Improvement In The Operating Characteristics Of
Internal Combustion Engine Using Variation In
Compression Ratio

Yadav Milind S.1, Wankhade P.A.2
1Finolex Academy of Management & Technology, Ratnagiri - 415639, Maharashtra, India
Email: yadav_milind[at]yahoo.com
2Veermata Jijabai Technological Institute, Mumbai - 400019, Maharashtra, India

---

Abstract - Vast developments are taking place in the field of
internal combustion engine especially to improve the fuel
economy and to reduce the emission percentage in the
exhaust gases so that engine can compete with stringent
emission rules of present days. Two strokes engines became
outdated due to their inability to compete with these
standards. This work is an attempt to bring two strokes
engine back in the field of automobile by increasing the fuel
economy and reducing the emission levels. In this regard
Variation in compression ratio is the technology used to
improve the efficiency of the engines. Aim of this research
work is to design, fabricate and test a simple two stroke
variable compression ratio (VCR) engine with better power
delivery, fuel economy and less emissions. With split type
cylinder block and stud arrangement the clearance volume
of existing fixed compression ratio (FCR) engine is varied
thereby varying the compression ratio. Modified engine is
having very less knocking tendency, high power output, high
mechanical efficiency, higher values of IMEP and BMEP,
good cold starting property, low emissions.

http://academypublisherijrte/vol01/no05/ijrte0105035040.htm