Abstract: Electric heating device comprising an electric radiator (10) for heating the air passing through it, said radiator comprising a casing (12), at least one resistive element mounted in the casing and constituted by at least one zigzag metal strip (22) which is disposed so as to be directly exposed to the air passing through the casing, and a circuit (30) for controlling the electrical supply of the resistive element or elements connected to a power supply. The electric radiator (10) comprises a set of individual heating modules (20) disposed parallel to one another in the casing (12) and so as to be directly exposed to the air passing through the casing, each heating module (20) comprising a pleated or corrugated metal strip (22) and an electronic switch controlled by the control circuit (30) intended to selectively inhibit the electrical supply of the metal strip (22).

Abstract: A device for air-conditioning a motor vehicle has an engine-cooling loop, a heat-pump loop containing a compressor, an evaporator as cold source of the heat pump and a condenser as hot source of the heat pump. The condenser is integrated into the engine-cooling loop upstream of the air heater. An air-conditioning branch has a condenser and an evaporator with an upstream end connected to the heat-pump loop downstream of the compressor, and a downstream end connected to the heat-pump loop upstream of the compressor. Switching means make it possible to make the refrigerant fluid circulate either in the heat-pump loop, or in the heat-pump branch, in such a way as to form a heat-pump loop.

Abstract: A heat exchanger for a heat transfer fluid circuit comprising ducts for the circulation of the heat transfer fluid, which are inserted between an inlet and an outlet, is described. Cavities designed to contain a heat storage fluid adjacent to the cooling fluid circulation ducts and associated with heat-exchanger surfaces, so that heat storage fluid is capable of exchanging heat with the air flow, if the circulation of the heat transfer fluid is stopped, are also described.

Abstract: The invention relates to a keypad (10) for a control panel, in particular for a motor vehicle instrument system, comprising a front (30) provided with openings (32) through which a number of push-buttons (20) are placed, each positioned facing a contactor (14) fixed to a card (12), characterized in that the buttons (20) are linked together at least in groups of two to form a unitary set (22) and are placed with respect to one another on the keypad (10) such that each button (20) can be moved individually and pushing thereof causes solely actuation of the contactor (14) assigned to said button, without any effect on the contactors of the other buttons.

Abstract: The subject of the invention is a hollow reinforcing beam (1) for the cockpit of a vehicle. This beam (1) constitutes a member through which air originating from a heating, ventilation and/or air conditioning system flows, and for this purpose comprises at least one air intake opening (21) and a plurality of outlet openings (23, 24, 26, 27, 29) for discharging the admitted air. This beam (1) is made up of an integral body stretching longitudinally in a constant direction which at its ends comprises windows (8, 9) for the longitudinal introduction of members for the selective distribution of the air admitted into the beam (1), and which is equipped at its ends with tips (12, 13) for reinforcing the beam (1) and fixing it to the cockpit of the vehicle.

Abstract: The invention relates to a ventilation, heating and/or air conditioning equipment for the passenger compartment of a motor vehicle provided with a main thermodynamic loop comprising at least, according to the direction of flow of a refrigerant fluid: a compressor (14), a condenser (16), an expansion device (20), and a main air-cooling evaporator (22). According to the invention, the equipment furthermore comprises a secondary fluid loop for the flow of a heat conductor fluid coupled with the main thermodynamic loop in order to cool the heat conductor fluid when this is desirable.

Abstract: The invention relates to a system for controlling the speed of a motor (1) of an electric fan unit comprising a field-effect transistor (3) that controls the motor (1) using pulse-width modulation, the field-effect transistor (3) being connected to a circuit (5) comprising a voltage source (7) and a resistive element (9) in series, the circuit (5) is connected between the gate (G) of the field-effect transistor (3) and a second source (S2) that is connected to a first source (S1) of the field-effect transistor (3), via an inductor (11) in order to allow a reduction in the slope of the current as the field-effect transistor (3) switches.

Abstract: A heat exchanger for exchange of heat between a first fluid and a second fluid comprises a stack of pockets (1) mutually aligned in a longitudinal direction and having two header boxes (16, 17) that are mutually juxtaposed in a lateral direction. The first fluid is injected into an upstream connecting channel (12) by a longitudinal nozzle (22) passing through a heat exchanger end face (5) remote from the upstream connecting channel, and at least one other connecting channel (14). This longitudinal nozzle has a cross section of oblong general shape, whose greatest dimension is parallel to the greatest dimension of the pockets. The heat exchanger may be produced particularly in the form of an evaporator for an air-conditioning device for the passenger compartment of a vehicle.

Abstract: The invention concerns a device for protecting an electric source adapted to power an electric member comprising a test unit (6) adapted to deliver a signal (8) representing the availability of the electric source (2), to a control unit (10). The unit (10) determines an operating mode of the electric member (4) wherein the power consumption of the electric member is a function of the availability signal (8) received from the test unit (6). The electric source (2) can power directly the electric member (4) and the control unit (10) can act on the electric member itself. The control unit (10) can also be interposed between the electric source (2) and the electric member (4) to modify at least one characteristic of the current powering the electric member.

