SPIRAL WELL ENGINE Russian patent published in 2004 - IPC

FIELD: spiral well-boring engines engineering. SUBSTANCE: engine has stator, rotor placed inside of stator for off-center movement, spindle, assembly for forming kinematic relation between rotor and spindle output shaft in a shape of moving link of sliding slit connection fixedly connected to stator, additional rotor support assembly having hollow housing, placed with a spacing and fixed to rotor by means of hollow shaft and support. Support is a planetary radial-thrust type comprising hollow ring fixed in a housing, floating intermediate bodies astride of housing, thrust rings, sets of radial floating disks placed with off-center diametric spacing between hollow housing and hollow shaft. Length of each off-center diametric gap as well as total of inner and outer gaps lengths on every radial floating disk equals doubled rotation eccentricity value of rotor. EFFECT: lowered axial and radial load on tools and supports, increased durability of engine. 4 cl, 3 dwg