CN215860461U - Pressurization control system with pressure release valve - Google Patents
Pressurization control system with pressure release valve Download PDFInfo
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- CN215860461U CN215860461U CN202122381797.2U CN202122381797U CN215860461U CN 215860461 U CN215860461 U CN 215860461U CN 202122381797 U CN202122381797 U CN 202122381797U CN 215860461 U CN215860461 U CN 215860461U
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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
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Abstract
The utility model discloses a pressurization control system with a pressure release valve, which comprises: brake gas jar, brake gas jar and booster. The integrated waste gas bypass control valve is connected with the brake gas tank through a first pipeline. The supercharger is connected with the integrated waste gas bypass control valve through a second pipeline. High-pressure gas in the brake gas tank sequentially enters the supercharger through the first pipeline, the integrated waste gas bypass control valve and the second pipeline. The integrated waste gas bypass control valve is internally provided with a pressure reducing module, and the pressure reducing module is used for reducing pressure of passing high-pressure gas. Therefore, the pressurization control system with the pressure release valve is simple and reasonable in structure, and reduces cost while considering the service life of parts.
Description
Technical Field
The utility model relates to the technical field of power machinery, in particular to a pressurization control system with a pressure release valve.
Background
The natural gas engine supercharging pressure usually adopts a closed-loop control mode, and the purpose of closed-loop control of the supercharging pressure is achieved by controlling the opening of a bypass valve of a supercharger, therefore, the natural gas engine is usually matched with a waste gas bypass control valve to control the opening of the bypass valve, the working principle of the waste gas bypass control valve is that the pressure at the bypass valve end of the supercharger is controlled through a duty ratio, a gas source is usually a brake gas tank or supercharging pressure, and the switch of the bypass valve of the supercharger is controlled by controlling the duty ratio of the waste gas bypass control valve according to a target supercharging pressure, so that the actual supercharging pressure value is consistent with a target value.
The waste gas bypass control valve is divided into two gas sources, one gas source is gas from the pressurized intercooling rear gas inlet header pipe, the advantages are that the pipeline arrangement is simple, the cost is low, the defect is that the water content in the pressurized intercooling gas source is more, when water and impurities enter the waste gas bypass control valve, water vapor easily causes the valve core to rust, the impurities easily cause the valve core to be stuck, and the pressurized pressure is out of control; and secondly, gas is taken from a brake gas tank of the whole vehicle, the air-assisted brake valve has the advantages that the air passing through the brake tank contains very little impurities, the service life of a valve core of the waste gas bypass control valve is prolonged, and the air passing through the brake tank needs a pressure reducer to reduce the pressure to a proper range for use because of a high-pressure state, and meanwhile, the pipeline is connected from a girder of the whole vehicle, so the cost is high.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressurization control system with a pressure release valve, which is simple and reasonable in structure, and reduces the cost while considering the service life of parts.
To achieve the above object, the present invention provides a boost control system having a pressure relief valve, including: brake gas jar, brake gas jar and booster. The integrated waste gas bypass control valve is connected with the brake gas tank through a first pipeline. The supercharger is connected with the integrated waste gas bypass control valve through a second pipeline. High-pressure gas in the brake gas tank sequentially enters the supercharger through the first pipeline, the integrated waste gas bypass control valve and the second pipeline. The integrated waste gas bypass control valve is internally provided with a pressure reducing module, and the pressure reducing module is used for reducing pressure of passing high-pressure gas.
In one embodiment of the present invention, the outlet of the integrated waste gas bypass control valve is integrated with a one-way membrane, and the one-way membrane is used for allowing gas to be discharged and not allowing impurities in the atmosphere to enter the integrated waste gas bypass control valve.
In an embodiment of the present invention, the integrated waste gate control valve further includes a bypass valve module connected to the pressure reducing module.
In one embodiment of the utility model, the bypass valve module is a pneumatic valve.
