System for deicing a surface of an aircraft

Abstract

A de-icing system (101) capable of de-icing a surface (103) of an aircraft (105), the system comprising a fluid circuit (119) comprising at least:-a pressurized tank (113),-at least one pneumatic de-icing device (109),-at least one first switching device (115),-at least one second switching device (117), and-a pressurized fluid distribution device (111), the pressurized fluid dispensing device is configured to: deliver pressurized fluid to the pneumatic deicing device (109) via the pressurized tank (113) and the switching device (115); and / or removing pressurized fluid from the pneumatic deicing device (109) via the first switching device (115) and the second switching device (117).

Description

Technical Field

[0001] This invention relates to the field of managing the condition of aircraft surfaces. In particular, it relates to a de-icing system for aircraft surfaces and a method of using such a de-icing system. Background Technology

[0002] Existing technologies include documents WO-A1-2015110974, GB-A-2355243, US-A1-3720388, and CA-A1-3073456.

[0003] To remove ice that may be present on the surface of an aircraft, the usual practice is to use de-icing equipment. The function of de-icing equipment is based on the use of pressurized fluids, such as air under pressure, also known as pressurized air.

[0004] This type of de-icing equipment must be supplied with air at a certain pressure in order to de-ice the surface of the aircraft equipped with the de-icing equipment, usually through mechanical action.

[0005] In the prior art, pressurized air used to supply de-icing equipment is drawn from the aircraft's engine (e.g., from an airflow circulating in a turbine). This is known as engine air venting.

[0006] However, this method has many drawbacks. In practice, engine air venting affects the aircraft's engine speed, thus impacting its performance. Furthermore, the sampled pressurized air has higher pressure and temperature values ​​than the air strictly required for de-icing equipment operation. Additionally, the energy consumption associated with powering the de-icing equipment is higher than necessary, which may require customization specifically tailored to the needs of the de-icing system.

[0007] Finally, when de-icing is not required, this de-icing equipment must be kept in a vacuum, which means that air is constantly being consumed and energy is being lost. Summary of the Invention

[0008] This invention proposes solutions to these shortcomings.

[0009] The object of this invention is to provide a de-icing system that does not require engine air venting and exhibits optimized efficiency.

[0010] Therefore, according to a first aspect, the object of the present invention is to provide a de-icing system capable of de-icing the surface of an aircraft, the de-icing system comprising a fluid circuit, the fluid circuit comprising at least: -Pressure tank; - At least one pneumatic de-icing device; - at least one first switching device; and - At least one second switching device.

[0011] More specifically, the fluid circuit includes at least one pressurized fluid distribution device, which is configured to: -Pressed fluid is supplied to the pneumatic de-icing equipment via a pressurization tank and a first switching device, and / or -The pressurized fluid is removed from the pneumatic de-icing equipment via a first switching device and a second switching device.

[0012] Furthermore, the pressurized fluid distribution device can be configured to evacuate the pneumatic de-icing device via a first switching device and a second switching device.

[0013] The de-icing system according to the present invention may include a control unit configured to control the pressurization of the pressurized tank, the inflation, deflation and / or vacuuming of the pneumatic de-icing device.

[0014] The de-icing system according to the invention may have one or more of the following features, either individually or in combination, thereby the de-icing system may include: -Compressors, especially electric compressors, which serve as pressurized fluid distribution devices; - At least one sensor capable of measuring the pressure of the pressurized fluid at the pneumatic de-icing device; - Check valves, especially heating check valves, are arranged in the fluid circuit at the outlet of pressurized fluid distribution equipment; - At least one drainage device, particularly a drain valve; - Pressure limiter, the pressure limiter is arranged in the fluid circuit at the outlet of the pressurized tank; and / or - The second switching device includes a port configured to allow external fluid to be injected into the fluid circuit, particularly pressurized air from the aircraft cabin.

