CN101985909A

CN101985909A - Plastic induction manifold of automobile engine

Info

Publication number: CN101985909A
Application number: CN 201010541058
Authority: CN
Inventors: 文学云; 黄国中; 邓昌立; 詹华春
Original assignee: NANCHONG GONGSU COMPONENTS CO Ltd
Current assignee: NANCHONG GONGSU COMPONENTS CO Ltd
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2011-03-16

Abstract

The invention discloses a plastic induction manifold of an automobile engine. The plastic induction manifold is composed of an induction manifold (1) and a manifold (2), wherein the induction manifold (1) is formed integrally with the manifold (2); one end of the induction manifold is closed and the other end of the induction manifold is provided with holes; and the end provided with the holes is provided with a flange connected with a seal end cover. The welding combination is not used in the plastic induction manifold of the automobile engine, but the whole structure is primarily formed by using engineering plastics to carry out one-step mould injection, thus avoiding the defects that the strength is reduced caused by the welding combination, the service life is shortened, and air leakage influences the functions of the engine; and in addition, the plastic induction manifold of the automobile engine has the advantages of low cost, light weight, no air suction resistance, small noise, strong practical applicability and the like.

Description

The motor car engine plastic air intake manifold

Technical field

The present invention relates generally to a kind of engine components that utilize composite material to produce, particularly a kind of motor car engine plastic air intake manifold.

Background technique

Utilize intake manifold that composite material replaces cast aluminium production motor car engine application success in practice, utilize composite material particularly the advantage brought of engineering plastics be that the technology capability of goods is good, product performance improve, and processing is economical, but still has some problems to overcome.In view of engine compartment environment harshness, the resistance to high temperature of plastic air intake manifold, anti-vibration and fatigue strength all will meet the requirements, be not all to have described premium properties in the existing product, for example Chinese invention patent application, name is called " plastic air intake manifold of gasoline engine ", in the application number 200910228139.0 disclosed goods, owing to plastic air intake manifold can't be made an integral body, adopted each parts made separately, again with each parts of intake manifold by being welded to connect into an integral body.Chinese invention patent, number of patent application 200510121120.8, name is called " making method of inlet manifold of IC engine ", a kind of method is disclosed, A, with injection molding method production intake manifold body, intake manifold body and intake manifold pressure stabilizing cavity, are welded to intake manifold pressure stabilizing cavity and intake manifold body respectively on the intake manifold body B, promptly can be made into desired inlet manifold of IC engine.

Above-mentioned two patent applications are all pieced together the method production intake manifold of pasting combination with edge, the advantage of this method is numerous and diverse technology of having avoided whole processing to bring, especially simplified many in the Mold Making, but composition is because the welding combination, as everyone knows, being easy to generate weldering in the welding process does not rise, disadvantages such as sealing-off, thereby influence the intensity of goods, comprise tensile strength, fatigue strength, rigidity also descends, and gas leakage, influences the tightness of goods, the following life-span of environment in engine compartment high temperature, vibration can shorten, even loses use value because of gas leakage.Thereby the problem of how avoiding existing must conscientiously be studied.

Summary of the invention

The object of the present invention is to provide a kind of shortcoming that can overcome known technology, motor car engine plastic air intake manifold that can bigger lifting quality of item and preparation method thereof.

For achieving the above object, the solution of the present invention is: a kind of motor car engine plastic air intake manifold is made up of intake manifold, manifold, and its specialization is: the intake manifold, the manifold one makes, intake manifold's end sealing, the other end has the hole, and nose end has flange and is connected with end cover.

Adopt such scheme, described intake manifold is made an overall structure, no longer inlay to piece together and paste, thereby the defective that makes goods avoid known technology utilization welding combination to be brought has realized purpose of the present invention with the method for welding.

Below in conjunction with diagram and embodiment scheme is described in more detail.

Description of drawings

Fig. 1 is the stereogram of motor car engine plastic air intake manifold;

Fig. 2 is the front view of Fig. 1 stereogram;

Fig. 3 is the A-A sectional view among Fig. 2;

Fig. 4 is that B among Fig. 2 is to view;

Fig. 5 is the C-C sectional view among Fig. 2.

Embodiment

As shown in Figure 1, described plastic air intake manifold comprises intake manifold 1, one group of manifold 2 is distributed on the intake manifold 1, manifold 2 pipe shafts are slight curving and with intake manifold 1 axis spatial vertical, one end of manifold 2 is connected with intake manifold's 1 one, the affixed rhombus flange 3 in the other end air outlet, and rhombus flange 3 has many stiffening ribs 4 with the joint, aperture, present embodiment is four, and described rhombus flange 3 is connected with engine intake.Intake manifold 1 a end 5 sealing, the other end has the hole, and nose end is a flange plate 6, fixedlys connected with a blind flange 7, and described hole is an auxiliary hole, adapts to processes and the hole of opening.Have flanged 8 hole in intake manifold 1 pipe shaft neutral position, link to each other with engine intake.

As shown in Figure 2, utilization is cutd open and is shown and more clearly illustrate intake manifold's 1 closed end 5, and demonstrate manifold 2 mouths of pipe with axis 10 spaces of axis 9 and manifold 2 of rhombus flange 3 angle that crosses, the attachment face 11 of flange 3 and intake manifold with the attachment face 12 of flange plate 8 parallel, this is that the structure of motor determines.

Cuing open as shown in Figure 3 shows that face represents that intake manifold 1 cross section is a rhombus, increased intake manifold's admission space, and manifold 2 is a circular arc 13 with intake manifold 1 inwall joint, and transition slyness in joint is little to air resistance.The cross section of manifold is a rectangle.

The shape that shows intake manifold's 1 one end flange dishes 6 and outlet stomidium as the B of Fig. 4 to view.

Cross section as shown in Figure 5 shows that the attachment hole of being opened on all blind flanges all is added with metal insert 14, to increase join strength.

These goods mainly are used on the four cylinder engine.

These goods do not use the welding combination, but overall structure is passed through the mold injection one-shot forming with engineering plastics, thereby the strength decreased of having avoided the welding combination to bring, shorten service life, gas leakage affects the disadvantage of the duty of engine, and it is low to have a cost, in light weight, the air inlet non-resistance, the advantage such as noise is little has very strong practicality.

Claims

1. a motor car engine plastic air intake manifold is made up of intake manifold (1), manifold (2), it is characterized in that: intake manifold (1), and manifold (2) one makes, intake manifold's end sealing, the other end has the hole, and nose end has flange and is connected with end cover.

2. a kind of motor car engine plastic air intake manifold according to claim 1, it is characterized in that: one group of manifold (2) is distributed on the intake manifold (1), the manifold pipe shaft is slight curving and with intake manifold's axis spatial vertical, one end of manifold is connected with intake manifold's one, the affixed rhombus flange (3) in the other end air outlet.

3. a kind of motor car engine plastic air intake manifold according to claim 2 is characterized in that: rhombus flange (3) has many stiffening ribs (4) with the joint, aperture.

4. a kind of motor car engine plastic air intake manifold according to claim 2, it is characterized in that: manifold (2) mouth of pipe with axis (10) space of axis (9) and manifold (2) of rhombus flange (3) angle that crosses, the attachment face (11) of flange (3) and intake manifold with the attachment face (12) of flange plate (8) parallel.

5. a kind of motor car engine plastic air intake manifold according to claim 1 is characterized in that: intake manifold's (1) cross section is a rhombus.

6. a kind of motor car engine plastic air intake manifold according to claim 2 is characterized in that: manifold (2) is circular arc (13) with intake manifold (1) inwall joint.