CN206376929U

CN206376929U - Exhaust manifold

Info

Publication number: CN206376929U
Application number: CN201720086731.1U
Authority: CN
Inventors: 李海滔; 张自航; 林强; 王志雄
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2017-01-23
Filing date: 2017-01-23
Publication date: 2017-08-04
Anticipated expiration: 2027-01-23

Abstract

The utility model discloses a kind of exhaust manifold, including air inlet and four exhaust outlets, the first pipeline is formed between air inlet and first row gas port, second pipe is formed between air inlet and second exhaust port, the 3rd pipeline is formed between air inlet and the 3rd exhaust outlet, the 4th pipeline is formed between air inlet and the 4th exhaust outlet；Wherein, the first pipeline and the 4th pipeline combine to form the first transverse tube, and second pipe and the 3rd pipeline combine to form the second transverse tube, and the first transverse tube and the second transverse tube are " one " font.Whereby, exhaust manifold of the present utility model, can reduce stress concentration, reduce exhaust manifold mould difficulty of processing, improve exhaust manifold heat-resisting quantity.

Description

Exhaust manifold

Technical field

The utility model is related to engine art, more particularly to a kind of exhaust manifold.

Background technology

, it is necessary to the high-temperature gas after burning constantly be discharged from blast pipe, through arranging engine in engine operation process Warm monitoring temperature, minimum 459 DEG C of row's temperature after exhaust pipe of engine turbocharging, has been up to 617 DEG C, has surpassed when serious Cross exhaust tube material and recommend 680 DEG C of maximum operation (service) temperature.Such as Fig. 1, in the middle of the second pipe 2 of current exhaust manifold, the 3rd pipeline 3 Structure is also easy to produce high temperature thermal stress concentration close to V-shape structure 5, and the exhaust pipe of engine causes exhaust manifold to break because temperature is too high Split.After exhaust manifold fracture, the high-temperature gas leaked out can burn up the parts such as the low temperature resistant pipeline of engine environment, and then lead Cause vehicle fire to occur severe safety problem, threaten user and passenger survival safety, and bring serious reimbursement of damages to company And company quality's prestige problem.

The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and It is not construed as recognizing or implies that the information structure has been existing well known to persons skilled in the art in any form Technology.

Utility model content

The purpose of this utility model is to provide a kind of exhaust manifold, can reduce stress concentration, reduce exhaust manifold mould Have difficulty of processing, improve exhaust manifold heat-resisting quantity.

To achieve the above object, the utility model provides a kind of exhaust manifold, including air inlet and four exhaust outlets, enters The first pipeline is formed between gas port and first row gas port, second pipe is formed between air inlet and second exhaust port, air inlet and The 3rd pipeline is formed between 3rd exhaust outlet, the 4th pipeline is formed between air inlet and the 4th exhaust outlet；Wherein, the first pipeline and 4th pipeline combines to form the first transverse tube, and second pipe and the 3rd pipeline combine to form the second transverse tube, the first transverse tube and the second horizontal stroke Pipe is " one " font.

Compared with prior art, the utility model has the advantages that：Exhaust manifold of the present utility model, can drop Low exhaust manifold mould difficulty of processing, improves production efficiency reduction production cost；Avoid exhaust manifold stress concentration, pre- anti-vehicle The generation of hidden danger on fire, protects user's life security, improves company quality's prestige.

Brief description of the drawings

Fig. 1 is existing exhaust manifold structure schematic diagram.

Fig. 2 is according to a kind of structural representation of exhaust manifold of the present utility model.

Main Reference Numerals explanation：

The pipelines of 1- first, 2- second pipes, the pipelines of 3- the 3rd, the pipelines of 4- the 4th, 5-V font structures, the transverse tubes of 6- first, 7- Second transverse tube, 8- air inlets.

Embodiment

Below in conjunction with the accompanying drawings, embodiment of the present utility model is described in detail, it is to be understood that this practicality New protection domain is not limited by embodiment.

Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members Part or other parts.

As shown in Fig. 2 according to a kind of exhaust manifold of the utility model embodiment, including air inlet 8 and four Exhaust outlet, forms the first pipeline 1 between air inlet 8 and first row gas port, second is formed between air inlet 8 and second exhaust port and is managed Formed between road 2, the exhaust outlet of air inlet 8 and the 3rd and the 4th pipeline is formed between the 3rd pipeline 3, the exhaust outlet of air inlet 8 and the 4th 4；Wherein, the first pipeline 1 and the 4th pipeline 4 combine to form the first transverse tube 6, and the pipeline 3 of second pipe 2 and the 3rd combines to form second Transverse tube 7, the first transverse tube 6 and the second transverse tube 7 are " one " font.

In a word, exhaust manifold of the present utility model, is changed to " one " font structure by existing " V " font structure, can drop Low exhaust manifold mould difficulty of processing, improves production efficiency reduction production cost；Avoid exhaust manifold stress concentration, pre- anti-vehicle The generation of hidden danger on fire, protects user's life security, improves company quality's prestige.

The foregoing description to specific illustrative embodiment of the present utility model be in order to illustrate and illustration purpose.These Description is not wishing to being defined to the utility model into disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining certain principles of the present utility model And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model Property embodiment and a variety of selections and change.Scope of the present utility model is intended to by claims and its waits similar shape Formula is limited.

Claims

1. a kind of exhaust manifold, including air inlet and four exhaust outlets, it is characterised in that air inlet and the first row gas port it Between form the first pipeline, second pipe, the air inlet and the 3rd exhaust outlet are formed between the air inlet and second exhaust port Between formed the 3rd pipeline, between the air inlet and the 4th exhaust outlet formed the 4th pipeline；

Wherein, first pipeline and the 4th pipeline combine to form the first transverse tube, the second pipe and the 3rd pipe Road combines to form the second transverse tube, and first transverse tube and second transverse tube are " one " font.