Tire heating system and method
The closed heating enclosure with electrical resistors and integrated control systems addresses the challenge of uneven tire heating and pressure, providing precise and efficient temperature and pressure uniformity for optimal racing conditions.
Patent Information
- Application Number
- FR2024002095
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2044-03-01
AI Technical Summary
Existing tire heating systems fail to ensure precise and homogeneous temperature and pressure control across multiple tires, leading to inefficiencies and potential damage due to uneven heating and pressure distribution.
A closed heating enclosure with electrical resistors, temperature and pressure control systems, and fans to maintain uniform temperature and pressure across multiple tires, using a method that includes preheating, temperature regulation, and pressure adjustment.
Achieves precise and efficient tire heating with uniform temperature and pressure distribution, reducing energy consumption and preventing damage, while ensuring optimal tire conditions for racing.
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
Title of the invention: Tire heating system and method Technical field of the invention
[0001] The present invention relates to heating systems intended to place at least one tire at a predetermined set temperature.
[0002] The invention also relates to a method for heating tires to place at least one tire at a predetermined set temperature. State of the art
[0003] In the field of motorsport, and more generally in the field of mechanical sport, it is known to want to control the pressure and temperature of the vehicle's tires to ensure better performance on the road and / or optimization of the use of the tire. Indeed, depending on the temperature of a tire and its pressure, its behavior on the road will be different. Since the stresses on the tire in the case of mechanical sport are very significant, it is essential to guarantee optimal and precise temperature and pressure conditions.
[0004] Furthermore, in order to best control a vehicle, it is preferable to guarantee homogeneity of temperature and pressure between each of the vehicle's tires. In the case of a competition, it is customary to have a different temperature and pressure between each tire at the start of an event.
[0005] For this purpose, it is known from the state of the art to provide tire heaters in the form of heated blankets, or thermal cabins. These systems are configured to bring the tires to an optimal temperature for racing.
[0006] Although these solutions are satisfactory in that they allow the tires to be heated, they generally do not guarantee temperature uniformity between all the tires. In fact, each heating blanket associated with each tire is independent. Furthermore, these blankets do not heat the rims. Therefore, there is generally a large loss of heat.
[0007] In the case of thermal cabins, it is very difficult to guarantee a stable heating temperature given that the heat source is a burner. It is therefore difficult to guarantee that the tire has not exceeded the heating tolerances of a manufacturer (between 90°C and 100°C depending on the model).
[0008] There is therefore a need to find a system capable of heating a set of tires to a predetermined temperature with great precision and great temperature homogeneity between the tires of the set of tires.
[0009] Object of the invention
[0010] The present invention aims to propose a solution which meets all or
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
[0017]
[0018]
[0019] part of the above problems. This goal can be achieved by implementing a heating system intended to place at least one tire at a predetermined set temperature, the heating system comprising: - at least one closed heating enclosure internally delimiting an internal volume for receiving said at least one tire; - a temperature control system at least partially arranged in the heating enclosure, comprising at least one heating device and at least one temperature sensor, said heating device being configured to heat the air contained in the internal volume of the heating enclosure, said at least one temperature sensor being configured to measure an internal temperature prevailing in the internal volume of the heating enclosure; the temperature control system being further configured to actuate the heating device when the internal temperature measured by the temperature sensor is strictly lower than the set temperature; the heating device being an electrically powered heating device comprising at least one electrical resistor. The provisions described above make it possible to propose a tire heating system allowing efficient and precise heating of the tires to a predetermined set temperature while limiting energy consumption and protecting users of the heating system. Indeed, the use of at least one electrical resistance makes it possible to heat a set of four tires with a power of less than 2000 W. The heating system may further have one or more of the following characteristics, taken alone or in combination. According to one embodiment, the heating device comprises three electrical resistors. For example, said three electrical resistors are distributed uniformly at a receiving surface of the heating enclosure. According to one embodiment, the receiving surface is arranged at the bottom of the heating enclosure in the direction of gravity. According to one embodiment, the tires are intended to be placed above the electrical resistances in the direction of gravity. According to one embodiment, the at least one electrical resistor is a 1000 W electrical resistor. According to one embodiment, the internal volume of the heating enclosure defines a housing intended to receive the tires. According to one embodiment, the temperature sensor comprises a temperature probe configured to measure a temperature within one of the tires.
