RU1800075C - Exhaust silencer - Google Patents

Abstract

SUMMARY OF THE INVENTION: an exhaust silencer comprises a housing 1 with front 2 and rear 3 end walls, an inlet pipe 4 with a perforated section 5 and a confuser 6 located in the perforation zone, partitions 7 and 8, of which the first is deaf, the second is perforated, dividing the housing 1 to the inlet 9, outlet 10 and intermediate 11 of the chamber, as well as the outlet pipe 12, the inlet slice of which is bifurcated, the components of which are placed in the partition 8 symmetrically with respect to the axis of the housing 1, in which the outlet cut inlet pipe 4. 2 ill.

Description

The invention relates to automobile transport, in particular to silencers of exhaust gases of an internal combustion engine. ..

The aim of the invention is to increase the noise absorption efficiency.

Figure 1 shows a longitudinal section of a silencer. Exhaust; figure 2 is a section aa in figure 1.

The exhaust silencer comprises a housing 1 with front 2 and rear 3 end walls, an inlet pipe 4 s, a perforated section 5 and a confuser 6 located in the perforation zone, partitions 7 and 8, of which the first is deaf, the second is perforated, dividing the housing 1 into inlet 9, exhaust 10 and intermediate 11 of the chamber, as well as the exhaust pipe 12,. the inlet section of which is placed in the partition 8 symmetrically with respect to the axis of the housing 1, in which the inlet section of the outlet pipe 4 is also located.

The exhaust silencer operates as follows.

The exhaust gas flow from the engine through the inlet section of the inlet pipe 4 enters into its perforated zone 5. The resistance meets in the form of a confuser 6, part of the gas stream through the perforation holes located up to the confuser 6 enters the inlet chamber 9, the rest of the gas stream through the confuser b, it follows further along the channel of the nozzle 4. As a result of the discharge created behind the confuser in the nozzle 4, the gas flow from the chamber 9 passes through the perforation holes located behind the confuser 6 into the cavity n the branch pipe 4 and follows it to the intermediate chamber 11, from where the weakened gas stream, having circled the bifurcated inlet section of the outlet pipe 12, returns in the opposite direction through the holes of the perforation of the partition 8 to the outlet chamber 10, from where, turning again through 180 °, it flows into the bifurcated the inlet section of the exhaust pipe 12 and further, connected, should be in the atmosphere.

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As a result of the discharge created in the outlet pipe 12 in the zone of the connection of its components, the remaining gas in the intermediate chamber 11 is sucked into the outlet pipe 12 through the compensation openings and flows into the atmosphere with a common stream.

Claims (1)

SUMMARY OF THE INVENTION An exhaust silencer comprising a housing with end walls, coaxial inlet and outlet nozzles, a first and second perforated transverse partition dividing the housing into an intake, intermediate and exhaust chamber, the nozzles being partially placed in the housing, the intake nozzle in the inlet zone 0 the chamber is perforated, and the outlet pipe in the area of the intermediate chamber is made with compensation holes, characterized in that, in order to increase the noise absorption efficiency, the inlet section of the outlet pipe is bifurcated, its components are placed symmetrically with respect to the housing axis in the second partition , the outlet cut of the inlet pipe is placed in the intermediate chamber, a confuser is installed in the inlet pipe in the area of the inlet chamber, and the compensation openings of the outlet pipe are located and a compound portion of its constituent parts.