CN215633313U - Successive supercharging control system and diesel engine - Google Patents
Successive supercharging control system and diesel engine Download PDFInfo
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- CN215633313U CN215633313U CN202121000935.1U CN202121000935U CN215633313U CN 215633313 U CN215633313 U CN 215633313U CN 202121000935 U CN202121000935 U CN 202121000935U CN 215633313 U CN215633313 U CN 215633313U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The application relates to the technical field of diesel engines, and discloses a consecutive pressurization control system and a diesel engine, wherein the control system comprises: the first air compressors are connected in parallel, the first air compressors are communicated with the intercooler, and the intercooler is communicated with the air cylinder; an exhaust manifold in communication with the cylinders; the first turbines are connected with the first gas compressors in a one-to-one correspondence mode and are communicated with the exhaust manifold; the second air compressor is connected with the first air compressor in parallel and communicated with the intercooler, and an air valve is arranged on a second air inlet pipeline; the second turbine is communicated with the exhaust manifold, and the first exhaust pipeline is provided with an exhaust gas valve; the hydraulic cylinder assembly is used for controlling the opening or closing of the air valve and the exhaust valve; and the hydraulic oil circuit is used for driving the hydraulic cylinder assembly to control the opening or closing of the air valve and the exhaust valve. The sequential pressurization control system disclosed by the application can enable the arrangement structure of the whole machine to be compact, and improves the reliability of the control system.
Description
Technical Field
The application relates to the technical field of diesel engines, in particular to a sequential supercharging control system and a diesel engine.
Background
With the development of diesel engine technology and the stricter emission regulations of marine diesel engines, the diesel engines need to be supercharged sequentially according to the current rotating speed and load during use, so that the matching of the supercharger and the diesel engine is optimized under each working condition. Then, the pneumatic control that current pressure boost control system in succession adopted needs external air supply, influences control system's reliability easily, and in addition, pneumatic control mechanism spare part is bulky, leads to the complete machine to arrange not compactly, is unfavorable for the diesel engine and arranges on the ship type that the space is narrow and small.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sequential pressurization control system and a diesel engine, which can solve the problem that the control system is unreliable due to the need of an external air source in the prior art.
In order to achieve the above object, in one aspect, the present invention provides a sequential supercharging control system including:
the system comprises a plurality of first gas compressors connected in parallel, wherein each first gas compressor is communicated with an intercooler through a first gas inlet pipeline, and the intercooler is communicated with a cylinder for combustion;
an exhaust manifold in communication with the cylinders;
the first turbines are connected with the first gas compressors in a one-to-one correspondence mode and are respectively communicated with the exhaust main pipe through first exhaust pipelines;
the second air compressor is connected with the first air compressor in parallel and communicated with the intercooler through a second air inlet pipeline, and an air valve is arranged on the second air inlet pipeline;
the second turbine is connected with the second compressor and communicated with the exhaust manifold through a second exhaust pipeline, and the second exhaust pipeline is provided with a waste gas valve;
the hydraulic cylinder assembly is used for controlling the opening or closing of the air valve and the exhaust gas valve;
and the hydraulic oil way is used for driving the hydraulic cylinder assembly to control the opening or closing of the air valve and the waste gas valve.
According to the sequential pressurization control system, when the diesel engine works normally, the first air compressor and the first turbine are started, when pressurization is needed along with the increase of the rotating speed and the load of the diesel engine, the air valve and the waste gas valve are started, the second air compressor and the second turbine are enabled to work, and the hydraulic cylinder assembly for controlling the opening of the air valve and the waste gas valve is controlled through the hydraulic oil circuit, so that external air source control is not needed, only diesel engine oil is used for driving, the reliability of the control system is improved, the arrangement of the whole machine is compact, and the arrangement of the diesel engine on a ship with a narrow space is facilitated.
Therefore, the sequential pressurization control system provided by the utility model controls the opening or closing of the air valve and the waste gas valve by utilizing the hydraulic cylinder component driven by the diesel engine oil, and avoids the condition of using an external air source, so that the arrangement structure of the whole machine is compact, and the reliability of the control system is improved.
Preferably, the second turbines are connected with the second compressors in a one-to-one correspondence.
Preferably, the hydraulic oil circuit further comprises a driving mechanism for controlling the opening or closing of the hydraulic oil circuit.
Preferably, the hydraulic cylinder assembly includes a first hydraulic cylinder for controlling the opening or closing of the air valve and a second hydraulic cylinder for controlling the opening or closing of the exhaust gas valve.
