CN207348947U - A kind of automobile gas exhausting manifold branch - Google Patents

Abstract

It the utility model is related to automobile exhaust technical field,In particular a kind of automobile gas exhausting manifold branch,Including exhaust manifold,Exhaust manifold,First exhaust manifold,Second exhaust manifold,3rd exhaust manifold and catalytic converter,The left end of the exhaust manifold is equipped with lambda sensor,There is exhaust manifold respectively with what the exhaust manifold bottom was connected,First exhaust manifold,Second exhaust manifold and the 3rd exhaust manifold,The exhaust manifold,First exhaust manifold,Second exhaust manifold and,The bottom of 3rd exhaust manifold is provided with four hole flanges,And exhaust manifold,First exhaust manifold,Second exhaust manifold and the 3rd exhaust manifold and four hole flange joints are equipped with gasket,Four hole flange is equipped with flange locating piece,The exhaust manifold formed by the welding of sheet metal parts,First exhaust manifold,Second exhaust manifold and the 3rd exhaust manifold,It instead of the mode of more branch pipe welding assemblies,Weld seam is few,The high overall processing process of seal is more simple.

Description

A kind of automobile gas exhausting manifold branch

Technical field

Automobile exhaust technical field is the utility model is related to, is specially a kind of automobile gas exhausting manifold branch.

Background technology

Exhaust manifold, is connected with engine cylinder block, and the exhaust of each cylinder is put together importing exhaust main, is carried The pipeline of difference, the requirement to it are mainly to reduce exhaust resistance to the greatest extent, and avoid interfering with each other between each cylinder, and exhaust is undue Can produce and interfere with each other during concentration, between each cylinder, that is, when certain cylinder is vented, just encounter other cylinder alter come without emptying Exhaust gas, in this way, will increase the resistance of exhaust, and then reduces the output power of engine, solution is to make the row of each cylinder Gas separates as far as possible, per one branch of cylinder, or Liang Gangyige branches, and each branch is lengthened as far as possible and be independently molded to reduce Gas in different pipes influences each other.

In general, the work of exhaust manifold adjust it is more severe, for working under repeat state of temperature, heating temperature pole Uneven, surface also differs hundreds of degree with inner cavity, and the thermal stress repeated action of generation easily causes exhaust manifold heat fatigue cracking, Exhaust manifold is caused to destroy；Especially with the power increase of engine, gas exhaust temperature is higher and higher；To exhaust manifold Fire-resistant oxidation resistant performance requirement higher；And the transformation efficiency of some existing catalytic converters is low；Therefore, in solution Problem is stated, with a kind of automobile gas exhausting manifold branch.

Utility model content

The purpose of this utility model is to provide a kind of automobile gas exhausting manifold branch, to solve proposed in the above background technology ask Topic.

To achieve the above object, the utility model provides following technical solution：

A kind of automobile gas exhausting manifold branch, exhaust manifold, exhaust manifold, first exhaust manifold, second exhaust manifold, the 3rd exhaust Manifold and catalytic converter, the left end of the exhaust manifold are equipped with lambda sensor, point being connected with the exhaust manifold bottom There are not exhaust manifold, first exhaust manifold, second exhaust manifold and the 3rd exhaust manifold, the exhaust manifold, first exhaust discrimination Pipe, second exhaust manifold and, the bottom of the 3rd exhaust manifold is provided with four hole flanges, and exhaust manifold, first exhaust manifold, the Two exhaust manifolds and the 3rd exhaust manifold and four hole flange joints are equipped with gasket, and four hole flange is positioned equipped with flange Block, the left end of the right end connection converter inner cone of the exhaust manifold, and the right end of converter inner cone is connected to catalytic converter Left end, the outer surface of the catalytic converter, which is provided with, to be buckled, and the right end of the catalytic converter is cased with heat shield, it is described every Heat cover is internally provided with exhaust duct and first row air flue, and unicom exhaust manifold, and the end of the heat shield is provided with single-hole method It is blue.

Preferably, the volume of the exhaust duct of the exhaust manifold and first row air flue is equal.

