Improved respirator for diesel engine

Abstract

The improved respirator for the diesel engine comprises an upper shell, a lower shell, two air inlet pipes and two exhaust pipes, the lower shell is provided with an upper cavity and a lower cavity, the upper cavity and the lower cavity are communicated through a filter screen, and two air outlets are formed in the positions, corresponding to the upper cavity, of the top of the lower shell; the upper shell is provided with two air inlet cavities in parallel, the upper part of the upper shell is provided with two groups of oil-gas separation mechanisms and two exhaust cavities corresponding to the two air inlet cavities, each group of oil-gas separation mechanism comprises at least one filter, an inlet of the filter in each group of oil-gas separation mechanism is communicated with the corresponding air inlet cavity, and an outlet of the filter in each group of oil-gas separation mechanism is communicated with the corresponding exhaust cavity; and the side wall of the upper shell is respectively provided with an exhaust port corresponding to the two exhaust cavities. The invention can greatly improve the oil mist precipitation rate in the diesel engine exhaust gas, improve the filtering effect, reduce the engine oil consumption of the diesel engine, optimize the performance of the diesel engine, save the cost, reduce the lubricating oil entering the engine to participate in combustion, and reduce the environmental pollution caused by the emission of the diesel engine.

Description

Technical Field

[0001] The invention belongs to the technical field of diesel engine respirators, and in particular relates to an improved diesel engine respirator. Background Art

[0002] The diesel engine consumes a large amount of lubricating oil, and the respirator has low filtering efficiency. The lubricating oil and gas pass through the respirator, but the oil and gas are not completely separated and re-enter the combustion chamber to burn. At present, the respirator adopts a structure filled with a filter mesh. The mixed gas of air and exhaust gas passes through the separator, and the larger particle size of the lubricating oil suspended in the mixed gas is separated by the filter mesh and returned to the crankcase along the respirator shell. However, the respirator with the metal filling mesh structure does not separate the oil and gas completely, and it is difficult to separate the fine lubricating oil gas. The fine lubricating oil gas will enter the turbocharger through the exhaust pipe connected to the separator outlet, and then enter the combustion chamber for combustion, resulting in the problem of lubricating oil combustion. Summary of the invention

[0003] In view of this, the present invention aims to provide an improved diesel engine breather to solve the problems of low lubricating oil-gas separation efficiency and lubricating oil combustion.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] An improved diesel engine respirator comprises an upper shell, a lower shell, two air inlet pipes and two exhaust pipes, wherein the upper shell and the lower shell are connected and fixed;

[0006] The lower shell is provided with an upper chamber and a lower chamber, the upper chamber and the lower chamber are connected through a filter screen, the lower shell is provided with an air inlet port corresponding to the lower chamber, two air inlet pipes are connected and connected to the air inlet port, and two air outlets are provided at the top of the lower shell corresponding to the upper chamber;

[0007] The upper shell body is provided with two air inlet cavities in parallel, and two air inlets are provided at the bottom of the upper shell body corresponding to the two air inlet cavities. The two air inlets are directly opposite to and connected with the two air outlets of the lower shell body. Two groups of oil-gas separation mechanisms and two exhaust cavities are provided at the upper part of the upper shell body corresponding to the two air inlet cavities. Each group of oil-gas separation mechanisms includes at least one filter. The filter inlet of each group of oil-gas separation mechanisms is connected with the corresponding air inlet cavity, and the filter outlet is connected with the corresponding exhaust cavity. An exhaust port is provided on the side wall of the upper shell body corresponding to the two exhaust cavities, and two exhaust pipes are connected with an exhaust port respectively.

[0008] Furthermore, an air intake channel is vertically arranged on one side of the lower shell, a lower port of the air intake channel is communicated with an air intake port of the lower chamber, and two air intake pipes are connected to an upper port of the air intake channel.

[0009] Furthermore, the upper portion of the lower chamber protrudes and is connected to a filter chamber, the filter chamber extends upward into the upper chamber, the lower portion of the upper chamber surrounds the cavity wall of the filter chamber, and the filter screen is vertically arranged on the cavity wall of the filter chamber.

[0010] Furthermore, the filter mesh is a metal mesh.

[0011] Furthermore, the two air intake pipes are arranged one on the left and one on the right;

[0012] The two exhaust chambers and two sets of oil-gas separation mechanisms are symmetrically arranged on the left and right sides of the upper shell body.

[0013] Furthermore, two filters are provided in each set of oil-gas separation mechanisms.

[0014] Furthermore, the filter is an asbestos mesh filter.

