Technologies
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WARF: P06286US

Internal Combustion Engine Testing with Thermal Simulation of Additional Cylinders


INVENTORS -

John Moskwa, Stephen Klick, Brian Krosschell, Marcus Marty

The Wisconsin Alumni Research Foundation (WARF) is seeking commercial partners interested in developing a device that simulates heat transfer of a multiple-cylinder engine on a single-cylinder test engine.
OVERVIEWSingle-cylinder test engines are used in the automotive industry to simulate the performance of a multiple-cylinder engine in research and development. However, multiple-cylinder engines perform differently than their single-cylinder counterparts, and these differences cause considerable difficulty in engine development. For this reason, single-cylinder engines are rarely used today in engine development, in spite of their many attributes. Accurately simulating the multi-cylinder transients on the single-cylinder engine would represent a major advance, and could shorten engine development time considerably.
THE INVENTIONUW-Madison researchers have developed an apparatus to simulate heat transfer of a multiple-cylinder engine on a single-cylinder test engine. Virtual cylinders are simulated by a processor, and “loads,” or energy inputs are applied to the single-cylinder test engine to more accurately reflect its performance in a multiple-cylinder engine. Flow passages allow fluid to flow in and around the single cylinder. The temperature of the fluid is controlled by a processor to replicate the presence of heat from virtual cylinders around the single-cylinder test engine.
APPLICATIONS
  • Engine development in the automotive industry
KEY BENEFITS
  • Important engine tests, such as the cold-start test, can be moved forward in the design process
  • Effects of heat transfer within the engine can be studied and optimized for very low cost on the single-cylinder engine
  • Discoveries using the single-cylinder engine can be more directly applied to the multi-cylinder engine with minimal modification, representing a significant cost saving
  • Flow passages may be controlled independently, providing heat on some sides and coolant on others to study heat transfer effects on engine emissions
  • Rapidly varies heat transfer for various studies, such as port fuel preparation
  • Accurately replicates heat transfer effects
ADDITIONAL INFORMATION
For More Information About the Inventors
Contact Information
For current licensing status, please contact Emily Bauer at emily@warf.org or 608-960-9842.
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