US 11,840,970 B2
Dual fuel generator with remote regulator
Mark J. Sarder, Waukesha, WI (US); Aleko D. Sotiriades, Cedarburg, WI (US); James J. Dehn, Brookfield, WI (US); and Leigh Jenison, Hartland, WI (US)
Assigned to Champion Power Equipment, Inc., Santa Fe Springs, CA (US)
Filed by Champion Power Equipment, Inc., Santa Fe Springs, CA (US)
Filed on Sep. 30, 2022, as Appl. No. 17/937,046.
Application 17/937,046 is a continuation of application No. 16/783,455, filed on Feb. 6, 2020, granted, now 11,492,985.
Application 16/783,455 is a continuation of application No. 16/191,503, filed on Nov. 15, 2018, granted, now 11,530,654.
Application 16/191,503 is a continuation of application No. 14/738,060, filed on Jun. 12, 2015, granted, now 10,221,780, issued on Mar. 5, 2019.
Prior Publication US 2023/0023142 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F02D 19/06 (2006.01)
CPC F02D 19/0613 (2013.01) [F02D 19/0605 (2013.01); F02D 19/0647 (2013.01); F02D 19/0673 (2013.01); Y02T 10/30 (2013.01)] 52 Claims
OG exemplary drawing
 
1. A dual fuel generator and fuel delivery system comprising:
a dual fuel generator comprising:
an engine configured to operate on a liquid fuel supplied from a liquid fuel source through a liquid fuel line and a gaseous fuel supplied from a pressurized fuel source through a gaseous fuel line, and
a carburetor attached to an intake of the engine to mix air and fuel and connect the liquid fuel line to the intake;
a fuel regulator system located off board the dual fuel generator, the fuel regulator system comprising:
a primary pressure regulator coupled to a service valve of the pressurized fuel source and configured to regulate the fuel supplied from the pressurized fuel source to a reduced pressure, and
a secondary pressure regulator coupled to the primary pressure regulator and configured to regulate the gaseous fuel supplied from the primary pressure regulator to a desired pressure for delivery through the gaseous fuel line to operate the dual fuel generator; and
a mechanical fuel valve actuatable between a first position and a second position to selectively control fuel flow to the engine from the liquid fuel source through the liquid fuel line and the pressurized fuel source through the gaseous fuel line.