EP4269208A1 - Vorrichtung zur klimatisierung eines fahrzeuginnenraums und fahrzeug damit - Google Patents

Vorrichtung zur klimatisierung eines fahrzeuginnenraums und fahrzeug damit Download PDF

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Publication number
EP4269208A1
EP4269208A1 EP23170280.4A EP23170280A EP4269208A1 EP 4269208 A1 EP4269208 A1 EP 4269208A1 EP 23170280 A EP23170280 A EP 23170280A EP 4269208 A1 EP4269208 A1 EP 4269208A1
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EP
European Patent Office
Prior art keywords
air
inlet
heat exchanger
recycled
air conditioning
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP23170280.4A
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English (en)
French (fr)
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EP4269208B1 (de
Inventor
Huu-Thi Do
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Alstom Holdings SA
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Alstom Holdings SA
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Publication date
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Publication of EP4269208A1 publication Critical patent/EP4269208A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning
    • B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D1/00—Carriages for ordinary railway passenger traffic

Definitions

  • the invention lies in the field of ventilation, heating and air conditioning of confined spaces. It finds particular application in the field of public transport vehicles, such as railway vehicles.
  • HVAC Heating Ventilation
  • Air-Conditioning This ensures passengers a certain degree of thermal comfort resulting in particular from good air circulation in the passenger compartment of the transport vehicle.
  • HVAC systems are not suitable for increasing the flow of fresh air by removing recirculated air. They are generally sized to limit the flow of fresh air and therefore have a reduced fresh air inlet section. Increasing the flow of fresh air involves, among other things, a modification of the fan sucking in the mixture of fresh air and recycled air.
  • An aim of the present invention is to remedy these drawbacks by providing an air conditioning device allowing rapid and inexpensive adaptation of the flow rates of fresh air and recycled air.
  • the invention proposes an air conditioning device of the aforementioned type, characterized in that the air conditioning device further comprises a device for diverting at least part of the recycled air, the deviation device being configured to divert at least part, preferably all, of the recycled air arriving in the air treatment device towards the heat exchanger.
  • the proposed system is thus capable, thanks to the deflection device, of reducing, or even eliminating, the proportion of recycled air in the air blown into the passenger compartment and of increasing the proportion of fresh air, without having to carry out substantial modifications to the air conditioning system.
  • the power of the ventilation device(s) of the heat exchanger is thus exploited to extract the air recycled to the outside of the passenger compartment, without it being necessary to modify or replace the fans already present.
  • the invention also relates to a transport vehicle comprising a passenger compartment and an air conditioning device of the aforementioned type.
  • a transport vehicle 10 comprising a passenger compartment 12 and an air conditioning assembly 14 of the passenger compartment 12.
  • the vehicle 10 is for example a railway vehicle, and preferably a tram, a metro or a regional or high-speed train.
  • the vehicle 10 is a road vehicle, such as a bus, or any other possible vehicle.
  • the passenger compartment 12 defines an interior 16 and an exterior 18 of the vehicle.
  • the passenger compartment 12 comprises for example side walls 20, a floor 22 and a roof 24.
  • the term “upper part” of the passenger compartment 12 means the volume of the passenger compartment located near the roof 24, and the term “lower part” means the volume of the passenger compartment located near the floor. 22.
  • the passenger compartment 12 has air evacuation grilles 26 allowing the extraction of part of the air from the passenger compartment 12 by overpressure.
  • the air evacuation grilles 26 are provided in the upper part of the passenger compartment 12.
  • the passenger compartment 12 is adapted to receive users such as passengers and/or to receive devices, for example electronic devices, and/or goods.
  • the air conditioning assembly 14 comprises an air conditioning device 30, intended to produce treated, cooled or heated air, and an air distribution network capable of distributing the treated air in the interior 16, for example in the means of air distribution pipes (not shown) extending partly in a space provided between a ceiling 31 of the passenger compartment and the roof 24.
  • the air conditioning device 30 makes it possible in particular to modify the temperature in the passenger compartment 12, by taking air from the interior 16 and/or the exterior 18 of the passenger compartment 12, then by blowing air conditioning in the passenger compartment 12.
