VACUUM-COMPRESSION JET PROPULSIVE DEVICE Russian patent published in 2006 - IPC F02K5/00 F04B27/02 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to internal combustion engines with rocking working members. Proposed vacuum-compression jet propulsive device contains drive engine carrying cylinder, double-acting piston, cranks, ball units, vacuum gauges, compressed air expanders, drive gears, toothed clutches, crank counterweights, oil pumps, carrying cylinder consisting of two sleeves, one press-fitted into the other. Two seats for bearings of crank are secured in middle part of cylinder. Ball units are installed at end faces of cylinder with compression chambers. Vacuum ports are made over perimeter of cylinder at extreme positions of piston crowns from compression chambers. Cooling ribs are made from outside of cylinder and journals are secured to mount drive gears. Double-acting piston divides inner space of cylinder into two variable-volume parts. Sealing rings and heads are fitted on piston. Crank is made detachable and provided with detachable pin. It is installed on two ball bearings in cylinder seats. Gears for toothed clutches are installed on crank axles. Each ball unit consists of housing and ball spool. Ball housing is made split and provided with two holes over perimeter to accommodate journals of ball spool, port for delivering air into compression chambers, and port to let out flow of compressed air into expander. Ball spool is installed for rotation in ball housing. Two compression chambers in form of semispherical space are made outside ball spool. Round seal rings are fitted in grooves over perimeter of said spaces. Two journals are secured coaxially in ball spool on which support bearings are fitted, being arranged in housing seats. Drive gear is installed on end of one of journals. Ball spoon rotates two times slowers than crank. Cermet porous inserts are installed in ball housing for lubricating the ball spool. Said inserts pass microparticles of lubricant under action of pressure to lubricate surface of ball spool. Vacuum gauges are made in form of hollow semirings with calibrated bells and filter, being installed over perimeter of cylinder over vacuum ports. Rectangular-section stepped expanders are installed on ball units together with nozzles and they can turn relative to ball units. Propellers with electric generators are installed on ends of expanders to reduce noise of expanding air and recuperate energy of air at end of expansion. Drive gears connect journals of ball spools with crank and are arranged in split casing of drive gears. Lobar rotary pumps feed lubricant to friction surfaces and pump out excess lubricant into oil spaces arranged in engine drive gear casing and between cylinder sleeves. Air compression chambers in engine are separated from cylinder spaces. With crank rotating, slider reciprocates along runners in piston frame, rotates together with crank and moves piston along cylinder. Propulsive device is essentially module, and modules are interconnected by clutches into cassettes. The latter form power circuit on suspension installed on vehicle and set into rotation by drive engine.

EFFECT: improved reliability of propulsive device.