Respirator structure of diesel engine

Abstract

The utility model discloses a diesel engine respirator structure which comprises a support body and a side support, the support body is connected with the side support through a reinforcing rib, the support body is connected with a respirator cover through a connecting bolt and a connecting nut, an exhaust hole is formed in the support body, and an air inlet hole is formed below the exhaust hole. An exhaust one-way valve is arranged on the support body and located at the exhaust hole, an air inlet one-way valve is arranged on the support body and located at the air inlet, a respirator cover is arranged on the end face of one side of the support body, the exhaust one-way valve is arranged on the inner side of the respirator cover, and the air inlet one-way valve is arranged on the inner side of the respirator cover. According to the engine oil breather, the functions of separating an air inlet path from an air outlet path, reducing discharge of engine oil, doubly filtering dust and preventing the dust from polluting the engine oil are achieved.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine technology, specifically a diesel engine breather structure. Background Technology

[0002] A diesel engine, also known as a diesel fuel engine, is an engine that uses diesel fuel to generate energy. It was invented by a German inventor in 1892. To commemorate this inventor, diesel fuel is named after his surname, Diesel, and the diesel engine is also called a Diesel engine. Diesel engines are equipped with a breather, which is an important component of the engine. Typically, the breather uses the same air passage for both intake and exhaust. This structure can lead to a lot of oil accumulating and being discharged during intake and exhaust. In addition, dust can enter and mix with the engine oil during intake, contaminating the engine oil.

[0003] Therefore, the inventor sought to solve the problem of designing a device that separates the intake and exhaust air paths, reduces oil discharge, and provides dual dust filtration to prevent dust from contaminating the oil. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a diesel engine breather structure that can separate the intake and exhaust air paths, reduce the discharge of engine oil, and provide dual filtration of dust to prevent dust from contaminating the engine oil.

[0005] The technical solution adopted by this utility model device is as follows: a diesel engine breather structure, including a support body and a side support. The support body is connected to the side support through reinforcing ribs. The support body is connected to a breather cover by connecting bolts and connecting nuts. An exhaust hole is provided on the support body, and an air inlet is provided below the exhaust hole. An exhaust one-way valve is provided on the support body at the exhaust hole, and an air inlet one-way valve is provided on the support body at the air inlet. A breather cover is provided on one side end face of the support body. The exhaust one-way valve is located inside the breather cover, and the air inlet one-way valve is located inside the breather cover. An air inlet and exhaust bend is connected to the upper end of the breather cover. Three cross-distributed labyrinth partitions are provided on the inner side of the breather cover. Slots are provided on the side walls of the two upper labyrinth partitions on opposite sides. A filter screen is provided inside the slots. A labyrinth passage is formed between the labyrinth partitions.

[0006] Furthermore, the air intake is connected to the labyrinth passage.

[0007] Furthermore, the air intake is located at the lowest end of the labyrinth passage.

[0008] Furthermore, the ends of the maze partition are provided with upwardly protruding edges.

[0009] Furthermore, the vent is connected to the labyrinth passage via a one-way vent valve.

[0010] Furthermore, the exhaust check valve allows gas to enter the respirator cover sequentially through the exhaust port and the exhaust check valve.

[0011] Furthermore, the one-way valve allows gas to pass sequentially from inside the respirator cover through the air inlet and the one-way valve.

[0012] Furthermore, the main body of the bracket is provided with mounting holes for installing connecting bolts.

[0013] The beneficial effects of this utility model device are:

[0014] 1. This utility model separates the air intake and exhaust ports and restricts them with two one-way valves to achieve the purpose of separating the intake and exhaust air paths, thereby reducing the amount of engine oil discharged through the intake and exhaust process. At the same time, it adopts a breather cover with a labyrinth air path and a filter screen to filter and screen the air entering the breather cover, reducing the chance of dust entering the engine oil with the intake air. It realizes the function of separating the intake and exhaust air paths, reducing the discharge of engine oil, and double filtering of dust to prevent dust from contaminating the engine oil. Attached Figure Description

[0015] Figure 1 This is a structural view of the present invention.

[0016] Figure 2 This is a side view of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1-Main body of the support frame; 2-Side support frame; 3-Connecting nut; 4-Connecting bolt; 5-Mounting hole; 6-Respirator cover; 7-Inlet and outlet bend; 8-Reinforcing rib; 9-Exhaust check valve; 10-Exhaust port; 11-Maze partition; 12-Slot; 13-Filter screen; 14-Edge; 15-Inlet check valve; 16-Inlet port; 17-Respirator cover. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] Example 1: See Figures 1 to 2This is a structural view and side view of the present invention, which describes a diesel engine breather structure, including a support body 1 and a side support 2. The support body 1 is connected to the side support 2 through a reinforcing rib 8. The support body 1 is connected to a breather cover 17 by connecting bolts 4 and connecting nuts 3. An exhaust port 10 is provided on the support body 1, and an air inlet port 16 is provided below the exhaust port 10, separating the exhaust port 10 and the air inlet port 16 so that they do not interfere with each other. An exhaust one-way valve 9 is provided on the support body 1 at the exhaust port 10, and an air inlet one-way valve 15 is provided on the support body 1 at the air inlet port 16. With the cooperation of the two one-way valves, the air inlet and exhaust paths are completely separated.

