CN202391534U

CN202391534U - Exhaust manifold with small gap

Info

Publication number: CN202391534U
Application number: CN201120562581XU
Authority: CN
Inventors: 张涛; 唐寅君
Original assignee: KATCON (SHANGHAI) EXHAUST CONTROL SYSTEM CO Ltd
Current assignee: KATCON (SHANGHAI) EXHAUST CONTROL SYSTEM CO Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-22
Anticipated expiration: 2021-12-29

Abstract

The technical proposal of the utility model provides an exhaust manifold with a small gap. The exhaust manifold comprises air inlet pipes and semi-shells, wherein a first air inlet pipe and a fourth air inlet pipe form a combination pipe; a second air inlet pipe and a third air inlet pipe form a combination pipe; a left semi-shell and a right semi-shell form an integral shell; the combination pipe of the first air inlet pipe and the fourth air inlet pipe and the combination pipe of the second air inlet pipe and the third air inlet pipe are connected with the left semi-shell and the right semi-shell; gaps are arranged between the inner walls of the left semi-shell and the right semi-shell and the first air inlet pipe and the fourth air inlet pipe, as well as between the inner walls and the second air inlet pipe and the third air inlet pipe respectively; and the gaps are triangular. The exhaust manifold disclosed by the utility model has the advantages that because rhombic gaps are changed into the triangular gaps, areas of the gaps are obviously reduced; and the welding reliability is effectively increased; and therefore, the rework rate and the rejection rate of products are greatly reduced, so that the production cost is finally reduced.

Description

The gas exhaust manifold that a kind of gap is little

Technical field

The utility model relates to the little gas exhaust manifold in a kind of gap, is mainly used in to reduce between inlet end awl and the suction tude after the assembling, because of the big gas leak phenomenon that causes in the gap between two half-shell inlet ends awls, belongs to the engine part technical field.

Background technique

It is a kind of gas exhaust manifold design proposal commonly used that two half-shell inlet ends awl adds suction tude; Like Fig. 1, shown in Figure 2; Earlier first suction tude 1 and the 4th suction tude 4 are fitted together and become composite tube; Second suction tude 2 and the 3rd suction tude 3 fit together and become composite tube, and 6 assemblings become the monobloc container body to left half housing 5 with right half housing, again with first suction tude 1 and the 4th suction tude 4 composite tubes and second suction tude 2 and the 3rd suction tude 3 composite tubes while and a left side half housing 5 and the 6 whole housings assemblings of right half housing; Because the joint of two and half housings upper end has flange; Therefore can be respectively and between first suction tude 1 and the 4th suction tude 4 at a left side half housing 5 and right half housing, 6 inwalls, and produce gap 7 between second suction tude 2 and the 3rd suction tude 3, gap 7 is a rhombus.The production and processing technology of stamping part and pipe chamfering is difficult to this gap is dwindled at present; Weld seam is difficult to this gap of disposable covering, thereby causes being prone to produce gas leak phenomenon here, and the rework rate of gas exhaust manifold and scrappage are improved; Even and repair, repair welding is also very difficult.

Summary of the invention

The utility model technical problem to be solved provides the little gas exhaust manifold in a kind of gap, and the gap between the interior suction tude of two half-shell inlet ends awl is dwindled, and reduces the gas leak phenomenon that therefore causes, and improves soldering reliability.

In order to achieve the above object; The technological scheme of the utility model has provided the little gas exhaust manifold in a kind of gap, comprises suction tude and half housing, and first suction tude and the 4th suction tude are formed composite tube; Second suction tude and the 3rd suction tude are formed composite tube; A left side half housing and right half housing are formed whole housing, and first suction tude is connected with right half housing with left half housing with the 3rd suction tude composite tube with second suction tude with the 4th suction tude composite tube, and the inwall of left half housing, right half housing is respectively and between first suction tude and the 4th suction tude; And second be provided with the gap between suction tude and the 3rd suction tude, and described gap is a triangle.

The advantage of the utility model is, through changing the rhombus gap into the triangle gap, has significantly dwindled the area in gap, has effectively improved welding reliability, thereby has reduced product rework rate and scrappage significantly, finally reduces production costs.

Description of drawings

Fig. 1 is the structural representation of existing gas exhaust manifold;

Fig. 2 is that the A of existing gas exhaust manifold is to local structure for amplifying schematic representation;

Fig. 3 is the structural representation of the little gas exhaust manifold in a kind of gap;

Fig. 4 is that the A of the little gas exhaust manifold in a kind of gap is to local structure for amplifying schematic representation.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Embodiment

Like Fig. 3, shown in 4, first suction tude 1 and the 4th suction tude 4 are fitted together becomes composite tube earlier, and second suction tude 2 and the 3rd suction tude 3 fit together and become composite tube; 6 assemblings become the monobloc container body to a left side half housing 5 with right half housing; With first suction tude 1 and the 4th suction tude 4 composite tubes and second suction tude 2 and the 3rd suction tude 3 composite tubes while and a left side half housing 5 and the 6 whole housings assemblings of right half housing, different again with original design, a left side half housing 5 and the flange of joint, right half housing, 6 upper end are removed; Butt welding between half shell and half shell is located in the end; Original like this for the gap 7 of rhombus just becomes leg-of-mutton gap 8, the area in gap 8 reduces 1/2 at least than gap 7, can significantly improve soldering reliability thus; Finally reduce product rework rate and scrappage greatly, reduce production costs.

Though the utility model discloses as above with preferred embodiment; Right its is not in order to limit the utility model; Any those skilled in the art; In spirit that does not break away from the utility model and scope, when can doing a little modification and perfect, so the protection domain of the utility model is when being as the criterion with what claims defined.

Claims

1. gas exhaust manifold that the gap is little; Comprise suction tude and half housing; First suction tude (1) and the 4th suction tude (4) are formed composite tube; Second suction tude (2) and the 3rd suction tude (3) are formed composite tube, and left half housing (5) and right half housing (6) are formed whole housing, and first suction tude (1) is connected with right half housing (6) with left half housing (5) with the 3rd suction tude (3) composite tube with second suction tude (2) with the 4th suction tude (4) composite tube; The inwall of a left side half housing (5), right half housing (6) is respectively and between first suction tude (1) and the 4th suction tude (4); And second be provided with gap (8) between suction tude (2) and the 3rd suction tude (3), it is characterized in that described gap (8) are triangle.