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Air-conditioning plant for motor vehicles, especially for buses
| Details |
Inventors: Grupa, Johann;
Assignee: Webasto-Werk W. Baier GmbH & Co. (DE)
Primary Examiner: Tapolcai; William E.
Assistant Examiner:
Attorney, Agent or Firm: Sixbey, Friedman & Leedom
An air-conditioning plant for motor vehicles, which comprises a condenser and an evaporator, is developed and disposed in such a way that it may be integrated, as a pre-assembled construction unit, into the roof frame of a roof construction of a motor vehicle. The condenser contains a large surface condenser block disposed so as to be inclined downwardly toward the front end of the vehicle and lowered partly below the level of the roof. The condenser fans are disposed at the height of the tail end of the vehicle. Below the condenser, evaporator blocks of the evaporator are arranged standing edgewise such that, between the evaporator blocks, a channel-shaped space remains open but which is closed toward the side of the roof by the bottom of the condenser trough. This channel-shaped space runs continuously in the longitudinal direction of the vehicle. As a top roof part, a fresh air part is provided that contains fresh air channels which make possible a fresh air feed-in free of pressure head into the interior space of the vehicle by a connection with the fresh air intake areas of the evaporator. The conditioned air at the outside of the evaporator blocks is conveyed to air channels, with the help of evaporator fans, the channels running in the longitudinal direction of the vehicle. The flow emerging from the evaporator fans is directed in a horizontal direction and may be introduced without deflection into the air channels. |
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DETAILED DESCRIPTION The invention deals generally with an air-conditioning plant for motor vehicles and especially with an air-conditioning plant which is intended for buses.
A typical air-conditioning plant of this type has a condenser and an evaporator which are disposed partitioned, side by side, in trough-like housings.
The condenser has a large-surface condenser block extending transversely to the direction of travel and inclined downwards in the direction of travel and contains condenser fans which carry off the condenser exhaust air to the outside.
The evaporator contains evaporator blocks extending in the direction of travel and disposed at a distance transversely to the direction of travel.
Furthermore, a fresh air intake space is associated with the evaporator part by way of which fresh air is drawn in by means of evaporator fans which also convey the air, after it has passed through the evaporator, as conditioned air into an air channel of the vehicle which extends in the longitudinal direction of the vehicle at the transition are between the roof and lateral surfaces of the motor vehicle.
From the German Offenlegungsschrift 32 24 895, an air-conditioning plant for motor vehicles of the previously mentioned type has been known which is intended especially for buses.
This air-conditioning plant is intended for on-roof mounting and is designed to have a flat configuration.
Despite the provision of a flat configuration, it has turned out, however, that there are applications when the height above the roof, especially in the case of buses, will be limited by regulations in such a way that the known air-conditioning plant cannot be used for on-roof mounting, since it leads to a superstructure height above the roof that is too great.
Furthermore, in the case of the known air-conditioning plant, the condenser and the evaporator are mounted lying one behind the other on the roof in the direction of travel, and trough-shaped housing parts of the condenser part and the evaporator part are attached to the contour of the roof
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