SU1686212A1 - Internal combustion engine - Google Patents

Abstract

The invention relates to mechanical engineering. The goal is to reduce toxicity when using low-octane fuels. The internal combustion engine contains an intake manifold 1, a carburetor 2, an exhaust manifold 3 tanks 4 and 10 with low-octane and high-octane fuels, a heat exchanger 5, an air cleaner 6, a regulator 7 for the number of recycle exhaust gases, a fuel line 8, a faucet 9, a silencer 11 and a mixer 12 The engine provides for the utilization of the exhaust gases passing through the mixer 12, made in the form of a countercurrent vortex tube of the Ranka, a bath in which it uses from the kinetic energy of the vortex for spraying and evaporation of low-octane fuels in order to increase the completeness and speed of combustion, which reduces emissions of toxic components into the atmosphere 2 sludge.

Description

The invention relates to mechanical engineering, in particular to internal combustion engine carburetor engines operating on low-octane oil liquid petroleum fuels.

The purpose of the invention is to reduce toxicity when using low-octane fuels.

Figure 1 shows the functional scheme of the internal combustion engine; figure 2 - diagram of the mixer.

The internal combustion engine contains an intake manifold 1, a carburetor 2, an exhaust manifold 3, a low-octane fuel tank 4, a heat exchanger 5, an air cleaner 6, an exhaust gas recirculating gas regulator 7, a multi-position valve 9. a high-octane fuel tank 10 for starting an engine with high octane fuel and silencer 11.

The mixer 12, made in the form of a countercurrent vortex tube Ranka (may be direct) (see Fig 2), consists of

of the entrance to the cochlea 13 for exhaust gases, decorated with a spiral vault 14. At the level of maximum energy of change in the direction of radial velocities, a comb 15 is made along the width of the nozzle inlet 13 in the form of drop-shaped holes 16 with a base (largest cross section) to the inlet channel (pipeline) 17 low octane fuel that connects to inlet fitting 18 with a hot outlet 19 and a cold outlet 20 with a bypass channel 21

The engine runs as follows.

The engine is started from fuel tank 10 through valve 9, which supplies fuel through the fuel line 8 to the carburetor 2. The engine exhaust gases through exhaust manifold 3 and muffler 11 are completely exhausted to atmosphere until the engine and exhaust system are fully heated

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After the engine is heated according to the specified scheme, the mixer 12 is switched on (by the terminal 7 the amount of recirculated exhaust gas through the heat exchanger 5 (it is also a receiver of constant pressure at steady state of the engine). Low-octane fuel from tank 4 through the crane 9 through pipelines 0 goes to the cold outlet 20 (see FIG. 2) through fitting 18 and pipeline 17 to the spray comb 15, where crushing and evaporation occur due to the use of kinetic energy of exhaust gases. Ktanovy fuel (gas condensates) with exhaust exhaust gases (C02 and H.0) through the bypass channel 21 and in parallel through the hot exit 19 enters through the air cleaner G into the carburetor 2. and then into the engine.

Separating the mixture of low-octane fuel with exhaust gases using a mixer made in the form of a Ranio anti-current vortex tube into two streams allows for better evaporation in a hot stream than through a hot outlet 19 directly into the carburetor, and the cold one through outlet 20 bypass 21, where additional mixing and evaporation occur before entering the carburetor 2.

The presence of spent recirculating gas in a mixture with air and low-octane fuel reduces the likelihood of detonation combustion due to the presence of water vapor and carbon monoxide, and the improvement in the quality of low-gas hopplip preparation by aerogasdynamic spraying and evaporation in the Ranka tube increases the speed and complete combustion of fuel, which significantly reduces the emission of toxic components into the atmosphere.

Claims (1)

Claims An internal combustion engine comprising an air cleaner connected to an intake manifold, a fuel tank, a carburetor, an exhaust gas recirculation system communicating an exhaust manifold to an intake manifold, a heat exchanger-heater connected to the exhaust manifold and communicated with the engine intake manifold, in that , in order to reduce toxicity when using low-octane fuels, it is equipped with a mixer, made in the form of a counter-current vortex tube with a hot and cold exit mi, a tank of low-octane fuel, successively communicated through a distribution valve with a heat exchanger-heater and mixer, while the mixer has a cochlea with a spiral vault, the input communicated with the exhaust gas supply pipe, to which the low-octane fuel supply channel is connected, at the outlet of which is a distribution comb, conjugated with drop-forming holes of variable cross-section made on the surface of the cochlea with decreasing cross-sectional area in the direction of closing ki cochlea when entering the helical arch, wherein the hot and cold outlets of the vortex tube communicated with the air filter. 0 five 0 five 0 five RKMU at g 2 / B-OG Vwwb FIG. 2 20 /five