A liquid fuel injector such as for a dual fuel system in an internal combustion engine includes two-way injection control valves for controlling twin outlet checks. A first set of orifices are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector, among a high-pressure inlet passage, a low-pressure space, and first and second outlet check control chambers, respectively. A common nozzle supply cavity is fluidly connected to the high-pressure inlet passage and supplies each of two sets of nozzle outlets opened and closed by the twin outlet checks.

A liquid fuel injector such as for a dual fuel system in an internal combustion engine includes two-way injection control valves for controlling twin outlet checks. A first set of orifices are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector, among a high-pressure inlet passage, a low-pressure space, and first and second outlet check control chambers, respectively. A common nozzle supply cavity is fluidly connected to the high-pressure inlet passage and supplies each of two sets of nozzle outlets opened and closed by the twin outlet checks.

The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

A portable flexible fuel generator, having an engine, includes: a cylinder and a spark plug in the cylinder, a primary fuel tank fluidly connected to the cylinder, an air intake path fluidly connecting atmosphere to the cylinder, a start module including a starting fuel tank holder and a starting fuel line, where the starting fuel line is fluidly connected to the air intake path, a coolant path which provide a flow path for coolant to cool the cylinder, and a thermal controller along the coolant path. Furthermore, the engine has full cylinder cooling.

Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.

Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.

Disclosed is a turbocharged dual-fuel engine, including a first driving system, a second driving system, a third driving system and a fourth driving system. The first driving system, the second driving system, the third driving system and the fourth driving system have the same structure. The first driving system includes a cylinder body in a gas compression device, a gas delivery pipe, a one-dimensional internal combustion engine, a tenth motor, an axial-flow gas compressor and a first lever braking device in a natural gas storage device. The tenth motor is connected with the axial-flow gas compressor. The axial-flow gas compressor is driven by the tenth motor.

Disclosed is a turbocharged dual-fuel engine, including a first driving system, a second driving system, a third driving system and a fourth driving system. The first driving system, the second driving system, the third driving system and the fourth driving system have the same structure. The first driving system includes a cylinder body in a gas compression device, a gas delivery pipe, a one-dimensional internal combustion engine, a tenth motor, an axial-flow gas compressor and a first lever braking device in a natural gas storage device. The tenth motor is connected with the axial-flow gas compressor. The axial-flow gas compressor is driven by the tenth motor.