CN202001155U

CN202001155U - Plastic air inlet manifold for automobile engine

Info

Publication number: CN202001155U
Application number: CN2011200456355U
Authority: CN
Inventors: 梁照强
Original assignee: SHANGHAI AOSATE INDUSTRIAL Co Ltd
Current assignee: SHANGHAI AOSATE INDUSTRIAL Co Ltd
Priority date: 2011-02-24
Filing date: 2011-02-24
Publication date: 2011-10-05
Anticipated expiration: 2021-02-24

Abstract

The utility model relates to a part of an automobile engine, in particular to a plastic air inlet manifold for the automobile engine. The plastic air inlet manifold consists of a resonant cavity, four air inlet bent pipes and an installation seat, wherein the lower end of each air inlet bent pipe is communicated with the resonant cavity, and the upper end of each air inlet bent pipe is communicated with the installation seat; an air inlet is formed in the resonant cavity; four air outlets corresponding to the four air inlet bent pipes are formed in the installation seat; the length of the four air inlet bent pipes is 400+/-15mm; the internal aperture of the air inlet of the resonant cavity is phi50+/-5mm; and the axis distance between two adjacent air outlets of the four air outlets in the installation seat is 91.8+/-3mm. The plastic air inlet manifold is suitable for conveying air required by combustion to the automobile engine in an automobile.

Description

A kind of motor car engine plastic air intake manifold

Technical field

The utility model relates to the component of motor car engine, relates in particular to a kind of motor car engine plastic air intake manifold.

Background technique

Intake manifold is the main body part of automotive engine air intake system, and it is between closure and engine intake valve.After air entered closure, through the intake manifold shunting, the quantity of corresponding cylinder imported air respectively in each cylinder.At present domestic automobile inlet manifold is many to be made with the aluminum alloy material casting.As a kind of SQR473F h type engine h intake manifold of public use, its structure mainly by resonant cavity, four intake elbows and fitting seat constitute side by side, divide upper body and lower body two-part composition.There is the upper body pipe of suction port, resonant cavity and one group of bending the upper body, lower body pipe, EFI mouth and air outlet that lower body has one group of upper body pipe with bending to match, seal with liner between upper body and lower body, its advantage is compact structure, intensity height, but have following defective: 1. the intake manifold outer wall is coarse, needs secondary operations; 2. cast structure easily forms hidden danger of quality such as sand holes, bubble, has influence on the performance of petrol engine; 3. cost of raw material height, quality is heavy; 4. intake manifold rough inner surface, the inlet stream dynamic resistance is big; 5. the sealing effect at liner place is bad.

Along with continuing to bring out of new material, new process, plastic air intake manifold progressively becomes the substitute products of aluminum alloy air inlet manifold, and its weight only is 1/2 of aluminium matter manifold, and it is when low speed and load, and power, moment of torsion increase rate can reach more than 10%.Simultaneously, the working of plastics air flue is smooth, has improved engine performance, and oil consumption reduces by 6%～8%.And the common technical merit that exists of plastic air intake manifold of domestic production at present is low, the requirement that its Cross section Design can not satisfy the motor car engine fuel-economizing and increase gas flow.

Summary of the invention

Cross section Design at existing plastic air intake manifold can't satisfy the motor car engine fuel-economizing and increase the problem of the requirement of gas flow, and it is big that the purpose of this utility model provides a kind of gas flow, the motor car engine plastic air intake manifold that intake efficiency is high.

The technological scheme that its technical problem that solves the utility model adopts is: it is made of resonant cavity, four intake elbows and fitting seat, one end of intake elbow is communicated with resonant cavity, the other end of intake elbow is communicated with fitting seat, resonant cavity is provided with inlet hole, be shaped on the fitting seat respectively and four corresponding four air outlet holes of intake elbow, four intake elbow length are 400 ± 15mm; The internal orifice dimension of the inlet hole of resonant cavity is φ 50 ± 5mm; Distance of shaft centers on the fitting seat between adjacent two air outlet holes of four air outlet holes is from being 91.8mm ± 3mm.

Further, be equipped with stiffening rib on described resonant cavity and four intake elbows.

The effect of this patent is: 1, the utility model realizes that to the improvement of the size of air outlet hole on resonant cavity inlet hole and the fitting seat gas flow is big, the purpose that intake efficiency is high, and then improve fuel availability and engine performance.2, intake manifold of the present utility model adopts the engineering plastics single injection-molded, need not secondary operations, and product precision height does not have noisy eye and bubble, and in light weight, good heat-insulation effect has higher mechanical strength.3, on resonant cavity and four intake elbows, be equipped with stiffening rib, increased the structural strength of intake manifold, can effectively prevent distortion.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified;

Fig. 1 is a structural representation one of the present utility model;

Fig. 2 is a structural representation two of the present utility model;

Fig. 3 is the side view of Fig. 1;

The number in the figure explanation:

1-resonant cavity 2-intake elbow 3-fitting seat 4-inlet hole 5-air outlet hole.

Embodiment

In conjunction with Fig. 1 to Fig. 3 motor car engine plastic air intake manifold of the present utility model is described, it is by resonant cavity 1, four intake elbows 2 and fitting seat 3 constitute side by side.Intake elbow 2 upper ends are communicated with resonant cavity 1, its lower end is communicated with fitting seat 3.Four intake elbows 2 are parallel to each other, and the same cross section of four intake elbows 2 has equivalent diameter under the same projection condition, and are level and smooth closed hoop curves, and this makes that engine charge is more even, pressure is more stable, has improved the air inlet charge.The length of four intake elbows 2 is 400 ± 15mm; The internal orifice dimension of the inlet hole 4 of resonant cavity 1 is φ 50 ± 5mm; The distance of shaft centers of 5 of adjacent two air outlet holes of four air outlet holes 5 is from being 91.8mm ± 3mm on the fitting seat 3.

The member of the every part of intake manifold all can be by the PA66 plastics single injection-molded of glass fibre enhancing, and the member precision is good, need not secondary operations, low cost of manufacture, and good, in light weight, the inner air flue of intensity is smooth.In addition, plastic air intake manifold has improved gas fluidity, has improved gas flow and intake efficiency, has improved engine combustion efficiency, and plays and reduce vibration, reduces noise, improves the effect of the overall performance of motor.

Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; be in order to make those skilled in the art can better understand this patent content; should not be construed as is restriction to this patent protection domain; change or modify so long as disclose spiritual any being equal to of being done, all fall into this patent protection domain according to this patent.

Claims

1. motor car engine plastic air intake manifold, it is made of resonant cavity (1), four intake elbows (2) and fitting seat (3), one end of intake elbow (2) is communicated with resonant cavity (1), the other end of intake elbow (2) is communicated with fitting seat (3), resonant cavity (1) is provided with inlet hole (4), be shaped on the fitting seat (3) respectively and corresponding four air outlet holes of four intake elbows (2) (5), it is characterized in that:

A. described four intake elbows (2) length is 400 ± 15mm;

The internal orifice dimension of the inlet hole (4) of b. described resonant cavity (1) is φ 50 ± 5mm;

Distance of shaft centers between adjacent two air outlet holes (5) of last four air outlet holes of c. described fitting seat (3) (5) is from being 91.8mm ± 3mm.

2. plastic air intake manifold according to claim 1 is characterized in that: be equipped with stiffening rib on described resonant cavity (1) and four intake elbows (2).