  • This air conditioning can be heated or cooled, depending on the settings of the air conditioning device 30.
  • the air conditioning device 30 is arranged in a box 32 fixed on the roof 24.
  • the air conditioning device 30 shown in more detail on the figures 2 to 4 , comprises an air treatment device 34, capable of receiving recycled air coming from the interior 16 and/or exterior air coming from the exterior 18 of the passenger compartment 12, and a heat exchanger 36, capable of cooling and/or heating at least part of the air present in the air treatment device 34.
  • the air treatment device 34 and the heat exchanger 36 are both arranged here in box 32.
  • the air conditioning device 30 further comprises a diversion device 38 configured to divert at least part of the recycled air arriving in the air treatment device 34 towards the heat exchanger 36.
  • the box 32 is of substantially parallelepiped shape.
  • the box 32 extends in a longitudinal direction X between a front face 321 and a rear face 322, in a transverse direction Y, perpendicular to the longitudinal direction elevation Z, perpendicular to the longitudinal X and transverse Y directions, between a lower face 324 and an upper face 325.
  • front face and “rear face” are arbitrary, for convenience for the present description. In particular, these terms do not assume the direction of movement of the vehicle, which could move in one direction or another.
  • the lower face 324 of the box 32 is fixed to the roof 24, for example by riveting or by bolting on fixing rails (not shown).
  • the air treatment device 34 is located in the front part of the box 32, that is to say near the front face 321, while the heat exchanger 36 is located in the rear part of the box 32, c that is to say near the rear face 322.
  • the air treatment device 34 and the heat exchanger 36 are separated in a sealed manner by an internal partition 40 extending here in the transverse directions Y and d Z elevation.
  • the air treatment device 34 has an inlet chamber 44 and a mixing chamber 46, said chambers being capable of being fluidly connected to each other.
  • fluidically connected we mean that an air flow is able to pass from the intake chamber 44 to the mixing chamber 46.
  • the intake chamber 44 is located in the front part of the box 32, that is to say near the front face 321, while the mixing chamber 46 is located near the partition 40.
  • the intake chamber 44 is located near the partition 40. inlet 44 and the mixing chamber 46 are partially separated from each other by an internal wall 47.
  • the internal wall 47 extends here parallel to the partition 40 up to a free edge 471 over a height H, measured in the direction of elevation Z and strictly less than the height of the intake 44 and mixing chambers 46.
  • the internal wall 47 projects inside the box 32 from the lower face 324 over a height H, said height H being less than 80% of the height of the intake 44 and mixing chambers 46.
  • the inlet chamber 44 therefore opens onto the mixing chamber 46 at the level of an opening 48 delimited between the free edge 471 of the internal wall 47 and the upper face 325 of the box 32.
  • the intake chamber 44 is here of substantially parallelepiped shape. It has a width L, measured between the side faces 323, between 0.5 m and 2.5 m and a depth p, measured between the front face 321 and the internal wall 47, between 0.1 m and 1, 0 m.
  • the intake chamber 44 has an upper part 50, located near the upper face 325, and a lower part 52, located near the lower face 324.
  • the air treatment device 34 has a first inlet 60 of recycled air coming from the interior 16 of the passenger compartment 12, a second inlet 62 of exterior air coming from the exterior 18 of the passenger compartment 12 and an outlet of air 64 towards the interior 16 of the passenger compartment 12.
  • the first inlet 60 opens into the admission chamber 44, more particularly in the lower part 52 of the admission chamber 44, at the level of the lower face 324 of the box 32.
  • the first inlet 60 has a cross section (that is to say taken in the plane X; Y when the first inlet 60 extends in the direction Z), for example of substantially rectangular shape, with an area between 0 .1 m 2 and 1.25 m 2 .
  • the air coming from the interior 16 of the passenger compartment 12 also called recycled air, enters through this first inlet 60 into the air conditioning device 30.
  • the flow of recycled air is represented schematically on the figures 3 And 4 by the arrow F int .
  • the second inlet 62 opens into the admission chamber 44, more particularly in the upper part 50 of the admission chamber 44, at the level for example of the front face 321 of the box 32.
