FOUR-STROKE DIESEL ENGINE Russian patent published in 2014 - IPC F02B75/24 F02B27/04 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in diesel engines. A four-stroke diesel engine includes cylinders (1), upper cylindrical cover plate (2) attached to cylinders (1), a crank-and-rod mechanism, a gas distributing mechanism, an actuating mechanism of auxiliary units, an engine control mechanism and lubrication, feed, cooling and start-up systems. Cylinder (1) contains partition wall (4) from inside, which has a central hole with sealing elements (5) and divides inner volume of cylinder (1) into two equal cavities and closed from below with lower cover plate (6) having a central hole with sealing elements (7). Inside both cavities of cylinder (1) there inserted are pistons (9) with sealing elements (10), one for each cavity, which are connected to each other with stock (11) passed into central holes of partition wall (4) and lower cover plate (6). Lower end of stock (11) is connected to piston-rod (12). Piton-rod (12) is connected to crank of crankshaft (13). Partition wall (4) and pistons (9) with lower cover plate (6) form four working chambers in cylinder (1), each of which has an inlet device and an outlet device. The gas distributing mechanism includes input and output horizontal shafts with gears, each of which is connected to gears of crank shaft (13) by means of chain transmissions. Input and output vertical shafts (42) and (44) have cams to bring inlet and outlet valves into action. The horizontal input shaft is connected to vertical input shafts (42) by means of gears. The horizontal output shaft is connected to vertical output shafts (44) by means of gears.

EFFECT: simpler design of a gas distributing mechanism.

13 dwg, 1 tbl