CN215633358U - Oil supply control system of test bed of aircraft engine and pipeline pressure regulating oil tank thereof - Google Patents
Oil supply control system of test bed of aircraft engine and pipeline pressure regulating oil tank thereof Download PDFInfo
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- CN215633358U CN215633358U CN202120232134.1U CN202120232134U CN215633358U CN 215633358 U CN215633358 U CN 215633358U CN 202120232134 U CN202120232134 U CN 202120232134U CN 215633358 U CN215633358 U CN 215633358U
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Abstract
The utility model provides an oil supply control system for an aircraft engine test bed, which comprises: the oil depot is used for providing fuel oil; the engine is arranged on the engine test bed; connect the oil depot with pipeline pressure regulating oil tank on the pipeline between the engine test bed, wherein pipeline pressure regulating oil tank receives fuel on the pipeline and including setting up at the air pressure adjusting device at its top and setting up the oil pressure sensor at its exit end, air pressure adjusting device with the oil pressure sensor electricity is connected, oil pressure sensor sensing the oil pressure value of the fuel of pipeline pressure regulating oil tank output, air pressure adjusting device follows oil pressure sensor receives the sensed oil pressure value and adjusts the oil pressure of the fuel of pipeline pressure regulating oil tank output according to the oil pressure value.
Description
Technical Field
The utility model relates to the field of aero-engines, in particular to an oil supply control system for an aero-engine test bed.
Background
During the ground bench test of the aircraft engine, the oil depot is required to supply fuel oil to the aircraft engine through the fuel oil supply system. A long oil supply pipeline (generally more than 20 meters) is arranged between the oil depot and the aircraft engine on the test bed, and the oil supply pipeline is connected with an inlet of a fuel booster pump of the aircraft engine and is controlled to be opened and closed by a gate valve. The oil depot provides adjustable oil supply pressure within a certain range, but the oil supply pressure of the oil depot is not adjustable in the process of an aeroengine test.
In the process of engine test run, the fuel supply pipe network supplies fuel to different test bed subsections, and different engines need different input oil pressures for debugging. The prior art can not meet the individual regulation of the engine, and ensures that the oil pressure of an engine inlet in the engine test run process always meets the technical requirements and is not influenced by the change of oil for other testers.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that the system oil supply pressure fluctuates greatly when the oil consumption of the engine fluctuates, and realizes the real-time pressure regulating function aiming at each engine. The pipeline between the oil depot and each engine test bed is provided with the corresponding pipeline pressure regulating oil tank, the pipeline pressure regulating oil tank senses the oil pressure of fuel oil on the pipeline, the sensed oil pressure is compared with the upper limit and the lower limit of the preset range of the pressure regulating oil tank, and then the oil pressure on the pipeline is regulated within the preset range through the air pressure regulating device, so that the stable oil supply of the engine is realized. The automatic real-time adjustment of the pipeline oil pressure is realized in an oil pressure feedback mode, and manual operation is not needed.
Preferably, the pipeline pressure regulating oil tank can perform bidirectional oil tank regulation according to the oil pressure at the outlet end of the oil reservoir and the oil pressure at the inlet end of the engine, so that the phenomenon of surging caused by the inconsistency of the pressures at all positions on the oil supply pipeline is prevented.
The pipeline pressure regulating oil tank can be used in cooperation with a pressure regulating oil tank in a test workshop (on a test bed) to regulate the pressure of the pipeline in two stages, so that the pressure of fuel oil delivery is more stable.
The utility model provides an oil supply control system for an aircraft engine test bed, which comprises: the oil depot is used for providing fuel oil; the engine is arranged on the engine test bed; connect the oil depot with pipeline pressure regulating oil tank on the pipeline between the engine test bed, wherein pipeline pressure regulating oil tank receives fuel on the pipeline and including setting up at the air pressure adjusting device at its top and setting up the oil pressure sensor at its exit end, air pressure adjusting device with the oil pressure sensor electricity is connected, oil pressure sensor sensing the oil pressure value of the fuel of pipeline pressure regulating oil tank output, air pressure adjusting device follows oil pressure sensor receives the sensing oil pressure value and according to the oil pressure value is adjusted the oil pressure of the fuel of pipeline pressure regulating oil tank output.
Further, the pipeline pressure regulating oil tank includes liquid level sensor and inlet valve, the liquid level sensor sensing the liquid level in the pipeline pressure regulating oil tank, the inlet valve adjusts according to the liquid level that the sensing was come the liquid level in the pipeline pressure regulating oil tank.
