EGR (Exhaust Gas Recirculation) valve arrangement structure capable of realizing quick response

Abstract

The utility model discloses an EGR valve arrangement structure capable of achieving quick response, and belongs to the technical field of automobile engines. The response problem is solved through arrangement, and meanwhile oil consumption can be reduced. An outlet of the EGR cooler is directly connected with one end of the EGR valve, the other end of the EGR valve is directly connected with a pipe opening of the three-way adapter, a second pipe opening of the three-way adapter is directly connected with the air inlet mixing valve, and a third pipe opening of the three-way adapter is directly connected with the turbocharger. The EGR valve is directly connected with the EGR cooler and the adapter, the adapter is of a three-way structure and is respectively connected with the EGR valve, the turbocharger and the air inlet mixing valve, no pipeline is arranged in the three-way structure, the arrangement structure is compact, space is saved, waste gas and fresh air directly enter the turbocharger after being mixed, and the arrangement mainly depends on the air inlet mixing valve to generate negative pressure. The EGR flow is guaranteed by guaranteeing enough pressure difference, no pipeline exists in the middle, pressure loss does not exist, it can be guaranteed that the EGR flow is sufficient to the maximum extent, meanwhile, the arrangement requirement is met, rapid response of internal gas needs to be guaranteed, and the minimum oil consumption can be achieved to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile engines, and in particular relates to an EGR valve arrangement structure for achieving rapid response. Background Art

[0002] In response to increasingly stringent fuel consumption requirements, cooled EGR technology has become the preferred fuel consumption reduction strategy for gasoline engines. Due to the increasingly compact design requirements of engine structures, layout has become a difficulty. Therefore, providing a layout structure that can save space and reduce fuel consumption is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0003] The purpose of the utility model is to provide an EGR valve arrangement structure that achieves rapid response, which is applied to new energy gasoline engines, solves the response problem through the arrangement, and can reduce fuel consumption at the same time.

[0004] The technical solution adopted by this utility model is:

[0005] An EGR valve arrangement structure for achieving rapid response includes an EGR cooler, an EGR valve, a turbocharger, a three-way adapter, and an intake mixing valve; the outlet of the EGR cooler is directly connected to one end of the EGR valve, the other end of the EGR valve is directly connected to a pipe opening of the three-way adapter, a second pipe opening of the three-way adapter is directly connected to the intake mixing valve, and a third pipe opening of the three-way adapter is directly connected to the turbocharger.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] The EGR valve of the utility model is directly connected to the EGR cooler and the adapter seat. The adapter seat is a three-way structure, which is respectively connected to the EGR valve, turbocharger and intake mixing valve, without any pipeline connection in the middle. The arrangement is compact and saves space. The exhaust gas and fresh air are mixed and directly enter the turbocharger. This arrangement mainly relies on the intake mixing valve to generate negative pressure to ensure sufficient pressure difference to ensure EGR flow. There is no pipeline in the middle, so there is no pressure loss, which can maximize the guarantee of sufficient EGR flow. At the same time, it meets the arrangement requirements and ensures that the internal gas responds quickly, which can maximize the lowest fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Among them: 1. EGR cooler; 2. EGR valve; 3. Turbocharger; 4. Three-way adapter; 5. Intake mixing valve. DETAILED DESCRIPTION

[0010] In order to better understand the purpose, structure and function of the present invention, the present invention is described in further detail below with reference to the accompanying drawings.

[0011] like Figure 1 As shown, the utility model provides an EGR valve arrangement structure for achieving rapid response, comprising an EGR cooler 1, an EGR valve 2, a turbocharger 3, a three-way adapter 4 and an intake mixing valve 5; the outlet of the EGR cooler 1 is directly connected to one end of the EGR valve 2, the other end of the EGR valve 2 is directly connected to the pipe mouth of the three-way adapter 4, the pipe mouth 2 of the three-way adapter 4 is directly connected to the intake mixing valve 5, and the pipe mouth 3 of the three-way adapter 4 is directly connected to the turbocharger 3.

[0012] The intake mixing valve 5 introduces fresh air through a pipeline.

[0013] The EGR cooler 1 is connected to the engine cylinder via a pipeline to introduce exhaust gas generated by the engine cylinder.

[0014] The air outlet of the turbocharger 3 is used to introduce the mixed gas into the intake manifold.

[0015] The exhaust gas enters the EGR valve 2 through the EGR cooler 1. The EGR valve 2 adjusts the opening to control the exhaust gas and introduces the exhaust gas into the three-way adapter 4. The intake mixing valve 5 adjusts the pressure difference to ensure sufficient exhaust gas flow. At the same time, fresh air enters the three-way adapter 4 through the intake mixing valve 5. The exhaust gas and fresh air are directly mixed in the three-way adapter 4. The three-way adapter 4 is directly connected to the turbocharger 3. The mixed gas directly enters the turbocharger 3. The relevant parts are directly connected to the three-way adapter 4. There are no related pipelines. The gas path is extremely short and there is no pressure loss. The exhaust gas directly enters the intake manifold through the turbocharger 3.

[0016] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate 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. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit 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 intended to be protected by the present invention.

Claims

1. An EGR valve arrangement structure for achieving rapid response, characterized by: The invention comprises an EGR cooler (1), an EGR valve (2), a turbocharger (3), a three-way adapter (4) and an intake mixing valve (5); the outlet of the EGR cooler (1) is directly connected to one end of the EGR valve (2), the other end of the EGR valve (2) is directly connected to the pipe opening of the three-way adapter (4), the pipe opening 2 of the three-way adapter (4) is directly connected to the intake mixing valve (5), the pipe opening 3 of the three-way adapter (4) is directly connected to the turbocharger (3), and the air outlet of the turbocharger (3) is used to introduce the mixed gas into the intake manifold.

2. The EGR valve arrangement structure for achieving rapid response according to claim 1, characterized in that: The intake mixing valve (5) introduces fresh air through a pipeline.

3. The EGR valve arrangement structure for achieving rapid response according to claim 1, characterized in that: The EGR cooler (1) is connected to the engine cylinder via a pipeline, and introduces exhaust gas generated by the engine cylinder.

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