Novel EGR (Exhaust Gas Recirculation) arranged intake manifold assembly

Abstract

The utility model discloses a novel EGR (Exhaust Gas Recirculation)-arranged intake manifold assembly, and belongs to the technical field of automobile engines. Comprising an assembly body, an EGR flange of the assembly body is arranged on the side face of a pressure stabilizing cavity of the assembly body and close to an air inlet, and the EGR flange is communicated with the air inlet through an EGR channel. And the EGR channel is a channel formed in the assembly body. And the air inlet is communicated with the four air passages of the assembly body. And the air inlet is formed among the four air channels. In a narrow space, the EGR port is directly connected to the gas inlet, uniform gas inlet of fresh gas flow is guaranteed, namely uniform distribution of EGR gas is guaranteed, meanwhile, the problem of reasonable arrangement of EGR ports and channels under the condition that the boundary of an engine is narrow is solved, EGR uniformity is improved, and the EGR rate is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile engines, and in particular relates to an intake manifold assembly with a novel EGR arrangement. Background Art

[0002] The layout of the EGR interface on the intake manifold is crucial to the EGR rate and EGR uniformity, but in fact the engine layout is compact and it is difficult to have enough space to arrange the EGR system. How to reasonably arrange the EGR in a limited space is particularly important and is also a technical problem that needs to be solved urgently in this field.

[0003] In addition, the design of the intake manifold must consider both the intake uniformity of the fresh gas and the intake uniformity of the EGR gas. It is difficult to achieve the ideal effect in a small space. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides an intake manifold assembly with a novel EGR arrangement.

[0005] The technical solution adopted by the utility model is:

[0006] A novel intake manifold assembly with EGR arrangement includes a main body, wherein an EGR flange of the main body is arranged on the side of a pressure stabilizing chamber of the main body and is arranged close to an air inlet, and the EGR flange is connected to the air inlet through an EGR channel.

[0007] Furthermore, the EGR channel 4 is a channel opened inside the overall body.

[0008] Furthermore, the air inlet is communicated with four air passages of the entire body.

[0009] Furthermore, the air inlet is arranged between the four airways.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model directly connects the EGR port to the air intake port in a narrow space, thereby ensuring uniform intake of fresh airflow, namely, uniform distribution of EGR gas, and solving the problem of reasonably arranging EGR interfaces and channels when the engine boundary is narrow, thereby improving EGR uniformity and increasing the EGR rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main schematic diagram of the utility model;

[0013] Figure 2 It is an axonometric drawing of the utility model;

[0014] Figure 3This is a cross-sectional view of the EGR channel of the utility model;

[0015] Among them: 1. EGR flange; 2. Pressure stabilizing chamber; 3. Air intake; 4. EGR channel; 5. Air duct. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0017] The EGR gas is mixed evenly with the fresh airflow at the intake port of the intake manifold, and the EGR uniformity and EGR rate are optimal, so the EGR port is arranged as close to the intake port on the intake manifold as possible. In the actual layout, both the assemblability of the intake manifold and the layout of each installation point must be considered. The layout is compact and the EGR layout is difficult.

[0018] Since there is no space to arrange the EGR port near the intake port of the intake manifold, the EGR flange 1 is arranged on the side of the pressure stabilizing chamber 2, and the EGR channel 4 is designed and connected to the intake port 3, and the intake port 3 is evenly distributed with the fresh air flow to the four air passages of the intake manifold assembly. The EGR gas passes through the EGR inlet 1, through the channel 4, and flows into the intake port 3, where it meets the fresh air and is evenly distributed to the four air passages 5.

[0019] Wherein: the EGR channel 4 is a channel opened inside the overall body.

[0020] The air inlet 3 is communicated with four air passages 5 of the entire body.

[0021] The air inlet 3 is arranged between the four air passages 5 .

[0022] The utility model introduces the exhaust gas from the EGR valve into the interior of the intake manifold from the vicinity of the intake port of the intake manifold. The space near the throttle valve is limited and the EGR flange cannot be arranged. It is necessary to arrange the EGR flange 1 on the side of the pressure stabilizing chamber, and transport the gas to the intake port 3 of the manifold assembly through the internal channel EGR channel 4.

[0023] It can be seen from the table below that the EGR uniformity when the EGR gas flows directly into the intake port is better than the EGR uniformity when the EGR is arranged at other positions.

[0024]

[0025] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A novel intake manifold assembly with EGR arrangement, comprising an overall body, characterized in that: The EGR flange (1) of the overall body is arranged on the side of the pressure stabilizing chamber (2) of the overall body and is disposed close to the air inlet (3). The EGR flange (1) is connected to the air inlet (3) through an EGR channel (4).

2. The novel intake manifold assembly with EGR arrangement according to claim 1 is characterized in that: The EGR passage (4) is a passage opened inside the main body.

3. The novel intake manifold assembly with EGR arrangement according to claim 1 is characterized in that: The air inlet (3) is in communication with four air passages (5) of the entire body.

4. A novel intake manifold assembly with EGR arrangement according to claim 1 or 3, characterized in that: The air inlet (3) is arranged between the four airways (5).

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