[0015] According to a second aspect, the present invention also relates to a method using at least one system for de-icing the surface of an aircraft, particularly the de-icing system according to the first aspect, the method comprising at least: - Filling step, during which the pressurized tank is filled with pressurized fluid; - An inflation step, during which at least one pneumatic de-icing device is inflated by pressurized fluid contained in a pressurized tank; and - Degassing step, during which the pneumatic de-icing device is degassed.

[0016] Furthermore, the method of use according to the present invention may include at least: - Vacuum step, during which the pneumatic de-icing equipment is subjected to a vacuum; and / or - Filling step: During the filling step, the pressurized tank is filled with pressurized fluid from the pneumatic de-icing equipment.

[0017] Furthermore, according to the method of use according to the present invention, the inflation step and the deflation step can be repeated sequentially.

[0018] Finally, depending on various additional features, the method of use according to the invention may include one or more of the following features, either individually or in combination with each other, wherein: - The filling step may include at least one of the following sub-steps, which include: Pressure measurement step: During the pressure measurement step, the pressure sensor measures the pressure in the pressurized tank; The procedure for starting the distribution equipment involves the pressurized fluid distribution equipment being put into operation to supply pressurized fluid to the pressurized tank. The "fill" mode configuration step, during which: The first switching device is connected to the output of the second switching device; The first switching device is specifically connected to the inlet closure of the pressurized tank via a pressure limiter; and, The second switching device is connected to the output of the pressurized tank and opened; - The filling step may include at least one of the following sub-steps, which include: The "inflatable" configuration step, during which: The second switching device is off; The connection between the first switching device and the output of the second switching device is closed; and The first switching device is connected to the output of the pneumatic de-icing equipment and is turned on.

[0019] - The filling step may include at least one of the following sub-steps, which include: The distribution equipment startup procedure involves the pressurized fluid distribution equipment being put into operation to vent and / or evacuate the pneumatic de-icing equipment. The "venting" mode configuration step, during which: The first switching device is specifically connected to the inlet closure of the pressurized tank via a pressure limiter; and, The first switching device is connected to the output of the second switching device. Attached Figure Description

[0020] The invention will be better understood from the following detailed description, and other features and advantages will become apparent. The following detailed description includes embodiments given by way of non-limiting example only with reference to the accompanying drawings, which can be used to complete the understanding of the invention and the description of embodiments thereof, and, where appropriate, to help define the invention. In the drawings: - Figure 1 This is a schematic diagram of the de-icing system according to the present invention; and, - Figure 2 This is an embodiment diagram of a method using the de-icing system according to the present invention. Detailed Implementation

[0021] Figure 1 This is a schematic diagram of an embodiment of a de-icing system 101 according to the present invention. This de-icing system 101 is configured to ensure the de-icing of the surface 103 of the aircraft 105.

[0022] Reference Figure 1 In the non-limiting example described, the aircraft 105 is equipped with multiple de-icing systems 101. For clarity, Figure 1 Only one de-icing system 101 is shown in the diagram.

[0023] As shown, the de-icing system 101 is assigned to de-ic the surface 103 (particularly the wing of the aircraft 105).

[0024] Typically, the present invention enables the removal of ice from one or more areas of the surface 103 of an aircraft 105 by means of one or more de-icing systems 101.

[0025] Furthermore, according to the present invention, the various de-icing systems 101 can be connected to each other independently and / or via at least one fluid connection (possibly via at least one valve).

[0026] According to the present invention, the de-icing system 101 includes at least one pneumatic de-icing device 109. Figure 1 In the example shown, the de-icing system 101 includes four pneumatic de-icing devices 109.

[0027] As a non-limiting example, this type of pneumatic de-icing device can be a device specifically referred to as a "pneumo-expulse" as described in European patent application EP-A1-3097017.

[0028] More generally, the pneumatic de-icing device 109 according to the invention can be inflated, deflated, and / or evacuated, depending on whether the pneumatic de-icing device is supplied with pressurized fluid.