  • the second inlet 62 has a cross section (that is to say taken in the plane Y; Z when the second inlet 62 extends in the direction X), for example of substantially rectangular shape, with an area between 0 .5 m 2 and 2.5 m 2 .
  • the air coming from the outside 18 of the passenger compartment 12 also called fresh air, enters through this second inlet 62 into the air conditioning device 30.
  • the flow of fresh air is represented schematically on the figures 3 And 4 by the arrow F ext .
  • the recycled air flow and the fresh air flow both arrive in the mixing chamber 46, passing through the opening 48.
  • the air outlet 64 opens into the mixing chamber 46, for example at the lower face 324 of the box 32.
  • the air outlet 64 has a cross section (that is to say taken in the plane X; Y when the air outlet 64 extends in the direction Z), for example of substantially rectangular shape, of area between 0.1 m 2 and 1.25 m 2 .
  • the air present in the mixing chamber 46 leaves the air conditioning device 30 via this air outlet 64.
  • the outgoing air flow is represented schematically on the figures 3 And 4 by the arrow F s .
  • Air circulation through the air treatment device 34 is ensured in a conventional manner by at least one fan 66 (represented schematically on the figures 3 And 4 ), arranged in the air treatment device 34.
  • the upstream of said fan 66 allows the suction of air from the interior 16 and/or the exterior 18 of the passenger compartment 12 through the air inlets 60, 62 towards the admission chamber 44, then into the mixing chamber 46.
  • the downstream of said fan 66 makes it possible to blow the air present in the mixing chamber 46 towards the outlet 64 which opens for example into the network of distribution of the vehicle 10, in order to redistribute this air in the passenger compartment 12.
  • the heat exchanger 36 is intended to exchange heat with the air circulating in the air treatment device 34, and more particularly with the air present in the mixing chamber 46.
  • the heat exchanger 36 is located in the example shown on the figures 2 to 4 at the level of the rear face 322 of the box 32.
  • the heat exchanger 36 is a conventional exchanger and its operation will therefore not be detailed here.
  • the heat exchanger 36 comprises for example a heat pump circuit in which a refrigerant circulates, a compressor and a condenser.
  • the heat exchanger 36 further comprises at least one air inlet 70 opening onto the exterior 18.
  • the heat exchanger 36 comprises on each side face 323 an air inlet 70.
  • the heat exchanger 36 further comprises at least one air outlet 72.
  • the air outlet 72 opens to the exterior 18 of the passenger compartment 12, for example at the level of the upper face 325 of the box 32.
  • the heat exchanger 36 further comprises a ventilation device 74 (represented schematically on the figures 3 And 4 ) capable of generating an air flow between the air inlet(s) 70 and air outlet(s) 72 and of promoting the heat exchange between the air present in the air treatment device 34 and the heat exchanger 36.
  • a ventilation device 74 represented schematically on the figures 3 And 4 .
  • the ventilation device 74 of the heat exchanger 36 preferably has a flow rate greater than or equal to 3000 m 3 /h, in particular greater than 10,000 m 3 /h.
  • the diversion device 38 is capable of diverting at least part of the flow F int of recycled air arriving in the air treatment device 34 towards the heat exchanger 36.
  • the diversion device 38 comprises at least one sheath 76 for supplying the heat exchanger 36 with recycled air and diversion means 78 capable of diverting at least part of the flow F int of recycled air in the direction of the heat exchanger 36.
  • the deflection device 38 further comprises means 80 for controlling the deflection means 78.
  • the deflection device 38 comprises two supply sheaths 76 each extending along a respective side wall 323 of the box 32.
  • Each sheath 76 opens on the one hand onto the lower part 52 of the admission chamber 44 at the level of an opening 761 (visible on the Figure 4 ) provided in the associated side face 323, and on the other hand in the heat exchanger 36 at the level of a recycled air inlet 762 provided in said side face 323.
  • Each sheath 76 is thus capable of fluidly connecting the part low 52 from the inlet chamber 44 to the heat exchanger 36.
