Skip to Content
Find More Like This
Return to Search

Parasitic load control system for exhaust temperature control

United States Patent

April 28, 2009
View the Complete Patent at the US Patent & Trademark Office
A parasitic load control system is provided. The system may include an exhaust producing engine and a fuel pumping mechanism configured to pressurize fuel in a pressure chamber. The system may also include an injection valve configured to cause fuel pressure to build within the pressure chamber when in a first position and allow injection of fuel from the pressure chamber into one or more combustion chambers of the engine when in a second position. The system may further include a controller configured to independently regulate the pressure in the pressure chamber and the injection of fuel into the one or more combustion chambers, to increase a load on the fuel pumping mechanism, increasing parasitic load on the engine, thereby increasing a temperature of the exhaust produced by the engine.
Strauser; Aaron D. (Washington, IL), Coleman; Gerald N. (Peterborough, GB), Coldren; Dana R. (Fairbury, IL)
Caterpillar Inc. (Peoria, IL)
11/ 214,955
August 31, 2005
U.S. GOVERNMENT RIGHTS The embodiments disclosed in this application were made with government support under the terms of DOE Award No. DE-FC05-97OR22605 awarded by the Department of Energy. The government may have certain rights in the embodiments disclosed in this application.