[0029] The inflation of the pneumatic de-icing device 109 causes de-icing to be performed on the surface 103 of the aircraft 105 located by the pneumatic de-icing device 109.

[0030] In addition, the de-icing system 101 also includes a pressurized fluid distribution device 111, such as a compressor 111, which is configured to... - Supply pressurized fluid to the pneumatic de-icing device 109 to ensure the pneumatic de-icing device 109 is inflated, and / or - Extract pressurized fluid from the pneumatic de-icing device 109 to ensure that the pneumatic de-icing device 109 is vented.

[0031] According to the present invention, the pneumatic de-icing device 109 is subjected to a vacuum by the action of the pressurized fluid distribution device 111, and the venting of the pneumatic de-icing device 109 can be completed.

[0032] In a particular embodiment, the pressurized fluid distribution device 111 is an electric compressor.

[0033] In the non-limiting example shown, in addition to the elements already described, the de-icing system 101 specifically includes: -Pressure tank 113, -At least one first switching device 115, particularly a first valve 115, especially a first "three-way" valve 115, and - At least one second switching device 117, in particular a second valve 117, especially a second "three-way" valve 117.

[0034] The pressurizing tank 113 is supplied with pressurizing fluid, particularly pressurized air, via the pressurizing fluid distribution device 111. The pressurizing tank 113 is suitable for: -Store pressurized fluid - Pressurized fluid is released to the pneumatic de-icing device 109 via at least one fluid connection.

[0035] In all configurations implemented by the first switching device 115 (and correspondingly the second switching device 117), the first switching device 115 (and correspondingly the second switching device 117) enables pressurized fluid to flow from at least one first port of the switching device to at least one second port of the switching device.

[0036] The components of the de-icing system 101 (i.e., in particular the pressurized fluid distribution device 111, the pressurized tank 113, the first switching device 115, the second switching device 117, and the pneumatic de-icing device 109) are integrated in the fluid circuit 119.

[0037] For this purpose, the fluid circuit 119 includes at least one fluid connection (e.g., a pressurized fluid flow pipe) between the components of the de-icing system 101, so that pressurized fluid can flow from one component of the de-icing system 101 to another component of the de-icing system 101.

[0038] Specifically, the fluid circuit 119 enables the pressurized fluid distribution device 111 to: -The pressurized fluid is delivered to the pneumatic de-icing device 109 via the pressurization tank 113 and the first switching device 115, and / or -Remove pressurized fluid and / or evacuate pneumatic de-icing device 109 by means of first switching device 115 and second switching device 117.

[0039] Therefore, the fluid circuit 119 includes: - Supply pipeline, in Figure 1 The solid arrow 121 indicates the route from the pressurized fluid distribution device 111 to the pneumatic de-icing device 109, supplying pressurized fluid to the pneumatic de-icing device 109. -Remove the tubing, in Figure 1 The dashed arrow 123 indicates the extension from the pneumatic de-icing device 109 to the pressurized fluid distribution device 111 to remove pressurized fluid and / or evacuate the pneumatic de-icing device 109.

[0040] Specifically, for the portion of the fluid circuit 119 located between the pneumatic de-icing device 109 and the first switching device 115, the supply line and the removal line can be formed by the same fluid connection.

[0041] With this configuration, the fluid circuit 119 enables: - The downstream portion of the supply pipeline, located between the pressurized fluid distribution device 111 and the pneumatic de-icing device 109, forms the fluid circuit 119 along the flow direction of the pressurized fluid. -Remove the upstream portion of the pipeline that forms the fluid loop 119 between the pneumatic de-icing device 109 and the pressurized fluid distribution device 111, according to the flow direction of the pressurized fluid.

[0042] Alternatively, the fluid circuit 119 is configured such that the supply line and the removal line are separate. Therefore, - The first fluid connection connects the first switching device 115 to the pneumatic de-icing device 109 to supply pressurized fluid to the pneumatic de-icing device 109; and - The first fluid connection connects the pneumatic de-icing device 109 to the first switching device 115 located at the pneumatic de-icing device 109 to remove pressurized fluid and / or evacuate the pneumatic de-icing device 109.