  • Each sheath 76 has for example a cross section with an area of between 0.06 m 2 and 0.25 m 2 and a length measured between the opening 761 and the recycled air inlet 762 of between 0.5 m and 2.0m.
  • the diversion means 78 are movable between a recycling configuration, shown on the Figure 3 , in which the air treatment device 34, and more particularly the intake chamber 44, is fluidly isolated from the heat exchanger 36, and a renewal configuration, shown on the Figure 4 , in which the air treatment device 34, and more particularly the intake chamber 44, is fluidly connected with the heat exchanger 36.
  • the recycled air flow F int is capable of joining the mixing chamber 46, but is not capable of joining the heat exchanger 36.
  • the first arrival 60 in recycled air thus opens into the intake chamber 44, then into the mixing chamber 46.
  • the recycled air therefore arrives at the mixing chamber 46 in which it is mixed with the fresh air, before being reinjected into the passenger compartment 12.
  • the first inlet 60 is then isolated from the or each recycled air inlet 762 of the heat exchanger 36, and preferably from each sheath 76.
  • the air conditioning reinjected into the passenger compartment comprises between 60% and 95% recycled air, for 40% to 5% new air.
  • the first inlet 60 of recycled air is connected to each recycled air inlet 762 of the heat exchanger 36 by means of the supply ducts 76. At least part of the recycled air is then diverted through the or each supply sheath 76 to the heat exchanger 36, thanks in particular to the ventilation device 74 of the heat exchanger 36.
  • the air conditioning reinjected into the passenger compartment includes less than 5% recycled air.
  • the diversion means 78 when the diversion means 78 are in renewal configuration, the first inlet 60 is isolated from the mixing chamber 46.
  • the air recycled is then completely diverted through the or each supply sheath 76 to the heat exchanger 36, thanks in particular to the ventilation device 74 of the heat exchanger 36.
  • the air conditioning reinjected into the passenger compartment 12 is then devoid of recycled air.
  • the deflection means 78 comprise a movable valve 82 per sheath 76 and a movable flap 84.
  • Each valve 82 is configured to close a respective opening 761.
  • Each valve 82 is for example mounted movable relative to the box 32 between a shutter position, shown on the Figure 3 , and a passage position, shown on the Figure 4 .
  • each valve 82 is rotatably mounted relative to the box 32, around an axis substantially parallel to the transverse direction Y, between the shutter position and the passage position.
  • each valve 82 is arranged facing a respective opening 761, so as to completely close said opening 761.
  • the lower part 52 of the intake chamber 44 is then fluidly isolated from the sheath 76, and of the heat exchanger 36.
  • each valve 82 extends away from the opening 761 with which it is associated, so that each sheath 76 opens into the lower part 52 of the admission chamber 44, which is then connected fluidly to the sheath 76, and to the heat exchanger 36.
  • each valve 82 is arranged inside the box 32, in the lower part 52 of the intake chamber 44 at the level of a respective opening 761.
  • each valve 82 is composed of a plate here having the shape of a disk portion.
  • the flap 84 is mounted movably inside the intake chamber 44 between an open position, shown on the Figure 3 , and a closed position, shown on the figure 4 .
  • the shutter 84 is for example rotatably mounted relative to the box 32, via a hinge extending along an axis substantially parallel to the transverse direction Y.
  • the flap 84 has for example a substantially rectangular shape, of length Iv measured between two side edges 842 of the flap 84 and of width Lv measured between a connecting edge 843 and a free edge 844.
  • the flap 84 has a length Iv equal to the width L of the admission chamber 44 and a width Lv greater than or equal to the depth p of the admission chamber 44.
  • the connecting edge 843 of the flap 84 is mounted on the front face 321 by means of a hinge (not shown).
  • the flap 84 is configured to isolate the upper part 50 from the lower part 52 of the intake chamber 44.
  • the flap 84 When the flap 84 is in the open position, the free edge 844 of the flap 84 is at a distance from the free edge 471 of the internal wall 47.
  • the flap 84 in the open position, extends along a plane substantially parallel to the face front 321 of the box 32.
  • the upper part 50 and the lower part 52 of the intake chamber are therefore fluidly connected to each other.
