Abstract: A system and process for improving the combustion of fuel oil in boilers employs: (1) dual homogenization of fuel oil and water; (2) recovery of heat from, and injection of, boiler waste water in the homogenization system; (3) mixing of urea and boiler waste water and injection into the boiler exhaust gases.

Abstract: A system and process for improving the combustion of fuel oil in boilers employs: (1) dual homogenization of fuel oil and water; (2) recovery of heat from, and injection of, boiler waste water in the homogenization system; (3) mixing of urea and boiler waste water and injection into the boiler exhaust gases.

Abstract: A hydraulically operated adjustable valve for controlling fluid flow through an orifice directly responsive to changes in pressure monitored either upstream or downstream of the valve, suitable for use in high pressure regimes, where said valve is controlled by a piston having a main body, a shoulder and an extension, where hydraulic fluid within a hydraulic bore acts upon said extension to extend said piston, and where a biasing spring acts on the main body in combination with pressurized air within a lower air chamber air acting upon said shoulder to retract said piston. An apertured valve barrier allows the valve to compensate for pressure changes in a high pressure regime upstream of the valve.

Abstract: A homogenization apparatus for intermixing insoluble components, such as fuel oil and water, comprising a first compensating valve and homogenizing orifice where initial intermixing of the two components occurs, pump means, a high pressure chamber, and a second compensating valve and homogenizing orifice where secondary mixing occurs. The first compensating valve adjusts the first orifice responsive to downstream pressure, while the second compensating valve adjusts the second orifice responsive to upstream pressure.

Abstract: An adjustable orifice assembly adapted for use in a homogenization apparatus for intermixing a multicomponent stream includes a pair of opposed orifice defining elements removably secured to a control assembly to provide a variable orifice in effecting the homogenization of the stream.

Abstract: A fuel system is described for homogenizing a liquid fuel component and a fresh water component by an adjustable emulsifying orifice. The downstream pressure of the homogenized fuel and water components at the suction side of a feed pump is monitored and controlled by a compensating valve which continuously and automatically adjusts the orifice size within the adjustable emulsifying orifice. The compensating valve is arranged in fluid communication with the suction side of the pump to be operative in response to changes in the pressure. The compensating valve is of the diaphragm type having an underlying piston provided with piston rings which prevent fluid communication between the suction side of the pump and its internal connecting assembly in the event of rupture of the diaphragm.