[0015] Furthermore, the bottom of the lower shell is arranged to the oil outlet.

[0016] Compared with the prior art, the improved diesel engine respirator of the present invention has the following advantages:

[0017] (1) The present invention can significantly increase the oil mist precipitation rate in diesel engine exhaust gas, improve the filtering effect, reduce the oil consumption of the diesel engine, optimize the performance of the diesel engine, save costs, reduce the amount of lubricating oil entering the engine to participate in combustion, and reduce the pollution of diesel engine emissions to the environment.

[0018] (2) The respirator described in the present invention is easy to implement and has low cost. In addition, the exposed filter is easier to repair and replace, which reduces replacement time and saves labor costs.

[0019] (3) The respirator described in the present invention is provided with two sets of oil-gas separation mechanisms, and two intake pipes and two exhaust pipes are correspondingly provided, so as to increase the ventilation volume and filtering capacity of the respirator. The respirator as a whole is arranged symmetrically on the left and right to ensure the balance and stability of the respirator during operation. At the same time, it can better separate the oil droplets in the exhaust gas, with significant filtering effect and reducing the oil combustion consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a front view of an improved diesel engine respirator according to an embodiment of the present invention;

[0022] Figure 2 A top view of an improved diesel engine respirator according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A enlarged view in;

[0024] Figure 4 for Figure 1 AA view;

[0025] Figure 5 Schematic diagram of the three-dimensional structure of the upper shell in the present invention

[0026] Description of reference numerals:

[0027] 1-lower shell; 11-lower chamber; 111-filter chamber; 12-inlet channel; 13-upper chamber; 2-inlet pipe; 3-exhaust pipe; 4-filter; 5-filter screen; 6-upper shell; 61-inlet port; 62-exhaust port; 63-exhaust chamber position. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an improved respirator for a diesel engine comprises an upper shell 6, a lower shell 1, two air inlet pipes 2 and two exhaust pipes 3, wherein the upper shell 6 is located above the lower shell 1 and is fixed by screw connection.

[0030] An upper chamber 13 and a lower chamber 11 are arranged in the lower shell 1. The upper chamber 13 and the lower chamber 11 are independent. The upper part of the lower chamber 11 protrudes and is connected with a filter chamber 111. The filter chamber 111 extends upward into the upper chamber 13. The lower part of the upper chamber 13 surrounds the cavity wall of the filter chamber 111 and forms a cavity structure outside the cavity wall of the filter chamber 111. The cavity wall of the filter chamber 111 is vertically provided with a filter screen 5. The filter screen 5 is a metal mesh. The upper chamber 13 and the lower chamber 11 are connected through the filter screen 5. The lower chamber 11 is correspondingly provided with an air inlet port. An air inlet channel 12 is vertically arranged on one side of the lower shell 1. The lower port of the air inlet channel 12 is connected with the air inlet port of the lower chamber 11. Two air outlets are opened at the top of the lower shell 1. The two air outlets are arranged on the left and the right and are both connected with the upper chamber 13. Two intake pipes 2 are arranged on the left and the right, and are connected to the upper port of the intake channel 12. The distal ends of the two intake pipes 2 are respectively connected to the crankcase. The lubricating oil and gas from the crankcase enter the lower chamber through the two intake pipes 2. Since the intake pipe 2 is a tortuous and narrow pipe, the lubricating oil and gas will be separated in the process of flowing in the intake pipe 2, and the primary separation is achieved. The oil and gas after primary filtration enter the lower chamber 11, and then flow through the filter 5 into the upper chamber 13. In the process of flowing through the filter 5, the tiny oil droplets are blocked by the filter 5, and the secondary separation is achieved. The bottom of the lower shell 1 is set to the oil outlet, which is used to discharge the lubricating oil liquid after the secondary separation.

