INTERNAL COMBUSTION ENGINE Russian patent published in 2013 - IPC F02F7/00 F02B75/20 F01B1/12 F16M7/00 

FIELD: engines and pumps.

SUBSTANCE: proposed engine consists of cylinder block 1, cylinders 2, con-rod-and-piston mechanism, composite crankshaft 3, cylinder block head 5, and valve timing gear. Cylinder block 1 consists of, at least, two composite coupled sections 5. Said sections are coupled by bolts fed through openings made in cylinder block parallel with crankshaft rotational axis. Every said section 5 represents a bulky structural H-beam-shaped part. Its top section has recesses made opposite semicircular webs 9, their sizes corresponding to those of outer contour of cylinder sleeve 11 dissected in axial line. Section center has through hole 13 of crankshaft bearing 13. Con-rod-and-piston modules are mounted between sections 5. Said module comprises sleeve 11 to house piston 15 pin-coupled with con-rod 17 wherein fitted is rod bearing 19 with support bush 19 coupled with webs 20 via spacer rings 21, blocks 22 and bolt joint 23. Webs 20 accommodate modules of main bearings composed of main bearing 12, split splined bush 24, blocks 25, spacer rings 25 coupled by bolts 27. End cover 30 of auxiliary mechanism drive 31 and clutch case are fitted on sides of cylinder block 1.

EFFECT: decreased weight and overall dimensions, higher quality of assembly.

8 dwg