Patent ID: 8499728

Claim:
A mufti-cylinder internal-combustion engine, comprising: a plurality of cylinder blocks comprising a plurality of combustion and compression reversible cylinder blocks configured to produce work, and a plurality of reversible precompression cylinder blocks configured to pre-compress a working fluid, wherein each of said plurality of cylinder blocks comprising: a cylinder having a cylinder body; a piston movable in said cylinder; a piston rod rigidly connected with said piston; and a linkage rod rigidly connected to each of said piston rod of said plurality of cylinder blocks, wherein said linkage rod and said plurality of piston rods and pistons constitute a rigid integral body, said linkage rod is connected to a crank link system such that the linkage rod is able to rigidly drive said piston of each of said plurality of said cylinder blocks to move in the same direction simultaneously and to arrive at a stroke position between a top dead center and a bottom dead center of said crank link system, wherein each of said plurality of combustion and compression reversible cylinder blocks comprises a closed cylinder body having a cylinder head and an assembly of a four-stroke internal-combustion engine, on one side of said piston, and a cylinder head and an assembly of a two-stroke reversible compressor, on the other side of said piston, wherein said closed cylinder body further comprising a gas combustion chamber for a four-stroke internal-combustion engine thermal cycle and an air compression chamber for a two-stroke compressor pumping cycle, and wherein said plurality of said cylinder blocks further comprising a first subset of cylinder blocks and a second subset of cylinder blocks, wherein the cylinders of said first subset of cylinder blocks are mounted directionally opposed to the cylinders of said second subset of cylinder blocks, and wherein a work stroke in the combustion chamber of said first subset of cylinder blocks causes an exhaust stroke in the combustion chamber of said second subset of cylinder blocks.