CN215333045U - Crankcase ventilation anti-freezing structure, crankcase ventilation system and vehicle - Google Patents
Crankcase ventilation anti-freezing structure, crankcase ventilation system and vehicle Download PDFInfo
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- CN215333045U CN215333045U CN202121132811.9U CN202121132811U CN215333045U CN 215333045 U CN215333045 U CN 215333045U CN 202121132811 U CN202121132811 U CN 202121132811U CN 215333045 U CN215333045 U CN 215333045U
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- crankcase ventilation
- oil pan
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Abstract
The utility model relates to the technical field of vehicles, and particularly discloses a crankcase ventilation and anti-freezing structure, a crankcase ventilation system and a vehicle. The crankcase ventilation anti-freezing structure comprises an oil pan, a breather air outlet pipe and a heat exchange assembly, wherein lubricating oil is filled in the oil pan, and a first air inlet and a first air outlet are formed in the oil pan; one end of the breather air outlet pipe is communicated with the first air inlet, and the other end of the breather air outlet pipe is connected with a breather; the heat exchange assembly is arranged in the oil pan, a second air inlet of the heat exchange assembly is communicated with the first air inlet, and a second air outlet of the heat exchange assembly is communicated with the first air outlet. The crankcase ventilation anti-freezing structure provided by the utility model prevents the gas in the breather outlet pipe from freezing at the pipe orifice due to too low temperature by utilizing the heat of the lubricating oil, the lubricating oil has high temperature, large mass and more latent heat, the lubricating oil is liquid, and has high convection power and high heat exchange efficiency in a heat exchange assembly as a heat exchange source, and the efficiency of an engine heat-radiating system is also improved.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a crankcase ventilation and anti-freezing structure, a crankcase ventilation system and a vehicle.
Background
Crankcase gas of an engine needs to be guided to the atmosphere due to piston blow-by and the like. Because the crankcase gas contains a trace amount of water vapor generated by piston combustion, the water vapor in the crankcase gas can be frozen at the drainage port under the condition of cold air temperature. After the engine runs for a long time, ice can grow to block the drainage port, causing a failure of the crankcase pressure rise. If the crankcase gas is guided to an engine air inlet system, the ice blocks are broken after growing to a certain volume and enter an engine supercharger along with the airflow, and the ice blocks collide with the compressor blades of the supercharger rotating at high speed, so that the ice blocks are damaged or deformed, and the fault of poor supercharging of the engine is caused.
The problem of condensation of water vapour in the crankcase gas in the ventilation duct needs to be solved, and in the prior art, the water vapour anti-freezing structure in the crankcase gas is to heat the crankcase ventilation duct by using a heating system, in particular by using electrical heating or by conducting heat from the engine block. The electric heating mode needs additional electric heating components and needs to be powered by the engine, the cost of the electric heating components is high, and the output power of the engine can be reduced by using the engine for power supply. The problem of conducting engine block heat for heating is that less heat is conducted and the lift temperature is lower.
Therefore, it is desirable to provide a crankcase ventilation anti-freezing structure to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a crankcase ventilation anti-freezing structure, a crankcase ventilation system and a vehicle, and solves the problems of high heating cost and low heating efficiency in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
crankcase ventilation anti-freeze structure includes:
the oil pan is filled with lubricating oil, and is provided with a first air inlet and a first air outlet;
one end of the respirator air outlet pipe is communicated with the first air inlet, and the other end of the respirator air outlet pipe is connected with a respirator;
the heat exchange assembly is arranged in the oil pan, a second air inlet of the heat exchange assembly is communicated with the first air inlet, and a second air outlet of the heat exchange assembly is communicated with the first air outlet.
As a preferable technical solution of the above-mentioned crankcase ventilation anti-freezing structure, the first exhaust port and the first air inlet are disposed on opposite sides of the oil pan, and the first air inlet is higher than the first exhaust port.
