CN2441981Y

CN2441981Y - Engine silencer with silencing material on pipe wall

Info

Publication number: CN2441981Y
Application number: CN 00245726
Authority: CN
Inventors: 毛毳
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-04
Filing date: 2000-08-04
Publication date: 2001-08-08
Anticipated expiration: 2010-08-04

Abstract

The utility model relates to an engine silencer with silencing materials on pipe walls, which comprises an outer shell, an air inlet pipe, an air exhaust pipe, a separating plate, a metal net cloth, a front and a back end covers, wherein the air inlet pipe, the air exhaust pipe and an air guide pipe are arranged in the outer shell of the utility model. The outer shell is divided into a plurality of radiating sound chambers and/or resonance sound chambers by the front and the back end covers and a plurality of separating plates. Silencing materials are arranged on hole positions of the pipe walls of the air inlet pipe and/or the air exhaust pipe and/or the air guide pipe. Packing pipes are arranged on the external side of the silencing materials. The utility model can effectively reduce engine noises. The utility model has the advantages of simple structure, good silencing effect and specification seriation. The utility model can be suitable for being used by engines of various types.

Description

The muffler for motor of tube wall dress quieter material

The utility model relates to the muffler for motor that a kind of tube wall that connects with the motor engine exhaust gas pipe is equipped with quieter material.

At present, the silencing apparatus that is used for motor car engine reduction noise mainly is made of oblate type shell, air inlet and exhaust piper, forward and backward end cap, dividing plate etc., and the air inlet and exhaust piper, the air pipe tube wall that are provided with in its shell do not add quieter material, and erasure effect is undesirable.

It is a kind of simple in structure that the purpose of this utility model is to provide, and the tube wall that can reduce engine noise effectively is equipped with the muffler for motor of quieter material.

The purpose of this utility model is achieved in that a kind of muffler for motor of tube wall dress quieter material, comprise shell, air inlet and exhaust piper, forward and backward end cap, dividing plate, metal screen cloth, be provided with air inlet and exhaust piper, air pipe in its shell, forward and backward end cap and polylith dividing plate will be divided into several sound-radiation chamber and/or resonance sound chamber in the shell, it is characterized in that suction tude and/or outlet pipe and/or the porose position of air pipe tube wall are provided with quieter material, quieter material is outside equipped with to be assured;

The muffler for motor of described tube wall dress quieter material is characterized in that all wrapping up or be set with quieter material on suction tude and outlet pipe and the porose position of air pipe tube wall, and the quieter material outside weld is connected to be assured;

The muffler for motor of described tube wall dress quieter material is characterized in that wrapping up or be set with quieter material separately on suction tude or outlet pipe or the porose position of air pipe tube wall, and the quieter material outside weld is connected to be assured;

The muffler for motor of described tube wall dress quieter material is characterized in that wrapping up on suction tude and the porose position of outlet pipe tube wall or being set with quieter material, and the quieter material outside weld is connected to be assured;

The muffler for motor of described tube wall dress quieter material is characterized in that wrapping up on suction tude and the porose position of air pipe tube wall or being set with quieter material, and the quieter material outside weld is connected to be assured;

The muffler for motor of described tube wall dress quieter material is characterized in that wrapping up on outlet pipe and the porose position of air pipe tube wall or being set with quieter material, and the quieter material outside weld is connected to be assured.

The utility model has improved the available engine muffler structure, suction tude, outlet pipe, the porose position of air pipe tube wall are provided with quieter material, can reduce engine noise effectively, compare with existing silencing apparatus and can reduce noise 4～8%, the utility model is simple in structure, good muffling effect, specification seriesization, the motor car engine that can be suitable for various models is installed and used.

Description of drawings

Fig. 1 is the plan view of the utility model structural representation;

Fig. 2 is an A-A view among Fig. 1;

Fig. 3 is the structural representation of assuring of the present utility model;

Fig. 4 is a B-B view among Fig. 3;

Fig. 5 is the plan view of the utility model example structure schematic representation;

Fig. 6 is a C-C view among Fig. 5.