  • the shutter 84 partially closes the second inlet 62 of outside air.
  • the flap 84 covers between 50% and 80% of the second air inlet 62.
  • the shutter 84 no longer blocks the second inlet 62 of outside air.
  • the passage of the shutter 84 from the open position to the closed position therefore also has the effect of increasing the useful section of the second outside air inlet 62. It is therefore not necessary to modify the power of the fan(s) 66 of the treatment device to take into account the deviation of the recycled air flow.
  • each flap 82 is integral with the flap 84.
  • each flap 82 is in one piece with the flap 84. The pivoting of the flap 84 from the open position to the closed position is then capable of moving each flap 82 from its shutter position to its passage position.
  • the flap 84 and the flaps 82 are formed from a folded sheet metal, a slot 85 being cut out in the sheet metal at the level of each flap 82, each slot 85 having substantially the shape of the respective opening 761, so that 'in renewal configuration, each light 85 is located opposite the respective opening 761.
  • the control means 80 of the diversion means 78 are capable of controlling the passage of said diversion means 78 from the recycling configuration to the renewal configuration, and vice versa.
  • the control means 80 comprise for example a reception module 90, capable of receiving an instruction for passing the deviation means 78 from one configuration to another, and a control module 92, capable of controlling the movement of the deflection means, and for example the pivoting of each valve 82 and/or shutter 84, by means of a motor (not shown).
  • the air conditioning device 30 takes part of the air present in the passenger compartment 12, in order to mix it with fresh air coming from outside 18 of the passenger compartment 12 and to heat or cool the mixture obtained, before reinjecting it into the passenger compartment 12.
  • the recycled air coming from the interior 16 of the passenger compartment 12, enters the air conditioning device 30 via the first inlet 60 and the fresh air, coming from the outside 18 of the passenger compartment 12, enters in the air conditioning device 30 via the second inlet 62.
  • the air present in the mixing chamber 46 leaves the air conditioning device 30 via the air outlet 64, to the vehicle distribution network 10, in order to be redistributed in the passenger compartment 12.
  • the air evacuation grilles 26 allow the extraction of part of the air from the passenger compartment 12 by excess pressure due to the intake of fresh air into the air conditioning.
  • the diversion means 78 are in recycling configuration. Each valve 82 is in the closed position and the shutter 84 is in the open position.
  • the recycled air flow F int is thus capable of joining the mixing chamber 46, but is not capable of joining the heat exchanger 36.
  • the first inlet 60 is then isolated from the or each recycled air inlet 762 of the heat exchanger 36, and preferably from each sheath 76.
  • the air conditioning device 30 then switches to a second operating mode, in which the diversion means 78 are in renewal configuration.
  • the reception module 90 of the control means 80 receives an instruction to pass the diversion means 78 from the recycling configuration to the renewal configuration.
  • Said instruction is for example sent by an operator, such as the driver of the vehicle 10, or automatically, depending for example on a parameter measured in the passenger compartment 12, such as the temperature.
  • the control module 92 then controls the movement of the diversion means 78 from the recycling configuration to the renewal configuration.
  • each valve 82 then passes into the passage position and the flap 84 passes into the closed position, for example by pivoting.
  • Each valve 82 then extends away from the opening 761 with which it is associated.
  • the lower part 52 of the intake chamber 44 is then fluidly connected to the sheath 76, and thus to the heat exchanger 36.
  • the free edge 844 of the flap 84 bears on the free edge 471 of the internal wall 47 and the lower part 52 is fluidly isolated from the upper part 50 of the intake chamber 44.
  • the interior air flow F int can no longer reach the mixing chamber 46 and is sucked into each sheath 76, then into the heat exchanger 36 by means of the ventilation device 74 thereof.
  • Passing the shutter 84 from the open position to the closed position makes it possible to increase the useful section of the second outside air inlet 62.
  • the air conditioning device 30 thus makes it possible to reduce, or even eliminate, the proportion of recycled air in the air blown into the passenger compartment 12 and to increase the proportion of fresh air, without having to make substantial modifications to the device. air conditioning 30, and in particular on the fan(s) 66.
