Abstract: The invention concerns an air ventilation module for a cabin, in particular for an automobile. The module comprises a housing able to be installed in a chosen location in the cabin, the housing having an air inlet and at least one air outlet and accommodating an air propulsion member comprising at least one motor and a rotary element for moving the air, which is accommodated in an internal chamber of the housing. The module can also comprise a filter for also providing a filtration function. Application in particular to automobile equipment.

Abstract: The invention concerns a method for reducing preheating time and for homogenizing temperatures in a passenger compartment, for example of a motor vehicle, wherein the preheating dynamics is improved, which consists in adjusting soft air diffusion air speed in an optimized range of values. In one embodiment, the air circulating device comprises at least a ventilator (8) and at least a soft air diffusion conduit (2), having at its open end an air permeable panel (4) which ensures a soft air diffusion in the passenger compartment. The invention is characterized in that the ventilator, the conduit (2) and the panel (4) are dimensioned so that, at maximum ventilated air flow rate, the diffused air speed ranges between 2 and 5 m/s. The device further comprises at least a ventilation conduit (3), said conduit being dimensioned so that, at maximum air flow blown by the ventilator, the air speed at the ventilating nozzles substantially ranges between 2 m/s and 10 m/s.

Abstract: The invention relates to a device for delivering ventilation air to the front of the cabin (6) of a motor vehicle, this ventilation air being delivered by a delivery box (11) of a heating, ventilation and/or air-conditioning unit, said device comprising at least one ventilation pipe (9) supplying at least one air vent (16a, 16b, 17a, 17b) provided in the dashboard (1), said ventilation pipe (9) being formed in a delivery module (8) which runs transversely under the upper face (2) of the dashboard (1), and splitting downstream in the direction of flow of the ventilation air into at least one “gentle” ventilation pipe (13) which opens onto the, upper face (2) of the dashboard (1) via ventilation orifices (14) of large cross section and into at least one “forced” ventilation pipe (15) which supplies at least one air vent (16a, 16b, 17a, 17b) of small cross section arranged on the dashboard (1) facing the cabin (6).

Abstract: The invention relates to a device for air-conditioning a cabin (3) of a motor vehicle, comprising an air-conditioning unit (5) installed in front of the dashboard (2), able to be supplied with external air and/or with recycled air taken from the cabin and passing through a recycling pipe (9) arranged in the dashboard (1), and able to deliver a flow of conditioned air to an air delivery pipe (18) connecting said unit (5) to the rear region (19) of the cabin (3), wherein there is provided, in the dashboard (1), a branch pipe (21) connecting said recycling pipe (9) to said delivery pipe (18), said branch pipe (21) dividing the delivery pipe (18) into an upstream portion (18b) situated between the unit (5) and the junction (23) with the branch pipe (21), and into a downstream portion (18a) situated between said junction (23) and the vent and, in said junction (23), a rear recycling shutter (22) able to adopt at least two positions, a first position (P1) in which it closes off the entrance (24) to the branch pipe

Abstract: A heating and/or air-conditioning installation has a de-icing outlet with a de-icing opening adjoining a window, an air-diffusion element with a low output per unit surface area, and an air-distributing element. The air-distributing element has at least a first and a second position. In the first position it blocks the air-diffusion element to ensure de-icing of the window. In the second, it partially blocks the de-icing region so that the output per unit surface area via the de-icing region corresponds to diffusion at a low output per unit surface area, such that the de-icing region and the air-diffusion element provide air diffusion at a low output per unit surface area and their air flows mix.

Abstract: The air conditioning installation has air treatment and distribution means in a housing with air outlets on an upper face. De-icing and central aeration ducts are in an oblong diffusion unit above the upper face of the housing and under the upper fascia of the dashboard. This upper fascia has a diffusing surface in excess of 1.5 dm2 and preferably in excess of 2.5 dm2. In an embodiment, the diffusing surface is produced by multiple perforations.

Abstract: A fan causes a flow of cold air and warm air into the internal space of the passenger compartment of a vehicle. Air extraction channels connected to corresponding extraction vents are distributed at different locations in the passenger compartment. Controllable flaps selectively apportion and control the distribution of the extracted airflow between the different extraction channels.

Abstract: A vehicle with a heating/air-conditioning installation has, on the one hand, a heating and air-conditioning apparatus including a heating radiator, an evaporator and an air-distribution device and, on the other hand, a compressor and a condenser. The compressor is an electric compressor. The condenser is cooled by a cooling circuit supplied with a fluid other than air. The electric compressor and the condenser are housed in a space lying between the vertical plane passing through the axle of the front wheels of the vehicle and a vertical plane passing through the back of the seat backs of the front seats.