Preferably, the heat shield is installed on the outer end of catalytic converter, and the table of heat shield by two groups of fixing bolts Face is coated with aluminium alloy.

Preferably, the exhaust manifold, first exhaust manifold, second exhaust manifold and the 3rd exhaust manifold are double-deck metal plate Golden structure, and be connected together by spot welding.

Preferably, the tube body of the exhaust manifold prolongs the outer ring welding of catalytic converter housing, and passes through converter inner cone Weld seam is outside housing.

Preferably, the exhaust manifold and the 3rd exhaust manifold equal length, and first exhaust manifold and second exhaust discrimination The equal length of pipe.

Compared with prior art, the beneficial effects of the utility model are：

1st, in the utility model, the exhaust manifold and the 3rd exhaust manifold equal length of setting, first exhaust manifold are passed through It is equal with second exhaust manifold length, be conducive to automobile gas exhausting manifold branch and alleviate thermal deformation.

2nd, in the utility model, the exhaust manifold, first exhaust manifold, the second exhaust manifold that are formed by the welding of sheet metal parts With the 3rd exhaust manifold, the mode of more branch pipe welding assemblies is instead of, weld seam is few, the high overall processing process of seal is more simple It is single.

3rd, in the utility model, by setting outer surface to apply the heat shield of aluminium alloy, good heat-insulated effect can be played Fruit.

4th, in the utility model, the exhaust manifold, first exhaust manifold, second exhaust manifold and the 3rd exhaust manifold are Double-deck sheet metal structural, leaves one layer of vacuum layer between double-layer tube wall, so as to prevent the diverging of heat, plays the work of heat-insulation and heat-preservation With.

Brief description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model polycrystalline substance schematic diagram；

Fig. 3 is the utility model single hole flange broken away view；

In figure：1- exhaust manifolds, 2- lambda sensors, 3- exhaust manifolds, 301- first exhaust manifolds, 302- second exhaust discriminations Pipe, the 3rd exhaust manifolds of 303-, 4- converters inner cone, tetra- hole flanges of 5-, 6- buckle, 7- single holes flange, 8- exhaust ducts, 801- One exhaust duct, 9- heat shields, 10- catalytic converters, 11- gaskets, 12- flange locating pieces.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：

A kind of automobile gas exhausting manifold branch, exhaust manifold 1, exhaust manifold 3, first exhaust manifold 301, second exhaust manifold 302, 3rd exhaust manifold 303 and catalytic converter 10, the left end of exhaust manifold 1 are equipped with lambda sensor 2, with 1 bottom phase of exhaust manifold Connection has exhaust manifold 3, first exhaust manifold 301,302 and the 3rd exhaust manifold 303 of second exhaust manifold respectively, is vented discrimination 303 equal length of pipe 3 and the 3rd exhaust manifold, and first exhaust manifold 301 and the equal length of second exhaust manifold 302, row Gas manifold 3, first exhaust manifold 301,302 and the 3rd exhaust manifold 303 of second exhaust manifold are double-deck sheet metal structural, and logical Cross spot welding to be connected together, exhaust manifold 3, first exhaust manifold 301,302 and the 3rd exhaust manifold 303 of second exhaust manifold are Double-deck sheet metal structural, leaves one layer of vacuum layer between double-layer tube wall, so as to prevent the diverging of heat, plays the work of heat-insulation and heat-preservation With exhaust manifold 3, first exhaust manifold 301, the bottom of 302 and the 3rd exhaust manifold 303 of second exhaust manifold are provided with four holes Flange 5, and exhaust manifold 3, first exhaust manifold 301,302 and the 3rd exhaust manifold 303 of second exhaust manifold and four hole flanges 5 Joint is equipped with gasket 11, and four hole flanges 5 are equipped with flange locating piece 12, the right end connection converter inner cone 4 of exhaust manifold 1 Left end, and the right end of converter inner cone 4 is connected to the left end of catalytic converter 10, the tube body of exhaust manifold 1 prolongs catalytic converter The outer ring welding of 10 housings, and by 4 weld seam of converter inner cone outside housing, the outer surface of catalytic converter 10, which is provided with, to be buckled 6, the right end of catalytic converter 10 is cased with heat shield 9, and heat shield 9 is installed on the outer of catalytic converter 10 by two groups of fixing bolts End, and the surface of heat shield 9 is coated with aluminium alloy, by setting outer surface to apply the heat shield 9 of aluminium alloy, can play good Good heat insulation, heat shield 9 are internally provided with exhaust duct 8 and first row air flue 801, the exhaust duct 8 and first of exhaust manifold 1 The volume of exhaust duct 801 is equal, and unicom exhaust manifold 1, and the end of heat shield 9 is provided with single hole flange 7, overall structure lifting Cylinder discharges the efficiency of exhaust gas, while saves assembly space.

