CN211598788U - Closed circulation ventilation system and have its engine - Google Patents
Closed circulation ventilation system and have its engine Download PDFInfo
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- CN211598788U CN211598788U CN201922387503.XU CN201922387503U CN211598788U CN 211598788 U CN211598788 U CN 211598788U CN 201922387503 U CN201922387503 U CN 201922387503U CN 211598788 U CN211598788 U CN 211598788U
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Abstract
The utility model belongs to the technical field of the engine, concretely relates to closed circulation ventilation system for the crankcase of engine, closed circulation ventilation system include oil and gas separator and electronic booster, and oil and gas separator is equipped with first entry and first export, first entry be used for with the oil gas export intercommunication of crankcase, electronic booster is equipped with second entry and second export, the second entry with oil and gas separator's first export intercommunication, the second export be used for with the intake pipe intercommunication of engine. The utility model provides a closed circulation ventilation system purifies the waste gas of crankcase through the intake pipe that inserts the engine after electric supercharger pressure boost again, and electric supercharger can avoid engine air intake system and this system to have the pressure differential and strike this system, realizes utilizing the waste gas of crankcase to supply the air input of engine, avoids oil gas pollution engine air intake system's booster simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the engine, concretely relates to closed circulation ventilation system. The utility model discloses still relate to an engine.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The existing closed circulation ventilation system of the crankcase is connected to an air inlet pipeline between a supercharger compressor and an air filter through an air outlet pipe of an oil-gas separator, separated oil gas is discharged to the air inlet pipeline between the air filter and the supercharger, and fine oil drops are gradually accumulated on an impeller of the supercharger compressor along with the work of an engine, so that the working efficiency of the supercharger is influenced, the consumption rate of fuel oil is improved, and the efficiency of the supercharger is influenced, so that the fuel oil economy of the engine is deteriorated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the oil gas of crankcase closed circulation ventilation system pollutes the booster and then reduces booster efficiency among the prior art at least, and this purpose is realized through following technical scheme:
the utility model discloses a first aspect provides a closed circulation ventilation system for the crankcase of engine, closed circulation ventilation system includes:
the oil-gas separator is provided with a first inlet and a first outlet, and the first inlet is communicated with the oil-gas outlet of the crankcase;
the electric supercharger is provided with a second inlet and a second outlet, the second inlet is communicated with the first outlet of the oil-gas separator, and the second outlet is communicated with an air inlet pipe of the engine.
The utility model provides a closed circulation ventilation system purifies the waste gas of crankcase through the intake pipe that inserts the engine after electric supercharger pressure boost again, and electric supercharger can avoid engine air intake system and this system to have the pressure differential and strike this system, realizes utilizing the waste gas of crankcase to supply the air input of engine, avoids oil gas pollution engine air intake system's booster simultaneously.
In addition, according to the utility model discloses a closed circulation ventilation system still can have following additional technical characterstic:
in some embodiments of the present invention, the closed circulation ventilation system further comprises a check valve, the check valve is disposed on the pipeline communicating the second outlet with the intake pipe.
In some embodiments of the present invention, the electric supercharger is configured to adjust a first line pressure between the check valve and the second outlet, so that the first line pressure is greater than a second line pressure between the check valve and the intake pipe.
In some embodiments of the present invention, a pressure regulating valve is provided in the pipeline between the first outlet and the second inlet.
In some embodiments of the present invention, the closed circulation ventilation system further comprises a control unit, the control unit is electrically connected to the electric supercharger.
In some embodiments of the utility model, the oil and gas separator is equipped with the oil return opening, the oil return opening be used for with the oil inlet intercommunication of engine.
In some embodiments of the present invention, a pipeline between the first inlet of the gas-oil separator and the oil-gas outlet of the crankcase is provided with a safety valve.
In some embodiments of the present invention, the second outlet of the electric supercharger is used for connecting a pipe between an intercooler of an engine and an intake pipe of the engine.
