Oil-gas separation device with inlet opening automatic adjusting function

Abstract

The present application relates to the technical field of automobile accessories, and provides an oil-gas separation device with an inlet opening degree automatic adjusting function, comprising: a main body assembly, the main body assembly has: a chamber; an inlet end in communication with the chamber; a gas outlet in communication with the chamber; a plurality of oil outlets in communication with the chamber; and an adjusting piece movably arranged in the chamber and oppositely arranged with the inlet end, the adjusting piece can be away from the inlet end when the oil-gas mixture enters the chamber from the inlet end, so as to increase the opening degree of the inlet end, and the adjusting piece can be reset when the flow of the oil-gas mixture entering the chamber is reduced or no oil-gas mixture enters the chamber, so as to reduce the opening degree of the inlet end. Compared with the prior art, the oil-gas separation device of the present application can meet different working conditions by arranging the movable adjusting piece on the inlet end of the main body assembly, and is more beneficial to the separation of the oil-gas mixture.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to an oil-gas separator with an automatic inlet opening adjustment function. Background Technology

[0002] When a car engine is running, some gases from the combustion chamber enter the crankcase with the reciprocating motion of the piston. These gases are typically re-entered into the combustion chamber through the crankcase ventilation system to participate in combustion and be expelled. With advancements in engine technology, the diameter of oil particles in the crankcase has significantly decreased. This makes it easier for crankcase gases to carry large amounts of oil particles out of the crankcase, resulting in high oil consumption. Therefore, to solve this problem, an oil-gas separator must be installed in the crankcase ventilation system to separate the oil and gases in the exhaust mixture and return the separated oil to the crankcase. Existing separators mostly use separation cotton, which is costly, and its performance deteriorates over time due to the adhesion of oil particles and particulate matter from incomplete combustion of gasoline. This can cause it to completely lose its oil-gas separation function after a period of use.

[0003] To address the aforementioned issues, a publicly disclosed Chinese invention patent (authorization announcement number: CN218717058U) discloses a combined oil-gas separator, comprising: a main housing having a cavity formed therein, and an air inlet, an air outlet, and an oil outlet communicating with the cavity; a first separation section disposed between the air inlet and the oil outlet; and a second separation section disposed between the first separation section and the oil outlet. Compared with the prior art, the advantage of this invention lies in that by setting the first and second separation sections within the main housing to separate oil from the oil in the oil-gas mixture, during operation, the oil separated by the first and second separation sections flows out of the cavity through the oil outlet, preventing excessive residue within the cavity. This prevents performance degradation in the oil-gas separator and extends its service life.

[0004] However, the opening of this oil-gas separator is fixed, and the engine speed changes significantly depending on the car's operating conditions. When the engine speed changes, the flow rate of the oil-gas mixture entering the oil-gas separator also changes. This can cause a large amount of oil-gas mixture to enter the oil-gas separator, forcibly pushing away the oil-gas mixture that was already in the separator before it could be separated, which is not conducive to the separation of the oil-gas mixture. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an oil-gas separation device with an automatic inlet opening adjustment function that facilitates the separation of oil-gas mixtures under different working conditions, in light of the current state of the prior art.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: An oil-gas separation device with automatic inlet opening adjustment function is proposed, comprising: a main component, the main component having: a chamber; an inlet end, which communicates with the chamber and allows an oil-gas mixture discharged from the crankcase of an automobile to enter the chamber; an outlet end, which communicates with the chamber and allows the separated gas to exit the chamber; and several oil outlets, which communicate with the chamber and allow the separated oil to exit the chamber.

[0007] An adjusting member is movably disposed within the chamber and opposite to the inlet end. The adjusting member can increase its opening relative to the inlet end when the oil-gas mixture enters the chamber from the inlet end, and reset when the flow rate of the oil-gas mixture entering the chamber decreases or no oil-gas mixture enters the chamber, thereby reducing the opening of the inlet end.

[0008] In the above-mentioned oil-gas separation device with automatic inlet opening adjustment function, the main component includes an upper shell and a lower base plate that are interlocked with each other. A honeycomb structure forming the inlet end is provided on one side of the lower base plate. At least two pins are provided on the side of the adjusting member facing the lower base plate and inserted into the honeycomb structure. The pins are movably inserted into the honeycomb structure.

[0009] In the aforementioned oil-gas separator with automatic inlet opening adjustment function, the adjusting component includes a baffle facing the inlet end, the area of ​​the baffle being between 1 / 2 and 2 / 3 of the area of ​​the inlet end, the baffle and the pin being integrally formed or separately configured, and a connecting plate with an end that movably abuts against the honeycomb structure is provided on the outer wall of the pin, the connecting plate being used to prevent the baffle from abutting against the honeycomb structure.

