CN113550822B - Anti-surge system, engine and vehicle - Google Patents
Anti-surge system, engine and vehicle Download PDFInfo
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- CN113550822B CN113550822B CN202110774101.4A CN202110774101A CN113550822B CN 113550822 B CN113550822 B CN 113550822B CN 202110774101 A CN202110774101 A CN 202110774101A CN 113550822 B CN113550822 B CN 113550822B
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- supercharger
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/023—Details or means for fluid extraction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The invention discloses an anti-surge system, an engine and a vehicle, and belongs to the technical field of vehicles. The anti-surge system includes: the device comprises a supercharger, a first communication pipe, a vacuum pump, an electromagnetic valve and an air cylinder; the first end of the first communication pipe is communicated with an air outlet of the supercharger, and the second end of the first communication pipe is communicated with the engine; a first port of the solenoid valve may be communicated with the first communication pipe, a second port of the solenoid valve may be communicated with the vacuum pump, and a third port of the solenoid valve may be communicated with an air inlet of the supercharger; the vacuum pump is communicated with the air storage cylinder. The anti-surge system, the engine and the vehicle can effectively avoid the surge of the supercharger.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an anti-surge system, an engine and a vehicle.
Background
Surge is one of the common failures of superchargers, which manifests as severe airflow fluctuations in the compressor, with a loud roar. The gas flow is manifested in the form of periodic, intense pulses, i.e. sharp changes in pressure, velocity and flow rate of the gas flow. When the supercharger surging, the working condition of the main engine is reduced, and the speed is automatically reduced. When the surge region cannot be crossed, the main engine can only operate with reduced power, and large economic loss is caused. The principle that the supercharger generates surge is complex, when the compressor of the supercharger is in a low-flow high-backpressure working state, an attack angle is generated between the flow direction of air entering the compressor of the supercharger and the inlet of a compressor blade, when the angle is large to a certain degree, the air flow is seriously separated from the compressor blade of the supercharger, and the condition can be formed at the diffuser blade, so that the surge phenomenon is formed.
In the prior art, a pressure relief channel is arranged in parallel for the supercharger, a pressure relief valve is arranged on the pressure relief channel, and after the accelerator of a vehicle is suddenly accelerated and released, the pressure behind the supercharger is relieved. However, since the relief valve requires a certain response time from the reception of the signal to the opening thereof, the surge phenomenon cannot be eliminated well.
Disclosure of Invention
The invention provides an anti-surge system, an engine and a vehicle, which solve or partially solve the technical problem that the surge phenomenon of a supercharger cannot be well eliminated by adopting a pressure relief channel and a pressure relief valve for the supercharger in the prior art.
In order to solve the above technical problem, the present invention provides an anti-surge system, which is communicated with an engine, the anti-surge system comprising: the device comprises a supercharger, a first communication pipe, a vacuum pump, an electromagnetic valve and an air cylinder; the first end of the first communication pipe is communicated with an air outlet of the supercharger, and the second end of the first communication pipe is communicated with the engine; a first port of the solenoid valve may be communicated with the first communication pipe, a second port of the solenoid valve may be communicated with the vacuum pump, and a third port of the solenoid valve may be communicated with an air inlet of the supercharger; the vacuum pump is communicated with the air storage cylinder.
Further, a throttle valve is arranged on the first communication pipe, and the throttle valve is arranged between the first port of the electromagnetic valve and the engine.
Further, the anti-surge system further comprises: a controller; the controller is connected with the throttle valve and the electromagnetic valve; the controller receives an opening signal sent by the throttle valve, and sends a control signal to the electromagnetic valve according to the opening signal.
Further, an intercooler is arranged on the first communication pipe; the intercooler is disposed between the throttle valve and the first port of the solenoid valve.
Further, the solenoid valve includes a three-way valve.
Further, the anti-surge system further comprises: a pressure relief device; the pressure relief device comprises: a pressure relief pipe and an electronic pressure relief valve; an air inlet of the pressure relief pipe is communicated with the first communication pipe, an air outlet of the pressure relief pipe is communicated with an air inlet of the supercharger, and the air inlet of the pressure relief pipe is arranged between the first port of the electromagnetic valve and the air outlet of the supercharger; the electronic pressure relief valve is arranged on the pressure relief pipe.
Further, the anti-surge system further comprises: an intake manifold; a first end of the intake manifold is communicated with a second end of the first communication pipe, and a second end of the intake manifold is communicated with the engine.
