Gear chamber cover plate for improving oil-gas separation

Abstract

The utility model discloses a kind of gear chamber cover plates for improving oil-gas separation, including cover plate body and fishbone structure, cover plate body is equipped with separation cavity, fishbone structure is set in separation cavity, fishbone structure includes multiple fishbone baffle, multiple fishbone baffles are fixed in separation cavity, and multiple fishbone baffles are staggered and set in separation cavity, fishbone baffle includes main plate and spoiler, multiple spoilers are fixed on main plate;The bottom of the separation cavity is provided with a drainage groove, and the output port of the drainage groove extends outside the separation cavity. When the oil mist airflow of mixed machine oil enters the separation cavity, the mixed airflow is forced to change the flow direction multiple times and collide with the multiple fishbone baffles due to the fishbone structure. The oil droplets cannot quickly turn with the airflow due to their large inertia, and coagulate and aggregate after impacting the baffle. Finally, under the action of gravity, they return to the oil pan along the wall, improving the oil-gas separation efficiency. The structure is simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of cover plates, and more specifically, to a gear chamber cover plate for improving oil-gas separation. Background Technology

[0002] In current open-circulation ventilation systems for engines, the oil-gas mixture in the crankcase enters the ventilation system. After being separated by the oil-gas separator in the ventilation system, the engine oil returns to the oil pan through the oil line, and the cleaned gas is discharged into the atmosphere.

[0003] Currently, the oil / gas outlet on the right gear chamber cover is located on the upper right side of the V-type engine, angled downwards. However, due to an unreasonable setting of the position and orientation of the oil / gas outlet in the engine crankcase, the labyrinth's airflow cannot adequately separate the mixed oil and gas, and the oil cannot smoothly return to the oil pan, resulting in a large accumulation of oil at the labyrinth outlet. If a large amount of oil is carried into the oil / gas separator by the airflow, it can easily exceed the separator's separation capacity, leading to oil leakage problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a gear chamber cover plate that improves oil-gas separation efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution: This utility model provides a gear chamber cover plate for improving oil-gas separation, including a cover plate body and a fishbone structure. The cover plate body has a separation cavity, and the fishbone structure is disposed in the separation cavity. The fishbone structure includes multiple fishbone baffles, which are fixed in the separation cavity and are staggered in the separation cavity. Each fishbone baffle includes a main plate and a baffle plate, with the baffle plate fixed on the main plate. A flow channel is provided at the bottom of the separation cavity, and the output port of the flow channel extends to the outside of the separation cavity.

[0006] In a preferred embodiment of this invention, the inlet of the separation chamber is located at the sloping top of the separation chamber.

[0007] In a preferred embodiment of this invention, the output port of the separation chamber is located diagonally downwards from the separation chamber.

[0008] In a preferred embodiment of this invention, the drainage channel is disposed close to the inner bottom wall of the separation chamber.

[0009] In a preferred embodiment of this invention, the fishbone baffle located near the outlet of the separation chamber is connected to the inner bottom wall of the separation chamber.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a gear chamber cover plate for improving oil-gas separation. When the oil mist mixed with engine oil enters the separation chamber, due to the fishbone structure, the mixed airflow is forced to change its flow direction multiple times and collide with the multi-layered fishbone baffles. Oil droplets, due to their high inertia, cannot quickly change direction with the airflow; instead, they condense and aggregate after impacting the baffles, and finally flow back to the oil pan along the wall under gravity, thus improving oil-gas separation efficiency. The structure is simple and highly reliable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the gear chamber cover plate for improving oil-gas separation provided in a specific embodiment of this utility model; Figure 2 yes Figure 1 Enlarged structural diagram of the central drainage channel.

[0012] In the picture: 1. Cover plate, 11. Separation chamber, 12. Output port, 21. Main board, 22. Baffle plate, 3. Drainage channel. Detailed Implementation

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1-2 As shown, the embodiment provides a gear chamber cover 1 for improving oil-gas separation, including a cover 1 body and a fishbone structure. The cover 1 body has a separation cavity 11, and the fishbone structure is disposed in the separation cavity 11. The fishbone structure includes multiple fishbone baffles, which are fixed in the separation cavity 11 and are staggered in the separation cavity 11. Each fishbone baffle includes a main board 21 and a baffle 22, and the baffle 22 is fixed on the main board 21. A flow channel 3 is provided at the bottom of the separation cavity 11, and the output port of the flow channel 3 extends to the outside of the separation cavity 11.

[0015] When the oil mist mixed with engine oil enters the separator 11, due to the fishbone structure, the mixed airflow is forced to change its flow direction multiple times, colliding with the multi-layered labyrinth baffles. Oil droplets, due to their high inertia, cannot quickly change direction with the airflow; instead, they condense and aggregate after impacting the baffles, eventually flowing back to the oil pan along the wall under gravity, thus improving oil-gas separation efficiency. The structure is simple and highly reliable.

[0016] Furthermore, the air intake is located directly above cover 1, in the opposite direction to the force of gravity. Due to gravity, the mixed oil and gas will not accumulate in large quantities below the air intake, but will naturally flow downwards to the bottom of the labyrinth, reducing the oil leakage caused by oil and gas buildup at the air intake.

[0017] The labyrinthine separation structure of the gear chamber cover 1 has no moving parts. During production, it can achieve the designed effect through casting and simple machining, and requires no maintenance afterward, resulting in an extremely low probability of mechanical failure. Furthermore, even if part of the multi-layered fishbone labyrinth structure is damaged, the other parts can still function, preventing complete failure.

[0018] The labyrinth of the gear chamber cover plate 1 was optimized through a multi-stage collision and barrier separation mechanism to improve the oil-gas separation efficiency.

[0019] Furthermore, the input port 11 of the separation cavity 11 is located at the sloping top of the separation cavity 11.

[0020] Furthermore, the output port 12 of the separation chamber 11 is opened to the downward angle of the separation chamber 11.

[0021] Furthermore, the drainage channel 3 is set close to the inner bottom wall of the separation chamber 11.

[0022] Furthermore, the fishbone baffle installed near the output port 12 of the separation chamber 11 is connected to the inner bottom wall of the separation chamber 11.

[0023] Other techniques in this embodiment are based on existing technologies.

[0024] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A gear chamber cover (1) for improving oil-gas separation, characterized in that: The cover plate (1) body and the fishbone structure are included. The cover plate (1) body has a separation cavity (11). The fishbone structure is set in the separation cavity (11). The fishbone structure includes multiple fishbone baffles. The multiple fishbone baffles are fixed in the separation cavity (11) and the multiple fishbone baffles are staggered in the separation cavity (11). The fishbone baffles include a main board (21) and a spoiler (22). The multiple spoilers (22) are fixed on the main board (21). The bottom of the separation chamber (11) is provided with a drainage groove (3), and the output port of the drainage groove (3) extends to the outside of the separation chamber (11).

2. The gear chamber cover plate (1) for improving oil-gas separation according to claim 1, characterized in that: The inlet (11) of the separation chamber (11) is located at the sloping top of the separation chamber (11).

3. The gear chamber cover plate (1) for improving oil-gas separation according to claim 1, characterized in that: The output port (12) of the separation chamber (11) is opened diagonally downwards towards the separation chamber (11).

4. The gear chamber cover plate (1) for improving oil-gas separation according to claim 1, characterized in that: The drainage channel (3) is set close to the inner bottom wall of the separation chamber (11).

5. The gear chamber cover plate (1) for improving oil-gas separation according to claim 1, characterized in that: The fishbone baffle located near the outlet (12) of the separation chamber (11) is connected to the inner bottom wall of the separation chamber (11).

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