CN105545441A

CN105545441A - Exhaust manifold with compensation function

Info

Publication number: CN105545441A
Application number: CN201610056896.4A
Authority: CN
Inventors: 徐磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-27
Filing date: 2016-01-27
Publication date: 2016-05-04

Abstract

The invention relates to an exhaust pipe, in particular to an exhaust manifold with the compensation function, and belongs to the technical field of exhaust pipes. The exhaust manifold comprises a plurality of upper exhaust manifold bodies, the upper end of each upper exhaust manifold body is connected with an upper connecting flange, the lower ends of the upper exhaust manifold bodies are jointly connected with a main exhaust pipe, the lower end of the main exhaust pipe is connected with a lower connecting flange, and every two adjacent upper exhaust manifold bodies are connected through a corrugated pipe. The exhaust manifold is simple, compact and reasonable in structure, the metal corrugated pipes are adopted to serves as compensation elements of the exhaust manifold and can be used for compensating for size and displacement changes, generated by mounting, vibration and temperature changes, of the exhaust manifold.

Description

With the gas exhaust manifold of compensate function

Technical field

The present invention relates to a kind of outlet pipe, a kind of gas exhaust manifold with compensate function, belongs to outlet pipe technical field specifically.

Background technique

At present, the tail gas of motor is the outlet pipe entered below through the guide functions of gas exhaust manifold from cylinder.

In prior art, the structure of gas exhaust manifold is shown in Fig. 1.Gas exhaust manifold is connected with cylinder by upper adpting flange 1, and the tail gas in cylinder enters the upper manifold of exhaust by relief opening, is discharged by air outlet by the guide functions being vented upper manifold.Connected by connecting tube 6 between two sections of upper manifolds of exhaust, joint adopts butterfly Sealing 7 to carry out sealing in case leak-stopping gas.Existing gas exhaust manifold Problems existing is: when 1) installing, multiple upper adpting flange is connected with cylinder, easily produces location, and brings the error of installation; 2) vibrations produced in road driving engineering due to automobile can conduct to motor, and because whole gas exhaust manifold is one, quality is comparatively large, and during overall vibrations, flange 1 joint is comparatively large by shaking force, and flange connections easily stretches and causes Joint failure; 3) motor exhaust is very large by temperature variation during gas exhaust manifold, causes expansion and the contraction of gas exhaust manifold, can produce inefficacy cause gas leakage at butterfly Sealing 7 place.

Summary of the invention

The object of the invention is to overcome above-mentioned deficiency, thus a kind of gas exhaust manifold with compensate function is provided, extend the working life of gas exhaust manifold and guarantee that gas exhaust manifold works reliably.

According to technological scheme provided by the invention, the gas exhaust manifold with compensate function comprises manifold in multiple exhaust, and in each exhaust, manifold upper end connects upper adpting flange, is provided with suction port in upper adpting flange; In multiple exhaust, manifold lower end connects exhaust manifold jointly, and exhaust manifold lower end connects lower adpting flange, is provided with air outlet, it is characterized in that: every two adjacent exhaust are connected by bellows between manifold in lower adpting flange.

Further, bellows adopts singel-ply bellows, and the body of singel-ply bellows is single layer structure.

Further, bellows adopts multiply bellows, and the body of multiply bellows is multi-layer structure.

Further, bellows adopts the bellows of band honeycomb duct, is provided with honeycomb duct in the body of the bellows of band honeycomb duct.

Further, any one end in bellows two ends can adopt colds pressing or welds or the Placement of flange connects the upper manifold of exhaust.

Compared with the prior art the present invention has the following advantages:

Structure of the present invention is simple, compact, reasonable, adopts metal bellows as the compensating element of gas exhaust manifold, can be used for compensating gas exhaust manifold owing to installing, vibrations, the change of the size that temperature variation produces and displacement; When gas exhaust manifold is connected by multiple flange with cylinder, because attachment face is same plane, so position degree requires very high, and after installing bellows additional, because bellows contraposition can move and compensate, so can compensate owing to installing the error caused in axis and radial direction; Bellows is an elastic component, and when motor runs vibrations, it can absorb the vibrations of all directions; Because the temperature of motor exhaust is very high, butterfly seal ring in structure originally easily lost efficacy and followed the string and cause joint to leak gas under the effect of high/low temperature, existing bellows adopts resistant to elevated temperatures stainless steel material, and temperature characteristic is stablized and owing to being the change that wave structure can compensate the size brought due to temperature.

Accompanying drawing explanation

Fig. 1 is the plan view of gas exhaust manifold in prior art.

Fig. 2 is plan view of the present invention.

Fig. 3 is singel-ply bellows plan view.

Fig. 4 is multiply bellows plan view.

