Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
An Internal Combustion Engine for a Vehicle with Minimal Rotational and Reciprocating Unbalanced Forces.
Categories for this Invention
Category- Advanced Engine Management Systems, Automobile & Transportation
Applications – Motorcycles and Scooters, Portable Generators
Industry- Automotive, Heavy Machinery
Market – The global internal combustion engine market size is expected to reach USD 228 Billion in 2032, growing at a CAGR of 5%.
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Problem Statement
- Small single cylinder internal combustion engines inherently produce high vibrations due to unbalanced forces from the rotating crankshaft and reciprocating piston.
- These vibrations are transferred to the machine or vehicle, causing user discomfort.
- Conventional balancing methods are ineffective for transparent or modified single cylinder engines with additional reciprocating masses, leading to inefficient operation.
Technology
Balanced Crankshaft and Auxiliary Shaft:
- The engine design incorporates a crankshaft with a first counterweight and an auxiliary shaft with a second counterweight, both positioned near the bottom end of the block to balance the forces and reduce vibrations.
Opposite Rotation Mechanism:
- The crankshaft and auxiliary shaft are coupled to a driving mechanism with gears that rotate in opposite directions, further aiding in balancing the engine and minimizing vibrations.
Integrated Design and Cavities:
- The engine block includes two cavities with C-shaped profiles to accommodate the crankshaft and auxiliary shaft, ensuring proper alignment and structural integrity.
Key Features / Value Proposition
1. Enhanced Vibration Reduction:
- Integrated counterweights on both the crankshaft and auxiliary shaft reduce engine vibrations significantly.
2. Optimized Engine Balance:
- Parallel auxiliary shaft with counterweights balances reciprocating forces, ensuring smoother operation.
3. Increased Engine Longevity:
- Reduced vibrations lead to less wear and tear, extending the engine’s operational life.
4. Improved Efficiency:
- Opposite rotating shafts, coupled with a gear mechanism, enhance mechanical efficiency and performance.
5. Space-Efficient Design:
- Engine block designed with C-shaped cavities for compact and efficient component placement.
6. Versatile Application:
- Suitable for various vehicles, providing stable and reliable performance across different platforms.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Mayank Mittal,
Prof. Ramesh A
Department of Mechanical Engineering
Intellectual Property
- IITM IDF Ref. 2775
- IN 202441022308 – Patent Published
Technology Readiness Level
TRL – 4
Technology validated in lab scale.