CN201865738U

CN201865738U - Tube-shell common type exhaust manifold device

Info

Publication number: CN201865738U
Application number: CN2010206393355U
Authority: CN
Inventors: 卜范滨; 王书来; 张守泉; 韩学; 栾浩; 李明扬; 王岩杰
Original assignee: HARBIN AIRUI ENVIRONMENTAL TECHNOLOGIES Co Ltd
Current assignee: HARBIN AIRUI ENVIRONMENTAL TECHNOLOGIES Co Ltd
Priority date: 2010-12-02
Filing date: 2010-12-02
Publication date: 2011-06-15
Anticipated expiration: 2020-12-02

Abstract

The utility model relates to an exhaust manifold device. An upper shell and a lower shell are installed and fixed to form three chambers and four air inlet pipes; one end of each air inlet pipe is arranged on a flange; the other end of each air inlet pipe is arranged in the first chamber; the extension lines of the central lines of the four air inlet pipes are gathered at a central point in the first chamber; an oxygen sensor nut is arranged on an upper shell by the central point; the second chamber is internally provided with a catalyst which is enswathed by a liner; the transitional sections of the first chamber and the second chamber can be covered on the front end of the catalyst by steel wools; the second chamber is externally provided with an upper heat-insulating cover and a lower heat-insulating cover, a chamber is formed by the upper shell and the lower shell, and the upper heat-insulating cover, the lower heat-insulating cover and the chamber are internally provided with heat-insulating cottons respectively; a flange is directly arranged at the port of the third chamber; the flange is arranged on the working surface of the air inlet pipe; a first welding bracket is arranged at one side of the first chamber in which the four air inlet pipes are gathered; a second welding bracket is arranged on the oxygen sensor nut of the first air inlet pipe near the first chamber; and a third welding bracket is arranged on the oxygen sensor nut at the central position of a fourth air inlet pipe. The exhaust manifold device has the advantages of effectively reducing the emission pollution of an automobile.

Description

Shell coenosarc formula exhaust manifold device

Technical field

The utility model relates to a kind of automobile exhaust manifolding, especially relates to a kind of shell coenosarc formula exhaust manifold device.

Background technique

At present, vehicle exhaust is serious day by day to the harm of environment, and in environmental consciousness surging today, the control exhaust emission pollution is very urgent.Present existing gas exhaust manifold structure generally is divided into close coupled type and non-close coupled type, and with regard to its principle, close coupled type more can improve engine power, reduces exhaust emission, progressively becomes the main flow in market.Its structure generally comprises suction tude, catalyst converter, steam outlet pipe etc.The close coupled type gas exhaust manifold is mainly considered the initiation temperature of ternary catalyzing unit, oxidation, reducing capacity and spatial structure, but there is certain problem in the rationality of the structure of himself.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that exists in the above-mentioned technology, provides a kind of simple in structure, reasonable in design, and cost reduces, and can reduce exhaust emission effectively, improves the shell coenosarc formula exhaust manifold device of engine power.

In order to achieve the above object, the technical solution adopted in the utility model is: upper shell and lower shell body install and fix the back and form first chamber, second chamber and the 3rd chamber, four suction tude are respectively first suction tude, second suction tude, the 3rd suction tude, the 4th suction tude, one end of four suction tude is installed in respectively on the big flange plate, the center line elongation line that the other end comes together in four suction tude of first chamber converges at a central point in first chamber, by this central point the lambda sensor nut is installed on upper shell, catalyzer by the liner wrapping is installed in second chamber, excessive section of first chamber and second chamber, cover front end by Steel Wool at catalyzer, second chamber is installed thermal shield and following thermal shield outward, at last thermal shield and upper shell, in the chamber that following thermal shield and lower shell body form heat insulation foam is installed respectively, the 3rd chamber port is directly installed small flange plate, be installed on the working surface of tracheae at big flange plate, come together in the opposite side of first chamber with four suction tude first welding support is installed, near the lambda sensor nut of first chamber second welding support is installed in first suction tude, the 3rd welding support is installed at the lambda sensor nut in the 4th suction tude neutral position.