Further, the system comprises: the engine pressure regulating oil tank, it sets up on the engine test bench and be connected to the engine, engine pressure regulating oil tank is including setting up the air pressure adjusting device at its top and setting up the oil pressure sensor at its exit end, engine pressure regulating oil tank receives the second oil pressure value that the sensing was followed from its oil pressure sensor and according to the second oil pressure value is adjusted the oil pressure of the fuel of engine pressure regulating oil tank output.
Further, engine pressure regulating oil tank includes second level sensor and second inlet valve, the sensing of second level sensor the liquid level in the engine pressure regulating oil tank, the liquid level in the liquid level that the second inlet valve sensed according to the sensing adjusts in the engine pressure regulating oil tank.
Further, the system comprises: the engine oil pressure sensor is arranged on the engine test bed and connected to the engine, the engine oil pressure sensor senses an oil pressure value at the inlet end of the engine and sends the oil pressure value at the inlet end of the engine to the air pressure adjusting device of the pipeline pressure regulating oil tank to adjust the oil pressure of fuel output by the pipeline pressure regulating oil tank.
Furthermore, the engine oil pressure sensor is an oil pressure sensor of the engine pressure regulating oil tank.
Further, the system comprises: the oil depot oil pressure sensor is arranged at the outlet end of the oil depot, the oil depot oil pressure sensor senses the oil pressure value of the fuel output by the oil depot and sends the sensed oil pressure value to the air pressure adjusting device of the pipeline pressure regulating oil tank to adjust the oil pressure of the fuel output by the pipeline pressure regulating oil tank.
Further, the air pressure adjusting means includes an air inlet and an air outlet, and the air pressure adjusting means is deflated through the air outlet if the sensed oil pressure value is higher than an upper limit of a predetermined range, and is inflated through the air inlet if the sensed oil pressure value is lower than a lower limit of the predetermined range.
The utility model provides a pipeline pressure regulating oil tank in an oil supply control system of an aircraft engine test bed, which is connected to a pipeline between an oil depot and an engine test bed, and comprises: an air pressure adjusting device disposed at the top thereof; and the oil pressure sensor is arranged at the outlet end of the pipeline pressure regulating oil tank, wherein the air pressure regulating device is electrically connected with the oil pressure sensor, the oil pressure sensor senses the oil pressure value of the fuel output by the pipeline pressure regulating oil tank, and the air pressure regulating device receives the sensed oil pressure value from the oil pressure sensor and regulates the oil pressure of the fuel output by the pipeline pressure regulating oil tank according to the oil pressure value.
Further, pipeline pressure regulating oil tank includes: the liquid level sensor senses the liquid level in the pipeline pressure regulating oil tank, and the oil inlet valve adjusts the liquid level in the pipeline pressure regulating oil tank according to the sensed liquid level.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
fig. 1 is a structural diagram of an embodiment of an oil supply control system for an aircraft engine test bed provided by the utility model.
Fig. 2 is a structural diagram of a pressure regulating oil tank provided by the utility model.
Fig. 3 is a structural diagram of another embodiment of the oil supply control system for the test bed of the aircraft engine provided by the utility model.
Fig. 4 is a structural diagram of an aircraft engine test bed fuel supply control system according to still another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The pipeline between the oil depot and each engine test bed is provided with a corresponding pipeline pressure regulating oil tank, the pipeline pressure regulating oil tank senses the oil pressure of fuel oil on the pipeline, the sensed oil pressure is compared with the upper limit and the lower limit of a preset range of the pressure regulating oil tank, and the oil pressure on the pipeline is regulated within the preset range through an air pressure regulating device. Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a structural diagram of an embodiment of an oil supply control system for an aircraft engine test bed provided by the utility model.
As shown in fig. 1, the fuel supply control system for the test bed of the aircraft engine comprises a fuel tank 1, a plurality of engines 3, and a plurality of pressure regulating fuel tanks 2 respectively arranged on fuel delivery pipelines between the fuel tank and each engine 3.
On each fuel delivery line, a surge tank 2 is connected to an engine 3. Each engine 3 is arranged on a corresponding test bed in an engine test room, and each pressure regulating oil tank 2 is arranged on a pipeline between the oil depot 1 and the corresponding engine 3. The surge tank 2 may be located anywhere on the pipeline between the tank 2 and the test bed of each engine 3, also referred to herein as a pipeline surge tank.