  • THE figures 5 And 6 illustrate a second embodiment of an air conditioning device 130 according to the invention. Only the elements by which the second embodiment differs from the first embodiment will be described in the remainder of the description. Identical or similar elements will have the corresponding reference of the first embodiment incremented by 100.
  • the air conditioning device 130 comprises an air treatment device 134, a heat exchanger 136 and a diversion device 138.
  • the air treatment device 134 and the heat exchanger 136 are housed here in the same box 132 placed on the roof of the vehicle.
  • the air conditioning device 130 further comprises at least one inlet chamber 139 arranged upstream of a first recycled air inlet 160.
  • the or each arrival chamber 139 is preferably arranged in the space provided between the ceiling 31 and the roof 24.
  • the air conditioning device 130 has two inlet chambers 139.
  • Each arrival chamber 139 opens on the one hand onto the interior 16 of the passenger compartment 12 and on the other hand onto the lower part of the admission chamber 144.
  • the deflection device 138 also includes at least one sheath 176.
  • Each sheath 176 no longer opens into the lower part of the admission chamber 144, but directly into a respective arrival chamber 139.
  • Each sheath 176 opens into a respective inlet chamber 139 at an opening 190, for example provided in a side wall of said chamber 139.
  • each sheath 176 has substantially an L shape and defines an elbow 191 connecting a horizontal branch 192 and a vertical branch 193.
  • the horizontal branch 192 extends along the box 132 in the longitudinal direction extends along the box 132 in the direction of elevation Z.
  • each sheath 176 passes through the roof 24 at the level of openings provided therein. Additional openings are therefore necessary.
  • the deflection device 138 further comprises deflection means 178 comprising a valve 182 per sheath and a flap 184.
  • Each valve 182 is arranged inside a respective supply sheath 176.
  • each valve 184 is arranged in the horizontal branch 192, near the heat exchanger 136.
  • Each valve 182 is movable between a shutter position (shown in dotted lines on the Figure 6 ), in which the inlet chamber 139 is fluidly isolated from the heat exchanger 136, and a passage position (shown in solid lines on the Figure 6 ), in which the inlet chamber 139 is fluidly connected to the heat exchanger 136.
  • each valve 182 The dimensions of each valve 182 are such that in the closed position, each valve 182 sealingly isolates the inlet chamber 139 and the heat exchanger 136.
  • each valve 182 is rotatably mounted around an axis parallel to the direction of elevation Z.
  • Flap 184 is similar to flap 84 of the first embodiment.
  • an additional valve (not shown) is arranged in each inlet chamber 139.
  • Each additional valve is capable of moving from an open position, in which the inlet chamber 139 is fluidly connected to the lower part of the intake chamber 144, and a closed position, in which the inlet chamber 139 is fluidly isolated from the lower part of the intake chamber 144.
  • the air flow coming from the interior of the passenger compartment is thus directly directed towards the ducts 176, avoiding possible problems of turbulence in the lower part 152 of the intake chamber 144.
  • the deflection means 178 do not include a flap 184, but only an additional valve per inlet chamber 139.
  • the operation of the air conditioning device 130 according to the second embodiment is similar to that of the air conditioning device 30 according to the first embodiment.
  • the recycled air coming from the interior 16 of the passenger compartment 12, enters each inlet chamber 139, then enters the intake chamber 144 through a first arrival 160 respective.
  • Fresh air coming from the outside 18 of the passenger compartment 12, enters through the second inlet 162 into the intake chamber 144.
  • Each valve 182 is then in the closed position (dotted lines on the Figure 6 ) and the shutter 184 is in the open position.
  • the recycled air flow is thus capable of joining the mixing chamber 146, but is not capable of joining the heat exchanger 136.
  • the or each additional valve is in the open position.
  • the first arrival 160 is then isolated from the heat exchanger 136.
  • the diversion means 178 pass from the recycling configuration to the renewal configuration.
  • Each valve 182 then passes into the passage position (solid line on the Figure 6 ) and the flap 184 goes into the closed position, for example by pivoting.
  • the or each additional valve goes into the closed position.
