Diesel Engine Efficiency and Emissions Improvement via Piston Temperature Control

EPA Contract Number: EPD13029
Title: Diesel Engine Efficiency and Emissions Improvement via Piston Temperature Control
Investigators: Schwartz, George
Small Business: Electro Mechanical Associates, Inc.
EPA Contact: Richards, April
Phase: I
Project Period: May 15, 2013 through November 14, 2013
Project Amount: $79,996
RFA: Small Business Innovation Research (SBIR) - Phase I (2013) RFA Text |  Recipients Lists
Research Category: Small Business Innovation Research (SBIR) , SBIR - Air , SBIR - Air Pollution


Diesel engine manufacturers need a way to improve fuel economy as well as limit NOx and particulate emissions to meet upcoming federal, state and global regulations. A large percentage of emissions and fuel consumption occurs during cold start and light to medium load operation. EMA proposes to develop a method to increase combustion chamber temperature during warm-up, light and medium loads that will reduce emissions and improve fuel efficiency. EMA estimates a 2 to 5 percent improvement in engine efficiency with a corresponding reduction in CO2 emissions when this innovation is used on turbo-compound Diesel engines and half this when used on turbocharged Diesel engines with an estimated payback period of less than 3 months for a typical class 8 (on highway) truck. Up to 27 percent reduction of exhaust particulates is estimated. A doubling of engine oil life has been seen in early stage observations. A reduction in tail pipe NOx of 10 to 25 percent also is estimated. Global Diesel engine sales exceed 12,000,000 units per year.   
EMA plans to perform experimentation and analysis that will show the emissions and efficiency improvement of this innovation. This research will further the knowledge of combustion at elevated temperatures.

Supplemental Keywords:

diesel, fuel efficiency, emissions, combustion

Progress and Final Reports:

  • Final Report