Intake manifold integrated with PCV (Poly Vinyl Chloride) pipe

Abstract

The utility model discloses an intake manifold integrated with a PVC (polyvinyl chloride) pipe. The intake manifold integrated with the PCV pipe comprises an intake manifold body and a PCV pipeline, the intake manifold body is hollow, one end of the intake manifold body is provided with an air inlet, the intake branch pipes are arranged on the shell body in parallel and communicated with the shell body, and the PCV pipeline is arranged on the shell body and communicated with the shell body. The PCV pipeline and the shell body are integrally formed. The PVC pipeline is arranged, so that gas flow in the crankcase can be guided into the intake manifold through the PVC pipe; according to the intake manifold, the PCV pipeline and the shell body in the intake manifold are integrally formed, so that the PCV pipeline is integrated on the intake manifold, the situation that an additional hose needs to be used for guiding air is avoided, the whole structure is compact, and the occupied space of an internal combustion engine is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to an intake manifold with an integrated PCV pipe. Background Art

[0002] The main function of the engine's crankcase positive ventilation (PCV) pipe is to guide the gas in the crankcase into the intake manifold through the PCV pipe. The PCV pipe can avoid problems such as incomplete combustion, deteriorating emissions, and oil deterioration. Currently, after the external gas passes through the PCV pipe, an additional ventilation hose needs to be arranged outside the engine to achieve the function of guiding the gas into the intake manifold, which greatly occupies limited space and increases costs. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide an intake manifold with an integrated PCV pipe to solve the technical problem of space occupied by the PCV pipe.

[0004] In order to achieve the above object, the utility model provides the following technical solution: an intake manifold with an integrated PCV pipe, comprising:

[0005] An intake manifold comprises a shell body which is hollow inside and has an air inlet at one end, and a plurality of intake branch pipes which are arranged in parallel on the shell body and communicated with the shell body, and;

[0006] A PCV pipe, disposed on the shell body and connected to the shell body;

[0007] The PCV pipe is integrally formed with the shell body.

[0008] Furthermore, a flange housing is provided at one end of each of the intake branch pipes, and an exhaust gas inlet is provided at a position of the flange housing corresponding to each of the intake branch pipes.

[0009] Further, one end of the PCV tube is arranged on the flange housing, and the other end of the PCV tube is arranged on the housing body.

[0010] Furthermore, a channel opening is provided on the flange housing, and the channel opening is communicated with one end of the PCV pipe.

[0011] Furthermore, the channel opening is arranged between two adjacent exhaust gas inlets.

[0012] Furthermore, the cross-section of the passage opening is any one of rectangular, diamond and square.

[0013] Further, a distribution pipe for changing the propagation path of the exhaust gas is provided at the air inlet. A gap for the exhaust gas to propagate is provided between the distribution pipe and the inner wall of the air inlet. A plurality of through holes for guiding the exhaust gas into the air inlet are provided on the distribution pipe.

[0014] Further, a through hole for communicating with the PCV pipe is provided at a position of the housing body close to the air inlet.

[0015] Further, the PCV pipe and the flange housing are integrally formed.

[0016] The beneficial effects of the present utility model are as follows: Compared with the prior art, in the intake manifold integrating the PCV pipe of the present utility model, by providing the PCV pipe, the gas flow in the crankcase can be introduced into the intake manifold through the PCV pipe; by integrally forming the PCV pipe with the housing body in the intake manifold, the PCV pipeline is integrated on the intake manifold, avoiding the need to use an additional hose for gas conduction, making the whole structure relatively compact and reducing the occupied space of the internal combustion engine.

[0017] Other advantages, objectives and features of the present utility model will be described in the subsequent specification, and to some extent, will be obvious to those skilled in the art, or those skilled in the art can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the objectives, technical solutions and beneficial effects of the present utility model clearer, the following drawings are provided for illustration:

[0019] Figure 1 It is a schematic structural diagram of an intake manifold integrating a PCV pipe from one perspective according to an embodiment of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of an intake manifold integrating a PCV pipe from another perspective according to an embodiment of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of an intake manifold integrating a PCV pipe from yet another perspective according to an embodiment of the present utility model.

[0022] Reference Numerals in the Drawings:

[0023] 1 - Intake manifold; 11 - Housing body; 12 - Intake branch pipe; 13 - Air inlet; 14 - Through hole;

[0024] 2 - PCV pipe;

[0025] 3 - Distribution pipe; 31 - Through hole;

[0026] 4 - Flange housing; 41 - Exhaust gas inlet; 42 - Channel opening. Specific embodiments

[0027] As Figures 1 to 3 shown, this embodiment proposes an intake manifold integrated with a PCV pipe, including an intake manifold 1 and a PCV pipeline 2. The intake manifold 1 includes a housing body 11, which is hollow inside and has an air inlet 13 at one end. A plurality of intake branch pipes 12 that are connected in parallel are arranged on the housing body 11. The PCV pipeline 2 is arranged on the housing body 11 and is connected to the housing body 11. In addition, the PCV pipeline 2 and the housing body 11 are integrally formed. In this way, by setting the PCV pipeline 2, the gas flow in the crankcase can be introduced into the intake manifold through the PCV pipe; by integrally forming the PCV pipeline 2 with the intake manifold 1 and the housing body 11, the PCV pipeline 2 is integrated on the intake manifold 1, avoiding the need to use an additional hose for gas conduction, making the entire structure relatively compact and reducing the occupied space of the internal combustion engine.

