Oxygen supplementation system for oxygen supplementation of engine

Abstract

The invention belongs to an aircraft engine oxygenating technology, and relates to an oxygenating system for oxygenating an engine, comprising: an oxygen bottle for storing oxygen; the oxygen bottle switch is a three-way valve; one end of the inflation mouthpiece is connected with an external air source, and the other end is connected with the left end of the oxygen bottle switch; the oxygen switch is connected between the right end of the oxygen bottle switch and the input end of the oxygen decompression device; the oxygen pressure reducing device is used for reducing pressure, and the output end of the oxygen pressure reducing device is connected to the engine through a pipeline.

Description

Technical Field

[0001] This invention pertains to aircraft engine oxygen replenishment technology, specifically an oxygen replenishment system for engine oxygen replenishment. Background Technology

[0002] An aircraft oxygen replenishment system typically consists of an oxygen cylinder assembly, an oxygen filling connector, an oxygen switch, an vent valve, an oxygen switch, an electromagnetic valve, an oxygen pressure regulator, a temperature and pressure sensor, a pressure sensor, and a metal hose.

[0003] Existing oxygen supplementation systems involve a large number of devices, requiring more space for onboard piping; the weight and quantity of piping are also significant. This presents a considerable challenge to the overall installation space and weight of the oxygen supplementation system on the aircraft. Summary of the Invention

[0004] Purpose of the invention: To provide an oxygen supplementation system for engine oxygen replenishment, which replenishes oxygen for engine starting when the engine is stopped.

[0005] Technical solution: An oxygen supplementation system for engine oxygen supplementation, comprising: Oxygen cylinders are used to store oxygen; The oxygen cylinder switch is a three-way shut-off valve, with its lower end inserted into the oxygen cylinder. The inflation nozzle connects to an external air source at one end and to the left end of the oxygen cylinder switch at the other end. The oxygen switch is connected between the right end of the oxygen cylinder switch and the input end of the oxygen pressure reducing device. An oxygen pressure reducing device is used to reduce pressure; the output of the oxygen pressure reducing device is connected to the engine via a pipeline.

[0006] Furthermore, the oxygen switch is a three-way shut-off valve.

[0007] Furthermore, an oxygen pressure gauge, connected to the left end of the oxygen switch, is used to monitor the pressure.

[0008] Furthermore, the oxygen supplementation system also includes a vent valve, which is connected between the oxygen switch and the input terminal of the oxygen pressure reducing device.

[0009] Furthermore, the oxygen pressure reducing device is equipped with an electromagnetic valve at its output end.

[0010] Furthermore, the oxygen pressure reducing device is also equipped with a safety valve, through which excess oxygen is discharged via the safety valve venting pipe.

[0011] Furthermore, the pipeline is a flexible metal hose, with one end connected to an electromagnetic valve and the other end connected to the engine.

[0012] Furthermore, after the aircraft is powered on, it completes a static self-test of oxygen pressure according to the self-test instructions from the aircraft and reports the self-test results to the aircraft. The oxygen supply system receives the oxygen supply command from the engine, activates the solenoid valve, and delivers oxygen to the engine's main combustion chamber. When filling with oxygen, open the protective cap on the filling nozzle, securely connect the oxygen filling equipment, and turn on the switch on the oxygen filling equipment. High-pressure oxygen enters the pipeline in the system through the filling nozzle and enters the oxygen cylinder. The oxygen is output from the oxygen cylinder and enters the oxygen switch in the downstream pipeline. It then enters the oxygen pressure gauge through the passage inside the switch. The oxygen pressure gauge indicates the current gas source pressure. After filling with oxygen, remove the oxygen filling equipment. During ground preparation, the operator rotates the handwheel assembly on the oxygen switch to open the oxygen switch, and the gas source enters the oxygen pressure reducing device through the opened oxygen switch. The pressure reducing mechanism in the oxygen pressure reducing device can reduce the high-pressure oxygen to low pressure and output it in two ways. The oxygen pressure reducing device has an electromagnetic valve mechanism. When there is no instruction from the machine, the electromagnetic valve mechanism does not open. When the pressure reducing mechanism exceeds the tolerance, the safety valve mechanism in the oxygen pressure reducing device opens, and the overpressured oxygen is discharged through the safety valve mechanism. When the pressure reducing reaches the safe value, the safety valve closes. When the electromagnetic valve in the oxygen depressurization device receives an electrical signal from the onboard propulsion control terminal, it opens, and oxygen enters the engine through a metal hose; when the electrical signal disappears, the electromagnetic valve closes, and the oxygen at the rear is discharged into the atmosphere through the safety valve connector. When it is necessary to release oxygen from the system, first connect the venting device to the venting valve, open the venting valve, and then slowly open the oxygen switch to release oxygen from the system. When the venting device is removed, the venting valve closes to ensure the airtightness of the system.