[0043] More specifically, according to the illustrated embodiment, the fluid circuit 119 is configured such that: - The pneumatic de-icing device 109 is fluidly connected to the first switching device 115. -First switching device 115 On the one hand, it is fluidly connected to the second switching device 117. On the other hand, it is fluidly connected to the pressurization tank 113, and -Pressurized fluid distribution equipment 111 On the one hand, it is fluidly connected to the second switching device 117. On the other hand, it is fluidly connected to the pressurized tank 113.

[0044] In addition, Figure 1 In the non-limiting example shown, the de-icing system 101 includes a control unit 127. The control unit 127 is capable of controlling the operation of the de-icing system 101 as a whole by controlling all or some of the components of the de-icing system 101, such as... Figure 1 The figure is shown by a thin dashed line 143.

[0045] Specifically, the control unit 127 executes control rules for the de-icing system 101, which results in pressurizing the pressurization tank 113, inflating, deflating and / or evacuating the pneumatic de-icing device 109.

[0046] The control rules can be implemented, for example, through specific electronic circuitry (particularly included in the electronic box) via dedicated logic for each action in the pressurization of the pressurization tank 113, the inflation, deflation and / or vacuuming of the pneumatic de-icing device 109.

[0047] In another embodiment, the control rules can be integrated into a remote control system (e.g., the avionics system of aircraft 105).

[0048] The control unit 127 can also monitor the proper operation of the de-icing system 101. In particular, in the event of a malfunction of the aircraft 105, this monitoring can be performed by managing signals from at least one sensor 133 and providing feedback.

[0049] exist Figure 1 In the non-limiting example shown, the de-icing system 101 includes two first switching devices 115 respectively connected to two pneumatic de-icing devices 109.

[0050] The present invention is more generally applied to a de-icing system 101 comprising at least one first switching device 115 fluidly connected to at least one pneumatic de-icing device 109.

[0051] As described above, in Figure 1 In the example shown, multiple de-icing systems 101 can be fluidly connected via at least one isolation valve 125, which can be controlled by a control unit 127. In this way, when the isolation valve 125 is open, pressurized fluid can flow between at least two de-icing systems 101. In particular, when one de-icing system fails, another de-icing system 101 can support the other de-icing system 101.

[0052] In addition, in the event of a failure of the pressurized fluid distribution device 111 of the second de-icing system 101, the pressurized fluid distribution device 111 of the first de-icing system 101 can act as an emergency pressurized fluid distribution device 111 of the second de-icing system 101, and thus supply pressurized fluid to the pneumatic de-icing device 109 of the second de-icing system 101, and / or vent the pneumatic de-icing device of the second de-icing system, and / or evacuate the pneumatic de-icing device 109 of the second de-icing system 101.

[0053] exist Figure 1 In the non-limiting example shown, the de-icing system 101 may also include at least one sensor 133 (in particular a pressure sensor 133), at least one check valve 135 and / or at least one pressure limiter 137.

[0054] Specifically, sensor 133 is a pressure sensor configured to measure the pressure of the pressurized fluid at the pneumatic de-icing device 109. In the non-limiting example shown, sensor 133 may be associated with a pair of pneumatic de-icing devices 109 to measure the pressure value at the pneumatic de-icing device 109.

[0055] However, in various embodiments of the invention, the de-icing system 101 includes at least one sensor 133. The number and arrangement of the sensors 133 can be adapted to the number of pneumatic de-icing devices 109 used and / or the need to control the operation of the de-icing system 101.

[0056] Advantageously, sensor 133 enables the transmission of information about the pressure value at the pneumatic de-icing device 109 to, for example, the control unit 127 that controls the de-icing system 101, and thus (if necessary) to regulate the control of the components of the de-icing system 101 in particular by controlling and / or controlling the pressurized fluid distribution device 111.

