The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine
A unique stepped-piston engine was developed by a group of research engineers at Universiti Teknologi Malaysia (UTM), from 2003 to 2005. The development work undertaken by them engulfs design, prototyping and evaluation over a predetermined period of time which was iterative and challenging in natur...
| Main Authors: | , , , , , |
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| Format: | Monograph |
| Language: | English |
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Universiti Teknologi Malaysia
2005
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| Subjects: | |
| Online Access: | http://eprints.utm.my/2644/ http://eprints.utm.my/2644/1/74515.pdf |
| _version_ | 1848890398168055808 |
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| author | Abdul Aziz, Azhar Suhadi, Mohd. Sairaji Mohd. Noor, Alias Abdullah, Abu Hassan Tawi, Kamarul Baharin Abu Bakar, Rosli |
| author_facet | Abdul Aziz, Azhar Suhadi, Mohd. Sairaji Mohd. Noor, Alias Abdullah, Abu Hassan Tawi, Kamarul Baharin Abu Bakar, Rosli |
| author_sort | Abdul Aziz, Azhar |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | A unique stepped-piston engine was developed by a group of research engineers at Universiti Teknologi Malaysia (UTM), from 2003 to 2005. The development work undertaken by them engulfs design, prototyping and evaluation over a predetermined period of time which was iterative and challenging in nature. The main objective of the program is to demonstrate local R&D capabilities on small
engine work that is able to produce mobile powerhouse of comparable output, having low-fuel consumption and acceptable emission than its crankcase counterpart of similar displacement. A two-stroke engine work was selected as it posses a number of technological challenges, e.g. increase in its thermal efficiency and emission, which upon successful undertakings will be useful in assisting the group in future powertrain undertakings in UTM. In its carbureted version, the single-cylinder air-cooled engine incorporates a three-port transfer system and a dedicated crankcase breather. These features will enable the prototype to have high induction efficiency and to behave very much a two-stroke engine but equipped with a four-stroke crankcase lubrication system. After a series of analytical work the engine was subjected to a series of laboratory trials. It was also tested on a small watercraft platform with promising indication of its
flexibility of use as a prime mover in mobile platform. In an effort to further enhance its technology features, the researchers have also embarked on the development of an add-on auxiliary system. The system comprises of an engine control unit (ECU), a direct-injector unit, a dedicated lubricant dispenser unit and an embedded common rail fuel unit. This support system was incorporated onto the engine to demonstrate the finer points of environmental-friendly and fuel economy features. The outcome of this complete package is described in the report, covering the methodology and the final characteristics of the mobile
power plant. |
| first_indexed | 2025-11-15T20:41:26Z |
| format | Monograph |
| id | utm-2644 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:41:26Z |
| publishDate | 2005 |
| publisher | Universiti Teknologi Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-26442012-06-05T08:43:48Z http://eprints.utm.my/2644/ The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine Abdul Aziz, Azhar Suhadi, Mohd. Sairaji Mohd. Noor, Alias Abdullah, Abu Hassan Tawi, Kamarul Baharin Abu Bakar, Rosli TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics A unique stepped-piston engine was developed by a group of research engineers at Universiti Teknologi Malaysia (UTM), from 2003 to 2005. The development work undertaken by them engulfs design, prototyping and evaluation over a predetermined period of time which was iterative and challenging in nature. The main objective of the program is to demonstrate local R&D capabilities on small engine work that is able to produce mobile powerhouse of comparable output, having low-fuel consumption and acceptable emission than its crankcase counterpart of similar displacement. A two-stroke engine work was selected as it posses a number of technological challenges, e.g. increase in its thermal efficiency and emission, which upon successful undertakings will be useful in assisting the group in future powertrain undertakings in UTM. In its carbureted version, the single-cylinder air-cooled engine incorporates a three-port transfer system and a dedicated crankcase breather. These features will enable the prototype to have high induction efficiency and to behave very much a two-stroke engine but equipped with a four-stroke crankcase lubrication system. After a series of analytical work the engine was subjected to a series of laboratory trials. It was also tested on a small watercraft platform with promising indication of its flexibility of use as a prime mover in mobile platform. In an effort to further enhance its technology features, the researchers have also embarked on the development of an add-on auxiliary system. The system comprises of an engine control unit (ECU), a direct-injector unit, a dedicated lubricant dispenser unit and an embedded common rail fuel unit. This support system was incorporated onto the engine to demonstrate the finer points of environmental-friendly and fuel economy features. The outcome of this complete package is described in the report, covering the methodology and the final characteristics of the mobile power plant. Universiti Teknologi Malaysia 2005-07-31 Monograph NonPeerReviewed application/pdf en http://eprints.utm.my/2644/1/74515.pdf Abdul Aziz, Azhar and Suhadi, Mohd. Sairaji and Mohd. Noor, Alias and Abdullah, Abu Hassan and Tawi, Kamarul Baharin and Abu Bakar, Rosli (2005) The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine. Project Report. Universiti Teknologi Malaysia. (Unpublished) |
| spellingShingle | TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Abdul Aziz, Azhar Suhadi, Mohd. Sairaji Mohd. Noor, Alias Abdullah, Abu Hassan Tawi, Kamarul Baharin Abu Bakar, Rosli The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine |
| title | The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine |
| title_full | The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine |
| title_fullStr | The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine |
| title_full_unstemmed | The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine |
| title_short | The design and development of a new twostroke (125 Cc) stratified-charge, lean-burn air-cooled engine |
| title_sort | design and development of a new twostroke (125 cc) stratified-charge, lean-burn air-cooled engine |
| topic | TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics |
| url | http://eprints.utm.my/2644/ http://eprints.utm.my/2644/1/74515.pdf |