In the fuel supply operation, the fuel tank 1 supplies fuel having a certain pressure (oil pressure) to the plurality of line pressure-regulating fuel tanks 2 through the respective lines by the pressure, and the fuel outputted from each of the line pressure-regulating fuel tanks 2 is supplied to the corresponding engine 3 on the engine test bed through the supply line.
One or more valves (not shown) may be provided between the reservoir 1 and the surge tank 2, and between the surge tank 2 and the engine 3, for controlling the supply of fuel.
Fig. 2 shows the structure of the pressure regulating oil tank provided by the utility model.
As shown in fig. 2, the pressure-regulating oil tank 2 may include an oil inlet valve 7, an oil outlet valve 8, an air pressure regulating device 5 provided at the top thereof, and an oil pressure sensor 4 provided at the outlet end thereof.
The pressure regulating oil tank 2 is used for fuel oil pressure regulation and emergency fuel oil storage. As shown in FIG. 2, the fuel to be pressure-regulated, which enters the pressure-regulating fuel tank 2 through the fuel inlet valve 7, is arranged at the bottom of the pressure-regulating fuel tank 2, and the compressed air, which enters the pressure-regulating fuel tank 2 through the air pressure regulating device 5, is arranged at the top of the pressure-regulating fuel tank 2. The fuel oil regulated by the compressed air enters a system pipeline from an oil outlet valve 8 at the bottom of the pressure regulating oil tank 2.
The air pressure adjusting device 5 is electrically connected to the line oil pressure sensor 4. The line oil pressure sensor 4 senses the oil pressure value of the fuel output from the pressure regulating tank 2. The air pressure adjusting device 5 receives the sensed oil pressure value from the line oil pressure sensor 4 and inflates or deflates the pressure-adjusting oil tank 2 according to the oil pressure value.
Specifically, the air pressure adjusting device 5 may be mounted on the top of the surge tank 2, has pressure comparing and pressure adjusting functions, compares the oil pressure sensed by the oil pressure sensor 4 with a set oil pressure range, and adjusts the oil pressure of the surge tank according to the result of the comparison. The air pressure regulating device 5 may comprise an air inlet and an air outlet for inflating and deflating, respectively, the pressure regulating tank.
For example, when the oil pressure sensed by the oil pressure sensor 4 is higher than the upper limit of the predetermined oil pressure range, the air pressure adjusting device 5 may perform comparison and then deflate the pressure regulating oil tank through the air outlet, so as to decrease the air pressure in the tank, and further decrease the oil pressure output by the pressure regulating oil tank, and the air pressure adjusting device stops deflating when the oil pressure reaches a first oil pressure set value (e.g., a certain value within the predetermined oil pressure range). When the oil pressure sensed by the oil pressure sensor 4 is lower than the lower limit of the predetermined oil pressure range, the air pressure adjusting device 5 may perform comparison and inflate the pressure regulating oil tank through the air inlet, so as to raise the air pressure in the tank, further raise the oil pressure output by the pressure regulating oil tank, and stop inflating when the oil pressure reaches a second oil pressure set value (e.g., a certain value within the predetermined oil pressure range). Thereby ensuring that the value of the oil pressure output is maintained within the set oil pressure range. The first oil pressure setting and the second oil pressure setting may be the same or different.
The predetermined oil pressure range may be set in accordance with a requirement of the oil pressure of the engine connected to the surge tank. For example, if the engine operation requires an oil pressure value of x pa, the predetermined oil pressure range of the line regulated tank may be [ x- σ, x + σ ], where σ is an allowable fluctuation value of the oil pressure.
According to the utility model, different preset oil pressure ranges are set for the pipeline pressure regulating oil tank corresponding to each engine for pressure regulation, so that fuel oil with different oil pressures can be provided for each engine from the same oil depot, and thus, the oil pressure requirements of different engines are met.
As shown in fig. 2, the pressure-regulating fuel tank 2 may further include a liquid level sensor 6 and an inlet valve 7.
The liquid level sensor 6 can be arranged at the top of the tank body of the pressure regulating oil tank 2 for sensing the liquid level inside the oil tank and has an in-tank low liquid level alarm function. When the oil supply failure of the oil depot causes that the liquid level in the tank is lower than the alarm liquid level, the engine under test still can work for a period of time so as to achieve the emergency disposal of the engine under test.
