Menon, S., Ganti, H., and Hagen, C., "NOTICE OF WITHDRAWAL," SAE Technical Paper 2016-01-1014.01, 2016, doi:10.4271/2016-01-1014.01.
RETRACTED: Natural gas is an attractive option for transportation applications in the United States due to its abundant availability and potential for reduced emissions. The scarcity of refueling resources imposes a barrier to widespread use of natural gas in internal combustion engines. A novel bi-modal engine under development is capable of operating in a compressor mode and provide refueling capabilities without any supplemental devices thus overcoming the infrastructure based limitations. As part of this development, a multi-cylinder production engine was acquired and the intake modified on one of the cylinders to perform air compression. This system was tested with accompanying plate heat exchangers that allow for cooling of the compressed air. To make the system self-contained, engine coolant and vehicle refrigerant are used as heat sinks in the heat exchangers. The results of these development and testing efforts are summarized in this work along with performance assessments of the compressor system, comparison to predicted values, and future research directions.