In an embodiment of the present invention, the integrated waste gate valve further includes a control valve module connected to the bypass valve module, and the control valve module is configured to control an opening of the bypass valve module.
In an embodiment of the present invention, the integrated waste gas bypass control valve further includes a controller connected to the control valve module, and the controller is configured to drive the control valve module and further control the opening of the bypass valve module.
In one embodiment of the present invention, the controller is electrically connected to the ECU.
In one embodiment of the utility model, when the engine speed or the fuel injection quantity exceeds a preset value, the ECU sends an early warning signal to the controller, and the controller controls the bypass valve module to open a preset angle through the control valve module.
Compared with the prior art, the pressurization control system with the pressure release valve has a simple and reasonable structure, and reduces the cost while considering the service life of parts.
Drawings
Fig. 1 is a schematic configuration diagram of a supercharging control system having a pressure relief valve according to an embodiment of the present invention.
Description of the main reference numerals:
1-brake gas tank, 2-integrated waste gas bypass control valve, 3-first pipeline, 4-supercharger and 5-second pipeline.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a schematic configuration diagram of a supercharging control system having a pressure relief valve according to an embodiment of the present invention. As shown in fig. 1, a supercharging control system having a pressure relief valve according to a preferred embodiment of the present invention includes: brake gas jar 1, integrated form waste gas bypass control valve 2 and booster 4. The integrated waste gas bypass control valve 2 is connected with the brake gas tank 1 through a first pipeline 3. The supercharger 4 is connected to the integrated waste gate control valve 2 via a second line 5. Wherein, the high-pressure gas in the brake gas tank 1 sequentially passes through the first pipeline 3, the integrated waste gas bypass control valve 2 and the second pipeline 5 to enter the supercharger 4. Wherein, the integrated waste gas bypass control valve 2 is internally provided with a pressure reducing module which is used for reducing the pressure of the passing high-pressure gas.
In an embodiment of the present invention, the outlet of the integrated waste gas bypass control valve 2 is integrated with a one-way membrane, and the one-way membrane is used to allow gas to be discharged, and not allow impurities in the atmosphere to enter the integrated waste gas bypass control valve 2.
In an embodiment of the present invention, the integrated waste gate valve 2 further includes a bypass valve module connected to the pressure reducing module. The bypass valve module is a pneumatic valve.
In an embodiment of the present invention, the integrated waste gate valve 2 further includes a control valve module connected to the bypass valve module, and the control valve module is configured to control an opening degree of the bypass valve module.
In an embodiment of the present invention, the integrated waste gas bypass control valve 2 further includes a controller connected to the control valve module, and the controller is configured to drive the control valve module and further control the opening of the bypass valve module.
In one embodiment of the present invention, the controller is electrically connected to the ECU. When the rotating speed or the fuel injection quantity of the engine exceeds a preset value, the ECU sends an early warning signal to the controller, and the controller controls the bypass valve module to open a preset angle through the control valve module.
In practical application, the pressure reducer and the waste gas bypass control valve are designed into a whole, the structure is compact, and the cost is lower than that of the single waste gas bypass control valve and the pressure reducer. According to the utility model, the high-pressure air is decompressed and the opening of the bypass valve of the supercharger 4 is controlled, only one air pipe is connected to the integrated waste gas bypass control valve 2 from the rear part of the whole vehicle brake air tank 1, so that one pipeline of two joint boxes is reduced, and the cost and the hidden danger of air leakage are further reduced.
Further, in order to avoid the backflow of the high-pressure gas, the outlet of the integrated waste gas bypass control valve 2 has a one-way membrane so that the high-pressure gas can flow only to the supercharger 4.
When the engine works specifically, the bypass valve module can be opened by a preset angle according to the condition that the average effective pressure of the engine is smaller than a preset value or the air pressure in the air inlet pipeline is higher than the preset value of the air pressure in the exhaust pipeline. The opening angle of the bypass valve module is determined according to the actual engine working requirement, and the utility model is not particularly limited.