Preferably, the drive mechanism includes a first drive device for driving the first hydraulic cylinder and a second drive device for driving the second hydraulic cylinder.
Preferably, the first drive means is a solenoid valve and/or the second drive means is a solenoid valve.
Preferably, the drive mechanism includes a third drive device for driving the first hydraulic cylinder and the second hydraulic cylinder.
Preferably, the third driving means is a solenoid valve.
In another aspect, the utility model also provides a diesel engine comprising a sequential boost control system as defined in any one of the preceding claims.
Drawings
FIG. 1 is a schematic diagram of a sequential boost control system according to the present application;
fig. 2 is another schematic diagram of a sequential turbocharging control system according to the present application.
In the figure:
1-a first compressor; 2-a first air intake duct; 3, an intercooler; 4-a cylinder; 5-an exhaust manifold; 6-a first turbine; 7-a first exhaust duct; 8-a second compressor; 9-a second air inlet duct; 10-an air valve; 11-a second turbine; 12-a second exhaust duct; 13-an exhaust valve; 14-a first hydraulic cylinder; 15-a second hydraulic cylinder; 16-a first drive; 17-a second drive; 18-third drive means.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1 or fig. 2, the present invention provides a sequential supercharging control system, including:
the combustion engine comprises a plurality of first gas compressors 1 connected in parallel, wherein each first gas compressor 1 is communicated with an intercooler 3 through a first gas inlet pipeline 2, and the intercooler 3 is communicated with a cylinder 4 for combustion;
an exhaust manifold 5 communicating with the cylinders 4;
the first turbines 6 are connected with the first compressors 1 in a one-to-one correspondence mode, and the first turbines 6 are communicated with the exhaust manifold 5 through first exhaust pipelines 7 respectively;
the second air compressor 8 is connected with the first air compressor 1 in parallel, the second air compressor 8 is communicated with the intercooler 3 through a second air inlet pipeline 9, and an air valve 10 is arranged on the second air inlet pipeline 9;
a second turbine 11 connected to the second compressor 8, the second turbine 11 being in communication with the exhaust manifold 5 via a second exhaust duct 12, the second exhaust duct 12 being provided with a wastegate 13;
a hydraulic cylinder assembly for controlling the opening and closing of the air valve 10 and the exhaust valve 13;
and an oil pipeline (not shown in the figure) communicated with the oil pump, wherein a hydraulic oil pipeline is formed in the oil pipeline, and the hydraulic oil pipeline is used for driving the hydraulic cylinder assembly to control the opening or closing of the air valve 10 and the waste gas valve 13.
According to the sequential pressurization control system, when the diesel engine works normally, the first air compressor 1 and the first turbine 6 are started, when pressurization is needed along with the increase of the rotating speed and the load of the diesel engine, the air valve 10 and the waste gas valve 13 are started, so that the second air compressor 8 and the second turbine 11 are enabled to work, and as the hydraulic cylinder assembly for controlling the opening of the air valve 10 and the waste gas valve 13 is controlled through the hydraulic oil circuit, external air source control is not needed, only diesel engine oil is needed to be used for driving, the reliability of the control system is improved, the arrangement of the whole machine is compact, and the arrangement of the diesel engine on a ship with a narrow space is facilitated.
Therefore, the sequential supercharging control system provided by the utility model controls the opening or closing of the air valve 10 and the exhaust gas valve 13 by using the hydraulic cylinder assembly driven by the diesel engine oil, and avoids the condition of using an external air source, so that the arrangement structure of the whole machine is compact, and the reliability of the control system is improved.
The first compressor 1 is connected to the first turbine 6 by a shaft, the second compressor 8 is also connected to the second turbine 11 by a shaft, and, optionally, the second compressors 8 are connected to the second turbines 11 in a one-to-one correspondence, i.e. each second compressor 8 forms a supercharger in combination with a corresponding second turbine 11, in order to better control the process of successive superchargings.
It should be noted that the first turbine 6 may be in communication with the exhaust manifold 5 via a first exhaust duct 7, and when the space inside the control system is taken into account, the first exhaust duct 7 may be omitted, i.e. the first turbine 6 is in direct communication with the exhaust manifold 5.
In one implementation, as shown in fig. 1, the hydraulic cylinder assembly may include a first hydraulic cylinder 14 for controlling the opening or closing of the air valve 10 and a second hydraulic cylinder 15 for controlling the opening or closing of the waste gas valve 13, that is, the air valve 10 and the waste gas valve 13 are respectively controlled by the first hydraulic cylinder 14 and the second hydraulic cylinder 15, and when the supercharger needs to be opened, the first hydraulic cylinder 14 and the second hydraulic cylinder 15 may be operated simultaneously, or the second hydraulic cylinder 15 may be controlled to operate slightly later than the first hydraulic cylinder 14.
