SU928046A2

SU928046A2 - Exhaust noise silencer

Info

Publication number: SU928046A2
Application number: SU802979867A
Authority: SU
Inventors: Евгений Степанович Стайченко; Валерий Гаврилович Трухан; Валерий Николаевич Кохович
Priority date: 1980-09-04
Filing date: 1980-09-04
Publication date: 1982-05-15

Description

(5) ГЛУШИТЕЛЬ ШУМА ВЫХЛОПА(5) EXHAUST NOISE SILENT

II

Изобретение относч тс к устройствам дл глушени шума выхлопа и. выпуска сжатых газов и Может быть использовано в двигател х внутреннего сгорани , в пневмонагнетательных установках, предназначенных дл транспортировани строительных растворов , и других устройствах подобного назначени .The invention relates to devices for silencing exhaust noise and. release of compressed gases; and Can be used in internal combustion engines, in pneumatic injection installations for transporting mortars, and other devices of similar designation.

По основному авт. св. № 723196 известен глушитель шума выхлопа дл двигател внутреннего сгорани , содержащий выходную трубу, ра.зветвленную на конце на два участка, изогнутых в виде тора,, имеющего щель дл выхода газов, заключенную в кольцевой отражатель, выполненный в виде двух усеченных конусов, большие основани которых сопр жены между собой, амалые расположены вокруг концов тора и образуют кольцевые зазоры дл выхода газов.According to the main author. St. No. 723196 is an exhaust silencer for an internal combustion engine comprising an outlet pipe branched at the end into two sections curved in the shape of a torus, having a slit for the exit of gases enclosed in an annular reflector made in the form of two truncated cones, large bases which are mated with each other, amalie located around the ends of the torus and form annular gaps for the exit of gases.

Однако этот глушитель шума ха .актеризуетс недостаточно высокойHowever, this silencer is not sufficiently high.

эффективностью глушени вследствие наличи в нем только одной буферной зоны.killing efficiency due to the presence of only one buffer zone.

Цель изобретени - повьциение эффективности глушени . Указанна цель достигаетс тем, что внутри отражател , соосно с ним, на концевых участках тора размещены две отражательные пластины в виде усеченных сегментов сферичёс ких оболочек и дефлектор, образующий с концами тора радиальные кольцеаые зазоры дл выхода газов, составленных из двух усеченных сегментов сферических оболочек и образующий The purpose of the invention is to demonstrate the effectiveness of jamming. This goal is achieved by the fact that inside the reflector, coaxially with it, at the end sections of the torus are placed two reflective plates in the form of truncated segments of spherical shells and a deflector that forms radial annular gaps with the ends of the torus to release gases composed of two truncated segments of spherical shells and forming

IS с отражательными пластинами кольцевые каналы, расшир ющиес в сторону охватывающего их кольцевого отражател .IS with reflective plates annular channels, expanding toward the annular reflector surrounding them.

Claims

A layer of sound-absorbing material is placed on the inner surface of the annular reflector, as which heat-resistant plastic can be used. 3 A protective ring is installed on the layer of sound-absorbing material of the annular reflector. A protective silencer is shown in the drawing. The flange 2 serves to fasten the outlet pipe 1 to the pipeline or machine body. The outlet pipe 1 is branched into two sections, curved into the shape of a torus 3, having a slit A for the gases to escape. The slot A is enclosed in an annular reflector 4, made in the form of two truncated cones, the large bases of which are adjacent to each other, and the small ones are located around the ends 5 and 6 of torus 3 and form annular gaps h. Inside the annular reflector k, coaxially with it at the ends 5 and 6 of the torus 3 are fixed two reflective plates 7 and 8 in the form of truncated segments of spherical shells and a deflector 9, forming annular gaps Y with the torus ends for the gases to exit. The deflector 9 ci is arranged from two truncated segments of the spherical shells, and the plates 7 and 8 form an axial gap B, while the surfaces of the reflective plates 7 and 8 form with the surface of the deflector 9 channels 10 and 11 extending into the cavity of their circular reflector 4. In justified cases, taking into account exhaust power and muffler size, to simplify con. Structures, reflective plates 7 and 8 and the deflector 9 can be made in the form of truncated cones. A layer 12 of sound-absorbing material, such as heat-resistant plastic, is fixed on the annular reflector 4, on its inner surface, and, opposite the gap 13, a protective ring 13 with conical surfaces is fastened. The diesel engine 9 is fixed to the ring 7 by means of gussets 1 and 15, and the ring reflector 4 is attached to the torus 3 by the bracket 16 with bolts 17. The noise muffler works as follows. The released gases through the outlet pipe 1 enter the torus 3, where they are divided into two streams, exit from the ends 5 and 6 into slot A, towards each other Deflector 9, closing slot A s64, together with the radial clearances, a buffer chamber, from where gases flow into the expansion chamber the channels 10 and 11 and, through the axial gap B, formed by the plates 7 and 8, into the cavity of the annular reflector 4, fall onto the protective ring 13 and the layer 12 of sound-absorbing material. Outward gases are released through a radial gap P. An installation inside an annular reflector, coaxial with it, reflective plates and a deflector, assembled from elements of spherical shells that form gaps, channels and buffer zones, increases the efficiency of damping noise. Claims of the invention 1. Exhaust noise silencer according to ed. St. No. 723196, characterized in that, in order to increase the efficiency of damping, inside the reflector, coaxially with it, at the end sections of the torus there are two reflective plates in the form of truncated segments of spherical shells and a deflector forming radial annular gaps with the ends of the torus for the exit of gases, composed of two truncated segments of spherical shells and forming annular channels with reflective plates that expand towards the annular reflector surrounding them.

2. The muffler according to claim 1, about tl, which is due to the fact that a layer of sound-absorbing material is placed on the inner surface of the annular reflector.

3. The silencer in accordance with claim 2, about tl, which is due to the fact that heat-resistant plastic is used as a sound-absorbing material. k. Silencer on PP. 2 and 3, in that a protective ring is installed on the layer of sound-absorbing material of the annular reflector at its center. Sources of information taken into account in the examination 1. USSR author's certificate ff 732196, cl. F 01 N 7/00, 1979.