RU43914U1 - INTERNAL COMBUSTION ENGINE EXHAUST SILENCER - Google Patents

Abstract

The utility model relates to engine building, in particular, to silencers of exhaust noise of internal combustion engines. The exhaust silencer of an internal combustion engine includes a cylindrical body with inlet and outlet pipes, an active partition located in the end wall, due to which the initial exhaust gas turbulence occurs, located along the axis of the body of the rod, on which a screw is installed, consisting of them welded together circles made of sheet steel. The screw is fixed relative to the housing. The exhaust gas, passing through the rod, swirls. A supercharger nozzle is mounted at the beginning of the screw, which is divided into two parts. The first part, a nozzle in the form of a truncated cone, accelerates the gas stream, and the second, a perforated cylinder (plugged on one side), creates anti-movement due to gas escape through openings that are extruded at the same angle to the cylinder surface. The proposed silencer allows you to increase the efficiency of the internal combustion engine, power and efficiency of the engine.

Description

The utility model relates to engine building, in particular to silencers of exhaust emissions of an internal combustion engine (ICE).

Known silencer of the exhaust exhaust of an internal combustion engine, containing a cylindrical body with inlet and outlet nozzles, swirlers, which are made in the form of a surface of a truncated cone, fastened around the perimeter of a small base with an annular partition facing the inlet pipe and having openings with bent petals. The surface of the truncated cone of the swirler is equipped with spring guide vanes (RU No. 2113600).

A disadvantage of the known silencer is the complexity of its manufacture due to the complex structure.

The closest technical solution to the claimed is a silencer for the exhaust of an internal combustion engine (RU No. 2116468, 1998.07.27 adopted as a prototype). The muffler contains a housing equipped with an inlet and outlet, divided into an inlet and outlet chamber by means of a transverse partition made in the form of a mesh diffuser, a swirl mounted near the inlet and additional semicircular partitions installed at an angle of 70-80 degrees relative to the internal the surface of the body in a checkerboard pattern in the direction of gas flow. The swirl is made in the form of a nozzle with spiral-shaped blades.

The disadvantage of this technical solution is the more time-consuming manufacture of the nozzle, the partitions are made of more expensive material, when the gas stream passes through the partitions, its speed decreases, as a result of which the resistance to exhaust

engine gases, which leads to a decrease in the efficiency of the engine.

The problem to be solved by the claimed utility model is as follows: increasing the efficiency of the internal combustion engine, reducing fuel consumption, efficiency in the manufacture of a muffler.

This problem is achieved in that the silencer of the exhaust exhaust of an internal combustion engine comprises a housing, an inlet and an outlet pipe, a vertical partition with an opening mounted near the inlet pipe, at least two swirlers and a supercharger.

In contrast to the prototype, a rod is installed along the axis of the body, one of the swirlers is made in the form of a screw, consisting of circles connected (for example, soldered) to each other (for example, sheet steel) mounted on the rod and fixed relative to the body, the supercharger is made in the form nozzle located at the beginning of the rod, representing a cone-shaped nozzle, passing into the perforated cylinder with a cap at the end. The nozzle holes are squeezed out at the same angle to the cylinder surface and direct the exhaust gas stream tangentially to the nozzle cylinder, thus, the first nozzle part — the nozzle accelerates the gas stream. And the second part - the perforated cylinder creates an anti-movement due to directed discharge holes. The vertical partition is made in the form of a ring, creating an initial swirl of exhaust gases.

In this muffler, the following structural elements can be classified as new:

1. An active partition creating an initial turbulence.

2. A nozzle-supercharger with directed discharge openings, which creates acceleration and anti-movement of the gas flow and sound wave.

3. The main element is the screw, which creates the main turbulence of the gas stream.

The essence of the utility model is illustrated in the figure, which shows a General view of the muffler with a cutout.

The engine exhaust silencer comprises a housing 1 (for example, cylindrical); inlet pipe 2; output pipe 3; an active partition 4 located near the inlet pipe and having the shape of a ring; a rod 7 located in the housing 1 along its longitudinal axis; a nozzle-blower 5, located at the beginning of the rod 7 and representing a conical nozzle 8, passing into the perforated cylinder 9, on which the injection holes 10 are squeezed out, directing the gas stream tangentially to the cylinder body 9, the end of the nozzle 5 is muffled; screw 6, located on the rod, consisting of circles welded together (for example, sheet steel). The screw 6 is fixed relative to the housing 1.

ICE exhaust silencer operates as follows. During the operation of the car engine, the exhaust gases first enter the resonator, where the fire flame and the initial sound (sound wave) are extinguished. Then the exhaust gas enters the inlet pipe 2, where on its way it encounters an active partition 4, which creates the initial turbulence of the gas and the sound wave. After that, the gas flow is divided into two parts, one of which enters the nozzle-blower 5. This part of the gas stream that fell into the nozzle-blower 5 is significantly accelerated, passing through the nozzle of the nozzle 8 and, dividing into numerous parts, leaves under pressure through the directed directional holes 10 (nozzles), creating anti-movement of the other part of the gas, i.e. sound wave cancellation occurs. Another part of the gas stream and the sound wave, continuing to move inside the cylindrical body 1, swirls along the screw 6, creating a rotational movement of the gas. Due to this, the gas flow does not encounter significant barriers in its path, i.e. resistance to exhaust gases is reduced.

Then the exhaust gas and the canceled sound wave go out through the exhaust pipe 3.

The auger with nozzle and active partition create a specific movement (anti-movement) of the gas stream and the sound wave, as a result of which the sound wave is suppressed, the resistance to the exhaust gases of the engine is significantly reduced, it follows that the engine efficiency increases, the fuel consumption decreases, in general, the production of this silencers are more economical due to the use of sheet steel for the manufacture of its elements.

Claims (4)

1. A silencer of the exhaust exhaust of an internal combustion engine, comprising a housing, an inlet and an outlet pipe, a vertical partition with an opening mounted near the inlet pipe, at least two swirlers and a supercharger, characterized in that a rod is mounted along the axis of the housing, on which one of swirlers, made in the form of a screw, and a supercharger located at the beginning of the rod, is made in the form of a nozzle representing a cone-shaped nozzle passing into a perforated cylinder with a plug at the end. 2. The silencer of the exhaust exhaust of an internal combustion engine according to claim 1, characterized in that the auger, consisting of interconnected circles, is fixed relative to the housing. 3. The silencer of the exhaust exhaust of an internal combustion engine according to claim 1, characterized in that the nozzle openings are extruded at the same angle to the cylinder surface. 4. The silencer of the exhaust exhaust of an internal combustion engine according to claim 1, characterized in that the vertical partition is made in the form of a ring creating an initial swirl of exhaust gases.