CN210370964U - Dual-mode air inlet system - Google Patents
Dual-mode air inlet system Download PDFInfo
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- CN210370964U CN210370964U CN201921462536.XU CN201921462536U CN210370964U CN 210370964 U CN210370964 U CN 210370964U CN 201921462536 U CN201921462536 U CN 201921462536U CN 210370964 U CN210370964 U CN 210370964U
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Abstract
The utility model provides a double mode air inlet system, it includes: the air conditioner comprises an air inlet air conditioner, wherein a variable frequency fan and a controller are arranged in the air inlet air conditioner, and the variable frequency fan is electrically connected with the controller; one end of the first air supply pipe is connected with an air outlet of the air inlet air conditioner, a first air supply opening is formed at the other end of the first air supply pipe, a first adjusting valve is arranged at the first air supply opening, and the first adjusting valve is electrically connected with the controller; and one end of the second air supply pipe is connected to the first air supply pipe, the other end of the second air supply pipe forms a second air supply outlet, an atmospheric pressure sensor and a second regulating valve are arranged on the second air supply pipe, and the atmospheric pressure sensor and the second regulating valve are respectively and electrically connected with the controller. The utility model provides a double mode air inlet system can realize that the open type admits air and the two kinds of modes of admitting air of the formula of closing air to satisfy the different demands of admitting air in the engine test process.
Description
Technical Field
The utility model belongs to the technical field of the engine test and specifically relates to a dual mode air inlet system is related to.
Background
In the tests of the power performance and the emission performance of the engine, the air inlet air conditioner is required to provide constant-temperature, constant-humidity and constant-pressure air inlet for the engine.
The general air intake air conditioner is an open type, and supplies air to the engine through an air pipe. Because the air-intake air conditioner is of an open type, the air-intake pressure is close to the ambient atmospheric pressure, and if the local atmospheric pressure does not reach the standard atmospheric pressure, the test results of the power performance and the emission data of the engine can be influenced.
In order to reduce the influence of the performance deviation of the engine caused by different atmospheric pressures in the development and development tests on the tests, an intake pressure control system needs to be improved or added to meet different intake requirements in the engine testing process.
SUMMERY OF THE UTILITY MODEL
The utility model provides an engine oil temperature automatic control device, its detailed technical scheme as follows:
a dual mode air intake system, comprising:
the air conditioner comprises an air inlet air conditioner, wherein a variable frequency fan and a controller are arranged in the air inlet air conditioner, and the variable frequency fan is electrically connected with the controller;
one end of the first air supply pipe is connected with an air outlet of the air inlet air conditioner, a first air supply opening is formed at the other end of the first air supply pipe, a first adjusting valve is arranged at the first air supply opening, and the first adjusting valve is electrically connected with the controller;
and one end of the second air supply pipe is connected to the first air supply pipe, the other end of the second air supply pipe forms a second air supply outlet, an atmospheric pressure sensor and a second regulating valve are arranged on the second air supply pipe, and the atmospheric pressure sensor and the second regulating valve are respectively and electrically connected with the controller.
In some embodiments, a buffer tank is arranged on the first air supply pipe, and the buffer tank is located between the air outlet of the air inlet air conditioner and the joint of the first air supply pipe and the second air supply pipe.
In some embodiments, a pressure regulating valve is disposed on the buffer tank.
In some embodiments, a temperature adjusting device and a humidity adjusting device which are electrically connected with the controller are arranged in the air inlet air conditioner; and a temperature and humidity sensor is arranged at the position, close to the air inlet air conditioner, of the first air supply pipe and is electrically connected with the controller.
In some embodiments, an air gauge is disposed in the second air supply pipe at a position close to the second air supply opening.
In some embodiments, the first regulator valve is a pneumatic regulator butterfly valve and the second regulator valve is an electric regulator butterfly valve.
Compared with the prior art, the utility model provides a dual mode air inlet system can realize that the open type admits air and the two kinds of modes of admitting air of the formula of closing to satisfy the different demands of admitting air in the engine test process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings which are needed in the embodiments and are practical will be briefly described below and will be obvious, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. Wherein the content of the first and second substances,
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The embodiment of the utility model provides a dual mode air inlet system includes air inlet air conditioner 1, first blast pipe 3 and second blast pipe 6, wherein:
the air inlet air conditioner 1 is internally provided with a variable frequency fan 11 and a controller 12, and the variable frequency fan 11 is electrically connected with the controller 12. One end of the first air supply pipe 3 is connected with an air outlet of the air inlet air conditioner 1, the other end of the first air supply pipe 3 forms a first air supply outlet, a first adjusting valve 5 is arranged at the position of the first air supply outlet, and the first adjusting valve 5 is electrically connected with the controller 12. One end of the second air supply pipe 6 is connected to the first air supply pipe 3, the other end of the second air supply pipe 6 forms a second air supply opening, an atmospheric pressure sensor 7 and a second regulating valve 8 are arranged on the second air supply pipe 6, and the atmospheric pressure sensor 7 and the second regulating valve 8 are respectively and electrically connected with a controller 12.
Optionally, the first regulating valve 5 is a pneumatic regulating butterfly valve, and the second regulating valve 8 is an electric regulating butterfly valve.
