RU52610U1 - SILENCER OF THE EXHAUST GAS SYSTEM - Google Patents

Abstract

The goal is to simplify the design, reduce the complexity and cost of manufacturing while ensuring the noise level of the car that meets international standards. This is achieved in that in the muffler, divided into two chambers, inlet 2 and outlet 3, containing one perforated pipe 7, the volume of the inlet chamber is 0.7-0.9 of the volume of the exhaust chamber, the total area of perforations in the area of the exhaust chamber is 1.7 -2.2 times the total area of perforations in the intake chamber.

Description

The inventive utility model relates to the field of engine manufacturing and can be used in exhaust systems of internal combustion engines of vehicles.

Known muffler exhaust system containing a housing with front and rear walls, transverse partitions dividing the housing into chambers, coaxial inlet and outlet perforated pipes, [1].

The disadvantage of this design is the complexity and high cost.

The technical result achieved by this structural embodiment is to simplify the design, which reduces the complexity and cost of manufacture while ensuring the noise level of the car that meets international standards.

The specified result is achieved in that the silencer housing contains two chambers and one perforated pipe passing through them, while the volume of the chamber, which is the first in the direction of exhaust gas flow, is 0.7-0.9 of the volume of the second chamber, the total area of perforations per the second chamber section is 1.7-2.2 times larger than the total perforation area in the first chamber section.

The inventive structural embodiment is illustrated in the drawing, where:

Figure 1 is a longitudinal section of a muffler;

Figure 2 is a side view of the muffler.

The silencer of the exhaust system contains an oval section housing 1, in which two chambers are made: inlet 2, exhaust 3, formed respectively by two end walls 4, 5 and a partition 6, a perforated pipe 7 passing through the silencer.

When the engine is running, the exhaust gases enter the perforated pipe 7 and through the perforation enter the chambers 2 and 3.

As a result of the passage of exhaust gases through the perforated pipe and chambers 2 and 3, where they expand, the noise level at the outlet of the muffler is reduced. In an embodiment of the chamber, which is the first in the direction of the exhaust gas flow, the volume of 0.7-0.9 from

volume of the second chamber, and perforations, the total area of which in the section of the second chamber is 1.7-2.2 times larger than the total area of perforations in the section of the first chamber, the fluctuations in the exhaust gas flow in the exhaust system do not reach resonant values, thereby reducing the noise level a car.

The tests carried out at GAZ confirmed the high efficiency of the proposed design.

Sources of information taken into account when preparing the application:

1. Utility model of the Russian Federation No. 26595, class. F 01 N 1/00, 2002 - prototype.

Claims (3)

1. A silencer of the exhaust system, comprising a housing with front and rear walls, transverse partitions dividing the housing into chambers, coaxial inlet and outlet perforated nozzles, characterized in that the silencer housing comprises two chambers and one perforated pipe passing through them. 2. The muffler according to claim 1, characterized in that the volume of the chamber, which is the first in the direction of exhaust gas flow, is 0.7-0.9 from the volume of the second chamber. 3. The silencer according to claim 1, characterized in that the total area of perforations in the area of the second chamber is 1.7-2.2 times larger than the total area of perforations in the area of the first chamber.