CN201818350U

CN201818350U - Manifold type catalytic converter

Info

Publication number: CN201818350U
Application number: CN201020579150XU
Authority: CN
Inventors: 欧娟; 郭昌文; 孙健; 贾海建
Original assignee: CHONGQING HAITE AUTOMOTIVE EXHAUST SYSTEM Co Ltd
Current assignee: CHONGQING HAITE AUTOMOTIVE EXHAUST SYSTEM Co Ltd
Priority date: 2010-10-27
Filing date: 2010-10-27
Publication date: 2011-05-04
Anticipated expiration: 2020-10-27

Abstract

The utility model introduces a manifold catalytic converter. The converter comprises a converter body, wherein a manifold body is connected to one end of the converter body, and a rear casing is connected to the other end of the converter body; an exhaust pipe is connected on the rear casing; an outlet end flange is sleeved on the exhaust pipe; a rear sensor interface for assembling a rear sensor is arranged on the rear casing; and a plurality of branch manifolds are connected on the manifold body, and are double-layer vacuum pipes. Due to the adoption of the double-layer vacuum connecting pipes, heat loss of the manifolds before tail gas enters the catalytic converter can be reduced to ensure that catalyst in the catalytic converter can quickly reach the perfect working state; and the design of the manifold part has more flexible space to adapt to different whole vehicle designs, so that the converter can be arranged in the vehicle more conveniently.

Description

A kind of manifold-type catalytic converter

Technical field

The utility model relates to the exhaust catalytic purification treatment device of Motor Vehicle, is specially a kind of manifold-type catalytic converter, belongs to the auto parts machinery technical field.

Background technique

Along with the development of society, people are increasing to the demand of Motor Vehicle, and the tail gas that Motor Vehicle is discharged also becomes one of primary pollution source of urban atmosphere.China administers motor-vehicle tail-gas specially and has put into effect a series of relevant laws and regulations, and has worked out corresponding automotive emission standard.

In order to reach the requirement of automotive emission standard, when motor-vehicle tail-gas was carried out purified treatment, most of vehicles had adopted the manifold-type catalytic converter.At present the manifold-type catalytic converter that uses mainly is made of converter body and the manifold body and the rear case that are arranged at converter body two ends respectively, in the converter body, catalyzer is housed, converter is connected with the motor exhaust relief opening by the manifold on the manifold body, is connected with next mechanism by the outlet pipe on the rear case again then.Therefore this catalytic converter when handling tail gas, can make the catalyzer in the converter reach initiation temperature rapidly, thereby can effectively satisfy high-level exhaust emissions requirement owing to be installed near the engines tail gas outlet.But, the manifold that is connected with motor on the present manifold-type catalytic converter generally all is the pipe fitting that adopts individual layer, the tail gas that motor is discharged is before entering catalytic converter, heat is losing easily through in the process of manifold, temperature when this can cause catalytic reaction reduces, and is unfavorable for promoting catalytic effect.

The model utility content

At above-mentioned deficiency of the prior art, it is relatively poor that the purpose of this utility model is to solve the manifold thermal insulation property that is used to connect motor on the present catalytic converter, make the tail gas heat quantity problem faster of scattering and disappearing, and provide a kind of and can reduce the heat dissipation of tail gas before entering catalytic converter, and manifold-type catalytic converter more easily is installed.

The technical solution of the utility model: a kind of manifold-type catalytic converter, comprise the converter body, an end of described converter body connects manifold body, and the other end connects rear case; On described rear case, be connected with outlet pipe, on outlet pipe, be with the outlet end flange, on described rear case, also be provided with the back sensor interface that is used to install the back sensor; It is characterized in that be connected with some manifolds on described manifold body, described manifold is the double-layer vacuum pipe fitting.

Further, on the described manifold body lower end of each manifold be interconnected and accumulate a port after link to each other with manifold body again.

Further, on described manifold body, also be provided with the front sensor interface that is used to install front sensor.

With respect to prior art, the utlity model has following beneficial effect:

1, reduced the heat loss of tail gas before entering catalytic converter: manifold of the present utility model has adopted the double-layer vacuum connection pipe fitting, it can more effectively keep the heat of tail gas and be delivered in the catalytic converter, make the catalyzer in the catalytic converter can reach desirable working state rapidly, and satisfy the efficient requirement that transforms of tail gas;

It is convenient when 2, catalytic converter being installed: because converter of the present utility model has solved the problem of heat dissipation, thereby make the design of manifold part that bigger flexible space can be arranged, can adapt to different car load designs, for example can proper extension double-layer vacuum connection pipe fitting, also convenient when in car, converter being installed like this.

