RU36127U1 - Multi-cylinder spark ignition internal combustion engine power system - Google Patents

Description

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MULTI-CYLINDER INTERNAL COMBUSTION ENGINE POWER SYSTEM WITH SPARK IGNITION

The invention relates to the field of engine building, and in particular to power systems that ensure the operation of engines on gas fuel.

A known power system for a carburetor engine containing a gasoline part, including a gas tank and a carburetor mixer with a gas float chamber, a main metering system, an idle system, an enrichment economizer system, an accelerator pump and a braking system for supplying gas to the main metering system, and a gas part, consisting of gas cylinders, an evaporator for liquefied gas or a heater for compressed gas, a reducer (see RF patent. No. 2072437 from 06/09/93, class F02M 13/00, 21/00).

A known power system for internal combustion engines, comprising a carburetor with a main flow channel and a metering system, diffuser and throttle located in it, a high-octane fuel dispenser with an adjustable mechanism in the form of a spring-loaded diaphragm with a drive rod and a vacuum drive, the working cavity of which is connected to the throttle space of the carburetor, and fuel supply circuits, each of which is equipped with a sprayer and a float chamber connected to the fuel tank (see RF patent No. 1325181 of January 24, 86, CL F02M 13/06).

A fuel supply device for internal combustion engines is known, comprising a carburetor mixer with a throttle valve and an attached gas supply system with a fine filter and a gas tank, and a gas supply system with gas cylinders connected in series, a filter with an electromagnetic shut-off valve and a gas reducer (see RF patent No. 2009355 from 02.25.91g, class F02M 13/08)

The reasons that impede the achievement of the technical result indicated below when using known systems is that when changing the parameters of the external environment and the air resistance at the inlet to the engine, instability of gas supply to the engine appears, which leads to a violation of the optimal gas supply to the engine cylinders in accordance with the mode engine operation.

The closest device of the same purpose to the claimed invention in terms of features is a multi-cylinder two-fuel supply system with spark ignition, consisting of a gasoline part containing a gas pump, a gas line to a carburetor, a gas solenoid valve, and a gas part containing a carburetor mixer, a pneumatic gas metering device having a vacuum cavity and metering spring, gearbox, gas cylinders connected in series (see, sheet 5, fig., - Schematic diagram of gas of fuel equipment Ania cars and buses. "Operating Instructions cars and buses to run on compressed natural gas ,. JSC" Ryazan Plant of automotive equipment, 2002).

The reasons that impede the achievement of the technical solution indicated below when using the well-known invention adopted as a prototype are the presence of pneumomechanical gas metering devices (gearbox and metering device) that are not sensitive to changing environmental conditions and supply gas only depending on the load mode of the engine.

The essence is the exclusion of the influence of changing environmental parameters and air resistance at the inlet on the change in the optimal gas supply to the engine cylinders by additional correction of its supply to the engine cylinders.

changing environmental conditions and inlet air resistance to reduce emissions of harmful substances with exhaust gases, increase the elasticity of the engine and its fuel economy.

The specified technical result in the implementation of the invention is achieved by the fact that in the power supply system of a multi-cylinder internal combustion engine with spark ignition, comprising a gasoline part including a gas tank and a gas pump, and a gas supply system containing a carburetor-mixer, a gas meter, a reducer, gas cylinders connected in series, a feature is that in the gas supply system, the dispenser is made electric and changing the passage section of the channel for supplying gas to the engine cylinders on command from the electronic control unit eniya on signals from sensors that monitor the working mixture in the cylinders as a function of engine operating conditions and varying environmental conditions and resistance vozdz ca inlet.

The drawing shows: a gas supply system for a multi-cylinder internal combustion engine with spark ignition.

The fuel supply system of a multi-cylinder internal combustion engine with spark ignition includes an engine 1, a carburetor mixer 2 with an air filter 3, a connecting pipe 5 of a gas mixer 4 with an electric metering device 6, connected by a pipe 7 to a low pressure gas reducer 8, which through a pipe 9, an electromagnetic valve 10 and a two-stage gearbox And is connected to gas cylinders 12. The engine is equipped with a crankshaft speed sensor 13, an absolute pressure sensor 14, connected anal 15 zadrosselnym karbyuratorasmesitelya space 16 2 and the electronic control unit 17 which is connected with sensors speed of the crankshaft 13, the absolute pressure of oxygen and 14 installed in the exhaust stream in the exhaust system of the vehicle (X-probe).

The operation of the internal combustion engine is as follows. Gas from the cylinders 12 through a two-stage gearbox 11 and an open solenoid valve 10 through a pipeline 9 enters a low-pressure gas reducer 8, which, under the influence of a control vacuum from the throttle space 16, delivers crude gas through a pipeline 7 to an electric batcher 6, which is controlled by an electronic unit 17 according to the signals of the speed sensors 13, absolute pressure 14, and X, the probe performs the correction of the supply of the amount of gas entering the engine cylinders through the carburetor mixer 2, the gas mixer 4 through line 5.

An advantage of the invention is that, as a result, the engine emits less harmful toxic substances with exhaust gases, has better elasticity and fuel economy due to the work on the optimal composition of the mixture due to more precise regulation of its electric dispenser controlled by an electronic control unit.

Claims (1)

The power system of a multi-cylinder internal combustion engine with spark ignition, containing a gasoline part including a gas tank and gas pump, and a gas supply system containing a carburetor-mixer, a gas meter, a reducer, gas cylinders connected in series, characterized in that the gas meter has an electric meter in the gas system and changing the passage section of the channel for supplying gas to the engine cylinders upon command from an electronic control unit receiving signals from sensors monitoring the composition of the working mixture in the cylinders depending ing on the engine operating conditions and varying the environmental conditions and the intake air resistance.