Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Starting A Four- Stroke Internal Combustion Engine
Categories for this Invention
Category- Advanced Engine Management Systems, Automobile & Transportation
Applications – Automotive, Agricultural Equipment: Tractors and Harvesters.
Industry- Automotive, Heavy Machinery
Market – The global internal combustion engine market size is expected to reach USD 228 Billion in 2032, and register a revenue CAGR of 5%.
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Problem Statement
- Efficient conversion of chemical energy to mechanical energy in four-stroke internal combustion engines.
- Optimization of air-fuel mixture intake, compression, and combustion processes.
- Further, improvement in fuel injection and ignition systems for better engine starting and performance.
Technology
- The present invention relates to a four-stroke internal combustion (IC) engine and, in particular, to starting of the four-stroke IC engine.
Engine Start in Cold Conditions:
- The method uses multiple compression strokes to incrementally increase the temperature of the air inside the cylinder, aiding engine start in cold conditions without external devices.
Collection Chamber Utilization:
- Compressed air is routed to a collection chamber after each compression stroke, and re-compressed in subsequent strokes until it reaches a threshold starting temperature for ignition.
Controller and Sensors:
- A controller, coupled with temperature sensors, monitors and manages the compression cycles and valve operations to ensure the air reaches the required temperature for starting the engine.
Key Features / Value Proposition
Enhanced Cold Start Performance:
- Utilizes multi-stage compression to ensure reliable engine starts in low temperatures without external aids.
Fuel Efficiency
- Optimizes initial combustion conditions, reducing the need for excess fuel during start-up.
Reduced Emissions:
- Improved combustion efficiency minimizes emissions during engine start, aligning with stringent environmental regulations.
Integrated Control System:
- Employs advanced sensors and a controller to precisely manage compression cycles and temperatures.
Durability and Longevity:
- Minimizes wear and tear associated with cold starts, enhancing engine longevity.
Scalability:
- Applicable to various engine types and sizes, making it versatile across different market segments.
Cost-Effectiveness:
- Eliminates the need for additional starting aids, reducing overall engine and maintenance costs.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Ramesh A
Department of Mechanical Engineering
Intellectual Property
- IITM IDF Ref. 1262
- IN 377679 – Patent Granted
Technology Readiness Level
TRL – 4
Technology validated in lab scale.