[0020] Generally, the heating system is configured to heat at least two tires and in particular four tires.
[0021] According to one embodiment, the set temperature is between 70°C and 100°C, in particular between 75°C and 85°C, and in particular substantially equal to 80°C.
[0022] According to one embodiment, the temperature control system comprises a first temperature sensor intended to measure a temperature prevailing inside a first tire, and a second temperature sensor intended to measure a temperature prevailing inside a second tire.
[0023] In this way, it is possible to have a precise measurement of the temperature prevailing in each of the tires, it is therefore possible to control the homogeneity of the heating.
[0024] According to one embodiment, the temperature regulation system comprises at least one fan configured to agitate the air contained in the internal volume of the heating enclosure to homogenize the internal temperature prevailing in the internal volume of the heating enclosure.
[0025] Thus, it is possible to act on the temperature homogeneity inside the enclosure, the placement of the tires at the set temperature is thus more reliable and more precise.
[0026] According to one embodiment, the temperature regulation system comprises at least one upper fan arranged above the housing intended to receive the tires, in the direction of gravity.
[0027] According to one embodiment, the at least one upper fan is configured to direct a flow of hot air coming from the rims of the tires, towards the walls of the heating enclosure.
[0028] According to one embodiment, the temperature regulation system comprises at least one lower fan arranged under the housing intended to receive the tires, in the direction of gravity.
[0029] According to one embodiment, said at least one lower fan is arranged at a wall adjacent to the receiving surface. In this way, it is possible to prevent the electrical resistors from damaging the at least one lower fan.
[0030] Advantageously, the at least one lower fan is in fluid communication with a guide duct configured to guide air toward the rims of the tires. Thus, the at least one lower fan can be configured to blow air horizontally and the guide duct makes it possible to direct a flow of hot air toward the rims, in a direction opposite to gravity.
[0031] Thus, the spatial distribution of the upper and lower fans makes it possible to better homogenize the internal temperature prevailing in the internal volume of the heating enclosure. Furthermore, the guidance of the air flow by the at least one lower fan towards the rims, and the guidance of the air flow by the at least one upper fan towards the walls of the heating chamber makes it possible to form an air circulation circuit in the heating chamber. The heating of the tires is thus optimized.
[0032] According to one embodiment, the heating system further comprises a pressure control system comprising at least one valve and at least one pressure sensor, said at least one valve being intended to allow or alternatively prohibit inflation of one of the tires, to increase or decrease an inflation pressure prevailing inside said tire, the pressure sensor being intended to measure said inflation pressure.
[0033] Thus, it is possible to adapt the tire pressure at the same time as its temperature. This makes it possible to prepare tires for a car race.
[0034] According to one embodiment, said at least one valve is a valve manually operated by a user.
[0035] According to one embodiment, the pressure control system comprises a pressure valve and a pressure sensor associated with each tire, the heating system comprising a control unit configured to receive a pressure value from each of the pressure sensors and to selectively actuate each pressure valve as a function of the pressure difference existing between the pressure values communicated by the pressure sensors, in a manner making it possible to set a pressure difference between the two tires of less than 0.05 bar, and in particular of less than 0.01 bar.
[0036] Thus, it is possible to guarantee a homogeneous distribution of pressure in the tires before they leave the heating chamber.
[0037] It is well understood that one bar is equal to 105 Pa.
[0038] According to one embodiment, the control unit is configured to selectively actuate each pressure valve automatically, for example according to an algorithm recorded in a memory of the control unit.