A second aspect of the present invention provides an engine, comprising:
a crankcase;
an air inlet pipe;
the utility model discloses a closed circulation ventilation system that second aspect provided, oil and gas separator first entry with the oil gas export intercommunication of crankcase, electric supercharger the second export with the engine the intake pipe intercommunication.
The utility model provides an engine have with the utility model discloses the same beneficial effect of closed circulation ventilation system that the first aspect provided, no longer give unnecessary details here.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a system configuration according to an embodiment of the present invention;
the reference symbols in the drawings denote the following:
10: an engine, 11: an air inlet pipe;
20: oil-gas separator, 201: first inlet, 202: first outlet, 203: oil return port, 21: electric supercharger, 211: second inlet, 212: second outlet, 22: safety valve, 23: check valve, 24: a pressure regulating valve;
30: air cleaner, 31: turbocharger, 32: an intercooler;
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "second" and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, an element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, a first aspect of the present invention provides a closed circulation ventilation system for a crankcase of an engine 10, the closed circulation ventilation system including:
the oil-gas separator 20 is provided with a first inlet 201 and a first outlet 202, and the first inlet 201 is used for being communicated with an oil-gas outlet of the crankcase;
the electric supercharger 21 is provided with a second inlet 211 and a second outlet 212, the second inlet 211 is communicated with the first outlet 202 of the oil separator 20, and the second outlet 212 is used for being communicated with the air inlet pipe 11 of the engine 10.
The utility model provides a closed circulation ventilation system purifies the waste gas of crankcase through air separator 20 and inserts engine 10's intake pipe 11 after electric supercharger 21 pressure boost again, do not pass through the engine air intake system who comprises air purifier 30, turbo charger 31 and intercooler 32, thereby avoid oil gas after air separator 20 purifies to pollute engine 10 lubricating system's turbo charger 31, and electric supercharger 21 can improve the oil gas pressure of this system output, there is the pressure differential and strikes this system in the air intake system who avoids engine 10 and this system, the waste gas that leads to the crankcase is difficult to get rid of, the realization utilizes the waste gas of crankcase to supply engine 10's air input.
In some embodiments of the present invention, the closed circulation ventilation system further includes a check valve 23, and the check valve 23 is disposed on a pipeline connecting the second outlet 212 and the intake pipe 11. The electric supercharger 21 is protected by arranging the check valve 23, and the electric supercharger 21 is prevented from being damaged due to the fact that the intake pressure impacts the electric supercharger 21 when the pressure of the intake system of the engine 10 is larger than that of the system.
In some embodiments of the present invention, the electric supercharger 21 is configured to adjust a first line pressure between the check valve 23 and the second outlet 212, so that the first line pressure is greater than a second line pressure between the check valve 23 and the intake pipe 11. By providing the electric supercharger 21, the closed-cycle ventilation system can smoothly discharge the waste oil gas from the crankcase even under the intake pressure of the intake system of the engine 10.
In some embodiments of the present invention, the pipeline between the first outlet 202 and the second inlet 211 is provided with a pressure regulating valve 24. The pressure of the pipeline between the oil separator 20 and the electric supercharger 21 is regulated by providing a pressure regulating valve 24 so as to supercharge the electric supercharger 21.
The utility model discloses an in some embodiments, closed circulation ventilation system still includes the control unit, the control unit is connected with electric supercharger 21 electricity, the control unit is used for detecting the air leakage of engine 10, the control unit is connected with the air leakage detection device electricity of engine 10 and receives the air leakage data, the control unit is according to the operating speed and the break-make state of air leakage data and air leakage MAP table inquiry demarcation electric supercharger 21, and then adjust electric supercharger 21, in order to reach energy-conserving purpose, wherein the air leakage MAP calibrates the chart of the operating speed and the break-make state of air leakage and electric supercharger that obtains for the engine bench, the control unit is after receiving the air leakage data, look for the operating speed and the break-make state of the electric supercharger that this air leakage data corresponds in the air leakage MAP, in view of the above, directly adjust electric supercharger 21.
