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

FIELD: machine building.

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 comprises a housing, insulator, microchip-laser, installed in the cavity inside the insulator, vacuum tube connected to it, optical window, focusing lens, ignition cell with a cylindrical cavity, passing into a conical, bounded by a conical wall and frontal bottom, washer with a central hole – between the optical window and the ignition cell and target installed in the cavity of the ignition cell and fixed by means of a holder on the frontal bottom, several outlets on the conical wall. Inside the cylindrical cavity, two rotors of the birotate gas turbine are rotatable in opposite directions. Rotors of the birotate gas turbine can be made with an external bandage. Sliding bearings can be installed between the inner cylindrical surface and the bandages of the rotors. 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. Laser plug may comprise 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 contacting the body may be applied. Outlets can be made tangentially.

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

10 cl, 8 dwg