SU1229397A1 - Internal combustion engine - Google Patents

Description

The invention relates to mechanical engineering, in particular to engine building, namely to internal combustion engines.

The purpose of the invention is to improve the economy of engine operation by improving the process of mixing.

FIG. a diagram of the proposed engine; in fig. 2 - change of volumes T and II, respectively, of the main and additional cylinders and the total volume III of these cylinders according to the angle of rotation of the crankshaft of the main cylinder during the phase shift of the additional cylinder of the secondary cylinder relative to the main axis by 70 5 in FIG. 3 — variation of the indicated volumes in the angle of rotation of the crankshaft of the main cylinder near the upper dead point (TDC).

FIG. 3 shows IV - change in the volume of the main cylinder; V and У1 - change in the volume of the additional cylinder and the total volume, respectively, when the phase of the piston of the additional cylinder is relative to the main piston by an angle equal to 85 VII and VIII - the change in the same volumes during the phase shift by an angle equal to

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The engine contains a main cylinder 1 and a smaller cylinder 2 in addition, equipped with a common combustion chamber 3 and pistons 4 and 5 connected to individual crankshafts 6 and 7, kinematically connected to each other through the piston 5 phase shift coupling 8 of the additional cylinder 2 relative to the piston 4 of the main cylinder 1 at an angle equal to 46-85. Kinematic connection between the shaft 6 of the main cylinder 1 and the shaft 7 of the additional

to

2293972

cylinder 2 is 1: 2, which doubles the frequency of rotation of shaft 7 over shaft 6, and the volume 5 of additional cylinder 2 is 5 iO% of the volume of the main cylinder

1, In the combustion chamber 3 in the zone adjacent to the auxiliary cylinder

2, the size of the fuel injector 9. The engine operates as follows;

When the piston 4 of the main cylinder moves to the bottom dead center (liMT) during the suction stroke, the piston

 5 5, the complementary cylinder 2 is also transferred to the BDC, and the volumes of the cylinders 1 and 2 are filled with an air charge. During the compression stroke, when the piston 4 is close to the TDC, ppr-- 20 shen 5 of the additional cylinder 2 due to the kinematic ratio 1: 2 between shafts 6 and 7 and the presence of a phase shift of the piston 5 relative to the piston 4 starts

25 from BDC to TDC, thus displacing the air charge from the additional cylinder 2 into the main one through the combustion chamber 3. Simultaneously with the air in the chamber 3 combustion through the nozzle

30 9 a jet of fuel is injected, which is mixed with air and lightens. The mixture of injected fuel and air is ignited by compression. However

35 the possibility of using forced ignition is not excluded,

Depending on the mode of operation, the mixing in the kinematic connection with shafts with shafts 6 and 7

40 engine bots vary — its compression ratio.

Thus, the implementation of the invention improves the efficiency of the engine.

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Compiled by V.Morozov Editor N.Dankulich Tehred V.Kadar Proofreader L.Patay

Order 2431/31 Circulation 523 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

INTERNAL COMBUSTION ENGINE, containing a main cylinder and a smaller additional cylinder, equipped with a common combustion chamber and pistons connected to individual crankshafts kinematically connected to each other through a phase shift clutch, an additional cylinder piston relative to the main piston by an angle equal to 46-85® , about the possibility of rotation with different frequencies, characterized in that, in order to increase the efficiency of its work by improving the process of mixture formation, the kinematic connection between the main shaft th cylinder and the shaft of the auxiliary cylinder is formed with a ratio of 1: 2, and the volume of the auxiliary cylinder volume is 5-10% osnovnogo.tsilindra "