Description of drawings

Fig. 1 is the structural representation of the utility model manifold-type catalytic converter;

Fig. 2 is the structure sectional view after A portion amplifies among Fig. 1.

Among the figure, 1-converter body, 2-manifold body, 3-rear case, 4-manifold, 5-front sensor interface, 6-manifold thermal baffle link, 7-outlet pipe, 8-outlet end flange, 9-back sensor interface, 10-converter thermal baffle link.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, a kind of manifold-type catalytic converter comprises converter body 1, and the catalyzer that is used for purified treatment tail gas is housed in converter body 1, and an end of described converter body 1 connects manifold body 2, and the other end connects rear case 3.The inner chamber of described manifold body 2 is communicated with converter body 1, on described manifold body 2, be connected with some manifolds 4, described manifold 4 is the double-layer vacuum pipe fitting of stainless steel, on the manifold body 2 lower end of each manifold 4 be interconnected and accumulate a port after link to each other with manifold body 2 again, the upper end of each manifold 4 is connected with engine exhaust port by the motor car engine flange respectively on the manifold body 2.On manifold body 2, also be provided with the front sensor interface 5 that is used to install front sensor,, can monitor data such as entering into intrinsic gas pressure intensity of converter and flow in real time by front sensor is installed.On at least one manifold 4, be provided with the manifold thermal baffle link 6 that is used to install thermal baffle in the utility model, on converter body 1, also be provided with the converter thermal baffle link 10 that is used to install thermal baffle, during installation thermal baffle be articulated in respectively on manifold thermal baffle link 6 and the converter thermal baffle link 10 and get final product.

Referring to Fig. 2, be the structure sectional view of manifold in the utility model 4, owing to be vacuum between the inside and outside two-layer Stainless Steel Tube of manifold 4, so it can well seal heat, prevents that the heat in the tail gas is lost by air, thereby reaches heat preservation effect.

Referring to Fig. 1, be connected with outlet pipe 7 in the lower end of rear case 3, on outlet pipe 7, be with outlet end flange 8, described outlet pipe 7 is connected with the pipeline of next mechanism by outlet end flange 8, on the side of described rear case 3, also be provided with the back sensor interface 9 that is used to install the back sensor, by the back sensor is installed, can further monitor in real time through data such as the gas pressure intensity of discharging from the converter body after the catalytic reaction and flows, to make things convenient for inspector's information search, comparison.

Working principle of the present utility model: the tail gas that motor is discharged enters converter body 1 from manifold 4 through manifold body 2, is drained into next member through the tail gas after the catalyzer purified treatment by the outlet pipe on the rear case 37.During installation, the manifold 4 of catalytic converter upper end directly links to each other with motor by engine flange, and the outlet pipe 7 of lower end links to each other with next member by outlet end flange 8.

Adopt catalytic converter of the present utility model can allow the heat of motor exhaust be delivered to rapidly in the converter body, make inner catalyzer can reach desirable operating temperature rapidly, thereby effectively improve transformation efficiency.Manifold of the present utility model has adopted the vacuum double design, reduced the loss of tail gas heat quantity compared with before-improvement, simultaneously, design has the Motor Vehicle of bigger restriction for car load, length that can the proper extension manifold after the improvement helps the design of car load and the installation of catalytic converter like this.

Claims

1. a manifold-type catalytic converter comprises converter body (1), and an end of described converter body (1) connects manifold body (2), and the other end connects rear case (3); On described rear case (3), be connected with outlet pipe (7), on outlet pipe (7), be with outlet end flange (8), on described rear case (3), also be provided with the back sensor interface (9) that is used to install the back sensor; It is characterized in that be connected with some manifolds (4) on described manifold body (2), described manifold (4) is the double-layer vacuum pipe fitting.

2. manifold-type catalytic converter according to claim 1 is characterized in that, also is provided with the front sensor interface (5) that is used to install front sensor on described manifold body (2).

3. manifold-type catalytic converter according to claim 1 is characterized in that, the lower end that described manifold body (2) goes up each manifold (4) be interconnected and accumulate a port after link to each other with manifold body (2) again.

4. manifold-type catalytic converter according to claim 3 is characterized in that, is provided with the manifold thermal baffle link (6) that is used to install thermal baffle at least one manifold (4).

5. according to claim 2 or 3 described manifold-type catalytic converters, it is characterized in that, on described converter body (1), also be provided with the converter thermal baffle link (10) that is used to install thermal baffle.