[0010] In the aforementioned oil-gas separator with automatic inlet opening adjustment function, an elastic element is provided in the chamber. The elastic element moves against the adjusting element to prevent the adjusting element from colliding with the inner wall of the chamber and causing abnormal noise when it moves in the chamber.

[0011] In the aforementioned oil-gas separator with automatic inlet opening adjustment function, the main component is provided with an oil inlet, the oil inlet is directly opposite the inlet end, a filler cap is threadedly connected to the oil inlet, the elastic element is movably disposed inside the filler cap and the end of the elastic element is exposed outside the filler cap, so as to move against the adjusting element.

[0012] In the aforementioned oil-gas separator with automatic inlet opening adjustment function, the elastic element includes:

[0013] The limiting cylinder has an elastic first buckle on its outer side wall, and the side wall of the filler cap has a first slot, in which the first buckle is movably engaged.

[0014] The movable pin has a limiting part at its end, and a movable space is formed between the limiting cylinder and the filler cap. The end of the movable pin away from the limiting part passes through the limiting cylinder, and the limiting part is movably disposed within the movable space.

[0015] A limiting ring is engaged with the end of the movable pin that is away from the limiting portion;

[0016] A spring is sleeved on the outer wall of the movable pin, and the two ends of the spring, along the direction in which it produces elastic deformation, abut against the limiting cylinder and the limiting ring, respectively.

[0017] In the aforementioned oil-gas separator with automatic inlet opening adjustment function, the lower base plate extends toward the upper housing to form a second buckle. The second buckle has a main body and a fastening part that are elastically connected. The upper housing is provided with a connecting part with a second slot. The fastening part can deform toward the main body when it abuts against the connecting part, allowing the fastening part to slide into the second slot. After the fastening part is fastened into the second slot, it elastically resets itself to prevent the lower base plate from separating from the upper housing when the lower base plate tends to move away from the upper housing.

[0018] In the above-mentioned oil-gas separation device with automatic inlet opening adjustment function, the lower bottom plate extends toward one side of the upper shell to form a separation groove, the upper shell extends toward one side of the lower bottom plate to form a separation part, the separation part is inserted into the separation groove, and there is a gap between the separation part and the separation groove for gas to pass through.

[0019] Compared with the prior art, the advantage of the present invention is that by setting an adjustable element at the inlet end of the main component, the oil-gas separation device of this solution can meet different working conditions, which is more conducive to the separation of oil-gas mixture. Attached Figure Description

[0020] Figure 1 This is the floor plan of this application;

[0021] Figure 2 yes Figure 1 Sectional view along the middle AA direction;

[0022] Figure 3 This is an exploded view of this application;

[0023] Figure 4 This is a 3D view of the upper shell.

[0024] In the diagram, 1 is the chamber; 2 is the inlet; 3 is the air outlet; 4 is the oil outlet; 5 is the adjusting component; 6 is the upper housing; 7 is the lower base plate; 8 is the pin; 9 is the baffle; 10 is the oil inlet; 11 is the filler cap; 12 is the limiting cylinder; 13 is the first snap; 14 is the first slot; 15 is the movable pin; 16 is the limiting part; 17 is the limiting ring; 18 is the spring; 19 is the second snap; 20 is the second slot; 21 is the connecting part; 22 is the main body; 23 is the fastening part; 24 is the separation groove; and 25 is the separation part. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figures 1 to 4 As shown, an oil-gas separator with an automatic inlet opening adjustment function according to the present invention includes: a main assembly, the main assembly having: a chamber 1; an inlet end 2, which communicates with the chamber 1 and allows an oil-gas mixture discharged from the crankcase to enter the chamber 1; an outlet 3, which communicates with the chamber 1 and allows the separated gas to exit the chamber 1; a plurality of oil outlets 4, which communicate with the chamber 1 and allow the separated oil to exit the chamber 1; and an adjusting member 5, which is movably disposed in the chamber 1 and disposed opposite to the inlet end 2. The adjusting member 5 can be separated from the inlet end 2 when the oil-gas mixture enters the chamber 1 from the inlet end 2, thereby increasing the opening of the adjusting member 5 with respect to the inlet end 2, and can be reset when the flow rate of the oil-gas mixture entering the chamber 1 decreases or no oil-gas mixture enters the chamber 1, thereby reducing the opening of the inlet end 2.

