LASER SPARK PLUG Russian patent published in 2018 - IPC F02P23/04 H01T13/00 F02B19/12 

FIELD: power machines.

SUBSTANCE: invention relates to power machines, specifically to laser spark plugs with an ignition cell, and can be useful in transport and heat power engineering. Laser spark plug contains body, insulator, laser microchip installed in the cavity inside the insulator, connected to it a vacuum tube, an optical window, a focusing lens, a prechamber with a conical cavity, flat with a central hole – between the optical window and the prechamber and target installed in the prechamber cavity, several outlets entering the conical cavity. Target is fixed on an axis on which two rotors of a birotate gas turbine are also rotatably mounted in the opposite direction. Rotors of the birotate gas turbine can be made with hubs. Hubs can be made with a conical outer surface and form a stepless aerodynamic canal. Inside the hubs, sliding bearings can be fitted. Sliding bearings can be ceramic. Disc may be formed with an inner surface having a parabolic shape. Target can be made in the form of a ball. Axis can be made stepped. Laser spark plug can contain an additional optical window with a protective cavity between the optical window and an additional optical window. Microchip laser can be installed on a shock absorber. On the insulator, from the side of the inner cavity, a metallized coating may be applied contacting the body. Outlets can be made tangentially.

EFFECT: technical effect: an increase in the service life of the laser spark plug by preventing contamination of the optics and the laser beam outlet.

12 cl, 9 dwg