Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Technology Category/ Market
Technology: Variable Valve Timing (VVT) System;
Industry/Applications: Automotive, Engine, Fuel, Transport Industry;
Market: The global VVT system market is projected to grow at a CAGR of 5.5% during 2024-2029.
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Problem Statement
- In conventional combustion systems, major limitations are higher oxides of nitrogen (NOx) and particulate matter emissions.
- Further, various low temperature combustion (LTC) strategies face several challenges including lack of combustion timing control, narrow engine operating load range and higher unburned emissions.
- Hence, there is a need to address the above issues in efficient manner.
Technology
- The present invention describes a variable valve timing (VVT) system (Refer Fig.1)
- Said system comprising a cam block mounted in a splined camshaft with a cam moving mechanism.
- The cam moving mechanism linearly moves the cam block in an axial direction of the splined camshaft for varying contact of a cam follower with one or more cam profiles in the cam block.
- The variation in the contact of the one or more cam profiles with the cam follower varies at least one valve actuation timing for improving ignition timing control.
Key Features/ Value Proposition
Technical Perspective:
- Provides variation of one or more cam profiles in a cam block in contact with a cam follower of the VVT system.
- Provides a movement of cam block in an axial direction on a splined camshaft.
- Achieving linear sliding motion apart from the rotary motion.
- Variable cam profiles on the cam block helps in generating a required valve actuation timing through a follower and rocker mechanism.
Industrial Perspective:
- Provides flexible and cost-effective VVT system for improved combustion.
- Applicable in industrial combustion system which includes a lube oil pump for lubricating one or more components in the VVT system.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Anand K
Department of Mechanical Engineering
Intellectual Property
IITM IDF Ref. 1769
IN Patent No:387807
Technology Readiness Level
TRL-2/3
Proof of Concept ready