In some embodiments of the present invention, the oil-gas separator 20 is provided with an oil return opening 203, and the oil return opening 203 is used for communicating with an oil inlet of the engine 10. The oil separated by the oil-gas separator 20 can be returned to the engine 10 by providing an oil return line, thereby achieving the purpose of energy saving.
In some embodiments of the present invention, the pipeline between the first inlet 201 of the gas-oil separator 20 and the gas-oil outlet of the crankcase is provided with a safety valve 22. When the pressure in the pipeline between the crankcase and the gas-oil separator 20 is too large, the pressure is released through a safety valve 22.
In some embodiments of the present invention, the second outlet 212 of the electric supercharger 21 is used to connect a pipeline between the intercooler 32 of the engine 10 and the intake pipe 11 of the engine 10. The air intake system of engine 10 is including the air cleaner 30, turbo charger 31 and the intercooler 32 that connect gradually, and the intake pipe 11 of intercooler 32 intercommunication engine 10 is with the intake pipe 11 behind the closed circulation ventilation system access intercooler 32, avoids closed circulation ventilation system's oil gas pollution turbo charger 31 to make turbo charger 31 efficiency reduce.
The second aspect of the present invention provides an engine 10, the engine 10 comprising the second aspect of the present invention provides a closed circulation ventilation system, the closed circulation ventilation system being used for supplementing the air input of the engine 10 with the exhaust gas from the crankcase of the engine 10.
The utility model provides an engine have with the utility model discloses the same beneficial effect of closed circulation ventilation system that the first aspect provided, no longer give unnecessary details here.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A closed cycle ventilation system for a crankcase of an engine, the closed cycle ventilation system comprising:
the oil-gas separator is provided with a first inlet and a first outlet, and the first inlet is communicated with the oil-gas outlet of the crankcase;
the electric supercharger is provided with a second inlet and a second outlet, the second inlet is communicated with the first outlet of the oil-gas separator, and the second outlet is communicated with an air inlet pipe of the engine.
2. The closed-cycle ventilation system of claim 1, further comprising a check valve disposed on a conduit communicating the second outlet with the intake pipe.
3. The closed-cycle ventilation system of claim 2, wherein the electric booster is configured to regulate a first line pressure between the check valve and the second outlet such that the first line pressure is greater than a second line pressure between the check valve and the intake pipe.
4. The closed-cycle ventilation system of claim 1, wherein a line between the first outlet and the second inlet is provided with a pressure-regulating valve.
5. The closed-cycle ventilation system of claim 1, further comprising a control unit electrically connected to the electric supercharger.
6. The closed circulation ventilation system according to any one of claims 1 to 5, wherein the oil separator is provided with an oil return port for communicating with an oil inlet port of the engine.
7. The closed cycle ventilation system of any one of claims 1 to 5, wherein a conduit between the first inlet of the gas-oil separator and the gas-oil outlet of the crankcase is provided with a relief valve.
8. An engine, characterized in that the engine comprises:
a crankcase;
an air inlet pipe;
the closed cycle ventilation system of any one of claims 1 to 7, wherein the first inlet of the gas-oil separator is in communication with a gas-oil outlet of the crankcase, and the second outlet of the electric supercharger is in communication with the intake pipe of the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387503.XU CN211598788U (en) | 2019-12-25 | 2019-12-25 | Closed circulation ventilation system and have its engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387503.XU CN211598788U (en) | 2019-12-25 | 2019-12-25 | Closed circulation ventilation system and have its engine |
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| CN211598788U true CN211598788U (en) | 2020-09-29 |
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| CN201922387503.XU Active CN211598788U (en) | 2019-12-25 | 2019-12-25 | Closed circulation ventilation system and have its engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941557A (en) * | 2022-05-09 | 2022-08-26 | 潍柴动力股份有限公司 | Engine connecting pipeline, control method and engine system |
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2019
- 2019-12-25 CN CN201922387503.XU patent/CN211598788U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941557A (en) * | 2022-05-09 | 2022-08-26 | 潍柴动力股份有限公司 | Engine connecting pipeline, control method and engine system |
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