SU1629581A1 - Method of internal combustion engine operation - Google Patents

Abstract

The invention makes it possible to increase the efficiency of an internal combustion engine using hydrocarbon fuel conversion products as an additive. Due to the pump strokes of the piston of the reactor 2, a negative pressure is created in the rarefaction zone 8, while in the working zone 7 the pressure is always above atmospheric due to the excess pressure of the exhaust gases and the resistance of the developed membrane surface 6. Since membrane 6 has selective carbon dioxide permeability, in the presence of a pressure gradient, carbon dioxide from working zone 7 diffuses through membrane 6 into zone 8 of dilution, from where pipeline 9 enters reactor 2, and carbon dioxide compressed into reactor 2 are together with the atomized fuel that is needed to raise the temperature of the reactants and the reaction conversion, a result of said reaction between the hydrocarbon fuel and C02 formed new converted fuel consisting of hydrogen and carbon monoxide. From the reactor 2, the resulting converted fuel is fed to the cylinders of the engine 1, where it is burned along with the main dose of fuel. 1 il. J

Description

The invention relates to the field of mechanical engineering, and in particular to methods of operating internal combustion engines on primary and thermochemical processing of additional fuels. 5

The purpose of the invention is improving efficiency.

The drawing shows a diagram of an engine that implements the proposed method.

The internal combustion engine 1 contains a thermochemical reactor 2, which compresses and thereby heats the reactants. The reactor 2 can serve, for example, a piston machine, made in one block with the engine 1 and driven from the crankshaft of the engine. The exhaust tract 3 of engine 1 contains a soot trap filter 4 and connects engine 1 to a separator filter 5 of gas mixtures, in the inner cavity of which membrane 20 is installed, which has selective permeability to carbon dioxide (CO2) molecules. The membrane 6 divides the filter separator 5 into the working zone 7 and the vacuum zone 8, which simultaneously performs the role of the receiver. The rarefaction zone 8 is connected to the reactor 2 by a pipe 9, and a pipe 10 connects the reactor 2 to the intake tract 11 of the engine 1. The engine 1 is also equipped with a main fuel supply line 30 to the cylinders (not shown).

The method is implemented as follows.

The exhaust gases of engine 1, passing through the exhaust tract 3, are cleaned of soot particles in the soot trap filter 4, which is necessary to ensure normal operating conditions of the selective membrane 6. Then they fall into the working 40 zone of the filter separator 5.

Due to the pumping pistons of the reactor 2 in the rarefaction zone 8, which serves as the receiver at the same time, rarefaction is created, while in the working zone 7 45 the pressure is always higher than atmospheric due to the excess pressure of the exhaust gases and the resistance of the developed surface of the membrane 6, and silencer (not shown). Thus, in the separator filter 5, a pressure gradient is created between the working zone and the vacuum zone. Since the membrane 6 has selective permeability to carbon dioxide, in the presence of a pressure gradient, carbon dioxide from the working zone 7 diffuses through the membrane 6 into the rarefaction zone 8, from where it enters the reactor 2 through the pipe 9. The remaining part of the exhaust gas, depleted in carbon dioxide and enriched with nitrogen , from the working area 7 of the filter separator 5 is removed into the atmosphere.

The carbon dioxide entering reactor 2 is compressed together with liquid hydrocarbon fuel sprayed in the reactor chamber, which is necessary to increase the temperature of the reactants and carry out conversion reactions. As a result of this reaction between hydrocarbon fuel and COg, a new converted fuel is formed consisting of hydrogen (Ng) and carbon monoxide (CO). From the reactor 2, through the pipeline 10, the obtained converted fuel is supplied to the inlet tract 11 and further to the cylinders of the engine 1, where it burns with the main dose of fuel.

Claims (1)

SUMMARY OF THE INVENTION A method of operating an internal combustion engine by introducing air into the cylinders from the atmosphere, separating the fuel introduced into the cylinders into two streams, supplying the first fuel stream and adding exhaust gas to the thermochemical reactor, producing converted fuel in the latter, introducing the converted fuel and the second fuel stream into cylinders, burning these fuels and converting the energy of expanding gases into rotational energy of the shaft, characterized in that, in order to increase efficiency, By feeding into the reactor the additives of the exhaust gases, they are passed through a selective gas-permeable membrane, where they are separated into carbon dioxide and inert components, and the latter are taken into the atmosphere. Compiled by V. Shilov Editor E. Papp Tehred M. Morgenthal Corrector T. Malets Order 423 Circulation 347 Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.