US 11,680,545 B2
Propane fuel system temperature control systems and methods
Anthony Kyle Perfetto, Columbus, IN (US); and Samuel C. Geckler, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on May 13, 2021, as Appl. No. 17/319,436.
Application 17/319,436 is a continuation of application No. 15/842,004, filed on Dec. 14, 2017, granted, now 11,035,326.
Prior Publication US 2021/0262423 A1, Aug. 26, 2021
Int. Cl. F02M 31/20 (2006.01); F02M 37/20 (2006.01); F02M 37/00 (2006.01); F02D 19/02 (2006.01); F02M 21/02 (2006.01)
CPC F02M 31/205 (2013.01) [F02D 19/022 (2013.01); F02D 19/027 (2013.01); F02M 21/0212 (2013.01); F02M 21/0227 (2013.01); F02M 21/0287 (2013.01); F02M 37/0052 (2013.01); F02M 37/0064 (2013.01); F02M 37/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
operating an internal combustion engine system including an internal combustion engine with a plurality of cylinders that receive a charge flow and a fuel from a fuel tank of a fuel system; and
maintaining a temperature of the fuel tank below a temperature threshold associated with a pressure relief condition of the fuel tank, wherein maintaining the temperature includes evacuating a fuel vapor from the fuel tank for combustion by the internal combustion engine, wherein maintaining the temperature of the fuel tank includes opening a control valve to evacuate the fuel vapor to the internal combustion engine and evaporate fuel in the fuel tank to cool and reduce pressure in the fuel tank.