Direct dual fuel stratification (DDFS) is a promising combustion mode to achieve satisfactory
engine performance with the effective control of ignition and combustion processes. In this …

(51) Int. Cl. portion extending beyond the valve head and within the hous F02M
57/06(2006.01) ing to form at least one gap, such as an annular gap. A current FO2M …

A method of operating an electronically controlled dual fuel compression ignition engine
includes injecting a pilot ignition quantity of liquid fuel into an engine cylinder from a dual …

A vehicular fuel system with onboard fuel characterization including an onboard combustion
modifier source capable of supplying a combustion modifier agent, such as hydrogen, and a …

Methods, systems, and devices are disclosed for chemically activating a fuel for injection
and ignition in a combustion engine. In one aspect, a method to initiate combustion includes …

(57) ABSTRACT A fuel injection valve co-injects a liquid and a gaseous fuel into the
combustion chamber of an internal combustion engine. A solid needle regulates the …

BACKGROUND Diesel engines are the most popular type of compression ignition engines.
Diesel engines introduce fuel directly into the combustion chamber. Diesel engines are very …

BACKGROUND Gaseous fuel engines are known for their ability to burn relatively clean
relative to their compression ignition engine counterparts. However, gaseous fuels are well …

(57) ABSTRACT A dual fuel system includes a dual fuel injector that has disposed therein a
gaseous nozzle chamber fluidly connected to a gaseous fuel inlet, and a liquid nozzle …

BACKGROUND There has been a continuing trend in the industry to expand the capabilities
of fuel injectors to allow for more versatility with respect to at least one of spray angles …