Utility model works flow：In use, when exhaust system passes through four hole flanges 5 and engine cylinder body stationary phase Even, exhaust gas is discharged from engine, respectively enters exhaust manifold 3, first exhaust manifold 301,302 and the 3rd row of second exhaust manifold Gas manifold 303, then exhaust gas is collected enter back into exhaust manifold 1, and exhaust gas enters catalytic converter 10 by exhaust manifold 1, Exhaust gas reaches reaction temperature faster by catalytic converter 10, so that the carbon monoxide in exhaust gas, hydrocarbon etc. be had Evil gas discharge is fallen, and exhaust gas is discharged by exhaust duct 8 and first row air flue 801 again, can save assembly space.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of automobile gas exhausting manifold branch, exhaust manifold (1), exhaust manifold (3), first exhaust manifold (301), second exhaust manifold (302), the 3rd exhaust manifold (303) and catalytic converter (10), it is characterised in that：The left end of the exhaust manifold (1) is equipped with Lambda sensor (2), be connected with the exhaust manifold (1) bottom have respectively exhaust manifold (3), first exhaust manifold (301), Second exhaust manifold (302) and the 3rd exhaust manifold (303), the exhaust manifold (3), first exhaust manifold (301), second row Gas manifold (302) and, the bottom of the 3rd exhaust manifold (303) is provided with four hole flanges (5), and exhaust manifold (3), first exhaust Manifold (301), second exhaust manifold (302) and the 3rd exhaust manifold (303) are equipped with gasket with four hole flange (5) joints (11), four hole flange (5) is equipped with flange locating piece (12), the right end connection converter inner cone of the exhaust manifold (1) (4) left end, and the right end of converter inner cone (4) is connected to the left end of catalytic converter (10), the catalytic converter (10) Outer surface be provided with and buckle (6), the right end of the catalytic converter (10) is cased with heat shield (9), the heat shield (9) it is interior Portion is equipped with exhaust duct (8) and first row air flue (801), and unicom exhaust manifold (1), the end of the heat shield (9) are provided with Single hole flange (7).

A kind of 2. automobile gas exhausting manifold branch according to claim 1, it is characterised in that：The exhaust duct of the exhaust manifold (1) (8) and first row air flue (801) volume it is equal.

A kind of 3. automobile gas exhausting manifold branch according to claim 1, it is characterised in that：The heat shield (9) is consolidated by two groups Determine the outer end that bolt is installed on catalytic converter (10), and the surface of heat shield (9) is coated with aluminium alloy.

A kind of 4. automobile gas exhausting manifold branch according to claim 1, it is characterised in that：The exhaust manifold (3), first exhaust Manifold (301), second exhaust manifold (302) and the 3rd exhaust manifold (303) are double-deck sheet metal structural, and are connected by spot welding It is connected together.

A kind of 5. automobile gas exhausting manifold branch according to claim 1, it is characterised in that：The tube body of the exhaust manifold (1) prolongs The outer ring welding of catalytic converter (10) housing, and by converter inner cone (4) weld seam outside housing.

A kind of 6. automobile gas exhausting manifold branch according to claim 1, it is characterised in that：The exhaust manifold (3) and the 3rd row Gas manifold (303) equal length, and first exhaust manifold (301) and the equal length of second exhaust manifold (302).