The utility model is described in further detail below in conjunction with drawings and Examples:

Consult Fig. 1, shown in Figure 2, the muffler for motor of tube wall dress quieter material, be provided with suction tude 1 in the shell 3 of its oblate type, outlet pipe 9, air pipe 7 and dividing plate 4 or metal screen cloth, can be provided with porous on suction tude 1 and outlet pipe 9 tube walls, before, rear end cover 2,6 can be with shell 3 welding or with shell 3 global formations, shell 3 inner route clapboards 4 are divided into sound-radiation chamber and/or resonance sound chamber 5, the combustion-gas flow of motor reduces noise from outlet pipe 9 discharges through sound-radiation chamber and/or resonance sound chamber 5 circulation backs, improvement structure of the present utility model is that suction tude 1 and/or outlet pipe 9 and/or the porose position of air pipe 7 tube walls are provided with quieter material 10, quieter material 10 is outside equipped with assures 8, adopt the welding fixed connection, double dot dash line is represented all to wrap up or be set with quieter material on described suction tude and outlet pipe and three porose positions of tube wall of air pipe among the figure, and the quieter material outside weld is connected to be assured; Every tube wall of suction tude or outlet pipe or air pipe wraps up or is set with quieter material separately on the porose position, and the quieter material outside weld is connected to be assured; On two porose positions of tube wall of suction tude and outlet pipe the parcel or be set with quieter material, the quieter material outside weld is connected to be assured; On two porose positions of tube wall of suction tude and air pipe the parcel or be set with quieter material, the quieter material outside weld is connected to be assured; On two porose positions of tube wall of outlet pipe and air pipe the parcel or be set with quieter material, the quieter material outside weld is connected to be assured; Be quieter material 10 and assure 8 and can be arranged on above-mentioned each root pipe simultaneously or be separately positioned on wherein a pipe or wherein on two porose positions of tube wall, assure 8 two ends and aforementioned tube welded connection; Can reach the purpose of the combustion noise that reduces motor.Quieter material 10 of the present utility model can select for use good, the resistant to elevated temperatures ceramic fiber cotton of sound absorption qualities, glass fibre cotton, aluminosilicate fiber cotton, asbestos slate, screen cloth etc. to be made into cotton-shaped and/or tubulose, can be the stratiform structure of single or multiple lift.

Consult Fig. 3, shown in Figure 4, its quieter material 10 and assure 8 and can wrap up or be sleeved on suction tude 1, outlet pipe, the porose position of air pipe tube wall is assured 8 two ends and aforementioned tube welded connection.

Consult Fig. 5, shown in Figure 6, the utility model can combine with I " muffler for motor of end cap dress quieter material " of application, on suction tude and/or outlet pipe and/or the porose position of air pipe tube wall, quieter material is housed and assure in quieter material is equipped with also front cover and/or rear end cover, promptly be provided with quieter material 10 at the front cover 2 at shell 3 two ends and/or the inner side surface of rear end cover 6, the inner side surface of end cap before or after by the pressing plates 11 that have number perforation quieter material 10 being pressed on, and connect with shell 3 welding or screw, erasure effect will be better.

The number of the utility model air inlet and exhaust piper, air pipe and the position is set; the number of forward and backward end cap and dividing plate and sound-radiation chamber and/or resonance sound chamber and setting; can design according to the different model motor car engine; be existing silencing apparatus technology; be not restricted to the described embodiments; the utility model is intended to the muffler for motor of protective tube wall quieter material, can produce the muffler for motor of the tube wall dress quieter material of different size seriation according to available engine silencing apparatus model.

Claims

1, a kind of muffler for motor of tube wall dress quieter material, comprise shell, air inlet and exhaust piper, forward and backward end cap, dividing plate, metal screen cloth, be provided with air inlet and exhaust piper, air pipe in its shell, forward and backward end cap and polylith dividing plate will be divided into several sound-radiation chamber and/or resonance sound chamber in the shell, the porose position of tube wall that it is characterized in that suction tude (1), outlet pipe (9), at least one pipe of air pipe (7) is provided with quieter material (10), and quieter material (10) is outside equipped with assures (8).