The liquid level sensor 6 can cooperate with an oil inlet valve 7 of the pressure-regulating oil tank, and the oil inlet valve 7 can be opened or closed according to a liquid level value sensed by the liquid level sensor 6. For example, when the liquid level in the pressure-regulating fuel tank 2 is lower than the lower limit of the predetermined liquid level range, the fuel feed valve 7 of the pressure-regulating fuel tank 2 is opened, the liquid level in the tank is raised, and when the liquid level reaches a first liquid level set value (e.g., a certain value in the predetermined liquid level range), the fuel feed valve 7 may be closed. When the liquid level in the pressure-regulating oil tank 2 is higher than the upper limit of the predetermined liquid level range, the oil inlet valve 7 is closed, the liquid level in the tank is lowered, and when the liquid level reaches a second liquid level set value (for example, a certain value in the predetermined liquid level range), the oil inlet valve 7 may be opened. Thereby ensuring that the liquid level in the tank remains within the set liquid level range. The first level set point and the second level set point may be the same or different.
Note that although the pressure regulated tank 2 is shown in fig. 2 as including a level sensor 6 and an inlet valve 7, in some embodiments, the pressure regulated tank may not include a level sensor and/or an inlet valve.
Fig. 3 is a structural diagram of another embodiment of the oil supply control system for the test bed of the aircraft engine provided by the utility model. In this embodiment, an oil pressure sensor may be provided at the inlet end of the engine and/or at the outlet end of the reservoir. The line pressure regulating oil tank can regulate the oil pressure according to the oil pressure value sensed by the engine oil pressure sensor and/or the oil reservoir oil pressure sensor, thereby performing bidirectional oil pressure regulation.
As shown in fig. 3, an engine oil pressure sensor 9 may be provided at an inlet end of each engine 3 (e.g., in a test plant/on a test bed). An oil reservoir oil pressure sensor 10 may also be provided at the outlet end of the oil reservoir 1. The structure and function of the engine oil pressure sensor 9 and the reservoir oil pressure sensor 10 may be the same as those of the oil pressure sensor 4 of the line pressure regulating oil tank 2 shown in fig. 2.
Specifically, the oil pressure sensor 10 (which may be referred to herein as a reservoir oil pressure sensor) at the outlet end of the reservoir 1 may sense an oil pressure value of the fuel at the outlet end of the reservoir, and transmit the sensed oil pressure value (which may be referred to herein as a reservoir oil pressure value or a reservoir output oil pressure value) to the air pressure regulating device 5 (not shown) of the line pressure regulating tank 2. An oil pressure sensor 9 (which may be referred to herein as an engine oil pressure sensor) at an inlet end of the engine 3 may sense an oil pressure value of fuel at the inlet end of the engine and send the sensed oil pressure value (which may be referred to herein as an engine oil pressure value or an engine input oil pressure value) to the air pressure regulating device 5 of the regulated fuel tank 2.
The air pressure adjusting device 5 can adjust the pressure-adjusting oil tank, i.e., inflate or deflate, according to the reservoir oil pressure value and the engine oil pressure value.
For example, if the reservoir output oil pressure is greater than the engine input oil pressure by a predetermined threshold, the pressure regulating reservoir may be vented to reduce the oil pressure on the line through the pressure regulating reservoir to match the engine input oil pressure. If the output oil pressure of the oil depot is lower than the input oil pressure of the engine, the pressure regulating oil tank needs to be inflated, and the oil pressure on a pipeline is increased through the pressure regulating oil tank so as to be matched with the input oil pressure of the engine.
On the other hand, if the regulated tank oil pressure is greater than the engine input oil pressure by a predetermined threshold, it is necessary to deflate the regulated tank to reduce the oil pressure output from the regulated tank to match the engine oil pressure. If the oil pressure of the pressure regulating oil tank is lower than the input oil pressure of the engine, the pressure regulating oil tank needs to be inflated, and the oil pressure output by the pressure regulating oil tank is improved to be matched with the input oil pressure of the engine.
Those skilled in the art will also recognize other ways to adjust the oil pressure in the line regulated reservoir based on the reservoir output oil pressure and the engine input reservoir such that the oil pressure in the supply line remains evenly distributed and matches the engine input oil pressure.
The pressure regulating oil tank of the embodiment carries out bidirectional pressure regulation on the oil depot and the engine, and eliminates the phenomenon of surging caused by oil pressure difference between the oil depot and the engine in a pipeline.
Note that while the system is shown in FIG. 3 as including both a sump oil pressure sensor and an engine oil pressure sensor, in some embodiments, only a sump oil pressure sensor or only an engine oil pressure sensor may be provided in the system.