Further, the anti-surge system further comprises: an air filter; the air filter is communicated with an air inlet of the supercharger.
Based on the same inventive concept, the application also provides an engine comprising the anti-surge system.
Based on the same inventive concept, the application also provides a vehicle comprising the engine.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the first end of the first communication pipe is communicated with the air outlet of the supercharger, the second end of the first communication pipe is communicated with the engine, the first port of the electromagnetic valve can be communicated with the first communication pipe, the second port of the electromagnetic valve is communicated with the vacuum pump, the third port of the electromagnetic valve can be communicated with the air inlet of the supercharger, and the vacuum pump is communicated with the air storage cylinder, when the vehicle accelerates suddenly and the accelerator is loosened, instantaneous high pressure can be generated between the air outlet of the supercharger and the engine, the vacuum pump is started to extract gas between the air outlet of the supercharger and the engine, the gas between the air outlet of the supercharger and the engine sequentially passes through the first communication pipe, the first port of the electromagnetic valve, the second port of the electromagnetic valve and the vacuum pump to enter the air storage cylinder, the pressure between the air outlet of the supercharger and the engine is reduced, the supercharger can be effectively avoided, accelerated wear and fatigue of the supercharger can be prevented, the service life of the supercharger can be ensured, when the vehicle accelerates suddenly, the vacuum pump is started, the gas in the air storage cylinder sequentially passes through the vacuum pump, the second port of the electromagnetic valve, the third port of the electromagnetic valve and the air inlet of the supercharger to enter the supercharger, the air inlet efficiency of the supercharger can be effectively increased, the load of the supercharger is reduced, the oil consumption is reduced, and the performance of the engine is improved.
Drawings
Fig. 1 is a schematic structural diagram of an anti-surge system according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, an anti-surge system according to an embodiment of the present invention is in communication with an engine 1, the anti-surge system including: a booster 2, a first communicating pipe 3, a vacuum pump 4, an electromagnetic valve 5 and an air cylinder 6.
A first end of the first communication pipe 3 communicates with the air outlet of the supercharger 2, and a second end of the first communication pipe 3 communicates with the engine 1.
A first port of the solenoid valve 5 may communicate with the first communication pipe 3, a second port of the solenoid valve 5 communicates with the vacuum pump 4, and a third port of the solenoid valve 5 may communicate with the intake port of the supercharger 2.
The vacuum pump 4 is communicated with the air storage cylinder 6.
According to the embodiment of the application, the first end of the first communication pipe 3 is communicated with the gas outlet of the supercharger 2, the second end of the first communication pipe 3 is communicated with the engine 1, the first port of the electromagnetic valve 5 can be communicated with the first communication pipe 3, the second port of the electromagnetic valve 5 is communicated with the vacuum pump 4, the third port of the electromagnetic valve 5 can be communicated with the gas inlet of the supercharger 2, and the vacuum pump 4 is communicated with the gas storage cylinder 6, so that after the vehicle is accelerated suddenly, when the gas is released, instantaneous high pressure can be generated between the gas outlet of the supercharger 2 and the engine 1, the vacuum pump 4 is started, gas between the gas outlet of the supercharger 2 and the engine 1 is extracted, the gas between the gas outlet of the supercharger 2 and the engine 1 sequentially passes through the first communication pipe 3, the first port of the electromagnetic valve 5, the second port of the electromagnetic valve 5 and the vacuum pump 4 enter the gas storage cylinder 6, the pressure between the gas outlet of the supercharger 2 and the engine is reduced, the supercharger 2 can be effectively prevented from generating accelerated wear and fatigue, the service life of the supercharger 2 is ensured, when the vehicle is accelerated, the vacuum pump 4 is accelerated, the gas in the gas vacuum pump 4, the third port of the electromagnetic valve 5, the gas storage cylinder 5, the effective load of the supercharger 2 can be increased, and the effective load of the supercharger can be reduced, and the efficiency of the supercharger can be reduced, and the engine can be reduced.
Specifically, the first port of the solenoid valve 5 communicates with the first communication pipe 3 through the second communication pipe 7 for conveying gas.
Specifically, the second port of the solenoid valve 5 is communicated with the vacuum pump 4 through a third communicating pipe 8, and the vacuum pump 4 is communicated with the gas cylinder 6 through a fourth communicating pipe 9 for gas transportation.
