AN ENGINE WITH A SEPARATE COMBUSTION CYCLE

Authors

  • G.G. Manasaryan National Polytechnic University of Armenia Author
  • S.S. Chibukhchyan National Polytechnic University of Armenia Author

Keywords:

engine, crankshaft, stroke, cycle, piston, cam

Abstract

The development of the internal combustion engine (ICE) represents the greatest achievement of the last century, having a transformative impact on social aspects, particularly mobility.

Currently, the world's population's need for energy is growing daily. One of the first consumers of energy carriers in liquid and gas form are internal combustion engines with a crank mechanism (CCM), the power and number of which are growing every year, and fuel consumption is correspondingly increasing. The modern internal combustion engine is “not a great product.” This means that it can and should be improved ad infinitum. These are the words of the president of the Rockefeller family venture fund-Venrock.

Today, various basic diagrams of internal combustion engines are known, in which the crank mechanism is made in different versions.

However, the main disadvantage of various types of crankshafts, in particular crankshafts in internal combustion engines, is that during the operation of the internal combustion engine, the arm created by the crankshaft (crankshaft) changes in various ways, to which (arm) the force developed at the bottom of the piston is applied, which creates a torque transmitted to the output shaft. As a result, due to the changing value of the arm with which the connecting rod acts on the crankshaft in an internal combustion engine with a crankshaft, we have significant losses; the efficiency coefficient is approximately 0.4.

The proposed four-stroke gasoline engine does not have a crankshaft and connecting rod, the combustion process in it occurs in a constant volume of the combustion chamber, and is separated into a separate additional stroke, and the operating cycle is implemented in one revolution of the engine shaft, which ensures a significant increase in the technical and operational performance of the engine.

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Published

15.02.2026

Issue

Section

Articles