Fuel Efficient Injection and Ignition


Executive Summary


Improving fuel efficiency is currently perhaps the most heavily researched area of development for the automotive industry. MSU researchers have developed a fuel injection system improving efficiency when compared to current production vehicles.  This innovation improves dispersion and ignition of fuel in combustion engines.


Description of Technology


Turbulent Jet Ignition (TJI) is a method of igniting fuel in a combustion engine in a manner that allows lean mixtures to ignite while maintaining the work provided by typical ignition methods. TJI technologies have been researched for decades, but have yet to be implemented into production vehicles due to issues such as idle stability and low load stability. With these issued recognized, the research team at MSU has developed a robust and consistent TJI system with an auxiliary air supply in order to provide a more reliable and repeatable ignition method while reaping fuel efficiency benefits of a typical TJI system.


Key Benefits

  • Enhanced Efficiencies
  • Fresh air supplied to prechamber via auxiliary air systems
  • Uses conventional fuel injectors, spark plugs
  • A potential savings of 2.4 million barrels of oil per day
  • More robust than HCCI engines
  • More robust than traditional TJI systems



  • Engine fuel injectors/ignitors
  • Fuel efficient engines
  • Auto and boat engines


Patent Status:


PCT Patent filed

Licensing Rights Available

Patent Rights available


Inventors: Dr. Harold Schock, Dr. Guoming Zhu, Dr. Thomas Stuecken, Dr. Elisa Toulson


Tech ID: TEC2016-0119, TEC2018-0010


Patent Information:

For Information, Contact:

Bradley Shaw
Technology Manager
Michigan State University