[0039] According to one embodiment, the heating system further comprises a tire support comprising a plurality of receiving planes and at least one spacer separating two receiving planes, each plane of the plurality of receiving planes being intended to receive a tire.
[0040] In this way, the storage of the tires in the heating enclosure is facilitated and stable for the safety of the users. Furthermore, the presence of a spacer on each receiving plane makes it possible to separate the tires to allow good air circulation, in particular when a plurality of tires are housed in the internal volume of the heating enclosure.
[0041] According to one embodiment, the heating system comprises a first heating enclosure intended to receive four tires, and a second heating enclosure heater intended to receive four other tires.
[0042] In this way, it is possible to maximize the number of tires that can be heated by the heating system.
[0043] It is well understood that the number of heating devices, the number of temperature sensors, the number of valves, the number of fans, and the number of pressure sensors is multiplied by the number of heating enclosures, to equip all of the heating enclosures.
[0044] The object of the invention can also be achieved by implementing a tire heating method to place at least one tire at a predetermined set temperature, the heating method comprising the following successive steps: - a step of providing a heating system as described previously; - a preheating step using electrical energy, in which the heating device is activated to heat the internal volume of the heating enclosure to a temperature substantially equal to the set temperature; - an introduction step, in which said at least one tire is introduced into the internal volume of the heating enclosure; - an electrical heating step in which the temperature control system maintains the internal temperature of the internal volume at a temperature substantially equal to the set temperature in the internal volume for a predetermined heating duration.
[0045] The arrangements described above make it possible to propose a heating method for heating tires precisely, with efficient management of the energy required for such heating. Indeed, the use of heating by electrical energy makes it possible to carry out sufficient heating with a lower energy demand than heating by thermal energy, while limiting CO2 emissions.
[0046] The heating method may further have one or more of the following characteristics, taken alone or in combination.
[0047] According to one embodiment, the preheating step is carried out for at least 15 min, and in particular for a duration of between 18 and 20 min.
[0048] According to one embodiment, the duration of the heating step is greater than 90 minutes.
[0049] According to one embodiment, the heating step is implemented as long as a temperature difference between the temperature measured by the first temperature sensor and the temperature measured by the second temperature sensor is greater than or equal to 2°C.
[0050] Thus, it is possible to guarantee homogeneous heating between the two tires.
[0051] According to one embodiment, the heating method comprises a step of putting in pressure, wherein the pressure control system places the first tire and the second tire at an internal pressure such that a pressure difference between the two tires is less than 0.05 bar, and in particular less than 0.01 bar.
[0052] Thus, it is possible to guarantee good pressure homogeneity between the two tires.
[0053] Brief description of the drawings
[0054] Other aspects, aims, advantages and characteristics of the invention will appear better on reading the following detailed description of preferred embodiments thereof, given by way of non-limiting example, and made with reference to the appended drawings in which:
[0055] [Fig-1] [Fig.l] is a schematic view of a heating system according to a mode particular embodiment of the invention.
[0056] [Fig.2] [Fig.2] is a schematic view of a heating method according to a particular embodiment of the invention. Detailed description
[0057] In the figures and in the remainder of the description, the same references represent identical or similar elements. In addition, the different elements are not shown to scale so as to enhance the clarity of the figures. Furthermore, the different embodiments and variants are not mutually exclusive and can be combined with each other.
[0058] As can be seen in [Fig.l], the invention relates to a heating system 1 intended to place at least one tire PI, P2, P3, P4 at a predetermined set temperature. In general, the heating system 1 sees its application in the field of motorsport, it can then be configured to heat at least two tires PI, P2, P3, P4 and in particular four tires PI, P2, P3, P4. [Fig.l] illustrates in particular an embodiment in which the heating system is intended to heat two sets of four tires PI, P2, P3, P4, i.e. eight tires.
[0059] In order to obtain optimal performance on the road, the set temperature is generally chosen between 70°C and 100°C, in particular between 75°C and 85°C, and in particular substantially equal to 80°C. Such a value is however not limiting, and may depend on the materials constituting the tire.