Specifically, the first communication pipe 2 is provided with a throttle valve 10, the throttle valve 10 is provided between the first port of the electromagnetic valve 5 and the engine 1, and the amount of air taken into the engine 1 is controlled by the throttle valve 10.
Specifically, the anti-surge system further comprises: and a controller.
The controller is connected to the throttle valve 10 and the solenoid valve 5.
The controller receives the opening degree signal sent by the throttle valve 10, and sends a control signal to the electromagnetic valve 10 according to the opening degree signal.
After the vehicle is accelerated suddenly and the throttle is released, at the moment, the throttle 10 is closed, namely the opening of the throttle 10 is minimum, instantaneous high pressure can be generated between the air outlet of the supercharger 2 and the engine 1, the controller receives an opening signal sent by the throttle 10 and sends a control signal to the electromagnetic valve 10 according to the opening signal, the first port of the electromagnetic valve 5 and the second port of the electromagnetic valve 5 are opened, the third port of the electromagnetic valve 5 is closed, the vacuum pump 4 is started to extract gas between the air outlet of the supercharger 2 and the engine 1, the gas between the air outlet of the supercharger 2 and the engine 1 sequentially passes through the first communication pipe 3, the first port of the electromagnetic valve 5, the second port of the electromagnetic valve 5 and the vacuum pump 4 to enter the gas storage cylinder 6, the pressure between the air outlet of the supercharger 2 and the engine is reduced, and the supercharger surge can be effectively avoided.
When the vehicle is accelerated suddenly, namely the performance requirement of the vehicle on the engine 1 is increased, the supercharger 2 is transited from a low-rotating-speed working condition to a high-rotating-speed working condition, but due to the limitation of factors such as the rotational inertia and the efficiency of a rotor of the supercharger 2 in the prior art, the air compressor of the supercharger 2 cannot rapidly increase the air inflow required by the internal combustion engine. Therefore, the accelerator of the wheel is stepped on to the bottom, at the moment, the throttle valve 10 is opened, namely, the opening degree of the throttle valve 10 reaches the maximum, the controller receives an opening degree signal sent by the throttle valve 10, the controller sends a control signal to the electromagnetic valve 10 according to the opening degree signal, the third port of the electromagnetic valve 5 and the second port of the electromagnetic valve 5 are opened, the first port of the electromagnetic valve 5 is closed, the vacuum pump 4 is started, the gas in the gas storage cylinder 6 sequentially passes through the vacuum pump 4, the second port of the electromagnetic valve 5, the third port of the electromagnetic valve 5 and the air inlet of the supercharger 2 to enter the supercharger, the gas compressor of the supercharger 2 can rapidly increase the air inflow required by the internal combustion engine, the air inflow efficiency of the supercharger 2 can be effectively increased, the load of the supercharger is reduced, the oil consumption is reduced, and the performance of the engine 1 is improved.
Specifically, an intercooler 11 is provided on the first communication pipe 3, and the intercooler 11 is provided between the throttle valve 10 and the first port of the electromagnetic valve 5.
Since the supercharger 2 has a high temperature and the gas passing through the supercharger 2 has a high temperature, the temperature of the gas is reduced by the intercooler 11, so that the intake air amount of the engine 1 can be ensured and knocking can be suppressed.
Specifically, the solenoid valve 5 includes a three-way valve, a first port of which may be communicated with the first communication pipe 3, a second port of which may be communicated with the vacuum pump 4, and a third port of which may be communicated with the air inlet of the supercharger 2, and the flow of gas is controlled by the three-way valve.
Specifically, the anti-surge system further comprises: a pressure relief device 12.
The pressure relief device 12 includes: a pressure relief pipe 12-1 and an electronic pressure relief valve 12-2.
An air inlet of the pressure relief pipe 12-1 is communicated with the first communication pipe 3, an air outlet of the pressure relief pipe 12-1 is communicated with an air inlet of the supercharger 2, and an air inlet of the pressure relief pipe 12-1 is arranged between a first port of the electromagnetic valve 5 and an air outlet of the supercharger 2.
An electronic pressure relief valve 12-2 is arranged on the pressure relief pipe 12-1.
When the vehicle is accelerated suddenly and the accelerator is loosened, instantaneous high pressure is generated between the air outlet of the supercharger 2 and the engine 1, pressure difference is generated between the air outlet of the supercharger 2 and the air inlet of the supercharger 2, the electronic pressure release valve 12-2 is opened automatically, and the gas between the air outlet of the supercharger 2 and the engine 1 reaches the air inlet of the supercharger 2 through the pressure release pipe 12-1 and is discharged, so that the pressure between the air outlet of the supercharger 2 and the engine is further reduced, the surge of the supercharger can be effectively avoided, the accelerated wear and fatigue of the supercharger 2 are prevented, and the service life of the supercharger 2 is ensured.