Abstract: The object of the invention is a junction device between a conduit mounted on a floor for supplying air, in particular coming from a heating, ventilation and/or air conditioning installation, and an aeration conduit mounted on the squab of a seat, mounted so as to move in rotation about an axis A1 fixed to the floor. The junction device comprises rigid members respectively allocated to the supply conduit and to the aeration conduit. These rigid members are mounted so as to move with respect to each other for putting the conduits in air communication with each other, at least in the folded-down position of use of the seat.

Abstract: The invention proposes an air conditioning installation furnished with an injection computer (42), with an air conditioning apparatus and with an electronic control device (401). The installation furthermore comprises measurement facilities making it possible to establish values relating to the temperature of the external air stream at the inlet of the condenser, to the pressure at the outlet of the compressor (123), and to the pressure at the inlet of the compressor (122). The electronic control device (401) implements the solving of a linear equation, relating the mass flow rate of the refrigerant to the values measured by the measurement facilities so as to calculate an estimate of a quantity relating to the refrigerant. On the basis of this quantity, the electronic device can estimate the power absorbed by the compressor (14).

Abstract: The present invention relates to a support (10) for a motor, particularly a motor vehicle heating, ventilation and/or air-conditioning unit blower, the motor having an axis of revolution (xx?) and the support (10) comprising a more or less cylindrical hollow sleeve (20) intended to accept the motor, a fixing housing (30) intended to accept the hollow sleeve (20), and vibration-absorbing means (50), characterized in that said vibration-absorbing means (50) are overmolded onto the fixing housing (30).

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: Temperature control system at the outlet from at least one distribution opening (10, 11) of a transit chamber (30) of a heating and air conditioning device. According to the invention, said system comprises a plurality of air ducts (20, 50) passing through the transit chamber (30) as far as the distribution opening (10, 11). Automobile vehicle ventilation, heating and air conditioning application.

Abstract: A heating/air-conditioning installation for a motor vehicle has a thermal loop which includes a refrigerating compressor, a gas cooler, a pressure-reducing valve, an evaporator, and a heating element. The gas cooler and the heating element are grouped together into a single exchanger including a main module forming a main fluid-carrying heat exchanger.

Abstract: The subject of the invention is a module for conveying and distributing air originating from a thermal unit of a heating, ventilating and/or air conditioning system system for the cockpit of a vehicle. This module comprises a partitioned box structure (3) which delimits a number of ducts allocated respectively to the supply of air to zones of the cockpit. This box structure (3), installed inside a front transverse beam of the cockpit, delimits an overall intake duct (4) which is in communication with a duct (5) supplying air originating from the thermal unit. This overall duct (4) is equipped with at least one main splitter (6) for distributing the admitted air selectively towards main distribution ducts (7, 8) which are in communication via respective outlets with a said zone of the cockpit to which these outlets are assigned.

Abstract: The invention is related to a mechanism for controlling at least one member to be controlled (8, 9, 10, 11), which is housed inside a structural element (1) of a vehicle, for example. This mechanism comprises means for controlling the member (8, 9, 10, 11), which are borne by a support (12, 13) and which are connected to a control member (17). The element (12, 13) is attached to the structural element (1) and consists of at least one plate (14, 15, 16) equipped with centering means (24) and attachment means (25) on the structural element (1), to control the member (8, 9, 10, 11) housed inside the structural element from outside the latter.

Abstract: A casing (1) is dedicated to housing a heat exchanger (3) in a heating, ventilation and/or air conditioning installation, for example of a motor vehicle. The heat exchanger (3) comprises an air inlet face (12), an air outlet face (13), a rear end face (15), a front end face (14), and at least one side face (16, 17) capped with a radiator tank (4, 5). The casing (1) comprises side walls (18, 19) defining at least one housing to receive at least one part of the radiator tank (4, 5).

Abstract: Smart network comprising at least one peripheral (101, 102, . . . , 10n) connected to a node (N1, N2, . . . , Nn) of said network, said node being identified by means of a resistive system (130; 130a, 130b) connected to a common conductor (14, 16, 18) of the smart network. According to the invention, said resistive system comprises a resistive element (130; 130a) integrated with said common conductor, the peripheral being arranged in parallel with said integrated resistive element. Application to air conditioning installations in motor vehicles.

Abstract: The invention is directed to a heating assembly comprising, in combination, a main radiator (1) for fluid flow and an electric radiator. The latter is disposed on one face of the main radiator (1) defining its general plane, and consists of a plurality of independent heating elements (6). Each of these heating elements (6) comprises an elementary electrical heating body (7), having connecting means (31, 31?) for connection to an electrical power source, and a finned element (8). These heating elements (6) are assembled on a connecting structure of the electric radiator on the face of the main radiator (1).