[0060] The heating system 1 comprises at least one closed heating enclosure 10, 12 internally delimiting an internal volume 11 for receiving said at least one tire PI, P2, P3, P4. More precisely, the internal volume 11 of the heating enclosure 10, 12 can define a housing intended to receive the tires PI, P2, P3, P4. [Fig.l] illustrates a variant in which the heating system 1 comprises a first heating enclosure 10 intended to receive four tires PI, P2, P3, P4, and a second heating enclosure 12 intended to receive four other tires PI, P2, P3, P4. In this way, it is possible to maximize the number of tires PI, P2, P3, P4 which can be heated by the heating system 1.
[0061] The heating system 1 may further comprise a tire support 40 comprising a plurality of receiving planes 41 and at least one spacer 43 separating two receiving planes 41, each plane of the plurality of receiving planes 41 being intended to receive a tire PI, P2, P3, P4. In this way, the storage of the tires PI, P2, P3, P4 in the heating enclosure 10, 12 is facilitated. Furthermore, the presence of a spacer 43 in each receiving plane 41 makes it possible to separate the tires PI, P2, P3, P4 to allow good circulation of the air, in particular when a plurality of tires PI, P2, P3, P4 is housed in the internal volume 11 of the heating enclosure 10, 12. According to one embodiment, the spacers 43 can serve as support for one or more of the constituent elements of the pressure regulation system 30 which will be described later.Thus, the spacers 43 can comprise said pressure regulation system 30 making it possible to add or remove air during heating, while checking the pressures of the tires PI, P2, P3, P4, without handling said tires PI, P2, P3, P4.
[0062] The heating system 1 also comprises a temperature control system 20 at least partially arranged in the heating enclosure 10, 12. The temperature control system 20 comprises at least one heating device 21 and at least one temperature sensor 23.
[0063] The heating device 21 is an electrically powered heating device 21 comprising at least one electrical resistor. [Fig.l] illustrates in particular a heating device comprising three electrical resistors per heating enclosure 10, 12. For example, the electrical resistors may be 1000 W electrical resistors. Advantageously, the electrical resistors may be distributed uniformly at a receiving surface of the heating enclosure 10, 12. The tires P1, P2, P3, P4 may then be placed above the electrical resistors in the direction of gravity. The heating device 21 is configured to heat the air contained in the internal volume 11 of the heating enclosure 10, 12.
[0064] Said at least one temperature sensor 23 is configured to measure an internal temperature prevailing in the internal volume 11 of the heating enclosure 10, 12, such as for example a thermometer. Furthermore, it is possible that the at least one temperature sensor 23 comprises a temperature probe configured to measure a temperature inside one of the tires PI, P2, P3, P4, and / or each tire PI, P2, P3, P4. In the case where at least two tires PI, P2 are heated, the temperature control system 20 may comprise a first temperature sensor 23 intended to measure a temperature prevailing inside a first tire PI, and a second temperature sensor 24 intended to measure a temperature prevailing inside a second tire P2. In this way, it is possible to have an accurate measurement of the temperature prevailing in each of the tires PI, P2, P3, P4, it is therefore possible to control the homogeneity of the heating.
[0065] Thus, the heating device 21 and the temperature sensor 23 allow the temperature control system 20 to actuate the heating device 21 when the internal temperature measured by the temperature sensor 23 is strictly lower than the set temperature.
[0066] According to the non-limiting variant shown in [Fig.l], the temperature control system 20 may also comprise at least one fan 25, 27 configured to agitate the air contained in the internal volume 11 of the heating enclosure 10, 12 to homogenize the internal temperature prevailing in the internal volume 11 of the heating enclosure 10, 12. Thus, it is possible to act on the temperature homogeneity inside the enclosure. The placement of the tires P1, P2, P3, P4 at the set temperature is thus more reliable and more precise. For example, the temperature control system 20 may comprise at least one upper fan 25 arranged above the housing intended to receive the tires P1, P2, P3, P4, in the direction of gravity. [Fig.l] illustrates a variant where each heating enclosure 10, 12 comprises three upper fans 25.The upper fans 25 can for example be configured to direct a flow of hot air coming from the rims of the tires P1, P2, P3, P4, towards the walls of the heating enclosure 10, 12. .