[0031] like Figure 5 As shown, two air inlet cavities (not shown in the figure) are arranged side by side in the upper shell 6, one on the left and one on the right. Two air inlet ports 61 are provided at the bottom of the upper shell 6 corresponding to the two air inlet cavities, that is, one air inlet port 61 is provided corresponding to each air inlet cavity. The two air inlet ports 61 are directly opposite to and connected with the two air outlet ports of the lower shell 1. Two sets of oil-gas separation mechanisms and two exhaust cavities are provided at the upper part of the upper shell 6 corresponding to the two air inlet cavities. The positions of the exhaust cavities are shown in FIG. Figure 5As shown in the exhaust chamber position 63 of the upper shell, two exhaust chambers and two groups of oil-gas separation mechanisms are symmetrically arranged on the left and right sides of the upper shell 6. Each group of oil-gas separation mechanisms includes two filters 4. The filter 4 adopts an existing diesel filter, preferably an asbestos mesh filter, which is a prior art and is not described in detail here. In each group of oil-gas separation mechanisms, the two filters 4 are arranged in parallel, and the inlets are connected to the corresponding air intake chamber, and the outlets of the two filters 4 are connected to the corresponding exhaust chamber, that is, the two filters 4 in each group of oil-gas separation mechanisms are in a parallel connection relationship, and air is taken in by the corresponding air intake chamber at the same time, and the mixed gas is exhausted to the corresponding exhaust chamber at the same time after filtering. An exhaust port 62 is set on the side wall of the upper shell 6 corresponding to each of the two exhaust chambers, and the two exhaust pipes 3 are each connected to an exhaust port 62. The lubricating oil and gas from the upper chamber 13 are divided into two paths, one path enters an air intake cavity of the upper shell 6, and the other path enters another air intake cavity. One of the paths is now taken as an example: after the oil and gas enter the corresponding air intake cavity, they are finely filtered through the two filters 4 corresponding to the air intake cavity, and the oil and gas are separated in three stages. The gases filtered and separated by the two filters 4 are first collected in the exhaust cavity, and then sent back to the combustion chamber by the exhaust pipe 3 for combustion.

[0032] This respirator can realize primary, secondary and tertiary oil-gas separation, increase the oil mist precipitation rate in diesel engine exhaust gas, and improve the filtering effect. At the same time, this respirator adopts a detachable upper and lower split structure, the filter is arranged on the upper shell, and the filter net is installed on the lower shell. The exposed filter is easier to repair and replace, which reduces the replacement time and saves labor costs.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved respirator for a diesel engine, characterized in that: It comprises an upper shell (6), a lower shell (1), two air inlet pipes (2) and two air outlet pipes (3), wherein the upper shell (6) and the lower shell (1) are connected and fixed; The lower shell (1) is provided with an upper chamber (13) and a lower chamber (11); the upper chamber (13) and the lower chamber (11) are connected via a filter (5); an air inlet port is provided on the lower shell (1) corresponding to the lower chamber (11); two air inlet pipes (2) are connected and connected to the air inlet port; and two air outlets are provided on the top of the lower shell (1) corresponding to the upper chamber (13); The upper shell (6) is provided with two air inlet chambers in parallel, and two air inlet ports (61) are provided at the bottom of the upper shell (6) corresponding to the two air inlet chambers. The two air inlet ports (61) are directly opposite to and connected to the two air outlet ports of the lower shell (1). Two groups of oil-gas separation mechanisms and two exhaust chambers are provided at the upper part of the upper shell (6) corresponding to the two air inlet chambers. Each group of oil-gas separation mechanisms includes at least one filter (4). The inlet of the filter (4) in each group of oil-gas separation mechanisms is connected to the corresponding air inlet chamber, and the outlet is connected to the corresponding exhaust chamber. The side wall of the upper shell (6) is provided with an exhaust port (62) corresponding to each of the two exhaust chambers, and the two exhaust pipes (3) are connected to an exhaust port (62) respectively.

2. An improved diesel engine respirator according to claim 1, characterized in that: An air intake channel (12) is vertically arranged on one side of the lower shell (1); a lower port of the air intake channel (12) is connected to an air intake port of the lower chamber (11); and two air intake pipes (2) are connected to an upper port of the air intake channel (12).

3. An improved diesel engine respirator according to claim 1, characterized in that: The upper part of the lower chamber (11) protrudes and is connected to a filter chamber (111); the filter chamber (111) extends upward into the upper chamber (13); the lower part of the upper chamber (13) surrounds the cavity wall of the filter chamber (111); and the filter net (5) is vertically arranged on the cavity wall of the filter chamber (111).

4. An improved diesel engine respirator according to claim 1, characterized in that: The filter screen (5) is a metal screen.

5. An improved diesel engine respirator according to claim 1, characterized in that: The two air inlet pipes (2) are arranged one on the left and one on the right; The two exhaust chambers and the two sets of oil-gas separation mechanisms are symmetrically arranged on the left and right sides of the upper shell (6).

6. An improved diesel engine respirator according to claim 1, characterized in that: Two filters (4) are arranged in each set of oil-gas separation mechanisms.

7. An improved diesel engine respirator according to claim 1, characterized in that: The filter (4) is an asbestos mesh filter.

8. An improved diesel engine respirator according to claim 1, characterized in that: The bottom of the lower shell (1) is arranged to the oil outlet hole.

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