CN210087463U

CN210087463U - Automobile exhaust manifold

Info

Publication number: CN210087463U
Application number: CN201920609401.5U
Authority: CN
Inventors: 赖强敏
Original assignee: NINGBO NEW HUATAI PLASTICS ELECTRIC APPLIANCE Co Ltd
Current assignee: NINGBO NEW HUATAI PLASTICS ELECTRIC APPLIANCE Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-02-18
Anticipated expiration: 2029-04-29

Abstract

The utility model relates to an automobile exhaust manifold, its characterized in that: including first branch pipe, second branch pipe, third branch pipe, fourth branch pipe and one side that arrange in proper order with first flange board, second flange board, third flange board, fourth flange board that first branch pipe, second branch pipe, third branch pipe, fourth branch pipe connect respectively, first air flue and first mounting hole have been seted up on first flange board, second flange board, third flange board, the fourth flange board respectively, the opposite side of first flange board, second flange board, third flange board, fourth flange board is connected with the buffer board, seted up on the buffer board with first air flue and first mounting hole correspond second air flue and second mounting hole. By adopting the design, the shaking of the exhaust manifold can be reduced, the looseness can be prevented, and the service life can be prolonged.

Description

Automobile exhaust manifold

Technical Field

The utility model relates to the field of automotive technology, concretely relates to automobile exhaust manifold.

Background

The exhaust manifold is connected with the cylinder body of the engine, concentrates the exhaust of each cylinder and guides into the exhaust manifold, there are branched pipelines, it is mainly to request it, reduce the exhaust resistance as much as possible, and avoid the mutual interference among cylinders, when the exhaust is too concentrated, the mutual interference will be produced among cylinders, namely when a certain cylinder exhausts, just touch the exhaust gas which is fleed by other cylinders and not exhausted, in this way, will increase the exhaust resistance, and then reduce the output power of the engine, the solution is, make the exhaust of each cylinder separate as much as possible, a branch of each cylinder, or a branch of two cylinders, and make each branch lengthen as much as possible and form independently in order to reduce the mutual influence of gas in different pipes.

Under the long-term use condition of the existing exhaust manifold, the exhaust manifold is easy to loosen due to the deformation of the exhaust manifold caused by the high temperature of an engine, the running vibration of an automobile and the like, and the normal operation of an exhaust system is influenced.

Accordingly, there is a need for an improved exhaust manifold for an automobile that addresses the deficiencies in the prior art discussed above.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an exhaust manifold for a vehicle having a function of preventing loosening.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an automotive exhaust manifold, characterized by: including first branch pipe, second branch pipe, third branch pipe, fourth branch pipe and one side that arrange in proper order with first flange board, second flange board, third flange board, fourth flange board that first branch pipe, second branch pipe, third branch pipe, fourth branch pipe connect respectively, first air flue and first mounting hole have been seted up on first flange board, second flange board, third flange board, the fourth flange board respectively, the opposite side of first flange board, second flange board, third flange board, fourth flange board is connected with the buffer board, seted up on the buffer board with first air flue and first mounting hole correspond second air flue and second mounting hole.

Furthermore, the first flange plate, the second flange plate, the third flange plate and the fourth flange plate are clamped and fixed with the buffer plate. The fixing mode is convenient to operate.

Further, first flange board, second flange board, third flange board, fourth flange board are equipped with the recess respectively all around, the groove cross-section is the trapezoidal that the tank bottom width is less than the notch width, be provided with first spacing step on the recess lateral wall, the shaping has on the buffer board with the sand grip that groove position corresponds, the cross-section of sand grip with groove cross-section phase-match and sand grip lateral wall be equipped with the spacing step of second of first spacing step joint. This design is very simple.

Furthermore, exhaust manifold still include with first branch pipe, second branch pipe, third branch pipe, fourth branch pipe one end collect the three way catalyst converter who connects, be equipped with first support on first flange board, second flange board, third flange board and the fourth flange board respectively, three way catalyst converter circumference is equipped with a plurality of second supports. By adopting the design, the flange plate and the three-way catalytic converter can be further fixed, and the shaking is prevented.

Furthermore, exhaust manifold still include with the bellows that three way catalyst converter corresponds the connection, the bellows downside is equipped with the third support of fixed bellows. By adopting the design, the corrugated pipe can be prevented from shaking to influence the service life.

Further, the buffer plate is made of heat-resistant rubber.

Compared with the prior art, the utility model has the advantages of it is following: each branch pipe is correspondingly provided with an independent flange plate, so that the connection tightness between the branch pipe and the cylinder can be ensured, and compared with the integral flange plate, the phenomenon that the flange plate is not connected tightly and the service life is influenced due to uneven deformation caused by thermal stress can be avoided; by arranging the first support, the second support and the third support, the shaking of the intake manifold can be reduced, and the exhaust manifold is more stable; the flange plate and the buffer plate are assembled in a mode of clamping the convex strips and the grooves, and the flange plate and the buffer plate are simple in structure and convenient to operate.

Drawings

FIG. 1 is a schematic view of an overall structure of an exhaust manifold of an automobile according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of a connection structure between each flange plate and a buffer plate in FIG. 1;

fig. 3 is a sectional view a-a in fig. 2.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the terms of orientation and positional relationship indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of protection of the present invention.