[0067] The temperature control system 20 may also comprise at least one lower fan 27 arranged under the housing intended to receive the tires P1, P2, P3, P4, in the direction of gravity. [Fig.l] illustrates a variant where each heating enclosure 10, 12 comprises two lower fans 27. Thus, the spatial distribution of the upper and lower fans 25, 27 makes it possible to better homogenize the internal temperature prevailing in the internal volume 11 of the heating enclosure 10, 12. More precisely, said at least one lower fan 27 may be arranged at a wall adjacent to the receiving surface on which the electrical resistors 21 are arranged. In this way, it is possible to prevent the electrical resistors 21 from damaging the at least one lower fan 27.Advantageously, the at least one lower fan 27 may be in fluid communication with a guide duct configured to guide the air towards the rims of the tires P1, P2, P3, P4. Thus, the at least one lower fan 27 may be configured to blow air horizontally and the guide duct makes it possible to direct a flow of hot air towards the rims, in a direction opposite to gravity.
[0068] The guidance of the air flow by the at least one lower fan 27 towards the rims, and the guidance of the air flow by the at least one upper fan 25 towards the walls of the heating enclosure 10, 12 makes it possible to form an air circulation circuit in the heating enclosure 10, 12. The heating of the tires P1, P2, P3, P4 is thus optimized.
[0069] The heating system 1 may advantageously comprise a pressure control system 30 comprising at least one valve 31 and at least one pressure sensor 33. Each valve 31 may be intended to allow or alternatively prohibit inflation of one of the tires PI, P2, P3, P4, to increase or decrease an inflation pressure prevailing inside said tire PI, P2, P3, P4. The pressure sensor 33 is intended to measure said inflation pressure. Thus, it is possible to adapt the pressure of the tires PI, P2, P3, P4 at the same time as their temperature. This makes it possible to prepare tires PI, P2, P3, P4 for a car race. Depending on the embodiment chosen, it may be provided that each valve 31 is manually actuated by a user. The arrangements previously described also make it possible to control the pressure of the tires PI, P2, P3, P4 without handling them.
[0070] As can be seen in the variant shown in [Fig. 1], each tire is connected to a specific valve 31, and the entire inflation system is connected to a main valve 32. In the case where several tires PI, P2, P3, P4 are to be heated to the set temperature, it is advantageous for the pressure control system 30 to comprise a pressure valve 31 and a pressure sensor 33 associated with each tire PI, P2, P3, P4. In this case, a control unit 35 can be configured to receive a pressure value from each of the pressure sensors 33 and to selectively actuate each pressure valve 31 as a function of the pressure difference existing between the pressure values communicated by the pressure sensors 33, in a manner making it possible to set a pressure difference between the two tires PI, P2, P3, P4 less than 0.05 bar, and in particular less than 0.01 bar.It is therefore well understood that one way of homogenizing the pressure between the different tires can consist either of inflating a tire having a lower internal pressure than another tire, or of deflating a tire having a higher internal pressure than the other tires, or both. Thus, it is possible to guarantee a homogeneous distribution of the pressure in the tires PI, P2, P3, P4 before they leave the heating enclosure 10, 12. The control unit 35 can therefore make it possible to control the pressure of the tires PI, P2, P3, P4 automatically, and without handling the tires PI, P2, P3, P4.
[0071] It is well understood that the number of heating devices, the number of temperature sensors, the number of valves 31, the number of fans 25, 27, and the number of pressure sensors 33 is not limited by the representation made in [Fig.l], and that a person skilled in the art can modify these numbers as a function of the number of heating enclosures 10, 12, to equip all of the heating enclosures 10, 12.