Abstract: The invention relates to a device for air-conditioning a cabin (3) of a motor vehicle, comprising an air-conditioning unit (5) installed in front of the dashboard (2), able to be supplied with external air and/or with recycled air taken from the cabin and passing through a recycling pipe (9) arranged in the dashboard (1), and able to deliver a flow of conditioned air to an air delivery pipe (18) connecting said unit (5) to the rear region (19) of the cabin (3), wherein there is provided, in the dashboard (1), a branch pipe (21) connecting said recycling pipe (9) to said delivery pipe (18), said branch pipe (21) dividing the delivery pipe (18) into an upstream portion (18a) situated between the unit (5) and the junction (23) with the branch pipe (21), and into a downstream portion (18b) situated between said junction (23) and the vent and, in said junction (23), a rear recycling shutter (22) able to adopt at least two positions, a first position (P1) in which it closes off the entrance (24) to the branch pipe

Abstract: The invention relates to a device for delivering ventilation air to the front of the cabin (6) of a motor vehicle, this ventilation air being delivered by a delivery box (11) of a heating, ventilation and/or air-conditioning unit, said device comprising at least one ventilation pipe (9) supplying at least one air vent (16a, 16b, 17a, 17b) provided in the dashboard (1), said ventilation pipe (9) being formed in a delivery module (8) which runs transversely under the upper face (2) of the dashboard (1), and splitting downstream in the direction of flow of the ventilation air into at least one “gentle” ventilation pipe (13) which opens onto the, upper face (2) of the dashboard (1) via ventilation orifices (14) of large cross section and into at least one “forced” ventilation pipe (15) which supplies at least one air vent (16a, 16b, 17a, 17b) of small cross section arranged on the dashboard (1) facing the cabin (6).

Abstract: The invention concerns a method for reducing preheating time and for homogenizing temperatures in a passenger compartment, for example of a motor vehicle, wherein the preheating dynamics is improved, which consists in adjusting soft air diffusion air speed in an optimised range of values. In one embodiment, the air circulating device comprises at least a ventilator (8) and at least a soft air diffusion conduit (2), having at its open end an air permeable panel (4) which ensures a soft air diffusion in the passenger compartment. The invention is characterised in that the ventilator, the conduit (2) and the panel (4) are dimensioned so that, at maximum ventilated air flow rate the diffused air speed ranges between 2 and 5 m/s. The device further comprises at least a ventilation conduit (3), said conduit being dimensioned so that, at maximum air flow blown by the ventilator, the air speed at the ventilating nozzles substantially ranges between 2 m/s and 10 m/s.

Abstract: The air-treatment housing of an air-conditioning apparatus includes, in an upper face, an air outlet for demisting and aeration. A diffusion module is arranged between this upper face of the dashboard. This diffusion module features a demisting vent and aeration vents in its upper front region. The aeration vents are directed towards the passenger compartment and extend over the major part of the width of the dashboard.

Abstract: The air-treatment housing of an air-conditioning apparatus includes, in an upper face, an air outlet for demisting and aeration. A diffusion module is arranged between this upper face of the dashboard. This diffusion module features a demisting vent and aeration vents in its upper front region. The aeration vents are directed towards the passenger compartment and extend over the major part of the width of the dashboard.

Abstract: A heating and/or air-conditioning installation has a de-icing outlet with a de-icing opening adjoining a window, an air-diffusion element with a low output per unit surface area, and an air-distributing element. The air-distributing element has at least a first and a second position. In the first position it blocks the air-diffusion element to ensure de-icing of the window. In the second, it partially blocks the de-icing region so that the output per unit surface area via the de-icing region corresponds to diffusion at a low output per unit surface area, such that the de-icing region and the air-diffusion element provide air diffusion at a low output per unit surface area and their air flows mix.

Abstract: A motor vehicle heating and ventilating, and/or air conditioning, installation includes a heating and air distribution unit comprising a casing, the inlet of which is connected to the delivery side of a motorised fan unit. The casing has two outlets, namely a "feet" outlet leading to a lower part of the cabin of the vehicle, and a ventilation outlet, also leading into the cabin. The casing is divided into three ducts. Each of the first and second ducts has an upstream end open at the inlet of the casing, and a downstream end communicating with the feet and ventilation outlets of the casing respectively, under the control of a first flap valve and a second flap valve respectively. The third duct lies between the first and second ducts and has a central portion containing a heat exchanger.

Abstract: In a heating and ventilating apparatus for the cabin of an automotive vehicle with a facility for supplying air at different temperatures to the driver and the front passenger at the level of the fascia and at the level of their feet, means are provided to ensure that air used for other purposes shall, where necessary, be at a uniform temperature. The apparatus comprises a housing having a fresh air inlet duct and at least three outlet ducts for fresh or heated air. The housing has a central bulkhead which divides the housing into two separate halves, each containing a separate regulating means for regulating the temperature delivered from that half of the housing into the cabin of the vehicle. The de-icing outlet duct and/or the central fascia ventilating air outlet duct are provided with a mixer for ensuring that the temperature delivered through the corresponding outlet duct is uniform.

Abstract: An air filter apparatus, in particular for a heating and/or air conditioning installation for a motor vehicle, is of the kind comprising a housing through which an air stream can pass, with at least one filter member pivotally mounted within the housing for movement between a working position and retracted position.The filter member comprises a first end which is pivotally mounted about a first axis extending at right angles to the direction of flow of the air stream, and a second end disposed around a second pivot axis which is parallel to the first pivot axis. In the retracted position, a valve flap member overlies the filter member so as to prevent impurities carried by the filter member from becoming drawn into the air stream.