As a preferable technical solution of the above crankcase ventilation anti-freezing structure, the first exhaust port is disposed at a rear side of the oil pan, and the first intake port is disposed at a front side of the oil pan.
As a preferable aspect of the above crankcase ventilation anti-freezing structure, the first exhaust port is provided near a bottom of the oil pan.
As a preferable technical scheme of the crankcase ventilation anti-freezing structure, a connection joint is arranged at the first air inlet, one end of the connection joint penetrates through the side wall of the oil pan and is connected with the second air inlet of the heat exchange assembly, and the other end of the connection joint is connected with the breather air outlet pipe.
As a preferable technical solution of the above crankcase ventilation anti-freezing structure, the heat exchange assembly is disposed at the bottom of the oil pan.
As an optimal technical scheme of the crankcase ventilation anti-freezing structure, the heat exchange assembly comprises a heat exchange tube, the heat exchange tube is made of heat conducting materials, one end of the heat exchange tube is communicated with the first air inlet, and the other end of the heat exchange tube is communicated with the first air outlet.
As a preferable technical scheme of the crankcase ventilation anti-freezing structure, the heat exchange tube is made of a metal material.
A crankcase ventilation system comprising a crankcase ventilation anti-freeze structure as set forth in any one of the preceding claims.
A vehicle comprising a crankcase ventilation system as described above.
The utility model has the beneficial effects that:
according to the ventilation and anti-freezing structure of the crankcase, the heat exchange assembly is arranged in the oil pan, gas in the breather gas outlet pipe enters the heat exchange assembly and exchanges heat with lubricating oil in the oil pan, and the gas in the breather gas outlet pipe is prevented from freezing at the pipe orifice due to too low temperature by using the heat of the lubricating oil; in addition, the lubricating oil has high temperature, large mass and more latent heat, is liquid, and has large convection power and high heat exchange efficiency in the heat exchange assembly as a heat exchange source; the heat of the lubricating oil is utilized to heat the gas in the crankcase, so that the power of the engine is not consumed, and the efficiency of a heat dissipation system of the engine is improved.
The crankcase ventilation system provided by the utility model can effectively avoid the problem that the pipe orifice of the breather air outlet pipe is frozen due to too low temperature, and has the advantages of low heating cost and high heating efficiency.
The vehicle provided by the utility model reduces the possibility of reducing the icing of the crankcase ventilation system and improves the satisfaction degree of users.
Drawings
FIG. 1 is a schematic structural view of a crankcase ventilation system according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a crankcase ventilation freeze protection arrangement provided by an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of a crankcase ventilation antifreeze structure provided by an embodiment of the present invention.
In the figure:
1. an oil pan; 11. a first exhaust port; 12. a first air inlet;
2. a breather outlet pipe;
3. a respirator;
4. a heat exchange assembly;
5. and connecting the joints.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The anti-freezing structure comprises a crankcase ventilation pipe, an engine power supply, an engine cylinder body, an engine power supply, an engine temperature sensor, a crankcase ventilation system and a vehicle.
Specifically, as shown in fig. 1 to 3, in the present embodiment, the crankcase ventilation anti-freezing structure includes an oil pan 1, a breather outlet pipe 2, and a heat exchange assembly 4; lubricating oil is filled in the oil pan 1, and a first air inlet 12 and a first air outlet 11 are arranged on the oil pan 1; one end of the respirator air outlet pipe 2 is communicated with the first air inlet 12, and the other end of the respirator air outlet pipe is connected with a respirator 3; the heat exchange assembly 4 is arranged in the oil pan 1, a second air inlet of the heat exchange assembly 4 is communicated with the first air inlet 12, and a second air outlet of the heat exchange assembly 4 is communicated with the first air outlet 11.