[0072] All of the arrangements previously described make it possible to propose a heating system 1 for tires PI, P2, P3, P4 allowing efficient and precise heating of the tires PI, P2, P3, P4 to a predetermined set temperature while limiting energy consumption, and protecting the users of the heating system 1. Indeed, the use of at least one electrical resistor makes it possible to heat a set of four tires PI, P2, P3, P4 with a power of less than 2000 W.
[0073] As illustrated in [Fig. 1], the invention also relates to a method for heating tires PI, P2, P3, P4 to place at least one tire PI, P2, P3, P4 at a predetermined set temperature.
[0074] The heating method firstly comprises a step E1 of providing a heating system 1 as described previously.
[0075] Then the heating method comprises a preheating step E2 by electrical energy, in which the heating device 21 is activated to heat the internal volume 11 of the heating enclosure 10, 12 to a temperature substantially equal to the set temperature. For example, the preheating step E2 is implemented for at least 15 min, and in particular for a duration of between 18 and 20 min.
[0076] The heating method then comprises an introduction step E3, in which said at least one tire PI, P2, P3, P4 is introduced into the internal volume 11 of the heating enclosure 10, 12.
[0077] A heating step E4 by electrical energy is then implemented, in which the temperature control system 20 maintains the internal temperature of the internal volume 11 at a temperature substantially equal to the set temperature in the internal volume 11 for a predetermined heating duration. Generally, the heating duration is greater than or equal to 90 minutes. It may be provided that the heating step E4 is implemented as long as a temperature difference between the temperature measured by the first temperature sensor 23 and the temperature measured by the second temperature sensor 24 is greater than or equal to 2°C. Thus, it is possible to guarantee homogeneous heating between the two tires P1, P2, P3, P4.In other words, the heating device 21 can heat the air contained in the internal volume 11 as long as the pressure measured by the temperature sensor 23, 24 measures a temperature less than 2°C lower than the set temperature.
[0078] According to one embodiment, the heating method may also comprise a pressurization step E5, in which the pressure control system 30 places the first tire PI and the second tire P2 at an internal pressure such that a pressure difference between the two tires PI, P2 is less than 0.05 bar, and in particular 0.01 bar.. Thus, it is possible to guarantee good pressure homogeneity between the two tires PI, P2, P3, P4. However, it is entirely possible to provide that the tires PI, P2, P3, P4 have different setpoint values. This pressurization step E5 can be implemented at the same time as the heating step E4. Advantageously, it can also be provided to implement the heating step E4 as long as a pressure difference between the two tires PI, P2 is greater than 0.05 bar, and in particular greater than 0.01 bar.
[0079] The arrangements described above make it possible to propose a heating method for precisely heating tires PI, P2, P3, P4, with efficient management of the energy required for such heating. Indeed, the use of heating by electrical energy makes it possible to carry out sufficient heating with a lower energy demand than heating by thermal energy, while limiting CO2 emissions.
Claims
Claims
1. Heating system (1) intended to place at least one tire (PI, P2, P3, P4) at a predetermined set temperature, the heating system (1) comprising: • at least one closed heating enclosure (10, 12) internally delimiting an internal volume (11) for receiving said at least one tire (PI, P2, P3, P4); • a temperature regulation system (20) at least partially arranged in the heating enclosure (10, 12), comprising at least one heating device (21) and at least one temperature sensor (23), said heating device (21) being configured to heat the air contained in the internal volume (11) of the heating enclosure (10, 12), said at least one temperature sensor (23) being configured to measure an internal temperature prevailing in the internal volume (11) of the heating enclosure (10, 12);the temperature control system (20) being further configured to actuate the heating device (21) when the internal temperature measured by the temperature sensor (23) is strictly lower than the set temperature; the heating device (21) being an electrically powered heating device (21) comprising at least one electrical resistor.;
2. A heating system (1) according to claim 1 for placing at least two tires (PI, P2, P3, P4) at the set temperature, wherein the temperature control system (20) comprises a first temperature sensor (23) for measuring a temperature prevailing inside a first tire (PI), and a second temperature sensor (24) for measuring a temperature prevailing inside a second tire (P2).
