SU1257254A1 - Exhaust silencer for internal combustion engine - Google Patents

Abstract

The invention is intended to silence noise, and an internal combustion engine. The aim of the invention is to improve the effectiveness of the silencer. The outlet chamber is made up of two volumes formed from two identical parts of a variable profile and connected by means of an overflow pipe with tangential slots 7 made on the surfaces of the chambers clockwise and counterclockwise. Pulsating the exhaust gas flow through the inlet pipe 2 enters the inlet chamber 4, then through the slots 7 - into the exhaust chamber 6, and through the gap between the housing 1 and the wall of the chamber 6 - into the intermediate chamber 5. The gas flows interact with each other and form zones increased static pressure, providing OTSC :: gases along the silencer axis and their expansion. 1 hp f-ly, 4 ill. g Figure 1 8

Description

The invention relates to mechanical engineering, in particular to engine construction, namely, to silencers of the noise of an internal combustion engine. The purpose of the invention is to increase the efficiency of the silencer.

In Fig.1 schematically presents the proposed muffler, a longitudinal section; in fig. 2 is a section A-A in FIG. on fig.Z - section in figure 1; figure 4 - detail of the exhaust chamber, axonometrics.

The silencer comprises a housing 1 with an inlet 2 and an outlet 3 nozzles, an inlet 4 and an intermediate chamber 5, and an exhaust chamber 6 provided with tangential slots 7 and a connection section 8 with the outlet nozzle 3. The exhaust chamber 6 is made up of at least two volumes formed by a cone 9, installed from the side, and apex of the inlet pipe 2 and three truncated cones 10 connected to each other by large bases, and connected by means of the bypass pipe 1 1 to smaller bases, and tangential slots 7 in Filled on the surfaces of the cones 9 and 10 in a clockwise and counterclockwise direction, starting from the BnycKjjoro side of the pipe 2, and section 8 of the connection with the exhaust pipe 3 is made in the form of a truncated cone 12, conjugated with a large base with the body 1 camera 6. The last of the two identical children JJ III III (fig. 4) of the variable profile, with

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starting from the side of the inlet pipe, and the connection with the outlet pipe is made in the form of a truncated cone, connected with a large base with the housing and connected with a base with an exhaust chamber.

The protection of which produces an outlet-40 P ° arrow, respectively, on the chamber 6 with the connection section 8 with the outlet nozzle 3 and the longitudinal partition 14 placed on the axis of the housing and dividing the intermediate chamber 5 into two parts. The outlet chamber 6 of the chamber 6 can be made in the form of rotation bodies in the form of a sphere, a pseudosphere, etc.

. The muffler works as follows.

The pulsating flow of exhaust gases through the inlet pipe 2 enters the inlet chamber 4, where the expansion of gases and partial smoothing of the pulsations. From the chamber 4, a part of the gas through the tangential slots 7 enters the p exhaust chamber 6,

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2, a silencer according to n. L, characterized in that, in order to improve the manufacturability of the design, the exhaust chamber is made of two identical parts of a variable profile with the formation of a longitudinal recess placed on the axis of the casing and dividing the intermediate chamber into two parts.

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and the other part through the gap between, the housing 1 and the walls of the outlet chamber 6 - into the intermediate chamber 5, where

there is an additional reduction of 5 sound vibrations. The gas flows coming from the intermediate chamber 5 through the tengenic slots are twisted sequentially clockwise or counterclockwise, moving towards each other to the expansion zones of the exhaust chamber 6, where they interact and form a zone of static static pressure, ensuring the suction of the gas along the axis of the oxygen source 15 liters through the connection area 8 of the outlet chamber 6, where the gas expands into the outlet 3.

Claims (1)

1. A silencer for an internal combustion engine, comprising a housing with inlet and exhaust connections, an intake and intermediate chambers, an exhaust chamber provided with tangential slots and a connection section with the intake connection pipe, the fact that, in order to increase efficiency, the discharge chamber is made in the form of at least two volumes formed by a cone mounted from the side and apex to the inlet pipe, and three truncated cones mated to each other with large bases with smaller bases, the tangential slots being made on the surfaces of the cones in a clockwise direction and starting from the side of the inlet pipe, and the connection with the outlet pipe is made in the form of a truncated cone, connected with a large base with the housing and connected with a base with an exhaust chamber. Р ° owl arrows, respectively 2, Muffler according to n.l, characterized in that, in order to improve the manufacturability of the design, the exhaust chamber is made of two identical parts of a variable profile with the formation of a longitudinal partition placed on the axis of the body and dividing the intermediate chamber into two parts. /) - / 13 Fy