According to the ventilation and anti-freezing structure of the crankcase, the heat exchange assembly 4 is arranged in the oil pan 1, the gas in the breather gas outlet pipe 2 enters the heat exchange assembly 4 and exchanges heat with lubricating oil in the oil pan 1, and the gas in the breather gas outlet pipe 2 is prevented from freezing at the pipe orifice due to too low temperature by using the heat of the lubricating oil; in addition, the lubricating oil has high temperature, large mass and more latent heat, is liquid, and has large convection power and high heat exchange efficiency in the heat exchange assembly 4 as a heat exchange source; the heat of the lubricating oil is utilized to heat the gas in the crankcase, so that the power of the engine is not consumed, and the efficiency of a heat dissipation system of the engine is improved.
In the present embodiment, the first exhaust port 11 and the first intake port 12 are disposed on two opposite sides of the oil pan 1, and the first intake port 12 is disposed higher than the first exhaust port 11, so that the gas can be sufficiently exhausted, and the condensed water is prevented from accumulating in each component.
Further, the first exhaust port 11 is provided near the bottom of the oil pan 1, and not only can condensed water be prevented from accumulating in various components, but also external splashes can be prevented from clogging the exhaust port when the vehicle is running.
In the orientation in which the first exhaust port 11 and the first intake port 12 are arranged, the first exhaust port 11 is provided on the rear side of the oil pan 1, and the first intake port 12 is provided on the front side of the oil pan 1. Set up first exhaust port 11 in the rear side of oil pan 1, avoid the harmful to people of exhaust high temperature gas, improved the security performance.
In order to facilitate the respirator outlet pipe 2 to be connected with the first air inlet 12, the first air inlet 12 is provided with a connecting joint 5, one end of the connecting joint 5 penetrates through the side wall of the oil pan 1 and is connected with the second air inlet of the heat exchange assembly 4, and the other end of the connecting joint 5 is connected with the respirator outlet pipe 2. The connector 5 is provided to facilitate connection between the respirator outlet tube 2 and the heat exchange assembly 4.
In order to prevent lubricant in the oil pan 1 from flowing out, the connection joint 5 is connected in a sealing manner to the oil pan 1. In particular, a sealing ring may be provided between the connection fitting 5 and the oil sump 1 to achieve a sealed connection.
Further, both ends of the connecting joint 5 can be provided with threads, the respirator air outlet pipe 2 is in threaded connection with the connecting joint 5, the second air inlet of the heat exchange assembly 4 is in threaded connection with the connecting joint 5 through a pipeline, and the respirator air inlet is convenient to mount and dismount and simple in structure.
In another embodiment, the respirator outlet pipe 2 can also be directly sleeved on the connector 5, the second air inlet of the heat exchange assembly 4 is sleeved with the connector 5 through a pipeline, and then the connection between the respirator outlet pipe 2 and the pipeline and the connector 5 is reinforced through a fastener.
In this embodiment, in order to improve the heat exchange efficiency, the heat exchange assembly 4 is disposed at the bottom of the oil pan 1, so as to ensure that the lubricating oil can completely immerse the heat exchange assembly 4, so as to ensure that the gas passing through the heat exchange assembly 4 can fully exchange heat with the lubricating oil.
In this embodiment, the heat exchange assembly 4 includes a heat exchange tube made of a heat conductive material, one end of the heat exchange tube is communicated with the first air inlet 12, and the other end of the heat exchange tube is communicated with the first air outlet 11. Because the direct atmosphere of discharging into of gas in the crankcase in this embodiment, only need the moisture in the gas not condense block up respirator outlet duct 2 can, first exhaust port 11 sets up on oil pan 1, can receive high temperature lubricating oil direct heating in the oil pan 1, uses the heat exchange tube can satisfy the user demand in this embodiment. Preferably, the use requirement can be met by arranging one heat exchange tube. Certainly also can set up many heat exchange tubes, the gas in respirator outlet duct 2 is shunted to each heat exchange tube in by automatic to improve heat exchange efficiency.