Further, the sequential pressurization control system further comprises a driving mechanism for controlling the opening or closing of the hydraulic oil circuit, namely the driving mechanism can control the action of the hydraulic cylinder assembly.
In one implementation, the driving mechanism may include a first driving device 16 for driving the first hydraulic cylinder 14 to move and a second driving device 17 for driving the second hydraulic cylinder 15 to move, that is, the first hydraulic cylinder 14 and the second hydraulic cylinder 15 are driven by the first driving device 16 and the second driving device 17, respectively, so as to achieve precise control. As an alternative, the first driving device 16 may be a solenoid valve, the second driving device 17 may also be a solenoid valve, and further, the solenoid valve may be a reversing solenoid valve.
In another implementation, the driving mechanism may include a third driving device 18 capable of driving both the first hydraulic cylinder 14 and the second hydraulic cylinder 15, that is, the first hydraulic cylinder 14 and the second hydraulic cylinder 15 are simultaneously driven by the third driving device 18, so as to save the internal space, wherein, as an alternative, the third driving device 18 may be a solenoid valve, and further, the solenoid valve may be a reversing solenoid valve.
Based on the same invention idea, the utility model can also provide a diesel engine, which comprises the sequential pressurization control system in any embodiment of the utility model, and the sequential pressurization control system realizes pressurization through the hydraulic cylinder component driven by the diesel engine oil, does not need an external air source, improves the reliability of the control system, and saves a pneumatic control mechanism, so that the whole arrangement is compact, the structure is simple, the whole volume of the diesel engine can be reduced, and the diesel engine can be arranged on a ship with narrow space conveniently.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A sequential boost control system, comprising:
the system comprises a plurality of first gas compressors connected in parallel, wherein each first gas compressor is communicated with an intercooler through a first gas inlet pipeline, and the intercooler is communicated with a cylinder for combustion;
an exhaust manifold in communication with the cylinders;
the first turbines are connected with the first gas compressors in a one-to-one correspondence mode and are respectively communicated with the exhaust main pipe through first exhaust pipelines;
the second air compressor is connected with the first air compressor in parallel and communicated with the intercooler through a second air inlet pipeline, and an air valve is arranged on the second air inlet pipeline;
the second turbine is connected with the second compressor and communicated with the exhaust manifold through a second exhaust pipeline, and the second exhaust pipeline is provided with a waste gas valve;
the hydraulic cylinder assembly is used for controlling the opening or closing of the air valve and the exhaust gas valve;
and the hydraulic oil way is used for driving the hydraulic cylinder assembly to control the opening or closing of the air valve and the waste gas valve.
2. A sequential turbocharging control system according to claim 1, wherein said second turbine is connected to said second compressor in a one-to-one correspondence.
3. A sequential boost control system according to claim 1, further comprising a drive mechanism for controlling the opening or closing of the hydraulic circuit.
4. A sequential boost control system according to claim 3, wherein the hydraulic cylinder assembly comprises a first hydraulic cylinder for controlling the opening or closing of the air valve and a second hydraulic cylinder for controlling the opening or closing of the waste gas valve.
5. A sequential boost control system according to claim 4, characterised in that the drive mechanism comprises a first drive means for driving the first hydraulic cylinder and a second drive means for driving the second hydraulic cylinder.
6. A sequential boost control system according to claim 5, characterised in that the first drive means is a solenoid valve and/or the second drive means is a solenoid valve.
7. A sequential boost control system according to claim 4, characterised in that the drive mechanism comprises a third drive means for driving the first and second hydraulic cylinders.
8. A sequential boost control system according to claim 7, characterised in that the third drive means is a solenoid valve.
9. A diesel engine comprising a sequential boost control system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121000935.1U CN215633313U (en) | 2021-05-11 | 2021-05-11 | Successive supercharging control system and diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121000935.1U CN215633313U (en) | 2021-05-11 | 2021-05-11 | Successive supercharging control system and diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633313U true CN215633313U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121000935.1U Active CN215633313U (en) | 2021-05-11 | 2021-05-11 | Successive supercharging control system and diesel engine |
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|---|---|
| CN (1) | CN215633313U (en) |
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2021
- 2021-05-11 CN CN202121000935.1U patent/CN215633313U/en active Active
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