INTERNAL COMBUSTION ENGINE Russian patent published in 2011 - IPC F02B75/32 F01B9/04 

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine (ICE) comprises cylinder-piston group, head with combustion chamber, mechanism of gas distribution, systems of mixture formation, fuel supply, lubrication and cooling, stems and longitudinal shaft, arranged as multi-cam. Axis of longitudinal shaft is parallel to ends of cylinders and is located in plane passing through axes of cylinders. One middle cam (8) and two functional cams (5) are arranged symmetrically to axis of each cylinder. Middle cam (8) has a longitudinal groove. Each of functional cams (5) is connected to piston and has radial ledge displaced by 90° from longitudinal groove towards the side opposite to rotation of shaft. Stem is made of two parts. One part of stem serves as master one (2), and the other one - as slave one (3). Master (2) and slave parts of stem are rigidly coupled with each other. Axes of master (2) and slave (3) parts are parallel and are arranged at the distance equal to shaft arm. Head for press fit onto piston finger (1) is arranged on upper end of master part (2). A slider (9) is mounted on lower end of master part (2). Longitudinal axis of master part (2) passes through centre of transverse axis of middle cam (8). Side surface of master part (3) is continuously pressed to shaft surface. On side surface of master part (3) there is a rectangular ledge arranged with the possibility to interact with longitudinal groove at the middle cam (8). Interaction takes place when micropush is created, and in process of suction. Lower end of slave part (3) may interact with set of plate springs.

EFFECT: development of ICE design with improved conversion of pressure in combustion chamber to torque, suitable for modernisation.

1 dwg