Fig. 4 is a structural diagram of an aircraft engine test bed fuel supply control system according to still another embodiment of the present invention.
In practical application, some engine test beds are provided with pressure regulating oil tanks at the input ends of the engines, and some engine test beds are not provided with pressure regulating oil tanks. Set up pipeline pressure regulating oil tank on the pipeline between oil depot and engine test bed, can carry out the second grade pressure regulating to the input oil pressure of engine for the pressure that the fuel was carried is more stable.
As shown in fig. 4, in an engine test plant, a surge tank 11 (which may be referred to herein as an engine surge tank) may be provided at the inlet end of one or more engines. The engine regulator tank 11 may have the same structure and function as the line regulator tank 2 illustrated in fig. 2, including the oil pressure sensor 4 and the air regulating valve 5. In some aspects, the engine surge tank 11 may further include a liquid level sensor 6 and an inlet valve 7.
The engine pressure regulating oil tank 11 can regulate the oil pressure of the fuel at the inlet end of the engine to be within a preset oil pressure range of the engine.
For example, when the oil pressure sensed by the oil pressure sensor of the engine pressure regulating oil tank 11 is higher than the oil pressure upper limit of the engine, the air pressure regulating device of the engine pressure regulating oil tank 11 may perform comparison and then deflate the pressure regulating oil tank 11, so that the air pressure in the tank decreases, the oil pressure output by the pressure regulating oil tank 11 decreases, and the air pressure regulating device stops deflating when the oil pressure reaches the set value. When the oil pressure sensed by the oil pressure sensor 11 is lower than the oil pressure lower limit of the engine, the air pressure regulating device of the engine pressure regulating oil tank 11 may perform comparison and then inflate the pressure regulating oil tank 11, so that the air pressure in the tank rises, the oil pressure output by the pressure regulating oil tank rises, and the air pressure regulating device stops inflating when the oil pressure reaches a set value. Thereby ensuring that the oil pressure at the inlet end of the engine remains within the set oil pressure range.
In some embodiments, an oil pressure sensor in the engine surge tank 11 may communicate the engine input oil pressure to the line surge tank for the line surge tank to regulate its oil pressure based on the engine input oil pressure. In other words, in the case where the engine surge tank 11 is provided in the engine test room, the engine oil pressure sensor in fig. 3 may be an oil pressure sensor in the engine surge tank 11.
Only one engine surge tank 11 is shown in fig. 4 for each engine 3, but in some embodiments two or more engine surge tanks may be provided for each engine 3, with multiple stages of engine inlet surge to allow the oil pressure of the fuel to meet the engine demand.
The aircraft engine test bed oil supply control system shown in fig. 4 can be provided with pressure regulating oil tanks at both the pipeline section of one oil supply pipeline and the test room/test bed, and two-stage pressure regulation is executed, so that the pressure for fuel oil delivery is more stable.
According to the utility model, the pipeline pressure regulating oil tank is arranged between the oil depot and the engine test bed, and oil pressure feedback is realized in the pipeline pressure regulating oil tank through the oil pressure sensor and the air pressure regulating device, so that the oil pressure of the pipeline is regulated within a preset range. The pipeline pressure regulating oil tank can be arranged at any suitable position between the test bed and the oil depot and is not limited by the height and the distance from the engine. The pipeline pressure regulating oil tank can regulate oil pressure according to the oil pressure range of the corresponding engine, and the requirements of different engine debugging requirements on different oil supply pressures are met.
Furthermore, the pipeline pressure regulating oil tank can cooperate with the engine oil pressure sensor and/or the oil reservoir oil pressure sensor to regulate oil pressure, so that bidirectional oil pressure regulation is realized, and the phenomenon of surge in the pipeline is avoided. The pipeline pressure regulating oil tank can further execute two-stage pressure regulation with the engine pressure regulating oil tank, so that the pressure of fuel oil delivery is more stable.
The above examples are only intended to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the embodiments of the utility model or equivalent substitutions of parts of the technical features may be made without departing from the spirit of the technical solutions of the utility model, which should be covered by the technical solutions of the utility model.