[0013] Beneficial effects: This invention provides an oxygen supplementation system for engines, integrating an oxygen pressure sensor, an oxygen regulator, and an electromagnetic valve into a single design, reducing onboard piping and overall weight. Furthermore, a pressure sensor is added at the rear end of the electromagnetic valve to monitor the pressure thereafter. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an oxygen supplementation system used for engine oxygen replenishment. Figure 2 This is a functional schematic diagram of an oxygen supplementation system used for engine oxygen replenishment. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0016] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] During ground preparation, the pressure displayed on the pressure gauge or onboard monitoring terminal determines whether oxygen needs to be added to the oxygen supply subsystem. During oxygen supply, oxygen is added to the oxygen cylinder through the filling nozzle. The oxygen switch controls the connection and disconnection of the system's oxygen supply. The oxygen pressure reducing device reduces the high-pressure oxygen to the pressure required for downstream oxygen supply and monitors the reduced oxygen pressure. Temperature and pressure sensors on the oxygen cylinder monitor the pressure and temperature of the oxygen source. The reduced pressure is then controlled by the propulsion control terminal, which opens a solenoid valve when needed, allowing oxygen to enter the engine through a metal hose to supplement engine ignition. The vent valve operates when the system needs to release gas or replace oxygen, expelling gas from the oxygen supply subsystem.

[0020] After the aircraft is powered on, it completes a static self-test of oxygen pressure according to the self-test instructions from the aircraft and reports the self-test results to the aircraft.

[0021] The in-flight oxygen supply subsystem receives the oxygen supply command from the EIU engine, activates the electromagnetic valve, and delivers oxygen to the engine's main combustion chamber.

[0022] When filling with oxygen, open the protective cap on the filling nozzle, securely connect the oxygen filling equipment, and turn on the switch on the oxygen filling equipment. High-pressure oxygen enters the pipeline in the system through the filling nozzle and enters the oxygen cylinder assembly. Oxygen is output from the oxygen cylinder assembly and enters the oxygen switch in the downstream pipeline. It then enters the oxygen pressure gauge through the internal passage of the switch. The oxygen pressure gauge indicates the current gas source pressure. After filling with oxygen, remove the oxygen filling equipment.

[0023] During ground preparation, the operator rotates the handwheel assembly on the oxygen switch to open it, allowing the gas supply to enter the oxygen pressure reducing device through the open switch. The pressure reducing mechanism within the device reduces high-pressure oxygen to low pressure and outputs it in two paths. The device includes an electromagnetic valve mechanism; when there is no instruction from the machine, the electromagnetic valve mechanism does not open, preventing the gas from flowing downstream. When the pressure reduction exceeds the allowable limit, the safety valve mechanism in the device opens, allowing the overpressured oxygen to escape. Once the pressure reaches the safe value, the safety valve closes. The device also contains three pressure sensor assemblies: one at the front of the electromagnetic valves and the other two at the rear of the two electromagnetic valves, monitoring the pressure downstream of the pressure reducing mechanism and the pressure downstream of the electromagnetic valve mechanisms, respectively.

[0024] When the electromagnetic valve in the oxygen depressurization device receives an electrical signal from the onboard propulsion control terminal, it opens, allowing oxygen to flow through the product cavity to the outlet and then into the engine via a metal hose. When the electrical signal disappears, the valve closes, and the remaining oxygen is discharged into the atmosphere through a safety valve connector.

