Abstract:
An air supply system (10) for the driver of a vehicle, the system (10) comprising an air-conditioning unit including an evaporator (20), a condenser (40) and a compressor (30) coupled in close circuit to cycle a refrigerant, a fan being positioned adjacent the evaporator (20) to draw a source of fresh air through the evaporator (20) and into an air conduit arranged to be coupled directly to the driver, the compressor (30) and fan being driven by a low voltage DC electric motor.
Abstract:
An air passage switching device for a vehicle air conditioner includes first and second openings and a rotary door for opening and closing the first and second openings. A rib having a first middle seal surface and a rib having a second middle seal surface are provided in a case to protrude an inner side and to be separated by a predetermined angle in a rotation direction of the rotary door. Further, the rotary door has a door structure angle that is larger than a door operating angle. In addition, the first and second middle seal surfaces and first and second end seal surfaces are provided in the case so that the predetermined angle is a difference between the door structure angle and the door operating angle. Accordingly, arrangement positions of the first and second openings can be readily set without increasing a door operating amount.
Abstract:
A heating and ventilating unit for motor cars of decreased structural volume and increased efficiency provides air temperature regulation by a heat exchanger which may be variably slidably moved into the fresh air stream with its surface acted upon in a defined constant position approximately at right angles to the fresh air stream from a heat-insulated space into the fresh air stream.
Abstract:
Method and arrangement for providing, in a vehicle ventilating and temperature-regulating system, automatic regulation of flaps for adjusting the temperature of and distributing ventilation air to the vehicle interior. In the system, a ventilation unit has at least one regulatable warm air flap for a heat exchanger mounted in the unit and at least one regulatable air distributor flap for distributing ventilation air to outlets opening out in the vehicle interior. The respective regulatory movements of the flaps are synchronized and made infinitely variable by means of servo means controlled by an electronic unit which receives signals from temperature transducers and, after comparison with signals representing actual and desired interior temperatures, transmits output signals to the servo means for regulating the relative settings of the flaps.
Abstract:
An air conditioning device for installation in a vehicle has a moulded casing enclosing a front air intake chamber, an intermediate mixing chamber housing a hot water heater through which a regulatable part of the intake air flows and rear air distribution chamber which distributes conditioned air between upper outlet ducts and a lower, regulated, outlet. Respective control levers controlling flow of hot water through the heater and the flow of air there through are housed in a box located in but effectively sealed from the air distribution chamber.