PL184200B1 - Method of and system for catalytically preparing an internal combustion engine fuel blend - Google Patents

Abstract

Catalytic mixture preparation system fuel for internal combustion engine, characterized between the central system the engine power supply (6) and the induction system engine (9), the creation chamber is connected fuel-air mixture o variable value of the cross-sectional area along the flow axis of the mixture (8).

Description

The subject of the invention is a system of catalytic preparation of a combustible mixture for a spark-ignition internal combustion engine, leading in particular to the reduction of the emission of harmful exhaust components.

There is known from the Polish patent specification No. 162 588 a method and a device for reducing the content of harmful basic exhaust components in a spark-ignition engine, in which the control systems with a lambda probe placed in front of the thermal afterburner, connected by flow channels with an additional air tank located behind the thermal afterburner. The solution according to Polish patent No. 162588 prevents the burning of lean fuel mixtures

The system according to the invention comprises an air / fuel mixture formation chamber arranged between the central engine fuel system and the engine induction system, the internal cross-sectional area of the air fuel mixture chamber along the mixture flow axis not being constant.

The system according to the invention improves the dynamic and ecological properties of a spark-ignition engine, enables the combustion of lean mixtures and reduces the emission of carbon monoxide, hydrocarbons and nitrogen oxides.

The subject of the invention is shown in the embodiment in the drawing which shows a diagram of a catalytic system for preparing a combustible mixture for an internal combustion engine.

The fuel tank 1 is connected through the fuel filter 2 in series with the fuel pressure regulation system 3 and directly bypass. The outlet of the fuel pressure control system 3 is connected in series through a device for catalytic fractional composition homogenization of the fuel 4, the fuel flow control system 5, the central fuel supply system of the spark ignition engine 6 to the air-fuel mixture formation chamber 8, with the outlet connected to the engine inlet system 9, wherein the central power supply system of the spark ignition engine 6 is connected through bypass and back with the fuel flow rate control system 5, and directly with the air filter 7. The gasoline from the tank 1 is fed to the device for catalytic homogenization of the fractional composition of the fuel 4 with subsequent components of the system. with an intensity regulated by the regulation system 5, and then the gasoline is pre-atomized in the central fuel supply system of the engine 6 and homogenized in the air-fuel mixture 8 chamber together with the air supplied through the air filter 7 and directed to the intake manifold of the engine ika 9 in the state of homogenized combustible mixture. The system of catalytic preparation of the combustible mixture was tested in practice on low and medium liter spark ignition engines, obtaining very good operational parameters.

184 200

184 200

Publishing Department of the UP RP. Circulation of 50 copies

Price PLN 2.00.

Claims (1)

Patent claim A system for catalytic preparation of a combustible mixture for an internal combustion engine, characterized in that a fuel-air mixture formation chamber with a variable cross-sectional area along the mixture flow axis (8) is connected between the central fuel system of the engine (6) and the intake system of the engine (9).