[0028] Preferably, the plurality of intake branch pipes 12 and the housing body 11 are integrally formed. By integral forming, on the one hand, subsequent machining can be reduced, and the processing cost can be lowered.

[0029] Furthermore, please refer to Figure 1 shown, a flange housing 4 is further provided at one end of each intake branch pipe. The flange housing 4 is provided with an exhaust gas inlet 41 corresponding to the position of each intake branch pipe 12. In this way, through the exhaust gas inlet 41, the exhaust gas generated by the engine can be introduced into the intake manifold 12.

[0030] Preferably, please refer to Figure 1 shown, one end of the PCV pipe 2 is arranged on the flange housing 4, and the other end of the PCV pipe 2 is arranged on the housing body 11. In this way, the gas transmitted externally can be directly introduced into the housing body 11 through the PCV pipe 2, which is fast and convenient, avoiding using an external ventilation hose to introduce the gas into the intake manifold 12. Of course, in the embodiment, according to the actual situation and specific requirements, the PCV pipe 2 can also be arranged side by side with the intake branch pipe 12, or in other position distributions, etc., which is not uniquely limited here.

[0031] Furthermore, please refer to Figure 2As shown, a channel opening 42 is provided on the flange housing 4, and the channel opening 42 is communicated with one end of the PCV pipe 2. Preferably, the PCV pipe 2 and the channel opening 42 form a right-angle channel. By setting it as a right-angle channel, on the one hand, external gas can be introduced into the housing body 11; on the other hand, setting it as a right angle is also convenient for processing and forming. Of course, in this embodiment, the PCV pipe 2 and the channel opening 42 can also be combined to form an arc-shaped channel, a wavy channel, a spiral channel, etc., which is not limited here.

[0032] Preferably, please refer to Figure 1 and Figure 2 As shown, the channel opening 42 is arranged between two adjacent exhaust gas inlets 41. The cross-section of the channel opening 42 is any one of a rectangle, a rhombus, and a square. Specifically, in this embodiment, the cross-section of the channel opening 42 is arranged in a rectangle.

[0033] Furthermore, please refer to Figure 3 As shown, a distribution pipe 3 is provided at the air inlet 13. There is a gap between the distribution pipe 3 and the inner wall of the air inlet 13. In addition, a plurality of through holes 31 are formed on the distribution pipe 3. In this way, by setting the distribution pipe 3, the exhaust gas propagation path can be changed; by having a gap between the distribution pipe 3 and the inner wall of the air inlet 13, the exhaust gas can propagate; by setting a plurality of through holes 31, the exhaust gas can be guided to slowly enter the air inlet 13 and be evenly mixed with fresh air.

[0034] Preferably, a through hole 14 is formed on the housing body 11 and is arranged at a position close to the air inlet 13. In this way, by setting the through hole 14, the PCV pipe 2 can be communicated with the housing body 11.

[0035] Preferably, the PCV pipe 2 and the flange housing 4 are integrally formed. In this application, integral forming can reduce the number of parts such as ventilation hoses, thereby reducing the weight of the overall structure, significantly reducing the assembly time and cost, and helping to improve fuel efficiency and performance.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An intake manifold integrated with a PCV pipe, characterized in that, Comprising: An intake manifold, including a housing body with a hollow interior and an intake port provided at one end, and a plurality of intake branch pipes arranged in parallel on the housing body and communicating with the housing body; and A PCV pipe, provided on the housing body and communicating with the housing body; The PCV pipe is integrally formed with the housing body; a flange housing is further provided at one end of each intake branch pipe, and an exhaust gas inlet is provided at a position corresponding to each intake branch pipe; a distribution pipe for changing the exhaust gas propagation path is provided at the intake port, a gap for exhaust gas propagation is provided between the distribution pipe and the inner wall of the intake port, and a plurality of through holes for guiding exhaust gas into the intake port are provided on the distribution pipe.

2. The intake manifold integrated with a PCV pipe according to claim 1, characterized in that , One end of the PCV pipe is provided on the flange housing, and the other end of the PCV pipe is provided on the housing body.

3. The intake manifold integrating a PCV pipe according to claim 1, characterized in that A channel port is provided on the flange housing, and the channel port is communicated with one end of the PCV pipe.

4. The intake manifold integrated with a PCV pipe according to claim 3, characterized in that, The channel port is provided between two adjacent exhaust gas inlets.

5. The intake manifold integrating a PCV pipe according to claim 3, characterized in that, The cross section of the channel port is any one of a rectangle, a rhombus, and a square.

6. The intake manifold integrating a PCV pipe according to claim 5, characterized in that, A through hole for communicating with the PCV pipe is provided at a position of the housing body close to the intake port.

7. The intake manifold integrated with a PCV pipe according to claim 1, characterized in that, The PCV pipe is integrally formed with the flange housing.

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