What is proposed is an emulsifying system with an emulsifying device and an injection nozzle as well as an emulsifying device for producing a water-fuel emulsion for an internal combustion engine, wherein the emulsifying device is embodied as a rotor-stator emulsifying device and/or fluid flow machine and/or is connected or connectable directly to an injection nozzle. The emulsifying device has a housing and a shaft, the shaft being drivable in a contactless manner, the housing having a guide apparatus having a plurality of guide channels for guiding the flow, and/or the housing being made at least partially from fiber composite material. Moreover, an emulsifying method for producing a water-fuel emulsion is proposed in which water and fuel are fed to a rotor-stator emulsifying device and/or fluid flow machine for producing the water-fuel emulsion, and/or in which water and fuel are premixed in a first emulsifying stage and fed via a guide apparatus having a plurality of guide channels to a second emulsifying stage.

A method and a device for open- or closed-loop control of an amount of water mixed with a fuel is provided. A fuel supply is split into a first branch having a Venturi pipe with a vacuum connection and a second branch having a blocking valve. Water is supplied to the Venturi pipe vacuum connection, and the fuel-water mixture in the first branch and the fuel in the second branch is supplied to the fuel pump. Open-loop or closed-loop control is provided by either reducing fuel flow in the second branch with the stop valve such that the fuel flow in the first branch increases, increasing the amount of water mixed in the fuel at the Venturi pipe, or increasing fuel flow in the second branch such that first branch fuel flow decreases, decreasing the amount of water mixed in the fuel at the Venturi pipe.

A liquid sprinkling device of the present invention includes a rotating shaft disposed in a vertical direction, and at least one liquid flowing member attached to the rotating shaft. In this liquid sprinkling device, the liquid flowing member includes an outlet located on an upper side, an inlet located on a lower side, and a tubular channel extending between the outlet and the inlet, and the tubular channel is bent so that the outlet is pointed toward the lower side.

A carburetor with a fuel adjustment tamperproof valve assembly and specialized tools for adjusting the valve assembly. A needle valve is received in a recess in a carburetor body with a passage open to the exterior of the body and a cylindrical surface of the passage. A valve head with a cylindrical exterior surface is received in the passage with a slight clearance between them. The specialized tools are engageable with the head to adjust the valve by rotating it.

A carburetor with a fuel adjustment tamperproof valve assembly and specialized tools for adjusting the valve assembly. A needle valve is received in a recess in a carburetor body with a passage open to the exterior of the body and a cylindrical surface of the passage. A valve head with a cylindrical exterior surface is received in the passage with a slight clearance between them. The specialized tools are engageable with the head to adjust the valve by rotating it.

A method and apparatus for mixing at least two fluids is provided. The method involves using means for providing a spiral stream of a first fluid and a second fluid is injected directly inside the first fluid to achieve effective mixing.

Systems for generating stable emulsions may employ one or more liquid-liquid ejectors for mixing the oil with water through motive and suction streams to produce the emulsion as a discharge stream. One or more motive tanks may be fluidly coupled to the one or more liquid-liquid ejectors; the one or more motive tanks may supply the one or more liquid-liquid ejectors with a motive fluid. One or more suction tanks may be fluidly coupled to the one or more liquid-liquid ejectors; the one or more suction tanks may supply the one or more liquid-liquid ejectors with a suction fluid. One or more discharge tanks may be fluidly coupled to the one or more liquid-liquid ejectors; the one or more discharge tanks may collect an emulsion from the one or more liquid-liquid ejectors. Additionally, a flow line coupled to the one or more discharge tanks may feed the emulsions into a formation.

A multi-fluid blending system employing low-energy static mixing provides efficient mechanical blending process for mass-producing thermodynamically stable hydro-fuels, eliminating the need of high-energy mixing equipment, and maintaining a compact, cost-effective design. Suitable for small to large-scale production, the system produces microemulsions following Hydrophilic-Lipophilic Difference (HLD) surfactant formulations. Modular design allows for scalable applications, from equipment installations to trailer-mounted units and onboard ships. The system ensures the production of hydro-fuel microemulsions using precise metering, dosing systems and low-energy static mixing. Hydro-fuels produced reduce engine combustion emissions and harmful pollutants, hydrocarbons, particulate matter, black carbon and smoke opacity, benefiting the environment and human health.

The temperatures of fuel oils stored in fuel tanks 12a, 12b, 12c are separately detected by temperature sensors 52a, 52b, 52c, respectively. Based on the detection results, a CPU 49 heats a heat resistant fuel oil among the fuel oils using a heat exchanger 54, such that the temperature of an oil mixture generated by mixing the fuel oils satisfies a predetermined temperature condition. After the fuel oils including the heated heat resistant fuel oil are mixed in a blender 13, the CPU 49 detects the viscosity of the generated oil mixture using a viscometer 33. Thereafter, based on the detection result, the CPU 49 controls the mixture ratio or a heating temperature of the heat resistant fuel oil, such that the viscosity of the oil mixture satisfies a predetermined viscosity condition.

A carburetor with a fuel adjustment tamperproof valve assembly and specialized tools for adjusting the valve assembly. A needle valve is received in a recess in a carburetor body with a passage open to the exterior of the body and a cylindrical surface of the passage. A valve head with a cylindrical exterior surface is received in the passage with a slight clearance between them. The specialized tools are engageable with the head to adjust the valve by rotating it.