[0020] A respirator cover 6 is provided on one side of the support body 1. An inlet / outlet bend 7 is connected to the upper end of the respirator cover 6. Three intersecting labyrinth partitions 11 are provided on the inner side of the respirator cover 6. Slots 12 are provided on the sidewalls of the two upper labyrinth partitions 11 opposite to each other. A filter screen 13 is provided inside the slots 12. A labyrinth passage is formed between the labyrinth partitions 11. An exhaust one-way valve 9 is located inside the respirator cover 6, and an inlet one-way valve 15 is located inside the respirator hood 17. An air inlet 16 is connected to the labyrinth passage and is located at the lowest end of the labyrinth passage. The inlet one-way valve 15 allows gas to pass sequentially from inside the respirator cover 6 through the air inlet and the inlet one-way valve 15, and then exhausts. The port 10 is connected to the labyrinth passage via the exhaust check valve 9. The exhaust check valve 9 allows gas to enter the inside of the breather cover 6 through the exhaust port 10 and the exhaust check valve 9 in sequence. When the breather is venting, the waste gas enters the breather cover 6 through the exhaust port 10 and the exhaust check valve 9, and finally leaves through the intake and exhaust bend 7. When the breather is taking in air, the gas enters the inside of the breather cover 6 through the intake and exhaust bend 7. The gas first hits the side wall of the labyrinth passage, and some dust is left on the side wall. When the gas enters the labyrinth passage, it is filtered by the filter screen 13. Through the dual filtration and blocking effect of the labyrinth passage and the filter screen 13, the probability of dust entering the engine oil through the intake port 16 and the intake check valve 15 is reduced.

[0021] To prevent some of the oil from entering the respirator cover 6, the labyrinth partition 11 has an upwardly protruding edge 14 at its end.

[0022] The main body 1 of the bracket has mounting holes 5 for installing connecting bolts 4.

[0023] This invention distinguishes between the air intake port 16 and the exhaust port 10, and restricts them with two one-way valves to separate the intake and exhaust air paths, thereby reducing the amount of engine oil discharged during the intake and exhaust process. At the same time, a breather cover 6 with a labyrinth air path is used in conjunction with a filter screen 13 to filter and screen the air entering the breather cover 6, reducing the chance of dust entering the engine oil with the intake air. This achieves the functions of separating the intake and exhaust air paths, reducing the discharge of engine oil, and double filtering of dust to prevent dust from contaminating the engine oil.

Claims

1. A diesel engine breather structure, comprising a support body (1) and a side support (2), wherein the support body (1) is connected to the side support (2) via reinforcing ribs (8), and a breather cover (17) is connected to the support body (1) via connecting bolts (4) and connecting nuts (3), characterized in that: The support body (1) is provided with an exhaust hole (10), and an air inlet (16) is provided below the exhaust hole (10). An exhaust one-way valve (9) is provided on the support body (1) at the exhaust hole (10), and an air inlet one-way valve (15) is provided on the support body (1) at the air inlet (16). A respirator cover (6) is provided on one side end face of the support body (1). The exhaust one-way valve (9) is located inside the respirator cover (6), and the air inlet one-way valve (15) is located inside the respirator hood (17). An air inlet and exhaust bend (7) is connected to the upper end of the respirator cover (6). Three cross-distributed labyrinth partitions (11) are provided on the inner side of the respirator cover (6). Slots (12) are provided on the side walls of the two labyrinth partitions (11) located above each other. A filter screen (13) is provided inside the slots (12). A labyrinth passage is formed between the labyrinth partitions (11).

2. The structure of a diesel engine breather according to claim 1, characterized in that: The air inlet (16) is connected to the labyrinth passage.

3. The structure of a diesel engine breather according to claim 2, characterized in that: The air inlet (16) is located at the bottom of the maze passage.

4. The structure of a diesel engine breather according to claim 1, characterized in that: The end of the labyrinth partition (11) is provided with an upwardly protruding edge (14).

5. The structure of a diesel engine breather according to claim 1, characterized in that: The vent (10) is connected to the labyrinth passage via the vent check valve (9).

6. The structure of a diesel engine breather according to claim 5, characterized in that: The exhaust check valve (9) allows gas to enter the inside of the respirator cover (6) sequentially through the exhaust port (10) and the exhaust check valve (9).

7. The structure of a diesel engine breather according to claim 2, characterized in that: The one-way valve (15) allows gas to pass through the inlet and the one-way valve (15) sequentially from inside the respirator cover (6).

8. The structure of a diesel engine breather according to claim 1, characterized in that: The bracket body (1) has mounting holes (5) for mounting connecting bolts (4).

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