[0057] In addition, sensor 133 can also be used to detect pressure failures in the pressurized fluid in fluid circuit 119.

[0058] In addition, this sensor 133 can be located at another location in the fluid circuit 119 (e.g., the outlet of the pressurized fluid distribution device 111 and / or the outlet of the pressurized tank 113) to enable monitoring and adjustment (if necessary) of the pressure level in the de-icing system 101.

[0059] Check valve 135 can be arranged in fluid circuit 119 at the outlet of pressurized fluid distribution device 111, i.e., between pressurized fluid distribution device 111 and pressurized tank 113. Check valve 135 prevents any backflow of pressurized fluid toward pressurized fluid distribution device 111, which could damage the pressurized fluid distribution device.

[0060] In addition, similar to the first switching device 115, the second switching device 117 and / or the isolation valve 125 integrated into the de-icing system 101, the check valve 135, as a device designed for use on the aircraft 105 and that may be subjected to low or even sub-zero temperatures, can be heated (e.g. via an integrated or non-integrated heating device) to prevent possible malfunctions.

[0061] Similarly, for similar reasons, the first switching device 115, the second switching device 117, and / or the isolation valve 125 can be heated to prevent any malfunction.

[0062] Pressure limiter 137 may also be arranged in the fluid circuit 119 at the outlet of pressurized tank 113. Therefore, when pressurized tank 113 is full, and / or when pressurized tank 113 has reached its nominal pressure value (i.e., the pressure value intended for operation of de-icing system 101), pressure limiter 137 allows any additional pressurized fluid that may be delivered by pressurized fluid distribution device 111 to be discharged. Thus, pressure limiter 137 allows the pressure in pressurized tank 113 to be maintained at the nominal pressure value.

[0063] Normally, when de-icing is not required, such as after a measurement by sensor 133, the pressurized fluid distribution device 111 can still be activated to regulate the vacuum level in the pneumatic de-icing device 109. In this case, if the pressurized tank 113 has reached the nominal pressure, the pressure limiter 137 can allow fluid from the pressurized fluid distribution device 111 to be discharged.

[0064] In addition, the de-icing system 101 may also include at least one drainage device 139, particularly a drain valve 139, to allow any condensate present in the de-icing system 101 to be drained.

[0065] Figure 2 As referenced Figure 1 The diagram illustrates the usage method 201 of the described de-icing system 101.

[0066] Method 201 includes at least one filling step 203, during which a pressure vessel 113 is filled, the filling of the pressure vessel including pressurizing the pressure vessel 113 with a pressurized fluid (particularly pressurized air).

[0067] Method 201 may also include a vacuuming step, during which at least one pneumatic de-icing device 109 is subjected to a vacuum. The vacuuming step may be performed after, before, or simultaneously with the filling step 203.

[0068] Fill step 203 may include a "fill" mode configuration step, during which: - The output section of the first switching device 115 connected to the second switching device 117 is opened; - The first switching device 115 is specifically connected to the inlet closure of the pressurized tank 113 via a pressure limiter 137; and - The output of the second switching device 117 connected to the pressurized tank 113 is opened.

[0069] In addition, filling step 203 may include at least one of the following sub-steps, which include: - Pressure measurement step, during which sensor 133 measures the pressure in pressure tank 113; and / or - The step of starting the distribution equipment: During the step of starting the distribution equipment, the pressurized fluid distribution equipment 111 is put into operation to supply pressurized fluid to the pressurized tank 113.

[0070] More specifically, the start-up procedure of the distribution equipment will activate the pressurized fluid distribution equipment 111 as long as the pressure measured in the pressurization tank 113 is less than the nominal pressure.

[0071] Alternatively, particularly during the “fill” configuration step, the filling step 203 may include an opening step during which the inlet of the second switching device 117, which is externally connected to the fluid circuit 119, may be opened to reach the nominal pressure in the pressurized tank 113.