The utility model has the advantages that:

1, simple in structure, compact, reasonable in design, can reduce vehicle emission pollution effectively;

2, the utility model has not only reduced cost, has improved efficient, has also improved the power character and the Economy of motor.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is that the A of Fig. 1 is to schematic representation;

Fig. 4 is the utility model structural representation A-A view;

Fig. 5 is the utility model structural representation B-B view;

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Fig. 5 as can be known, the utility model upper shell 16 installs and fixes the back with lower shell body 15 and forms first chamber 20, second chamber 21 and the 3rd chamber 22, four suction tude are respectively first suction tude 3, second suction tude 4, the 3rd suction tude 9, the 4th suction tude 10, one end of four suction tude is installed in respectively on the big flange plate 2, the center line elongation line that the other end comes together in 20 4 suction tude of first chamber converges at a central point in first chamber 20, by this central point lambda sensor nut 6 is installed on upper shell 16, catalyzer 18 by liner 17 wrappings is installed in second chamber 21, in first chamber 20 and second chamber, 21 excessive sections, cover front end by Steel Wool 19 at catalyzer 18, second chamber, 21 outer thermal shield 12 and the following thermal shields 13 installed, at last thermal shield 12 and upper shell 16, in the chamber that following thermal shield 13 and lower shell body 15 form heat insulation foam 14 is installed respectively, the 3rd chamber 22 ports are directly installed small flange plate 11, be installed on the working surface of tracheae at big flange plate 2, come together in the opposite side of first chamber 20 with four suction tude first welding support 1 is installed, near the lambda sensor nut 6 of first chamber 20 second welding support 5 is installed in first suction tude 3, the 3rd welding support 8 is installed at the lambda sensor nut 6 in the 4th suction tude 10 neutral positions.

Big flange plate 2, the first suction tude 3 of the utility model, second suction tude 4, the 3rd suction tude 9, the 4th suction tude 10, upper and

lower casing

16,15, small flange plate 11.Described first suction tude 3, second suction tude 4, the 3rd suction tude 9, the 4th suction tude 10 adopt the intake duct of tubing as gas exhaust manifold, and exhaust back pressure is lower under the high rotating speed of motor, improves the power character of motor; Upper and

lower casing

16,15 is fixed with lower shell body 15 welding by upper shell 16 and is formed three chambers, be respectively first chamber 20, second chamber 21, the 3rd chamber 22, this structure realizes two parts of three chambers, 20,21,22 usefulness, also reduced development cost when reducing number of spare parts, and air inlet compiled be transferred to catalyzer 18 these processes then and be incorporated in one first chamber 20 and realize, shortened the action radius of waste gas to catalyzer 18; First chamber 20 is used to collect the gas of combustion that four suction tude 3,4,9,10 are discharged respectively, and by the lambda sensor 7 that is installed on the lambda sensor nut 6 the mixture combustion result is passed to automatical control system; Second chamber, 21 encapsulated catalysts 18, because it is very near that discharging waste gas directly arrives second chamber, 21 roads by the suction tude and first chamber 20, so the exhaust gas temperature loss is less, can directly reach catalyzer 18 initiation temperatures, light catalyzer 18 and carry out oxidation-reduction reaction, shorten or the cancellation warming up time, improve the Economy of motor, at catalyzer 18 inlet ends Steel Wool 19 is installed, can prevents effectively that high-temp waste gas is to the corrosion of catalyzer 18 end face wedge angles and can prevent the collision of end face wedge angle and housing; Follow-up muffler system is collected and be transferred to the 3rd chamber 22 with reacted innocuous gas, because the 3rd chamber 22 directly is connected with small flange plate 11, compact structure is saved cost, and the vehicle limited for the space has practicability.

Claims

1. shell coenosarc formula exhaust manifold device, comprise upper shell (16) and lower shell body (15), it is characterized in that: upper shell (16) installs and fixes the back with lower shell body (15) and forms first chamber (20), second chamber (21) and the 3rd chamber (22), four suction tude are respectively first suction tude (3), second suction tude (4), the 3rd suction tude (9), the 4th suction tude (10), one end of four suction tude is installed in respectively on the big flange plate (2), the center line elongation line that the other end comes together in (20) four suction tude of first chamber converges at a central point in first chamber (20), go up installation lambda sensor nut (6) by this central point at upper shell (16), catalyzer (18) by liner (17) wrapping is installed in second chamber (21), in the excessive section of first chamber (20) and second chamber (21), cover front end by Steel Wool (19) in catalyzer (18), outer thermal shield (12) and the following thermal shield (13) installed of second chamber (21), at last thermal shield (12) and upper shell (16), in the chamber that following thermal shield (13) and lower shell body (15) form heat insulation foam (14) is installed respectively, the 3rd chamber (22) port is directly installed small flange plate (11), be installed on the working surface of tracheae at big flange plate (2), come together in the opposite side of first chamber (20) with four suction tude first welding support (1) is installed, near the lambda sensor nut (6) of first chamber (20) second welding support (5) is installed in first suction tude (3), the 3rd welding support (8) is installed at the lambda sensor nut (6) in the 4th suction tude (10) neutral position.