Claims (10)
1. An aircraft engine test bed fuel feeding control system, includes:
the oil depot is used for providing fuel oil;
the engine is arranged on the engine test bed;
a pipeline pressure regulating oil tank connected on the pipeline between the oil depot and the engine test bed,
wherein pipeline pressure regulating oil tank is received fuel on the pipeline and including setting up at the air pressure adjusting device at its top and setting up the oil pressure sensor at its exit end, air pressure adjusting device with the oil pressure sensor electricity is connected, the oil pressure sensor sensing the oil pressure value of the fuel of pipeline pressure regulating oil tank output, air pressure adjusting device follows oil pressure sensor receives the sensing oil pressure value and according to the oil pressure value is adjusted the oil pressure of the fuel of pipeline pressure regulating oil tank output.
2. The aircraft engine test bed fuel supply control system of claim 1, wherein the pipeline pressure regulating tank includes a liquid level sensor that senses a liquid level within the pipeline pressure regulating tank and an inlet valve that adjusts the liquid level within the pipeline pressure regulating tank based on the sensed liquid level.
3. The aircraft engine test bed fueling control system of claim 1, further comprising:
the engine pressure regulating oil tank, it sets up on the engine test bench and be connected to the engine, engine pressure regulating oil tank is including setting up the air pressure adjusting device at its top and setting up the oil pressure sensor at its exit end, engine pressure regulating oil tank receives the second oil pressure value that the sensing was followed from its oil pressure sensor and according to the second oil pressure value is adjusted the oil pressure of the fuel of engine pressure regulating oil tank output.
4. An aircraft engine test bed fueling control system according to claim 3, wherein the engine pressure regulating tank includes a second level sensor that senses a liquid level within the engine pressure regulating tank and a second fuel inlet valve that adjusts the liquid level within the engine pressure regulating tank based upon the sensed liquid level.
5. An aircraft engine test stand fueling control system according to claim 1 or 3, further comprising:
the engine oil pressure sensor is arranged on the engine test bed and connected to the engine, the engine oil pressure sensor senses an oil pressure value at the inlet end of the engine and sends the oil pressure value at the inlet end of the engine to the air pressure adjusting device of the pipeline pressure regulating oil tank to adjust the oil pressure of fuel output by the pipeline pressure regulating oil tank.
6. An aircraft engine test bed fueling control system according to claim 5, wherein the engine oil pressure sensor is an oil pressure sensor of the engine surge tank.
7. The aircraft engine test bed fueling control system of claim 1, further comprising:
the oil depot oil pressure sensor is arranged at the outlet end of the oil depot, the oil depot oil pressure sensor senses the oil pressure value of the fuel output by the oil depot and sends the sensed oil pressure value to the air pressure adjusting device of the pipeline pressure regulating oil tank to adjust the oil pressure of the fuel output by the pipeline pressure regulating oil tank.
8. An aircraft engine test bed fueling control system according to claim 1, wherein the air pressure regulating device includes an air inlet and an air outlet, and wherein the air pressure regulating device is deflated through the air outlet if the sensed oil pressure value is above an upper limit of the predetermined range and is inflated through the air inlet if the sensed oil pressure value is below a lower limit of the predetermined range.
9. The utility model provides a pipeline pressure regulating oil tank among aircraft engine test bed fuel feeding control system, pipeline pressure regulating oil tank connects on the pipeline between oil depot and engine test bed, includes:
an air pressure adjusting device disposed at the top thereof; and
an oil pressure sensor disposed at an outlet end thereof,
wherein air pressure adjusting device with the oil pressure sensor electricity is connected, oil pressure sensor sensing the oil pressure value of the fuel of pipeline pressure regulating oil tank output, air pressure adjusting device follows oil pressure sensor receives the oil pressure value of sensing and according to the oil pressure value is adjusted the oil pressure of the fuel of pipeline pressure regulating oil tank output.
10. The in-line pressure regulated fuel tank of claim 9 further comprising: the liquid level sensor senses the liquid level in the pipeline pressure regulating oil tank, and the oil inlet valve adjusts the liquid level in the pipeline pressure regulating oil tank according to the sensed liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120232134.1U CN215633358U (en) | 2021-01-26 | 2021-01-26 | Oil supply control system of test bed of aircraft engine and pipeline pressure regulating oil tank thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120232134.1U CN215633358U (en) | 2021-01-26 | 2021-01-26 | Oil supply control system of test bed of aircraft engine and pipeline pressure regulating oil tank thereof |
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| CN215633358U true CN215633358U (en) | 2022-01-25 |
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| CN202120232134.1U Active CN215633358U (en) | 2021-01-26 | 2021-01-26 | Oil supply control system of test bed of aircraft engine and pipeline pressure regulating oil tank thereof |
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2021
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