  • Each inlet chamber 139 is then fluidly connected to the heat exchanger 136, and is fluidly isolated from the upper part of the intake chamber 144. Thus, the interior air flow can no longer reach the mixing chamber. 146 and is sucked into each sheath 176, then into the heat exchanger 136 by means of the ventilation device 174 thereof.
  • the air conditioning devices 30, 130 according to the invention make it possible to quickly and inexpensively adapt the flow rates of fresh air and recycled air. It is thus possible to move from a recycling configuration, in which the air reinjected into the passenger compartment is a mixture of recycled air and outside air comprising a significant portion of recycled air, to a renewal configuration of air in which the air reinjected into the passenger compartment is a mixture of recycled air and outside air including a small portion of air recycled, or even in which only air coming from outside the passenger compartment is reinjected into it.
  • the ventilation device(s) 74, 174 of the heat exchanger 36, 136 is (are) operated to evacuate the air coming from the interior 16 of the passenger compartment 12 to the exterior 18
  • the passage of the shutter 84, 184 from the open position to the closed position makes it possible to increase the useful section of the second outside air inlet 62, 162, without it being necessary to modify the power of the fan(s). ) 66 of the treatment device 34, 134 to take into account the deviation of the recycled air flow.
  • the deflection device 38, 138 comprises a single supply sheath 76, 176.
  • the air treatment device 34, 134 and the heat exchanger 36, 136 are arranged in two different boxes 32, 132, arranged one close to the other.
  • the deflection means 78 are able to take an intermediate position, in which the first inlet 60 of recycled air is connected both to the mixing chamber 46 and to the heat exchanger 36.
  • the free edge 844 of the flap 84 extends away from the free edge 471 of the internal wall 47 and at least one opening 761 is not entirely closed by a valve 82.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP23170280.4A 2022-04-29 2023-04-27 Vorrichtung zur klimatisierung eines fahrzeuginnenraums und fahrzeug damit Active EP4269208B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2204060A FR3135015B1 (fr) 2022-04-29 2022-04-29 Dispositif de climatisation d'un habitacle de véhicule et véhicule associé

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EP4269208A1 true EP4269208A1 (de) 2023-11-01
EP4269208B1 EP4269208B1 (de) 2025-12-17

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309731A (en) * 1991-12-27 1994-05-10 Nippondenso Co., Ltd. Air conditioning apparatus
DE19847504C1 (de) * 1998-10-15 2000-11-16 Deutsche Bahn Ag Verfahren zur Steuerung der Luftvolumenströme in einer raumlufttechnischen Anlage
JP3190824B2 (ja) * 1995-06-16 2001-07-23 株式会社日立製作所 鉄道車両用空調装置
US20110053484A1 (en) * 2008-05-30 2011-03-03 Mitsubishi Electric Corporation Vehicle air-conditioning system
US9821626B2 (en) * 2011-05-20 2017-11-21 Valeo Systemes Thermiques Heating, ventilation and/or air-conditioning apparatus including an air flow channel bypassing a heat exchanger
US20200148025A1 (en) * 2017-07-25 2020-05-14 Denso Corporation Air-conditioning unit for vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309731A (en) * 1991-12-27 1994-05-10 Nippondenso Co., Ltd. Air conditioning apparatus
JP3190824B2 (ja) * 1995-06-16 2001-07-23 株式会社日立製作所 鉄道車両用空調装置
DE19847504C1 (de) * 1998-10-15 2000-11-16 Deutsche Bahn Ag Verfahren zur Steuerung der Luftvolumenströme in einer raumlufttechnischen Anlage
US20110053484A1 (en) * 2008-05-30 2011-03-03 Mitsubishi Electric Corporation Vehicle air-conditioning system
US9821626B2 (en) * 2011-05-20 2017-11-21 Valeo Systemes Thermiques Heating, ventilation and/or air-conditioning apparatus including an air flow channel bypassing a heat exchanger
US20200148025A1 (en) * 2017-07-25 2020-05-14 Denso Corporation Air-conditioning unit for vehicle

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FR3135015A1 (fr) 2023-11-03
FR3135015B1 (fr) 2024-05-31
EP4269208B1 (de) 2025-12-17

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