INTERNAL COMBUSTION ENGINE Russian patent published in 2004 - IPC

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: according to invention, proposed internal combustion engine has cylinder with compression chamber, piston to compress fuel-air mixture and connecting rod consisting of several parts. One of parts of connecting rod is connected with crankshaft, and other is connected with piston through piston pin. Connecting rod includes also part with guides and space which is secured in part of connecting rod connected with piston by piston pin. Flexible members are placed between piston crown and crankshaft. These members are formed by spring clamped between parts of connected rod braced by stud passing inside spring. One end of stud is permanently secured in part of connecting rod connected with crankshaft and other end is driven into part of connecting rod with guides and space to slide along guides being held by nut freely passing in its space. Piston compresses fuel-air mixture near TDC to pressure leading to knocking, and part of energy of detonating gas is converted into spring compression potential energy, and then into crankshaft rotation kinetic energy in phase of working stroke of piston. Bolt can be driven through cover into compression chamber through value defined by selection of calibrating washers for each type and grade of fuel to provide knocking in compression chamber when piston comes to TDC. Small piston can be installed on combustion chamber cover near bolt with calibrating washers onto which follower of cam of camshaft acts when piston reaches TDC.

EFFECT: increased speed of crankshaft, enlarged possibility of use of fuels of different types and grades, reduced overall dimensions and weight of engine, reduced peak pressures on crankshaft and bearings, increased efficiency of engine.

5 cl, 1 dwg