Furthermore, the heat exchange tube is made of metal materials, so that the heat conduction performance is good, and the heat exchange efficiency is improved.
The embodiment also provides a crankcase ventilation system, which comprises the crankcase ventilation anti-freezing structure. The crankcase ventilation system with the crankcase ventilation anti-freezing structure can effectively avoid the problem that the mouth of pipe of the breather outlet pipe 2 is frozen due to too low temperature, and has low heating cost and high heating efficiency.
The embodiment also provides a vehicle comprising the crankcase ventilation system. The vehicle provided by the embodiment reduces the possibility of icing the crankcase ventilation system and improves the using satisfaction of users.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. Crankcase ventilation anti-freeze structure, its characterized in that includes:
the oil pan (1), lubricating oil is filled in the oil pan (1), and a first air inlet (12) and a first exhaust port (11) are arranged on the oil pan (1);
one end of the respirator air outlet pipe (2) is communicated with the first air inlet (12), and the other end of the respirator air outlet pipe (2) is connected with a respirator (3);
heat exchange assembly (4), set up in oil pan (1), the second air inlet of heat exchange assembly (4) with first air inlet (12) intercommunication, the second gas vent of heat exchange assembly (4) with first gas vent (11) intercommunication.
2. The crankcase ventilation anti-freeze structure according to claim 1, characterized in that the first exhaust port (11) and the first intake port (12) are provided on opposite sides of the oil pan (1), and the first intake port (12) is provided higher than the first exhaust port (11).
3. The crankcase ventilation anti-freeze structure according to claim 2, characterized in that the first intake port (11) is provided at a rear side of the oil pan (1), and the first intake port (12) is provided at a front side of the oil pan (1).
4. Crankcase ventilation anti-freeze construction according to claim 2, characterised in that the first exhaust port (11) is arranged close to the bottom of the oil sump (1).
5. The crankcase ventilation anti-freezing structure according to claim 1, characterized in that a connecting joint (5) is arranged at the first air inlet (12), one end of the connecting joint (5) penetrates through the side wall of the oil pan (1) and is connected with the second air inlet of the heat exchange assembly (4), and the other end of the connecting joint (5) is connected with the breather air outlet pipe (2).
6. Crankcase ventilation anti-freeze structure according to claim 1, characterised in that the heat exchange assembly (4) is arranged at the bottom of the oil sump (1).
7. The crankcase ventilation anti-freezing structure according to claim 1, wherein the heat exchange assembly (4) comprises a heat exchange tube made of a heat conducting material, one end of the heat exchange tube is communicated with the first air inlet (12), and the other end of the heat exchange tube is communicated with the first air outlet (11).
8. The crankcase ventilation anti-freeze structure of claim 7, wherein the heat exchange tube is made of a metal material.
9. A crankcase ventilation system comprising the crankcase ventilation antifreeze structure of any of claims 1-8.
10. A vehicle comprising the crankcase ventilation system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121132811.9U CN215333045U (en) | 2021-05-25 | 2021-05-25 | Crankcase ventilation anti-freezing structure, crankcase ventilation system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121132811.9U CN215333045U (en) | 2021-05-25 | 2021-05-25 | Crankcase ventilation anti-freezing structure, crankcase ventilation system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN215333045U true CN215333045U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121132811.9U Active CN215333045U (en) | 2021-05-25 | 2021-05-25 | Crankcase ventilation anti-freezing structure, crankcase ventilation system and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508401A (en) * | 2022-02-08 | 2022-05-17 | 东风汽车集团股份有限公司 | Crankcase ventilation system, control method and device thereof, medium and electronic equipment |
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2021
- 2021-05-25 CN CN202121132811.9U patent/CN215333045U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508401A (en) * | 2022-02-08 | 2022-05-17 | 东风汽车集团股份有限公司 | Crankcase ventilation system, control method and device thereof, medium and electronic equipment |
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