Fig. 5 is the bellows plan view of band honeycomb duct.

Fig. 6 is that bellows adopts the structural drawing colding pressing or be welded to connect the upper manifold of two ends exhaust.

Fig. 7 is that bellows adopts one end to cold pressing or is welded to connect, and the other end adopts the structural drawing of the upper manifold of Flange joint exhaust.

Fig. 8 is the structural drawing that bellows adopts the upper manifold of Flange joint two ends exhaust.

Manifold on the upper adpting flange of description of reference numerals: 1-, 2-exhaust, 3-bellows, 3a-singel-ply bellows, 3b-multiply bellows, 3c-are with adpting flange, 5-exhaust manifold, 6-connecting tube, 7-butterfly Sealing under the bellows of honeycomb duct, 3d-honeycomb duct, 4-.

Embodiment

Embodiment in is by reference to the accompanying drawings further described by the present invention below:

As shown in Figure 2, the present invention mainly comprises manifold 2 in multiple exhaust, and in each exhaust, manifold 2 upper end connects upper adpting flange 1, is provided with suction port in upper adpting flange 1, and in each exhaust, manifold 2 is by a cylinder corresponding on upper adpting flange 1 connecting engine.

In multiple exhaust, manifold 2 lower end connects exhaust manifold 5 jointly, and exhaust manifold 5 lower end connects lower adpting flange 4, is provided with air outlet in lower adpting flange 4.

Every two adjacent exhaust are connected by bellows 3 between manifold 2.In embodiment one as shown in Figure 3, bellows 3 adopts singel-ply bellows 3a, and the body of singel-ply bellows 3a is single layer structure.

In embodiment two as shown in Figure 4, bellows 3 adopts multiply bellows 3b, and the body of multiply bellows 3b is multi-layer structure.

In embodiment three as shown in Figure 5, bellows 3 adopts the bellows 3c of band honeycomb duct, is provided with honeycomb duct 3d in the body of the bellows 3c of band honeycomb duct.

In embodiment four as shown in Figure 6, bellows 3 two ends adopt the Placement of colding pressing or welding to connect the upper manifold 2 of exhaust.

In embodiment five as shown in Figure 7, bellows 3 one end adopts the Placement of colding pressing or welding to connect the upper manifold 2 of exhaust, and the other end adopts the upper manifold 2 of Flange joint exhaust.

In embodiment six as shown in Figure 8, bellows 3 two ends adopt the upper manifold 2 of Flange joint exhaust.

The present invention adopts metal bellows as the compensating element of gas exhaust manifold, can be used for compensating gas exhaust manifold owing to installing, vibrations, the change of the size that temperature variation produces and displacement.

(1) compensation is installed: when gas exhaust manifold is connected by multiple flange with cylinder, because attachment face is same plane, so position degree requires very high, and after installing bellows additional, because bellows contraposition can move and compensate, so can compensate owing to installing the error caused in axis and radial direction.

(2) vibration compensation: bellows is an elastic component, when motor runs vibrations, it can absorb the vibrations of all directions.

(3) temperature correction: because the temperature of motor exhaust is very high, the butterfly seal ring in structure originally easily lost efficacy and followed the string and cause joint to leak gas under the effect of high/low temperature.Existing bellows adopts resistant to elevated temperatures stainless steel material, and temperature characteristic is stablized and owing to being the change that wave structure can compensate the size brought due to temperature.

Claims

1. with a gas exhaust manifold for compensate function, comprise manifold (2) in multiple exhaust, in each exhaust, manifold (2) upper end connects upper adpting flange (1), and upper adpting flange is provided with suction port in (1); In multiple exhaust, manifold (2) lower end connects exhaust manifold (5) jointly, exhaust manifold (5) lower end connects lower adpting flange (4), be provided with air outlet in lower adpting flange (4), it is characterized in that: every two adjacent exhaust are connected by bellows (3) between manifold (2).

2. as claimed in claim 1 with the gas exhaust manifold of compensate function, it is characterized in that: described bellows (3) adopts singel-ply bellows (3a), and the body of singel-ply bellows (3a) is single layer structure.

3. as claimed in claim 1 with the gas exhaust manifold of compensate function, it is characterized in that: described bellows (3) adopts multiply bellows (3b), and the body of multiply bellows (3b) is multi-layer structure.

4. as claimed in claim 1 with the gas exhaust manifold of compensate function, it is characterized in that: described bellows (3) adopts the bellows (3c) of band honeycomb duct, in the body of the bellows (3c) of band honeycomb duct, be provided with honeycomb duct (3d).

5. as claimed in claim 1 with the gas exhaust manifold of compensate function, it is characterized in that: any one end in described bellows (3) two ends can adopt colds pressing or weld or the Placement of flange connects exhaust and goes up manifold (2).