10 results about "Fuel control unit" patented technology

A dual fuel system includes a fuel injector having a fuel pressurization plunger, and a fueling control unit structured to determine a fuel bulk modulus term based upon a volume change value (dV) and a pressure change value (dP) for a fuel pressurized in the fuel injector. The fueling control unit is further structured to determine fuel injector control commands by way of map lookups on fueling maps selected on the basis of the fuel bulk modulus term. Related apparatus and methodology are also disclosed.

A propulsion system (20) includes a propulsor (26), an engine (22), an electrical assembly (24), and an emergency energy protection assembly. The engine (22) includes a fuel system (38). The fuel system (38) includes a fuel control unit. The electrical assembly (24) includes a battery (66), a motor control unit (64), an electric motor (62), and an electrical distribution system (68). The electrical distribution system (68) includes at least one contactor electrically connected between the battery (66) and the motor control unit (64). The at least one contactor is switchable between a closed state and an open state. The engine (22) and the electric motor (62) are coupled with the propulsor (26). The emergency energy protection assembly includes an emergency actuator. The emergency actuator is actuable in an actuated state to control the at least one contactor to switch to the open state, control the motor control unit (64) to deenergize the electric motor (62), and control the fuel control unit to stop fuel flow for the engine (22).

A propulsion system includes a propulsor, an engine, an electrical assembly, a controller, and an uncontrollable high thrust (UHT) protection assembly. The engine includes a fuel system. The engine is coupled with the propulsor. The fuel system includes a fuel control unit. The electrical assembly includes an electric motor and a motor control unit. The electric motor is coupled with the propulsor. The motor control unit is electrically connected with the electric motor. The controller includes a first controller channel. operable to control the fuel control unit to direct fuel to the combustor and to control the motor control unit to direct electrical power to the electric motor. The UHT protection assembly includes a first protection circuit operable to identify a presence or an absence of a UHT condition of the propulsor and, in response, generate a shutdown signal for the fuel control unit and the motor control unit.

The invention discloses an intelligent control system, method and device for an industrial furnace. The intelligent control system comprises an air-fuel regulation and control unit, an intelligent ignition unit, a furnace temperature regulation and control unit, a tempering protection unit, a flameout protection unit and the like. Each unit is electrically connected with a PID controller or a DCS intelligent control system, and the PID controller is electrically connected with the DCS intelligent control system. By dynamically adjusting the mixing ratio of fuel gas and air, ignition is remotely triggered, the ignition state is detected, the temperature of a hearth is detected and controlled in real time, backward flow of flame of the hearth is detected, fuel gas is cut off, and fuel gas is cut off when flameout of a combustor is detected. According to the industrial kiln, an intelligent control system is adopted, air-fuel ratio self-adaptive adjustment is combined with cooperative control of a frequency conversion fan and an electric control valve, the fuel gas utilization rate is increased, and comprehensive energy consumption is reduced; innovation of an intelligent operation and maintenance system is achieved, and gas and electric power energy consumption can be reduced.

A dual fuel system (22) includes a fuel injector (24) having a fuel pressurization plunger (28), and a fueling control unit (54) structured to determine a fuel bulk modulus term based upon a volume change value (dV) and a pressure change value (dP) for a fuel pressurized in the fuel injector. The fueling control unit is further structured to determine fuel injector control commands by way of map lookups on fueling maps selected on the basis of the fuel bulk modulus term.

A dual fuel system includes a fuel injector having a fuel pressurization plunger, and a fueling control unit structured to determine a fuel bulk modulus term based upon a volume change value (dV) and a pressure change value (dP) for a fuel pressurized in the fuel injector. The fueling control unit is further structured to determine fuel injector control commands by way of map lookups on fueling maps selected on the basis of the fuel bulk modulus term. Related apparatus and methodology are also disclosed.

The utility model relates to the technical field of fuel gas systems, in particular to a general gasoline engine applicable fuel gas power-free hand-pull control system which comprises a fuel gas control part, a fuel oil control part and a general gasoline engine, and the fuel gas control part comprises a CNG gas cylinder, an LPG gas cylinder, a first-stage pressure reducing valve I, a first-stage pressure reducing valve II, a fuel gas electromagnetic valve and a power module; the power supply module is connected with a power generation part of the general gasoline engine and the gas electromagnetic valve at the same time; the fuel oil control part comprises a fuel oil tank and a fuel oil control piece which are connected with each other, the fuel oil control piece is connected with the gas electromagnetic valve and the general gasoline engine at the same time, and gas can enter the general gasoline engine from the gas electromagnetic valve through the fuel oil control piece. The method has the effect that the general gasoline engine can be started by hand pulling when gas such as LPG (liquefied petroleum gas) or CNG (compressed natural gas) is used as fuel under the conditions that the storage battery is low in electric quantity, damaged or even unavailable.

A propulsion system includes a propulsor, an engine, an electrical assembly, and an emergency energy protection assembly. The engine includes a fuel system. The fuel system includes a fuel control unit. The electrical assembly includes a battery, a motor control unit, an electric motor, and an electrical distribution system. The electrical distribution system includes at least one contactor electrically connected between the battery and the motor control unit. The at least one contactor is switchable between a closed state and an open state. The engine and the electric motor are coupled with the propulsor. The emergency energy protection assembly includes an emergency actuator. The emergency actuator is actuable in an actuated state to control the at least one contactor to switch to the open state, control the motor control unit to deenergize the electric motor, and control the fuel control unit to stop fuel flow for the engine.

Systems and procedures for controlling the fuel supplied to the cylinders of an internal combustion engine are described. In one example, the fuel is controlled in response to an output from two different fuel control units on an external circuit. The fuel can be controlled according to the individual, separate outputs of the external circuit's control units or the combined outputs of the two different fuel control units.

An alternative fuel management system may include a base configured for arrangement on a supporting floor or other framework of a vessel and configured to support alternative fuel supply equipment. The system may also include a sealed enclosure sealingly coupled to the base and configured to surround the alternative fuel supply equipment. The system may also include the alternative fuel supply equipment and it may be arranged within the sealed enclosure. The alternative fuel supply equipment may include a high-pressure pump, a fuel filter, a transfer pump, and a high-pressure fuel delivery line extending across the sealed enclosure and configured to provide alternative fuel from the high-pressure pump to a combustion engine. The alternative fuel management system may also include a purge fluid system configured to deliver purge fluid to the combustion engine from a source of purge fluid.