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Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/22186
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| Title: | Design and manufacturing process of rotary valve for internal combustion engine |
| Authors: | Meera, Vajaindran |
| Advisors: | Prof. Dr. Ryspek Usubamatov |
| Keywords: | Rotary-valve
Internal combustion engine
Automotive industry |
| Issue Date: | May-2009 |
| Publisher: | Universiti Malaysia Perlis |
| Department: | School of Manufacturing Engineering |
| Abstract: | A rotary valve system is capable of controlling intake and exhaust gases, which
will eliminate the need of well known complex mechanism with camshafts, poppet
valves, etc, and reduces the number of moving intricate parts in a cylinder head. The cost
of material and production, component wear rate, and noise level of the system can be
further reduced. The new mechanism enables the elimination of the overlapping of valves
work like earlier opening of valves and late closing that reduces gas leakage. This project
examines theoretically the gas flow through the holes of a rotary valve design in an
internal combustion engine. Initial findings from fluid dynamics calculations indicate that
the new system leads to increasing the efficiency and reliability of the gas intake and
exhaust mechanism performance. Results from the gas flow calculations show that the
speed of gas flow in the new system has many differences than conventional camshaftpoppet-
valve system. Calculations indicate that the change of the volumetric efficiency of
an engine, discharge flow coefficient, and dependence on the gas speed enable the
finding of better solutions for the geometry of a rotary valve. These positive attributes of
the new rotary valve system will result in a higher efficiency of an internal combustion
engine and the mechanism will find wide application in the automotive industry. |
| Description: | Access is limited to UniMAP community. |
| URI: | http://hdl.handle.net/123456789/22186 |
| Appears in Collections: | School of Manufacturing Engineering (FYP)
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