[0025] When it is necessary to release oxygen from the system, first connect the venting device to the venting valve, open the venting valve, and then slowly open the oxygen switch to release oxygen from the system. When the venting device is removed, the venting valve closes to ensure the airtightness of the system.

[0026] The above description is merely a specific embodiment of the present invention, providing a detailed description of the invention. Parts not covered herein are conventional techniques. However, the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An oxygen supplementation system for engine oxygen supplementation, characterized in that: The oxygen supplementation system includes: Oxygen cylinders are used to store oxygen; The oxygen cylinder switch is a three-way shut-off valve, with its lower end inserted into the oxygen cylinder. The inflation nozzle connects to an external air source at one end and to the left end of the oxygen cylinder switch at the other end. The oxygen switch is connected between the right end of the oxygen cylinder switch and the input end of the oxygen pressure reducing device. An oxygen pressure reducing device is used to reduce pressure; the output of the oxygen pressure reducing device is connected to the engine via a pipeline.

2. The oxygen supplementation system according to claim 1, characterized in that: The oxygen switch is a three-way shut-off valve.

3. The oxygen supplementation system according to claim 2, characterized in that: An oxygen pressure gauge, connected to the left end of the oxygen switch, is used to monitor pressure.

4. The oxygen supplementation system according to claim 3, characterized in that: The oxygen supplementation system also includes a vent valve, which is connected between the oxygen switch and the input terminal of the oxygen pressure reducing device.

5. The oxygen supplementation system according to claim 4, characterized in that: The oxygen pressure reducing device is equipped with an electromagnetic valve at the output end.

6. The oxygen supplementation system according to claim 5, characterized in that: The oxygen pressure reducing device is also equipped with a safety valve, through which excess oxygen is released via the venting pipe.

7. The oxygen supplementation system according to claim 6, characterized in that: The pipeline is a flexible metal hose, with one end connected to an electromagnetic valve and the other end connected to the engine.

8. The oxygen supplementation system according to claim 7, characterized in that: After the aircraft is powered on, it completes the static self-test of oxygen pressure according to the self-test instructions from the aircraft and reports the self-test results to the aircraft. The oxygen supply system receives the oxygen supply command from the engine, activates the solenoid valve, and delivers oxygen to the engine's main combustion chamber. When filling with oxygen, open the protective cap on the filling nozzle, securely connect the oxygen filling equipment, and turn on the switch on the oxygen filling equipment. High-pressure oxygen enters the pipeline in the system through the filling nozzle and enters the oxygen cylinder. The oxygen is output from the oxygen cylinder and enters the oxygen switch in the downstream pipeline. It then enters the oxygen pressure gauge through the passage inside the switch. The oxygen pressure gauge indicates the current gas source pressure. After filling with oxygen, remove the oxygen filling equipment. During ground preparation, the operator rotates the handwheel assembly on the oxygen switch to open the oxygen switch, and the gas source enters the oxygen pressure reducing device through the opened oxygen switch. The pressure reducing mechanism in the oxygen pressure reducing device can reduce the high-pressure oxygen to low pressure and output it in two ways. The oxygen pressure reducing device has an electromagnetic valve mechanism. When there is no instruction from the machine, the electromagnetic valve mechanism does not open. When the pressure reducing mechanism exceeds the tolerance, the safety valve mechanism in the oxygen pressure reducing device opens, and the overpressured oxygen is discharged through the safety valve mechanism. When the pressure reducing reaches the safe value, the safety valve closes. When the electromagnetic valve in the oxygen depressurization device receives an electrical signal from the onboard propulsion control terminal, it opens, and oxygen enters the engine through a metal hose. When the electrical signal disappears, the electromagnetic valve closes, and the oxygen at the rear end is discharged into the atmosphere through the safety valve connector; When it is necessary to release oxygen from the system, first connect the venting device to the venting valve, open the venting valve, and then slowly open the oxygen switch to release oxygen from the system. When the venting device is removed, the venting valve closes to ensure the airtightness of the system.

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