[0072] Method 201 also includes at least one inflation step 205, during which the pneumatic de-icing device 109 is inflated (i.e. supplied with pressurized fluid) by pressurized fluid contained in a pressurization tank 113.

[0073] Inflation step 205 may include a configuration step in an "inflation" mode, during which: - The second switching device 117 is closed; - The output of the first switching device 115 connected to the second switching device 117 is closed; and - The first switching device 115 is connected to the output of the pneumatic de-icing device 109 and opened.

[0074] Additionally, inflation step 205 allows the output of the first switching device 115 connected to the pneumatic de-icing device 109 to open within a specified time, ensuring that the pneumatic de-icing device 109 is inflated to its nominal pressure. Therefore, when the nominal pressure of the pneumatic de-icing device 109 is reached, inflation step 205 allows the output of the first switching device 115 connected to the pneumatic de-icing device 109 to close.

[0075] Method 201 also includes at least one venting step 207, during which the pneumatic de-icing device 109 is vented and / or evacuated.

[0076] The venting step 207 may include a filling step, during which the pressurized tank 113 is filled with pressurized fluid from the pneumatic de-icing device 109.

[0077] The venting step 207 may include at least one step consisting of a startup step of starting the distribution device, during which the pressurized fluid distribution device 111 is put into operation to vent and / or evacuate the pneumatic de-icing device 109.

[0078] Additionally, the venting step 207 may include a "venting" mode configuration step, during which: - The first switching device 115 is specifically connected to the inlet closure of the pressurized tank 113 via a pressure limiter 137; and, - The output of the first switching device 115 connected to the second switching device 117 is turned on.

[0079] In addition, the venting step 207 can cause the output of the first switching device 115 connected to the second switching device 117 to open within a predetermined time period to ensure the venting and / or vacuuming of the pneumatic de-icing device 109.

[0080] In fact, inflation step 205 and deflation step 207 can be performed iteratively and / or repeatedly until the relevant surface 103 of the aircraft 105 is completely de-iced.

[0081] Furthermore, when the de-icing system 101 includes multiple pneumatic de-icing devices 109, each dedicated to a different part of the surface 103 of the aircraft 105, the method of use 201 can cause the multiple pneumatic de-icing devices 109, the first switching device 115 and / or the second switching device 117 to be activated simultaneously, sequentially, alternatively or in combination.

[0082] Therefore, at least one de-icing cycle covering all or part of the surface 103 of the aircraft 105 can be defined by dedicated activation of all or part of the pneumatic de-icing device 109, the first switching device 115 and / or the second switching device 117, during which the inflation step 205 and the deflation step 207 are repeated sequentially.

[0083] This de-icing cycle can be repeated until the entire surface 103 covered by the de-icing system 101 has been treated.

[0084] Advantageously, since the various components of the de-icing system 101 are arranged in a single fluid loop 119, the pressurized fluid used by the pneumatic de-icing device 109 is drawn back in when the pneumatic de-icing device 109 is vented and / or evacuated, so as to be stored in the pressurized tank 113.

[0085] Therefore, the de-icing system 101 recirculates the fluid, so that no energy is wasted on recompressing the fluid newly injected into the de-icing system 101.

[0086] Additionally, the second switching device 117 may include a port configured to allow external fluid (i.e., fluid outside the fluid circuit 119) to be injected into the fluid circuit 119.

[0087] Therefore, in the illustrated embodiment, pressurized fluid from another system (e.g., pressurized air from the cabin of aircraft 105) Figure 1 (Indicated by arrow 141) is injected into the fluid circuit 119 at the second switching device 117.

[0088] Then, the external fluid injected into the fluid circuit 119 flows in the fluid circuit 119 and helps to fill the pressurized tank 113 under the action of the pressurized fluid distribution device 111.

[0089] Advantageously, injecting air from the cabin of aircraft 105 allows for the direct use of air at a specific pressure value and limits or even eliminates the energy required to pressurize the injected air (i.e., the energy consumed by the pressurized fluid distribution device 111).