[0027] During operation, the inlet end 2 of the main component is connected to the crankcase. The oil-gas mixture in the crankcase is received through the inlet end 2. When the car is driving smoothly and the engine speed is relatively stable, the flow rate of the mixed gas flowing from the crankcase into chamber 1 remains stable. After the mixed gas entering chamber 1 from the inlet end 2 is separated by the oil-gas separator, the gas and oil are discharged from chamber 1 from the outlet 3 and oil port 4, respectively. When the car is driving on complex road conditions or overtaking, the engine speed changes significantly and the flow rate of the oil-gas mixture flowing from the crankcase into chamber 1 increases dramatically. At this time, the oil-gas mixture acts on the adjusting component 5, causing the adjusting component 5 to move away from the inlet end 2 in chamber 1, thereby increasing the opening of the inlet end 2. The larger the opening of the inlet, the smaller the impact of the oil-gas mixture entering chamber 1 on chamber 1, thus not affecting the separation of the oil-gas mixture in chamber 1. In this scheme, the movable adjusting component 5 at the inlet end 2 enables the oil-gas separator to meet different working conditions, which is more conducive to the separation of the oil-gas mixture.

[0028] Furthermore, the main components include an upper housing 6 and a lower base plate 7 that are interlocked with each other. A honeycomb structure forming an inlet end 2 is provided on one side of the lower base plate 7. At least two pins 8 are provided on the side of the adjusting member 5 facing the lower base plate 7 and inserted into the honeycomb structure. The pins 8 are movably inserted into the honeycomb structure.

[0029] The pin 8 and the honeycomb structure are used to realize the movable connection of the adjusting member 5 in the chamber 1, and the inlet end 2 of the honeycomb structure can also reduce the impact of the oil-gas mixture on the chamber 1 before the oil-gas mixture is introduced into the chamber 1, thereby increasing the separation efficiency of the oil-gas mixture.

[0030] Furthermore, the adjusting component 5 includes a baffle 9 facing the inlet end 2. The area of ​​the baffle 9 is between 1 / 2 and 2 / 3 of the area of ​​the inlet end 2. The baffle 9 and the pin 8 are integrally formed or separately set. A connecting plate is provided on the outer wall of the pin 8, the end of which movably abuts against the honeycomb structure. The connecting plate is used to prevent the baffle 9 from abutting against the honeycomb structure.

[0031] The setting of the connecting plate and the setting of the area of ​​the baffle 9 between 1 / 2 and 2 / 3 of the area of ​​the inlet end 2 can ensure that the oil-gas mixture does not affect the entry of the chamber 1 during the smooth driving of the car.

[0032] Furthermore, when the engine speed changes significantly, the oil-gas mixture entering from the inlet 2 will push the adjusting component 5 to collide with the inner wall of the upper housing 6, producing abnormal noise and affecting the driving experience of the passengers. In order to solve the above problem, an elastic component is provided in the chamber 1 of this solution. The elastic component moves against the adjusting component 5 to prevent the adjusting component 5 from colliding with the inner wall of the chamber 1 and producing abnormal noise when it moves in the chamber 1.

[0033] Furthermore, the main component is provided with an oil inlet 10, which is directly opposite the inlet end 2. A filler cap 11 is threadedly connected to the oil inlet 10. An elastic element is movably disposed inside the filler cap 11, with the end of the elastic element exposed outside the filler cap 11, so as to move against the adjusting element 5.

[0034] Integrating the engine filler cap 11 into the oil-gas separator and fixing the elastic element with the filler cap 11 can increase the space utilization of the oil-gas separator in this solution.

[0035] Furthermore, the elastic element includes: a limiting cylinder 12, the outer wall of which is provided with an elastic first buckle 13, and the side wall of the filler cap 11 is provided with a first groove 14, the first buckle 13 being movably engaged in the first groove 14; a movable pin 15, the end of which is provided with a limiting part 16, a movable space being formed between the limiting cylinder 12 and the filler cap 11, the end of the movable pin 15 away from the limiting part 16 passing through the limiting cylinder 12 and the limiting part 16 being movably disposed in the movable space; a limiting ring 17, which is engaged with the end of the movable pin 15 away from the limiting part 16; and a spring 18, which is sleeved on the outer wall of the movable pin 15, the two ends of the spring 18 along the direction of its own elastic deformation abutting against the limiting cylinder 12 and the limiting ring 17 respectively.

[0036] When the oil-gas mixture enters the chamber 1 and moves the adjusting component 5 toward the upper housing 6, the adjusting component 5 first touches the limiting ring 17, and then moves the limiting ring 17 and the movable pin 15 toward the filler cap 11. When the limiting ring 17 moves, it causes the spring 18 to compress, preventing abnormal noise from the oil-gas separation device of this scheme. After the adjusting component 5 resets, the spring 18 returns to its extended state and causes the movable pin 15 and the limiting ring 17 to reset.

