systems Conference and Exhibition

Y2 - 25 October 2004 through 28 October 2004

ER -

Effects of intake valves phase shift on engine air charge

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