In the present embodiment, the third port of the electromagnetic valve 5 is communicated with the pressure relief pipe 12-1 through a fifth communication pipe 13, and the communication position of the fifth communication pipe 13 and the pressure relief pipe 12-1 is arranged between the air outlet of the pressure relief pipe 12-1 and the electronic pressure relief valve 12-2, so as to prevent the electronic pressure relief valve 12-2 from interfering with the air supply of the third port of the electromagnetic valve 5 to the supercharger 2.
Specifically, the anti-surge system further comprises: an intake manifold 14.
A first end of the intake manifold 14 communicates with a second end of the first communication pipe 3, a second end of the intake manifold 14 communicates with the engine 1, and the gas in the first communication pipe 3 is distributed to different cylinders of the engine 1 through the intake manifold 14, while stabilizing the pressure of the cylinders of the engine 1.
Specifically, the anti-surge system further comprises: an air filter 15.
Based on the same inventive concept, the present application further provides an engine, the engine employs the anti-surge system, the specific structure of the anti-surge system refers to the above embodiments, and since the anti-surge system employs all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are provided, and details are not repeated herein.
Based on the same inventive concept, the present application further provides a vehicle, the vehicle employs the engine, the specific structure of the engine refers to the above embodiments, and since the engine employs all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is provided herein.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. An anti-surge system in communication with an engine, the anti-surge system comprising: the device comprises a supercharger, a first communication pipe, a vacuum pump, an electromagnetic valve and an air cylinder;
the first end of the first communication pipe is communicated with an air outlet of the supercharger, and the second end of the first communication pipe is communicated with the engine;
a first port of the solenoid valve may be in communication with the first communication pipe, a second port of the solenoid valve may be in communication with the vacuum pump, a third port of the solenoid valve may be in communication with the air inlet of the supercharger, and the solenoid valve may include a three-way valve;
the vacuum pump is communicated with the air storage cylinder;
a throttle valve is arranged on the first communication pipe and is arranged between a first port of the electromagnetic valve and the engine;
the anti-surge system further comprises: a controller;
the controller is connected with the throttle valve and the electromagnetic valve;
the controller receives an opening signal sent by the throttle valve, and sends a control signal to the electromagnetic valve according to the opening signal.
2. The anti-surge system of claim 1, wherein:
an intercooler is arranged on the first communication pipe;
the intercooler is disposed between the throttle valve and the first port of the solenoid valve.
3. The anti-surge system of claim 1, further comprising: a pressure relief device;
the pressure relief device comprises: a pressure relief pipe and an electronic pressure relief valve;
an air inlet of the pressure relief pipe is communicated with the first communication pipe, an air outlet of the pressure relief pipe is communicated with an air inlet of the supercharger, and the air inlet of the pressure relief pipe is arranged between the first port of the electromagnetic valve and the air outlet of the supercharger;
the electronic pressure relief valve is arranged on the pressure relief pipe.
4. The anti-surge system of claim 1, further comprising: an intake manifold;
a first end of the intake manifold is in communication with a second end of the first communication pipe, and a second end of the intake manifold is in communication with the engine.
5. The anti-surge system of claim 1, further comprising: an air filter;
the air filter is communicated with an air inlet of the supercharger.
6. An engine comprising an anti-surge system according to any of claims 1-5.
7. A vehicle characterized by comprising the engine of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110774101.4A CN113550822B (en) | 2021-07-08 | 2021-07-08 | Anti-surge system, engine and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110774101.4A CN113550822B (en) | 2021-07-08 | 2021-07-08 | Anti-surge system, engine and vehicle |
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| CN113550822A CN113550822A (en) | 2021-10-26 |
| CN113550822B true CN113550822B (en) | 2022-12-06 |
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| CN202110774101.4A Active CN113550822B (en) | 2021-07-08 | 2021-07-08 | Anti-surge system, engine and vehicle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198283A (en) * | 2021-12-24 | 2022-03-18 | 山东凯恩真空技术有限公司 | Vacuum pump pressure reducing device |
| CN116181506A (en) * | 2023-03-24 | 2023-05-30 | 潍柴动力股份有限公司 | Engine air supply system control method, device and system |
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