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39314

IMPACT OF VARIABLE INTAKE-VALVE-TIMING ON HOMOGENEOUS CHARGE COMPRESSION IGNITION (HCCI) ENGINE PARAMETERS

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Last updated: 24 Dec 2024

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Abstract

ABSTRACT
The effects of variable intake-valve-timing on the gas exchange process and
performance of a 4-valve direct injection HCCI engine were computationally
investigated using a 1D fluid-dynamic engine cycle simulation code. A non-typical
intake valve strategy was examined; whereby the intake valves were assumed to be
independently actuated with the same valve-lift profile but at different timings. Using
such an intake valves strategy, the obtained results showed a significant improvement
of the engine parameters such as load and volumetric efficiency when compared with
those of the typical intake-valve-timing case. Additionally, minimizing the pumping work
penalty, and consequently improving the fuel economy, was shown as an advantage of
using the non-typical intake-valve-timing with the timing of the early intake valve
coupled with a symmetric degree of exhaust-valve-closing timing.

DOI

10.21608/amme.2008.39314

Keywords

HCCI engine, Variable valve timing, gas exchange process

Authors

First Name

MAHROUS

Last Name

M.

MiddleName

A-F.

Affiliation

Ass. Lecturer, Mechanical Power Engineering Dept., Menoufiya University, Shebin El-Kom, Egypt (On leave), PhD student, Mechanical Engineering Dept, University of Birmingham, UK.

Email

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City

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Orcid

-

First Name

POTRZEBOWSKI

Last Name

A.

MiddleName

-

Affiliation

PhD student, Mechanical Engineering Dept, University of Birmingham, UK.

Email

-

City

-

Orcid

-

First Name

WYSZYNSKI

Last Name

L.

MiddleName

M.

Affiliation

Professor of Novel Vehicle Technology and Applied Thermodynamics, Mechanical Engineering Dept, University of Birmingham, UK.

Email

-

City

-

Orcid

-

First Name

XU

Last Name

M.

MiddleName

H.

Affiliation

Reader in Automotive Engineering, Mechanical Engineering Dept, University of Birmingham, UK.

Email

-

City

-

Orcid

-

First Name

TSOLAKIS

Last Name

A.

MiddleName

-

Affiliation

Lecturer in Automotive Engineering, Mechanical Engineering Dept, University of Birmingham, UK.

Email

-

City

-

Orcid

-

First Name

LUSZCZ

Last Name

P.

MiddleName

-

Affiliation

PhD student, Mechanical Engineering Dept, University of Birmingham, UK.

Email

-

City

-

Orcid

-

Volume

13

Article Issue

13th International Conference on Applied Mechanics and Mechanical Engineering.

Related Issue

6264

Issue Date

2008-05-01

Receive Date

2019-07-07

Publish Date

2008-05-01

Page Start

246

Page End

256

Print ISSN

2636-4352

Online ISSN

2636-4360

Link

https://amme.journals.ekb.eg/article_39314.html

Detail API

https://amme.journals.ekb.eg/service?article_code=39314

Order

61

Type

Original Article

Type Code

831

Publication Type

Journal

Publication Title

The International Conference on Applied Mechanics and Mechanical Engineering

Publication Link

https://amme.journals.ekb.eg/

MainTitle

IMPACT OF VARIABLE INTAKE-VALVE-TIMING ON HOMOGENEOUS CHARGE COMPRESSION IGNITION (HCCI) ENGINE PARAMETERS

Details

Type

Article

Created At

22 Jan 2023