A ship propulsion system comprises at least one internal combustion engine with a combustion chamber for burning a fuel and a turbocharger with a compressor in an intake tract of the internal combustion engine. The ship propulsion system further comprises an electrolysis device, which produces hydrogen and oxygen gas, which are added on a pressure side of the compressor and conducted to the internal combustion engine. Moreover, a water tank and an alcohol tank are connected to a pressure side of the compressor in order to add water and alcohol to the charge air.

System for adapting an internal combustion engine to be powered by gaseous fuel in gas phase and by gaseous fuel, an internal combustion engine arrangement comprising the system and a method for adapting an internal combustion liquid fuel engine to be powered by gaseous fuel in gas phase and gaseous fuel in liquid phase.

The present invention provides a fuel supply system for injecting a liquefied vapour under high pressure into a combustion chamber of a combustion engine, comprising: (i) a first petrol fuel supply tank; (ii) a second liquefied vapour fuel supply tank; (iii) a petrol fuel high-pressure pump; (iv) a liquefied vapour high-pressure pump; (v) a fuel selector switch for operating the fuel supply system in a petrol feeding state or in a liquefied vapour feeding state; (vi) a high-pressure rail downstream of said high-pressure pumps, with multiple injectors for direct injection of fuel into the combustion chambers; and wherein said liquefied vapour high-pressure pump further comprises a piston for transmitting the pressure of petrol fuel in said petrol chambers to the liquefied vapour fuel in said liquefied vapour chambers.

An apparatus intercepts and modifies sensor signals generated by vehicle sensors and provides the modified signals to an engine control unit in the vehicle. The engine control unit is configured to receive the modified sensor signals and generate engine control signals based thereon. The apparatus includes a fuel composition sensor and a fuel control module. The fuel composition sensor senses characteristics of fuel in the vehicle and generates a fuel composition signal based on the sensed characteristics. The fuel control module, which intercepts the sensor signals from the vehicle sensors, includes a processor programmed to generate modified sensor signals based on the intercepted sensor signals and the fuel composition signal. Based on the modified sensor signals, the engine control unit optimizes the performance of the engine for a given ratio of alcohol to gasoline in an alcohol/gasoline fuel blend.

The invention involves a system and method for providing a liquid fuel or a liquid and gaseous fuel to a diesel or Otto cycle engine for operation of the engine. The system includes a primary electronic control module (ECM), which monitors engine sensors and contains a first three-dimensional fuel map for the liquid fuel. A second ECM is connected for bi-directional transfer of information to the first ECM, the second ECM contains a second three-dimensional fuel map for delivery of the gaseous fuel through a secondary gaseous fuel injection assembly. The bi-directional communication between the two ECMs while monitoring the engine sensors allows both ECMs to learn an efficient fuel map for delivery of both fuels in the same cycle for improved efficiency, reduction in slip and lower emissions.

A conventional gasoline engine is retrofitted and calibrated to operate as a bi-fuel engine using Hydrogen as the second fuel. When operated with Hydrogen, which typically leads to a reduction of engine output power, the engine is preferably operated in a charged mode and in a lean mode with the engine throttle kept in a wide open position during charged and lean mode operation resulting in a more efficient engine with a reduction of engine output power loss.

A conventional gasoline engine is retrofitted and calibrated to operate as a bi-fuel engine using Hydrogen as the second fuel. When operated with Hydrogen, which typically leads to a reduction of engine output power, the engine is preferably operated in a charged mode and in a lean mode with the engine throttle kept in a wide open position during charged and lean mode operation resulting in a more efficient engine with a reduction of engine output power loss.

An energy converting device and method for converting electric energy into chemical energy, including an electrolysis device which can be connected to an electrical network and is designed to split water into hydrogen and oxygen using electric power; a fuel synthesis device which is fluidically connected to the electrolysis device such that the fuel synthesis device can be supplied with hydrogen generated in the electrolysis device as a reactant, wherein the fuel synthesis device is designed to synthesize a fuel from hydrogen and carbon dioxide; and an internal combustion engine which is fluidically connected to the electrolysis device such that the internal combustion engine can be supplied with oxygen generated in the electrolysis device. The internal combustion engine is designed to be operated in a continuous mode using the oxygen generated in the electrolysis device as combustion gas.

Techniques, systems, and devices are disclosed for converting an alcohol and water mixture to hydrogen-rich gas inside a gasoline engine to power the gasoline engine vehicle. In one aspect of the disclosed technology, an electronic control module installed on a gasoline engine vehicle for controlling the gasoline engine vehicle to run on an alcohol and water mixture as fuel is disclosure. This electronic control module includes a processor, a memory, and an interface coupled to the ECU of the gasoline engine vehicle to receive various sensor signals from the ECU. The electronic control module also includes interconnects coupled to various modules of the gasoline engine vehicle to control a process of running the vehicle on the alcohol and water mixture stored in the gasoline tank of the vehicle. The said process includes converting catalyzed alcohol and water mixture to a hydrogen-rich gas inside a cylinder of the gasoline engine.

A method for operating an internal combustion engine includes a step of providing an oxygen-containing gas having greater than 22 volume percent oxygen and combining the oxygen-containing gas with a fuel to form a combustible mixture. The combustible mixture is provided to an internal combustion engine wherein combustion of the combustible mixture drive the internal combustion engine. An internal combustion system executing the method is also provided.