INTERNAL COMBUSTION ENGINE Russian patent published in 2013 - IPC F02B75/32 F01B9/04 

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine (ICE) consists of a cylinder-piston group, an engine head with a combustion chamber, a gas distributing mechanism, systems of mixture formation, fuel feed, lubrication and cooling, stocks and a longitudinal shaft. The shaft is of multicam type; its axis is parallel to edges of cylinders and is located in the plane passing through axes of cylinders. Cams are made symmetrically to the axis of each of the cylinders, with three cams opposite each cylinder, including one middle cam having the longitudinal groove and two functional cams, each of which is related to the piston and has a radial projection offset through 90° from the groove to the side that is opposite to the shaft rotation. Each of stocks (1) consists of two parts, one of which serves as a drive part, and the other one is driven. Both parts of stock (1) are rigidly paired to each other so that their axes are parallel and located at the distance equal to the shaft arm. A head for press fitting on a piston pin is located on upper end of the drive part of the stock, and slide (10) is mounted on lower end. Longitudinal axis of the drive part of the stock is aligned with the piston axis on each driven stock, the end of which freely moves at the piston stroke in annular shell mounted on the shaft cover plate, cylindrical through hole (7), the longitudinal axis of which is located normally to longitudinal axis of the driven stock, is made. To cylindrical hole (7) there introduced is hollow rigid cylinder (2) via sliding, in which on the side of the shaft there formed is head (3) in the form of a transverse projection; on the other side on inner surface of cylindrical hole (7) there is a thread, where external cap (6) with inner diameter equal to outer diameter of rigid cylinder (2) is mounted. Compression spring (4) with force adjustment by means of cap (6) is located inside cylinder (2). Cylinder (2) has the possibility of being moved along longitudinal axis. Cylinder (2) is fixed against the possibility of being turned about the longitudinal axis; at full turn of the shaft, transverse projection on stock (1) has the possibility of entering the groove on middle cam (9) of the shaft.

EFFECT: simpler design and improved reliability.

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