I have a book titled "Diesel Technology" by Norman, Corinchock, & Schariff. On pages 298-299 it discusses a diesel/water emulsifier. It is made by Harrier Inc. and is about the size of a shoe box. I am wandering if anyone knows where I can find more information about this unit or a similar unit. I have copied some of the text from the book below.
"The diesel/water emulsion system is capable of reducing emissions of NOx particulates, hydrocarbons, and carbon monoxide up to 90%. The major components of the unit include an electronically controlled mechanical mixing unit situated between the fuel filters and the injection pump, which produces a consistent and uniform emulsion of diesel fuel and water. The percentage of water in the emulsion can be pre-set fom five to more than 30%. An electronic control module maintains this percentage as a function of fuel flow.
The emulsion is created by shear forces between the fuel and the water in a pear-shaped vortex chamber inside the mixing unit. The fuel is pumped to the mixing unit where it enters a ring channel that surrounds the vortex chamber. From this ring, the fuel flows into the vortex, at a high speed of rotation.
The water is injected into the center of the vortex, parallel to its lingitudinal axis. The high rotational speed of the fuel and the shape of the vortex causes the water and fuel to bond well before the end of the vortex. As the emulsion exits the vortex it flows through a circulation pump to the engine's injection pump. Only part of the emulsion enters the combustion chamber. Most is returned to the injection pump where it continuously recirculates throughout the mixing unit.
At this point, the diesel fuel has formed a skin around the water droptlets. When the emulsion is injected into the combustion chamber, the water droplets expand or "spontaneously evaportate," rupturing the fuel skin and dispersing it into much smaller droplets. This causes a significant reduction in exhaust emissions by improving combustion efficiency and fuel atomization, increasing the fuel's fluid momentum, and cooling the combustion chamber's flame zone. "
I think this unit will also improve fuel economy and power. It seems to me like a more efficient method of water injection.
Michael
"The diesel/water emulsion system is capable of reducing emissions of NOx particulates, hydrocarbons, and carbon monoxide up to 90%. The major components of the unit include an electronically controlled mechanical mixing unit situated between the fuel filters and the injection pump, which produces a consistent and uniform emulsion of diesel fuel and water. The percentage of water in the emulsion can be pre-set fom five to more than 30%. An electronic control module maintains this percentage as a function of fuel flow.
The emulsion is created by shear forces between the fuel and the water in a pear-shaped vortex chamber inside the mixing unit. The fuel is pumped to the mixing unit where it enters a ring channel that surrounds the vortex chamber. From this ring, the fuel flows into the vortex, at a high speed of rotation.
The water is injected into the center of the vortex, parallel to its lingitudinal axis. The high rotational speed of the fuel and the shape of the vortex causes the water and fuel to bond well before the end of the vortex. As the emulsion exits the vortex it flows through a circulation pump to the engine's injection pump. Only part of the emulsion enters the combustion chamber. Most is returned to the injection pump where it continuously recirculates throughout the mixing unit.
At this point, the diesel fuel has formed a skin around the water droptlets. When the emulsion is injected into the combustion chamber, the water droplets expand or "spontaneously evaportate," rupturing the fuel skin and dispersing it into much smaller droplets. This causes a significant reduction in exhaust emissions by improving combustion efficiency and fuel atomization, increasing the fuel's fluid momentum, and cooling the combustion chamber's flame zone. "
I think this unit will also improve fuel economy and power. It seems to me like a more efficient method of water injection.
Michael
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