A system for remotely monitoring and controlling operation of a hydro-diesel engine, having: (a) a diesel engine assembly; (b) a hydro-diesel assembly connected to the diesel engine assembly; (c) a remote control system; and (d) a remote computer system in communication with the remote control system, wherein the remote computer system is configured to instruct the remote control system to turn off operation of either: (i) the hydro-diesel assembly while permitting the diesel engine assembly to continue operation while the hydro-diesel assembly is not operating, or (ii) both the hydro-diesel assembly and the diesel engine assembly.

A novel in-cylinder fuel injector has been created for internal combustion engines using gaseous fuels such as hydrogen and low-carbon alternatives. This injector enhances the reliability and fuel efficiency of both spark-ignited and compression-ignition engines. The injector's innovative design encompasses a poppet-style valve for fuel injection and a fuel supply valve to govern fuel flow. Furthermore, it incorporates a distinct lubrication system that caters to the valve, seat, and sliding surface. Additionally, the injector includes valve actuators and a control system, effectively managing fuel injector actuation, injection timing, quantity, and valve actuation sequence. Notably, the design also integrates a lubrication system with a control valve.

A supplemental fuel system includes a supplemental fuel tank, an electronic valve, a temperature sensor, and a controller. The supplemental fuel tank is configured to store a supplemental fuel configured to supplement a primary fuel used by an engine. The electronic valve is configured to be positioned between the supplemental fuel tank and an air supply system for the engine. The temperature sensor is configured to acquire temperature data regarding a temperature of the engine. The controller is configured to control the electronic valve such that the electronic valve is (i) closed to prevent the supplemental fuel from being provided to the air supply system in response to the temperature being less than a temperature threshold and (ii) open or openable to permit the supplemental fuel to be provided to the air supply system in response to the temperature being greater than the temperature threshold.

A system for remotely monitoring and controlling operation of a hydro-diesel engine, having: (a) a diesel engine assembly; (b) a hydro-diesel assembly connected to the diesel engine assembly; (c) a remote control system; and (d) a remote computer system in communication with the remote control system, wherein the remote computer system is configured to instruct the remote control system to turn off operation of either: (i) the hydro-diesel assembly while permitting the diesel engine assembly to continue operation while the hydro-diesel assembly is not operating, or (ii) both the hydro-diesel assembly and the diesel engine assembly.

A propane injection system for supplementing gasoline or diesel engines in vehicles such as automobiles and marine vessels. The invention would also be appropriate for use in turbines and jet engines by providing a secondary fuel source for improved fuel economy. A propane tank is mounted into the vehicle, such as within a cavity within the trunk of an automobile, and is connected to the air intake, exhaust, and turbo charger of the vehicle's stock engine system. A switch is used to activate the injection of propane directly into the engine cycle at two points to increase engine performance. The switch could be incorporated into an existing switch, such as the cruise control of an automobile, and may be canceled by depressing the brake pedal of the vehicle.

A portable generator includes an engine including an air-fuel mixing device, an alternator, first and second fuel reservoir fluidly coupled to the air-fuel mixing device, a first fuel valve and a second fuel valve movable to an open position that allows fuel to flow from respective fuel reservoirs to the air-fuel mixing device and a closed position that prevents fuel from flowing from respective fuel reservoirs to the air-fuel mixing device, a fuel selector input device operable to select the first or second fuel reservoir as the source of fuel, and a controller programmed to automatically open or close the first fuel valve and open or close the second fuel valve in response to an input from the fuel selector input device indicating selection of the first or second fuel reservoirs.

A method for fuel regulation during a non-motoring operating mode of an internal combustion engine is provided. A fuel regulator employs a first fuel to regulate pressure of a second fuel. The first fuel is communicated to the fuel regulator through a first fuel circuit. The method comprises actuating a fuel injector that introduces the first fuel and the second fuel into a combustion chamber of the internal combustion engine during the non-motoring operating mode. The fuel injector is actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into the combustion chamber and the first fuel drains from the first fuel circuit through the fuel injector to a supply tank.

A fuel supply system for a reciprocating-piston engine includes a storage tank; a wall of the storage tank defining a first aperture and a second aperture therethrough; a first fuel injector fluidly coupled with the first aperture of the storage tank via a pressure control module and a first fuel injector supply conduit; a pump fluidly coupled with the second aperture of the storage tank; and a second fuel injector fluidly coupled with an outlet port of the pump via a second fuel injector supply conduit. The pressure control module is configured to maintain a pressure in the first fuel injector supply conduit within a pressure range that includes a pressure value that is less than a pressure inside the storage tank. The pump is configured to maintain a pressure inside the second fuel injector supply conduit that is greater than the pressure inside the first fuel injector supply conduit.

A gaseous fuel engine system includes a quick start fuel system having a pressurized gaseous fuel supply, a fuel feed conduit and a quick start fuel admission valve. The fuel feed conduit is coupled to an intake conduit for the engine at a downstream fuel admission location. A main fuel system is coupled to the intake conduit at an upstream fuel admission location. The quick start fuel admission valve is electrically actuated to admit a pressured gaseous fuel from the pressurized gaseous fuel supply for quick starting the gaseous fuel internal combustion engine. The quick start fuel may have a fuel composition different than a fuel composition of the main fuel.

A supplemental fuel system for a machine with an engine is configured to monitor a voltage of a power supply of the machine based on voltage data acquired by a voltage sensor where the power supply is configured to receive power from an alternator driven by the engine, compare the voltage to a voltage threshold, and control an electronic lock off valve positioned between a supplemental fuel tank and an air supply system for the engine such that the electronic lock off valve is (i) closed to prevent a supplemental fuel from being provided from the supplemental fuel tank to the to the air supply system in response to the voltage being less than the voltage threshold and (ii) open or openable to permit the supplemental fuel to be provided to the air supply system in response to the voltage being greater than the voltage threshold.