Skip to main content
Industrial Research And Consultancy Centre
Patent
Lightweight Connecting rod manufactured from Metallic Tube
Abstract

The invention presents a novel process for manufacturing a lightweight connecting rod using hydroforming techniques applied to metallic tubes. This approach significantly reduces the weight of internal combustion engine components, leading to improved fuel efficiency and lower emissions. The process is efficient, scalable, and environmentally friendly, making it an attractive alternative to traditional casting and forging methods.

Societal Impact

The technology can significantly improve vehicle fuel efficiency, leading to reduced fuel consumption and lower greenhouse gas emissions. It supports global efforts to combat climate change by promoting the development of more sustainable transportation solutions.

Salient technical features and Advantages of the Technology
  • Hydroforming Process: Uses high-pressure working mediums to expand steel tubes within a die to form lightweight, robust connecting rods 
  • Modular Design: Allows the creation of the connecting rod's body and cap separately, which can then be assembled to form the complete rod. 
  • Significant Weight Reduction: The hydroformed connecting rod is lighter than traditionally manufactured rods, enhancing vehicle fuel efficiency 
  • Cost-Efficiency: Utilizing steel tubes and hydroforming is more economical than additive manufacturing or forging, especially on a large scale 
  • Eco-Friendly Manufacturing: Compared to traditional methods, the hydroforming process uses less energy and generates fewer emissions 
  • High Performance: The resulting connecting rod maintains the necessary strength and durability for high-performance applications despite its reduced weight


Technology readiness level

3

Current Status of Technology

The process has been thoroughly tested and validated, demonstrating its feasibility and effectiveness.

Relevant Industries

Automotive Manufacturing, Industrial Machinery, Metal Forming and Fabrication

Applications or Domain
  • Automotive Industry: Ideal for internal combustion engines to lower vehicle weight and improve fuel efficiency 
  • Manufacturing and Production: Can be applied to any sector requiring lightweight, strong connecting rods or similar components