As can be seen from the above description, in the boost control system with the pressure relief valve according to the embodiment of the present invention, the bypass valve module is appropriately opened by a certain angle according to a requirement under a suitable working condition, so that the supercharged intake air bypasses the exhaust pipe under the action of the pressure difference, and the exhaust flow and energy are increased after bypassing.
In order to further improve the reliability of the engine exhaust system, a bypass intercooler can be integrated in the integrated exhaust gas bypass control valve 2, so that high-pressure gas is cooled, and the purpose of improving the reliability of the exhaust system is achieved.
Further, a switch valve for opening and closing the bypass intercooler may be integrated in the integrated waste gas bypass control valve 2. By arranging the switch valve, the bypass intercooler can be selectively started or closed according to actual conditions.
The controller drives the control valve module to further control the opening of the bypass valve module, specifically, when the rotating speed or the fuel injection quantity of the engine exceeds a preset value, the controller controls the bypass valve module to open a preset angle, and of course, when the controller controls the bypass valve module to open, the corresponding preset value can be met simultaneously according to the fact that the rotating speed and the fuel injection quantity of the engine exceed the preset values. When the difference value exists between the temperature difference between the average exhaust temperature and the supercharged temperature and the target temperature difference, the controller adjusts the opening degree of the bypass valve module through a PI algorithm until the actual temperature difference is equal to the target temperature difference, and then closed-loop control is completed.
In a word, the pressurization control system with the pressure release valve is simple and reasonable in structure, and reduces cost while considering the service life of parts.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (8)
1. A pressurization control system having a pressure relief valve, comprising:
a brake gas tank;
the integrated waste gas bypass control valve is connected with the brake gas tank through a first pipeline; and
the supercharger is connected with the integrated exhaust gas bypass control valve through a second pipeline;
high-pressure gas in the brake gas tank sequentially passes through the first pipeline, the integrated waste gas bypass control valve and the second pipeline and enters a bypass valve in the supercharger;
the integrated waste gas bypass control valve is internally provided with a pressure reducing module, and the pressure reducing module is used for reducing the pressure of the high-pressure gas passing through.
2. The boost control system with pressure relief valve of claim 1, wherein the outlet of the integrated wastegate control valve is integrated with a one-way membrane, and the one-way membrane is configured to allow gas to escape without allowing impurities in the atmosphere to enter the integrated wastegate control valve.
3. The boost control system having a pressure relief valve of claim 2, wherein the integrated wastegate control valve further has a bypass valve module therein connected to the pressure reduction module.
4. The boost control system having a pressure relief valve of claim 3, wherein the bypass valve module is a pneumatic valve.
5. The boost control system having a pressure relief valve of claim 4, wherein the integrated wastegate control valve further has a control valve module therein connected to the bypass valve module for controlling the opening of the bypass valve module.
6. The boost control system having a pressure relief valve of claim 5, wherein the integrated wastegate control valve further comprises a controller connected to the control valve module, and the controller is configured to actuate the control valve module to control the opening of the bypass valve module.
7. The boost control system having a pressure relief valve of claim 6, wherein the controller is electrically connected to the ECU.
8. The boost control system having the pressure relief valve according to claim 7, wherein the ECU sends an early warning signal to the controller when an engine speed or an injected fuel amount exceeds a preset value, and the controller controls the bypass valve module to open a preset angle through the control valve module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122381797.2U CN215860461U (en) | 2021-09-29 | 2021-09-29 | Pressurization control system with pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122381797.2U CN215860461U (en) | 2021-09-29 | 2021-09-29 | Pressurization control system with pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860461U true CN215860461U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122381797.2U Active CN215860461U (en) | 2021-09-29 | 2021-09-29 | Pressurization control system with pressure release valve |
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| Country | Link |
|---|---|
| CN (1) | CN215860461U (en) |
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2021
- 2021-09-29 CN CN202122381797.2U patent/CN215860461U/en active Active
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