Exhaust device for engine cylinder cover

Abstract

The utility model provides an exhaust device for an engine cylinder cover, and belongs to the technical field of engines. An exhaust device for an engine cylinder cover comprises an exhaust pipe, an air inlet and an air outlet are fixed to the exhaust pipe, and a ventilation assembly is arranged in the exhaust pipe. The air exchange assembly comprises a sliding block sliding in the exhaust pipe, supporting rods are fixed to the two sides of the sliding block, two symmetrically-arranged sealing pieces are further arranged in the exhaust pipe in a sliding mode, and the sealing pieces and the supporting rods abut against the sealing pieces. Waste gas in the air cylinders is alternately exhausted, mutual mixing of the waste gas in the two air cylinders is effectively avoided, and if incomplete combustion of the gas in the air cylinders occurs, more carbon deposition can be generated, blockage in the other half of the air cylinders can be avoided at least, and meanwhile the inner wall of the other half of the air cylinders cannot be damaged.

Description

Technical Field

[0001] The utility model belongs to the field of engines, and in particular relates to an exhaust device for an engine cylinder cover. Background Art

[0002] The exhaust gas after combustion in the engine cylinder needs to be discharged through the exhaust pipe. Nowadays, the exhaust pipes are interconnected. When the gas inside one of the cylinders is not completely burned, it will cause serious carbon deposits in the entire exhaust pipe system. Incomplete combustion is prone to deflagration, damaging the cylinder wall, affecting the engine efficiency and life, and causing damage to the entire engine cylinder. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides an exhaust device for an engine cylinder head.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: an exhaust device for an engine cylinder head, comprising an exhaust pipe, characterized in that: an air inlet and an air outlet are fixed on the exhaust pipe, and a ventilation component is arranged inside the exhaust pipe;

[0005] The ventilation assembly includes a slider sliding in the exhaust pipe, support rods are fixed on both sides of the slider, and two symmetrically arranged sealing sheets are also slidably provided in the exhaust pipe, and the support rods abut against the sealing sheets.

[0006] Optionally, a working chamber is provided inside the exhaust pipe, two air inlets are provided, the air outlet is located on the opposite side of the air inlet, the air outlet is also located between the two air inlets, and the slider blocks the air outlet.

[0007] Optionally, the sealing sheet is fixed to the inner wall of the working chamber via a sealing spring, and the sealing sheet is located on a side of the air inlet away from the air outlet.

[0008] Optionally, a one-way groove is opened in the air inlet, and a one-way sealing block is installed in the one-way groove via a one-way spring, and the one-way sealing block blocks the air inlet.

[0009] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. Due to the setting of the ventilation component, the two groups of cylinders can be completely isolated, so that the exhaust gas in the cylinders can be discharged alternately, which effectively avoids the exhaust gas in the two cylinders from mixing with each other. If the gas in the cylinder is not completely burned, more carbon deposits will be produced. At least the other half of the cylinder will not be blocked and the inner wall of the other half of the cylinder will not be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model.

[0012] Figure 2 It is a cross-sectional view of the utility model.

[0013] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0014] 10. Exhaust pipe; 11. Air inlet; 12. Air outlet; 13. Slider; 14. Support rod; 15. Sealing sheet; 16. Sealing spring; 17. One-way sealing block; 18. Working chamber; 19. One-way groove. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0016] As shown in Figure 1-3, an exhaust device for an engine cylinder head includes an exhaust pipe 10, an air inlet 11 and an air outlet 12 are fixed on the exhaust pipe 10, a one-way groove 19 is opened in the air inlet 11, a one-way sealing block 17 is installed in the one-way groove 19 through a one-way spring, the one-way sealing block 17 blocks the air inlet 11, a ventilation component is provided inside the exhaust pipe 10, the ventilation component includes a slider 13 sliding in the exhaust pipe 10, support rods 14 are fixed on both sides of the slider 13, two symmetrically arranged sealing sheets 15 are also slidably provided in the exhaust pipe 10, the support rods 14 abut against the sealing sheets 15, the sealing sheets 15 are fixed to the inner wall of the working chamber 18 through the sealing spring 16, and the sealing sheets 15 are located on the side of the air inlet 11 away from the air outlet 12.

[0017] A working chamber 18 is provided inside the exhaust pipe 10 . Two air inlets 11 are provided. The air outlet 12 is located on the opposite side of the air inlet 11 . The air outlet 12 is also located between the two air inlets 11 . The slider 13 blocks the air outlet 12 .

[0018] When in use, the air inlet 11 is connected to the exhaust pipe inside the engine. The engine cylinders are generally arranged in two rows, and the exhaust gas in the cylinders will be discharged alternately. When the cylinder on one side is exhausted, it will abut against the one-way sealing block 17 to stretch the one-way spring, so that the gas enters the working chamber 18, and the slider 13 divides the working chamber 18 into two parts. The internal air pressure of the exhaust part increases, which will squeeze the slider 13 to move to the other side where the exhaust is not exhausted. At the same time, the sealing sheets 15 on both sides will compress the sealing spring 16. The sealing sheet 15 close to the exhaust is compressed by the air pressure, and the sealing sheet 15 far away from the exhaust is abutted and squeezed by the support rod 14 driven by the slider 13 until the slider 13 moves to the exhaust. The air port 12 is connected to the working chamber 18. At this time, the gas inside the working chamber 18 on the exhaust side will enter the air outlet 12 and be discharged, and then its air pressure returns to normal. Under the elastic force of the sealing spring 16, the slider 13 blocks the air outlet 12 again to prevent waste gas backflow, and the one-way sealing block 17 is set to further prevent exhaust gas backflow. Then the cylinder on the other side is exhausted. As mentioned above, the exhaust gas in the cylinder is discharged alternately, which effectively prevents the exhaust gas in the two cylinders from mixing with each other. If the gas in the cylinder is not completely burned, more carbon deposits will be produced. At least the other half of the cylinder can be prevented from being blocked and the inner wall of the other half of the cylinder will not be damaged.

[0019] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. An exhaust device for an engine cylinder head, comprising an exhaust pipe (10), characterized in that: An air inlet (11) and an air outlet (12) are fixed on the exhaust pipe (10), and a ventilation component is provided inside the exhaust pipe (10); The ventilation assembly comprises a slider (13) sliding in the exhaust pipe (10), support rods (14) being fixed on both sides of the slider (13), and two symmetrically arranged sealing sheets (15) are also slidably arranged in the exhaust pipe (10), and the support rods (14) abut against the sealing sheets (15).

2. An exhaust device for an engine cylinder head according to claim 1, characterized in that: A working chamber (18) is provided inside the exhaust pipe (10), two air inlets (11) are provided, the air outlet (12) is located on the opposite side of the air inlet (11), and the air outlet (12) is also located between the two air inlets (11), and the slider (13) blocks the air outlet (12).

3. An exhaust device for an engine cylinder head according to claim 2, characterized in that: The sealing sheet (15) is fixed to the inner wall of the working chamber (18) via a sealing spring (16), and the sealing sheet (15) is located on a side of the air inlet (11) away from the air outlet (12).

4. The exhaust device for an engine cylinder head according to claim 1, characterized in that: A one-way groove (19) is provided in the air inlet (11), a one-way sealing block (17) is installed in the one-way groove (19) via a one-way spring, and the one-way sealing block (17) blocks the air inlet (11).

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