3. Heating system (1) according to any one of claims 1 or 2, wherein the temperature control system (20) comprises at least one fan (25, 27) configured to agitate the air contained in the internal volume (11) of the heating enclosure (10, 12) to homogenize the internal temperature prevailing in the internal volume (11) of the heating enclosure (10, 12).
4. Heating system (1) according to any one of claims 1 to 3, further comprising a pressure control system (30) comprising at least one valve (31) and at least one pressure sensor (33), said at least one valve (31) being intended to allow or alternatively prohibit inflation of one of the tires (PI, P2, P3, P4), to increase or decrease an inflation pressure prevailing inside said tire (PI, P2, P3, P4), the pressure sensor (33) being intended to measure said inflation pressure.
5. Heating system (1) according to claim 4 intended to place at least two tires (PI, P2, P3, P4) at the set temperature, the pressure control system (30) comprising a pressure valve (31) and a pressure sensor (33) associated with each tire (PI, P2, P3, P4), the heating system (1) comprising a control unit (35) configured to receive a pressure value from each of the pressure sensors (33) and to selectively actuate each pressure valve (31) as a function of the pressure difference existing between the pressure values communicated by the pressure sensors (33), in a manner making it possible to set a pressure difference between the two tires (PI, P2, P3, P4) less than 0.05 bar, and in particular less than 0.01 bar.
6. Heating system (1) according to any one of claims 1 to 5, further comprising a tire support (40) comprising a plurality of receiving planes (41) and at least one spacer (43) separating two receiving planes (41), each plane of the plurality of receiving planes (41) being intended to receive a tire (P1, P2, P3, P4).
7. Heating system (1) according to any one of claims 1 to 6, comprising a first heating enclosure (10) intended to receive four tires (PI, P2, P3, P4), and a second heating enclosure (12) intended to receive four other tires (PI, P2, P3, P4).
8. A method of heating tires (PI, P2, P3, P4) to place at least one tire (PI, P2, P3, P4) at a predetermined set temperature, the heating method comprising the following successive steps: • a step of providing (El) a heating system (1) according to any one of claims 1 to 7; • a step of preheating (E2) by electrical energy, in which the heating device (21) is activated to heat the internal volume (11) of the heating enclosure (10, 12) at a temperature substantially equal to the set temperature; • an introduction step (E3), in which said at least one tire (PI, P2, P3, P4) is introduced into the internal volume (11) of the heating enclosure (10, 12); • a heating step (E4) by electrical energy in which the temperature regulation system (20) maintains the internal temperature of the internal volume (11) at a temperature substantially equal to the set temperature in the internal volume (11) for a predetermined heating duration.
9. A method of heating tires (PI, P2, P3, P4) according to claim 8, wherein the providing step (El) comprises providing a heating system (1) according to claim 2, and wherein the heating step (E4) is carried out as long as a temperature difference between the temperature measured by the first temperature sensor (23) and the temperature measured by the second temperature sensor (24) is greater than or equal to 2°C.
10. A method of heating tires (PI, P2, P3, P4) according to any one of claims 8 or 9, wherein the providing step (El) comprises providing a heating system (1) according to claim 5, the heating method comprising a pressurizing step (E5), in which the pressure control system (30) places the first tire (PI) and the second tire (P2) at an internal pressure such that a pressure difference between the two tires (PI, P2) is less than 0.05 bar, and in particular less than 0.01 bar.
Citation Information
Patent Citations
Reifenwärmer
DE102019123850A1
Tyrewarmer, in particular for tyres to be used in motor-cycling and motor-racing
EP2173576A1