[0090] In summary, in addition to the absence of engine air leakage due to the recirculation of air used by the de-icing system 101, the de-icing system 101 according to the invention also enables a reduction in power consumption due to the recirculation of the pressurized fluid in operation.

[0091] Furthermore, the combination of multiple de-icing systems 101 in the component enables modular components that meet the de-icing requirements of multiple zones, while the redundancy of the de-icing systems 101 ensures the required level of safety for use in the aircraft.

[0092] Of course, the present invention is not limited to the above embodiments, which are provided by way of example only. The present invention includes various modifications, alternatives and other variations that can be conceived by those skilled in the art in the context of the present invention, and in particular any combination of the respective operations described above, which can be used alone or in combination.

Claims

1. A deicing system (101) capable of deicing a surface (103) of an aircraft (105), the deicing system comprising a fluid circuit (119) comprising at least: - a pressurized tank (113), - at least one pneumatic deicing device (109), - at least one first switching device (115), and - at least one second switching device (117), characterized in that the fluid circuit (119) comprises at least one pressurized fluid distribution device (111) configured to: - deliver pressurized fluid to the pneumatic deicing device (109) via the pressurized tank (113) and the first switching device (115), and / or - remove the pressurized fluid from the pneumatic deicing device (109) via the first switching device (115) and the second switching device (117).

2. The de-icing system (101) according to claim 1, characterized in that The pressurized fluid distribution device (111) is configured to cause the pneumatic deicing device (109) to be evacuated via the first switching device (115) and the second switching device (117).

3. The de-icing system (101 ) according to claim 1 or 2, characterized in that The deicing system comprises a control unit (127) configured to control pressurization of the pressurized tank (113), inflation, deflation and / or evacuation of the pneumatic deicing device (109).

4. The de-icing system (101) according to any one of the preceding claims, wherein, The pressurized fluid distribution device (111) is a compressor, in particular an electric compressor.

5. The de-icing system (101 ) according to any one of the preceding claims, characterized in that, The deicing system comprises at least one sensor (133) capable of measuring the pressure of the pressurized fluid at the pneumatic deicing device (109).

6. The de-icing system (101 ) according to any one of the preceding claims, characterized in that, The deicing system comprises a check valve (135), in particular a heated check valve, arranged in the fluid circuit (119) at the outlet of the pressurized fluid distribution device (111).

7. The de-icing system (101 ) according to any one of the preceding claims, characterized in that, The deicing system comprises at least one drainage device (139), in particular a drainage valve (139).

8. The de-icing system (101 ) according to any one of the preceding claims, characterized in that, The deicing system comprises a pressure limiter (137) arranged in the fluid circuit (119) at the outlet of the pressurized tank (113).

9. The de-icing system (101) according to any one of the preceding claims, wherein, The second switching device (117) comprises a port configured to enable an external fluid to be injected into the fluid circuit (119), the external fluid being in particular pressurized air from the cabin of the aircraft (105).

10. A method (201) of using at least one system for deicing a surface (103) of an aircraft (105), the system being a deicing system (101) according to any one of the preceding claims, characterized in that the method comprising at least: - a filling step (203) during which a pressurized tank (113) is filled with pressurized fluid, an inflation step (205) during which at least one pneumatic deicing device (109) is inflated by the pressurized fluid contained in the pressurized tank (113), and - a deflation step (207) during which the pneumatic deicing device (109) is deflated.

11. The method of use (201) of claim 10, wherein: The method of use includes at least one vacuum step during which the pneumatic de-icing device (109) is subjected to a vacuum.

12. The method of use (201) according to claim 10 or 11, characterized in that: The method of use includes at least one filling step during which the pressurized tank (113) is filled with pressurized fluid from the pneumatic de-icing device (109).

13. Use of a method (201) according to any of the preceding claims, characterized in that The inflation step (205) and the deflation step (207) are repeated sequentially.

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