Heat exchange – With vehicle feature – Heating and cooling
Patent
1995-11-22
2000-05-30
Ford, John K.
Heat exchange
With vehicle feature
Heating and cooling
165 41, 165 43, 62244, 62448, 454121, 237 123A, 296205, 296208, F25B 2900, B60H 124
Patent
active
060680466
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a heating/ventilation and/or air conditioning installation for the passenger compartment of a vehicle, in particular of the "multipurpose vehicle" or "minivan" type.
Known installations of this type comprise treatment means suitable for producing treated air--hot or conditioned--and pipes connecting the treatment means to distribution vents distributed within the passenger compartment.
In a known manner, these treatment means comprise an air inlet suitable for being supplied with air from the outside or recycled air, a fan suitable for sending this air through a radiator, and one or more outlets connected to the distribution pipes.
Most often, these treatment means also comprise an evaporator forming part of an air conditioning circuit, this evaporator being positioned between the fan and the heating radiator.
In known installations, these treatment means are disposed either beneath the fascia inside the passenger compartment or partially within the engine compartment.
For vehicles in which the volume of the passenger compartment is large, as is often the case with those of the "multipurpose vehicle" or "minivan" type, additional air treatment means may be provided, positioned at the rear of the vehicle, either in the boot or under the roof.
A principal drawback with these known installations lies in the fact that the treatment means occupy a not inconsiderable space, whether beneath the fascia or in the engine compartment.
Furthermore, these known installations have the drawback that the treatment means are difficult to access, which increases the time and cost of repairs when work is necessary.
The main aims of the invention are to overcome the aforementioned drawbacks.
To this end, it proposes a heating/ventilation and/or air conditioning installation of the type defined in the introduction, in which the treatment means comprise at least one removable box suitable for being installed under the floor of the vehicle and containing an air inlet, a heating radiator, an optional evaporator and at least one air outlet.
As a result, the invention makes it possible to free the space conventionally used by the treatment means, whether beneath the fascia or partially inside the engine compartment, and to make this space available for other functions.
The invention also has the advantage of bringing together all the treatment means in at least one removable box, which can be supplied to the manufacturer ready for use.
As a result, fitting to the vehicle is easy and rapid.
Furthermore, when any work is done, it is easy to remove the box in order to repair it and to refit it, or optionally replace it with another box.
The removable box can be mounted either from under the floor or from the side in the manner of a drawer. In all cases, the box has rapid fixing means for facilitating mounting and removal.
In a preferential embodiment, the installation comprises two removable boxes disposed respectively on the right-hand side and left-hand side of the vehicle and sending treated air respectively into the right-hand part and left-hand part of the passenger compartment.
In this case, the two boxes are advantageously placed in symmetrical positions on each side of the longitudinal axis of the vehicle.
This facilitates the connection of each of the boxes to the air distribution pipes.
Advantageously, the respective air inlets of the two boxes are connected to a common admission pipe suitable for being fed with air from the outside or recycled air.
This common admission pipe can, if necessary, house a filter.
When the air treatment means comprise an evaporator, the latter forms part of a conventional refrigeration circuit also including a compressor, a condenser and a pressure reducer.
Advantageously, this refrigeration circuit is also housed in the box.
In a variant, it is possible for the components of the circuit to be external to the box, rapid connection means then being provided in order to connect the evaporator to the other components of the refrigeration circuit.
In order to facilitate the mo
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Pommier Didier
Salmon Michel
Urset Charles
Ford John K.
Valeo Climatisation
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