Through setting up first blast pipe 3 and second blast pipe 6, the utility model discloses double mode air inlet system can realize following two kinds of modes of admitting air:
when the engine has no requirement on the intake pressure, an open intake mode is adopted, specifically: the controller 12 opens the first regulating valve 5 and closes the second regulating valve 8. The controller 12 starts the variable frequency fan 11, and the airflow in the air inlet air conditioner 1 is discharged through the first air supply pipe 3 and directly enters the test space where the engine is located.
When the engine has special requirements on the air inlet pressure (if the pressure in the test space where the engine is located needs to be adjusted to be standard atmospheric pressure), a closed air inlet mode is adopted, specifically: the controller 12 opens the second regulating valve 8 and closes the first regulating valve 5. The controller 12 starts the variable frequency fan 11, and the airflow in the air inlet air conditioner 1 is discharged through the first air supply pipe 3 and the second air supply pipe in sequence and directly enters the test space where the engine is located.
In the process, the atmospheric pressure sensor 7 continuously collects the atmospheric pressure in the test space where the engine is located and transmits the atmospheric pressure to the controller 12 through a pressure signal, and the controller 12 correspondingly adjusts the flux of the second regulating valve 8 according to the pressure difference between the received atmospheric pressure value and the standard atmospheric pressure value so as to adjust the air supply amount until the atmospheric pressure in the test space where the engine is located reaches the standard atmospheric pressure value.
In some test implementations, there are requirements for the temperature and humidity of the intake air stream. Therefore, it is preferable that a temperature control device and a humidity control device electrically connected to the controller 12 are provided in the intake air conditioner 1. A temperature and humidity sensor 2 is arranged at the position, close to the air inlet air conditioner 1, of the first air supply pipe 3, and the temperature and humidity sensor 2 is electrically connected with the controller 12. The temperature and humidity sensor 2 detects the temperature and humidity of the air flow in the first air supply pipe 3 and transmits temperature and humidity signals to the controller 12, and the controller 12 correspondingly controls the temperature adjusting device and the humidity adjusting device according to the difference between the received temperature and humidity value and the required temperature and humidity value until the temperature and humidity of the air flow in the first air supply pipe 3 reach the preset required temperature and humidity value.
Optionally, a buffer tank 4 is arranged on the first air supply pipe 3, and the buffer tank 4 is located between the air outlet of the air inlet air conditioner 1 and the joint of the first air supply pipe 3 and the second air supply pipe 6. The buffer tank 4 can stabilize the air pressure in the first air supply duct 3.
Optionally, an air meter 9 electrically connected to the controller 12 is disposed on the second air supply pipe 6 near the second air supply outlet. The air meter 9 is used to meter the flow rate of the air supplied to the second air supply duct 6, thereby achieving accurate air intake in the closed intake mode.
The invention has been described above with a certain degree of particularity and detail. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.
Claims (6)
1. A dual mode air intake system, comprising:
the air conditioner comprises an air inlet air conditioner, wherein a variable frequency fan and a controller are arranged in the air inlet air conditioner, and the variable frequency fan is electrically connected with the controller;
one end of the first air supply pipe is connected with an air outlet of the air inlet air conditioner, a first air supply opening is formed at the other end of the first air supply pipe, a first adjusting valve is arranged at the first air supply opening, and the first adjusting valve is electrically connected with the controller;
and one end of the second air supply pipe is connected to the first air supply pipe, the other end of the second air supply pipe forms a second air supply outlet, an atmospheric pressure sensor and a second regulating valve are arranged on the second air supply pipe, and the atmospheric pressure sensor and the second regulating valve are respectively and electrically connected with the controller.
2. The dual mode air intake system of claim 1, wherein a surge tank is provided in the first air supply duct between an outlet of the air conditioner and a junction of the first air supply duct and the second air supply duct.
3. The dual mode air intake system of claim 2 wherein the surge tank is provided with a pressure regulating valve.
4. The dual mode air intake system of claim 1,
a temperature adjusting device and a humidity adjusting device which are electrically connected with the controller are arranged in the air inlet air conditioner;
and a temperature and humidity sensor is arranged at the position, close to the air inlet air conditioner, of the first air supply pipe and is electrically connected with the controller.
5. The dual mode air inlet system as recited in claim 1 wherein an air gauge is disposed in said second air supply duct adjacent said second air supply opening.
6. The dual mode air intake system of claim 1, wherein the first regulator valve is a pneumatic regulator butterfly valve and the second regulator valve is an electric regulator butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462536.XU CN210370964U (en) | 2019-09-04 | 2019-09-04 | Dual-mode air inlet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462536.XU CN210370964U (en) | 2019-09-04 | 2019-09-04 | Dual-mode air inlet system |
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| Publication Number | Publication Date |
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| CN210370964U true CN210370964U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921462536.XU Active CN210370964U (en) | 2019-09-04 | 2019-09-04 | Dual-mode air inlet system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578633A (en) * | 2019-09-04 | 2019-12-17 | 无锡沃尔福汽车技术有限公司 | Dual-mode air inlet system |
| CN110578633B (en) * | 2019-09-04 | 2024-07-09 | 无锡沃尔福汽车技术有限公司 | Dual-mode air inlet system |
-
2019
- 2019-09-04 CN CN201921462536.XU patent/CN210370964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578633A (en) * | 2019-09-04 | 2019-12-17 | 无锡沃尔福汽车技术有限公司 | Dual-mode air inlet system |
| CN110578633B (en) * | 2019-09-04 | 2024-07-09 | 无锡沃尔福汽车技术有限公司 | Dual-mode air inlet system |
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