INTERNAL COMBUSTION ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering. SUBSTANCE: invention can be used as engine in road and water vehicles, power engineering as stationary engines of compressors, electric generators and other machines and mechanisms. Proposed internal combustion engine contains valve actuating mechanism, fuel, lubricating and cooling systems, cylinder block with opposed cylinders and pistons and mechanism to transform reciprocating motion of pistons into rotary motion of drive shaft arranged in between. Said mechanism consists of two-sided external engagement rack installed between gears for alternate meshing with rack. Gears are rigidly secured on parallel shafts installed on antifriction bearings arranged in supports of housing of alternate tooth engagement mechanism and mechanically coupled by idler gear drive shaft. Cam are found on gears opposite to operating teeth. Stops alternately engaging with cams are made in parallel with toothed surfaces of rack. Point of extreme tooth of toothed surface of rack coming out of engagement changes into plain surface to level sufficient for forced unmeshing of rack. Extreme teeth of opposite surface of rack coming into engagement have contour same as that of gear. Lugs with holes for slider are found on plain ends of rack. Piston pin is fitted in slider. End sections of pin are arranged in holes of piston lugs, thus forming hinge joint. Lug of rack is made for vertical displacement relative to piston pin through value sufficient for unmeshing one toothed surface from gear and meshing of other toothed surface, thus changing direction of movement of piston group. Guides of slider are made with tilting through angle sufficient for creating opposite force equalizing radial forces of gear meshing in process of unidirectional travel of piston group. EFFECT: increased efficiency of engine and its service life, improved reliability and reduced specific material usage. 4 dwg