US 12,305,583 B2
Method and apparatus for using biofuels in engines having emission control systems
Colin N. Huwyler, Pittsburgh, PA (US); Jonathan Ewing, Pittsburgh, PA (US); and Kevin Smyth, Pittsburgh, PA (US)
Assigned to Optimus Technologies, Inc., Pittsburgh, PA (US)
Appl. No. 18/272,197
Filed by Optimus Technologies, Inc., Pittsburgh, PA (US)
PCT Filed Jan. 14, 2022, PCT No. PCT/US2022/012586
§ 371(c)(1), (2) Date Jul. 13, 2023,
PCT Pub. No. WO2022/155510, PCT Pub. Date Jul. 21, 2022.
Claims priority of provisional application 63/137,433, filed on Jan. 14, 2021.
Prior Publication US 2024/0068419 A1, Feb. 29, 2024
Int. Cl. F02D 19/08 (2006.01); F02D 19/06 (2006.01); F02D 41/02 (2006.01); F02D 41/38 (2006.01)
CPC F02D 19/081 (2013.01) [F02D 19/0652 (2013.01); F02D 41/029 (2013.01); F02D 2041/389 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of modifying the operation of an engine, having at least a fuel delivery system associated with a first fuel and an emissions control system, to enable operation with the first fuel and a second fuel, the method comprising the steps of:
providing the engine with a fuel supply system associated with the second fuel and an electronic control unit, the electronic control unit configured to communicate with at least the emissions control system, the fuel delivery system, and the fuel supply system;
operating the engine using the second fuel;
receiving, with the electronic control unit, notification from the emissions control system that a regeneration event is needed; and
supplying, with the fuel delivery system, the first fuel to the emissions control system for the regeneration event,
wherein the first fuel is different from the second fuel.