Fig. 1 to 3 are schematic structural views of a preferred embodiment of the present invention, and as shown in the drawings, the automobile exhaust manifold comprises a first branch pipe 101, a second branch pipe 102, a third branch pipe 103, a fourth branch pipe 104 which are sequentially arranged, and a first flange plate 201, a second flange plate 202, a third flange plate 203, a fourth flange plate 204, one side of which is respectively connected with the first branch pipe 101, the second branch pipe 102, the third branch pipe 103 and the fourth branch pipe 104, the first flange plate 201, the second flange plate 202, the third flange plate 203 and the fourth flange plate 204 are respectively provided with a first air passage 301 and a first mounting hole 302, the other sides of the first flange plate 201, the second flange plate 202, the third flange plate 203 and the fourth flange plate 204 are connected with a buffer plate 400, the buffer plate 400 is provided with a second air duct 401 and a second mounting hole 402 corresponding to the first air duct 301 and the first mounting hole 302. Adopt this kind of design, compare in traditional adoption whole flange plate, can make each flange plate and engine cylinder be connected's leakproofness better on the one hand, simultaneously, because engine cylinder's temperature variation can make the flange plate produce thermal stress deformation, it can cause deformation inhomogeneous because of thermal stress to adopt whole flange plate under the multi-cylinder work of automobile engine, it is not hard up to make the flange plate easily, influence exhaust manifold's life, except that, set up the buffer board, can rock the time formation buffering because of vibrations exhaust manifold, prevent that the flange plate warp, increase exhaust manifold life.

In this embodiment, the first flange plate 201, the second flange plate 202, the third flange plate 203, and the fourth flange plate 204 are fixed to the buffer plate 400 in a clamping manner. Specifically, first flange board 201, second flange board 202, third flange board 203, fourth flange board 204 are equipped with recess 500 all around respectively, the recess 500 cross-section is the trapezoidal that the tank bottom width is less than the notch width, be provided with first spacing step 501 on the recess 500 lateral wall, the shaping has on the buffer board 400 with the sand grip 403 that the recess 500 position corresponds, the cross-section of sand grip 403 with recess 500 cross-section phase-match and sand grip 403 lateral wall be equipped with the spacing step 404 of second of first spacing step 501 joint. Because the buffer block has certain elasticity, make first spacing step and the fixed of second spacing step joint realize flange board and buffer board promptly in the recess with the sand grip impressed during the assembly, during the dismantlement, only need exert certain power and break off with the fingers and thumb the buffer block and make the spacing step of second break away from the restriction of first spacing step and can separate flange board and buffer board. The design structure is very simple and the operation is convenient.

In this embodiment, the exhaust manifold further includes a three-way catalyst 600 having one end of each of the first branch pipe 101, the second branch pipe 102, the third branch pipe 103, and the fourth branch pipe 104 collected and connected, first brackets 700 are respectively disposed on the first flange plate 201, the second flange plate 202, the third flange plate 203, and the fourth flange plate 204, a plurality of second brackets 601 are circumferentially disposed on the three-way catalyst 600, and the positions of the first brackets 700 and the second brackets 601 corresponding to the engine are fixed by screws. By adopting the design, the flange plate and the three-way catalytic converter can be further fixed, and the shaking is prevented.

In this embodiment, the exhaust manifold further includes a corrugated tube 800 correspondingly connected to the three-way catalyst 600, a third bracket 801 for fixing the corrugated tube 800 is disposed on the lower side of the corrugated tube 800, and the third bracket 801 abuts against a corresponding position of the engine. By adopting the design, the corrugated pipe can be prevented from shaking to influence the service life.

In this embodiment, the buffer plate is made of heat-resistant rubber. Of course other materials may be used.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An automotive exhaust manifold, characterized by: including first branch pipe, second branch pipe, third branch pipe, fourth branch pipe and one side that arrange in proper order with first flange board, second flange board, third flange board, fourth flange board that first branch pipe, second branch pipe, third branch pipe, fourth branch pipe connect respectively, first air flue and first mounting hole have been seted up on first flange board, second flange board, third flange board, the fourth flange board respectively, the opposite side of first flange board, second flange board, third flange board, fourth flange board is connected with the buffer board, seted up on the buffer board with first air flue and first mounting hole correspond second air flue and second mounting hole.

2. The automotive exhaust manifold according to claim 1, characterized in that: the first flange plate, the second flange plate, the third flange plate and the fourth flange plate are fixedly connected with the buffer plate in a clamping mode.

3. The automotive exhaust manifold according to claim 2, characterized in that: first flange board, second flange board, third flange board, fourth flange board are equipped with the recess respectively all around, the groove cross-section is the trapezoidal that the tank bottom width is less than the notch width, be provided with first spacing step on the recess lateral wall, the shaping has on the buffer board with the sand grip that groove position corresponds, the cross-section of sand grip with groove cross-section phase-match and sand grip lateral wall be equipped with the spacing step of second of first spacing step joint.

4. The automotive exhaust manifold according to claim 1, characterized in that: exhaust manifold still include with first branch pipe, second branch pipe, third branch pipe, fourth branch pipe one end collect the three way catalyst converter who connects, be equipped with first support on first flange board, second flange board, third flange board and the fourth flange board respectively, three way catalyst converter circumference is equipped with a plurality of second supports.

5. The automotive exhaust manifold according to claim 4, characterized in that: the exhaust manifold further comprises a corrugated pipe correspondingly connected with the three-way catalytic converter, and a third support for fixing the corrugated pipe is arranged on the lower side of the corrugated pipe.

6. The automotive exhaust manifold according to claim 1, characterized in that: the buffer plate is made of heat-resistant rubber.