NOZZLE FOR PUMP AND PNEUMATIC SPRAYING OF FUEL Russian patent published in 2010 - IPC F02M47/00 F02B39/00 

FIELD: engines and pumps.

SUBSTANCE: invention is related to design and operation of internal combustion engine. Nozzle for pump and pneumatic spraying of fuel comprises cylindrical shell open at the top and bottom and arranged with circular ledge, press flange arranged as a whole with shell, body cover, cone valve with groove in upper part, valve seat with ledge, rod with hole for the whole length of rod, fixators-limiters of vertical shifts, hollow nozzle piston, having free space inside, nozzle cylinder, spraying disks with holes, which produce perforated labyrinth, nut of disks fixation, nozzles for compressed air and fuel inlet, electrically driven valves of compressed air and fuel control and supply, oval ledge on piston head, axial compressor, compressed air receiver, fuel tank. Nozzle drive is executed by means of electrically driven valves action at its piston for valve opening and closing and at fuel for its spraying by compressed air or overpressure of the fuel itself without compressed air, valve is connected with the help of thread to rod and is inserted top down into body till ledge stop at seat and in body. Fixators-limiters that limit value of vertical shifts in opening and closing of valve enter groove of valve and are screwed into threaded holes in valve seat. Size of fixators that protrude into groove is less than width of groove on valve. Limiter of piston stroke is inserted into body. Lower support part of body is installed with the possibility of free traveling inside nozzle body and is arranged with larger diametre compared to other part of piston stroke limiter, spring is installed on it, which rests on lower support part of piston stroke limiter by lower end, and touches lower plane of nozzle piston by upper end. Nozzle cylinder is inserted into body, rests on piston stroke limiter and is pressed by body cover. Pressing force of cover acts through cylinder to limiter of piston stroke and at valve seat. Piston space hosts spraying disks with holes, one of which has its whole area as perforated, the second disk has holes only in the centre, and the first on top has holes along periphery. Thread is cut in upper part of piston, and nut that presses disks is screwed into this thread. There are two threaded holes in cylinder cover, and compressed air nozzle is screwed in one of them, and fuel inlet nozzle is screwed into the other one. Holes with thread and holes in nozzles represent fuel supply and air supply channels. Electrically driven valve for control and supply of fuel is installed on pipeline for fuel supply, directly near nozzle for fuel supply. Electrically driven valve for supply and control of compressed air is installed on air duct.

EFFECT: invention makes it possible to burn all grades of liquid fuel, light and heavy, with addition of coal dust and liquefied gas and to achieve cycle of Beau-de-Rochas, which is optimal in thermodynamic respect.

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