[0037] Furthermore, the lower base plate 7 extends towards the upper housing 6 to form a second latch 19. The second latch 19 has a main body portion 22 and a latching portion 23 that are elastically connected. The upper housing 6 is provided with a connecting portion 21 having a second latching groove 20. The latching portion 23 can deform towards the main body portion 22 when it abuts against the connecting portion 21, allowing the latching portion 23 to slide into the second latching groove 20. After the latching portion 23 is latched into the second latching groove 20, it elastically returns to its original position to prevent the lower base plate 7 from separating from the upper housing 6 when the lower base plate 7 tends to move away from the upper housing 6. The second latch 19 and the second latching groove 20 are provided to realize the latching between the upper housing 6 and the lower base plate 7.

[0038] Furthermore, the lower base plate 7 extends toward the upper housing 6 to form a separation groove 24, and the upper housing 6 extends toward the lower base plate 7 to form a separation part 25. The separation part 25 is inserted into the separation groove 24, and there is a gap between the separation part 25 and the separation groove 24 for gas to pass through.

[0039] The separation section 25 and the separation tank 24 are designed to initially separate oil from the oil-gas mixture, thereby achieving the purpose of oil-gas separation.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0044] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by the spirit of the invention.

Claims

1. An oil-gas separator with automatic inlet opening adjustment function, characterized in that, include: A main body assembly having: a chamber; an inlet end communicating with the chamber and allowing an oil-gas mixture discharged from the crankcase of the automobile to enter the chamber; An air outlet, which communicates with the chamber and allows the separated gas to be discharged from the chamber; and several oil outlets, which communicate with the chamber and allow the separated oil to be discharged from the chamber. An adjusting member is movably disposed within the chamber and opposite to the inlet end. The adjusting member can increase its opening relative to the inlet end when the oil-gas mixture enters the chamber from the inlet end, and reset when the flow rate of the oil-gas mixture entering the chamber decreases or no oil-gas mixture enters the chamber, thereby reducing the opening of the inlet end. The main component includes an upper shell and a lower base plate that are interlocked with each other. A honeycomb structure forming the inlet end is provided on one side of the lower base plate. At least two pins are provided on the side of the adjusting member facing the lower base plate and inserted into the honeycomb structure. The pins are movably inserted into the honeycomb structure. The adjusting component includes a baffle facing the inlet end, the area of ​​which is between 1 / 2 and 2 / 3 of the area of ​​the inlet end. The baffle and the pin are integrally formed or separately provided. A connecting plate is provided on the outer wall of the pin, the end of which movably abuts against the honeycomb structure. The connecting plate is used to prevent the baffle from abutting against the honeycomb structure.

2. The oil-gas separator with automatic inlet opening adjustment function as described in claim 1, characterized in that, An elastic element is provided in the cavity, and the elastic element moves against the adjusting element to prevent the adjusting element from colliding with the inner wall of the cavity and producing abnormal noise when it moves in the cavity.

3. The oil-gas separator with automatic inlet opening adjustment function as described in claim 2, characterized in that, The main component is provided with an oil inlet, which is directly opposite the inlet end. A filler cap is threadedly connected to the oil inlet. The elastic element is movably disposed inside the filler cap, with its end exposed outside the filler cap, for moving and abutting against the adjusting element.

4. The oil-gas separator with automatic inlet opening adjustment function as described in claim 3, characterized in that, The elastic element includes: The limiting cylinder has an elastic first buckle on its outer side wall, and the side wall of the filler cap has a first slot, in which the first buckle is movably engaged. The movable pin has a limiting part at its end, and a movable space is formed between the limiting cylinder and the filler cap. The end of the movable pin away from the limiting part passes through the limiting cylinder, and the limiting part is movably disposed within the movable space. A limiting ring is engaged with the end of the movable pin that is away from the limiting portion; A spring is sleeved on the outer wall of the movable pin, and the two ends of the spring, along the direction in which it produces elastic deformation, abut against the limiting cylinder and the limiting ring, respectively.

5. An oil-gas separator with automatic inlet opening adjustment function as described in claim 1, characterized in that, The lower base plate extends toward the upper housing to form a second buckle. The second buckle has a main body and a fastening part that are elastically connected. The upper housing is provided with a connecting part with a second slot. The fastening part can deform toward the main body when it is pressed against the connecting part, allowing the fastening part to slide into the second slot. After the fastening part is fastened into the second slot, it elastically returns to its original position to prevent the lower base plate from separating from the upper housing when the lower base plate tends to move away from the upper housing.

6. The oil-gas separator with automatic inlet opening adjustment function as described in claim 1, characterized in that, The lower base plate extends toward one side of the upper shell to form a separation groove, and the upper shell extends toward one side of the lower base plate to form a separation part. The separation part is inserted into the separation groove, and there is a gap between the separation part and the separation groove for gas to pass through.

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