SU891995A1 - I.c. engine - Google Patents

Description

(54) INTERNAL COMBUSTION ENGINE

The invention relates to mechanical engineering, namely engine-engineering, in particular, to devices for shutting off the intake tract of an internal engine; burnout There are engines of internal combustion containing an intake pipe with an air cleaner, an exhaust pipe, a bypass connecting the inlet pipe to the exhaust pipe, and an organ for blocking the gas-air duct. The overlap of the gas-air duct provides an accelerated stopping of the engine Sh. The disadvantages of the known engines are low reliability, since after closing the flap in the intake manifold a large discharge is created (the absolute pressure is 0.1-0.2 atm). .influences in the valve and cylinder-piston group, fresh air or a mixture of air with burning gases during gas emissions causes the engine to continue operating for a long time with little crankshaft rotation or in different wasps In addition, the reliability of the diesel engine stop is low, since the valve installed in the nozzle operates under the action of the same vacuum. If the valve is controlled by a mechanical, pneumatic, or hydraulic system, the device is a rather complex MANK, and the complexity of the design also causes its low reliability. In this case, the impact on the valve of scale and scale with exhaust gases can cause a complete failure of his work. In conventional engines, the valve is not protected from being formed on it. carbon, which does not exclude the ingress of carbon into diesel cylinders and cylinder wear, since exhaust gases are not filtered. The goal of the invention is to increase reliability. To achieve the goal, the air cleaner is supplied with a collector with an inlet hole located outside the air cleaner; channel with exhaust pipe with the possibility of their alternate overlap. The drawing shows a diagram of the device of the engine. The engine contains inlet pipe 1 with air cleaner 2 and exhaust manifold 3 with exhaust pipe 4. Air cleaner is equipped with manifold 5c with inlet 6, which is connected by exhaust pipe 4 bypass channel 7. Rotary valve 8 is installed in the junction of pipeline 4 and Anapa 7 The intake manifold 1 and the exhaust manifold 3 are connected to the cover of the cylinder 9 of the engine, in which the inlet 10 and w 1 inlet 11 valves are located. The engine works as follows. In normal operation, the shutter 8 is in the position shown in the drawing. The engine exhaust gases through the valve 11, the manifold 3 and the pipeline 4 in the exhaust stroke are emitted to the atmosphere. In the suction stroke, the cylinder is filled with air through hole 6, air cleaner 2, manifold 5 pipe 1 and valve 10. When an emergency engine stops, in any way, the valve is turned to the position where the exhaust pipe 4 closes and channel 7 opens. The exhaust gases through the channel 7 tangentially enter the colder collector 5, where they are twisted and by the action of centrifugal force and a higher specific weight displace the air through the central opening 6, completely fill the space around the air inlet 2. At the same time, some of the gases enter the engine cylinders that causes it to stop. In this way, the intake system is isolated from atmospheric air and gas filtration, which improves engine reliability. Formula of the invention Internal combustion engine, mainly diesel, containing an intake pipe with an air cleaner, an exhaust pipe, an overflow channel connecting the intake pipe to the exhaust, and blocking the gas-air duct, DIFFERENT by the fact that The air cleaner is equipped with a manifold with an inlet, located outside the junction cleaner, connection. The bypass channel with the inlet pipe is made in the form of a taignan pipe connected to the inlet of the collector, and the organ of the gas-air path is made in the form of a butterfly valve installed in the zone of the connection of the bypass channel to the exhaust pipe with the possibility of their alternate shut-off. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 492673, F 02 D 9/00, 1974.

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Claims (1)

Claim An internal combustion engine, mainly a diesel engine, comprising an inlet pipe with an air purifier, an exhaust pipe, a bypass channel connecting the inlet pipe to the exhaust pipe, and an air-duct blocking device, characterized in that, in order to increase reliability, the air cleaner is equipped with a manifold with an intake pipe a hole located outside the air cleaner, connection. The bypass channel with the inlet pipe is made in the form of a tangential pipe connected to the inlet of the manifold, and the gas-air duct shut-off element is made in the form of a rotary damper installed in the connection zone of the bypass channel with the exhaust pipe with the possibility of their overlapping.