摘要:
A method for controlling a motor vehicle air conditioning system is described. The motor vehicle air conditioning system comprises a refrigeration circuit including a refrigerant compressor, a condenser, an evaporator and a throttle device arranged upstream of the evaporator. The condenser is associated with a ventilating fan and the evaporator is associated with a blower. The compressor capacity, the condenser capacity and the evaporator capacity are directly or indirectly sensed by sensor means and supplied as electrical variables to an electronic control circuit which logically combines these input signals and generates output signals in dependence on at least two of these capacity values and including further parameters. The control circuit acts on electrically controllable acturators for influencing the compressor capacity, the condenser capacity and/or the evaporator capacity.
摘要:
A condenser that is a block of tubes and ribs with lateral collecting tubes, is provided with a tube-shaped collector in parallel to one of these collecting tubes and forms a unit with it, at least one float being arranged in this tube-shaped collector. The at least one float carries a transmitter element to which a receiver element is assigned which is arranged on the outside on the collector and receives signals through a wall of the collector.
摘要:
An air conditioner arrangement for a vehicle, especially a motor vehicle, having a condenser designed as a block of tubes and ribs with lateral collecting tubes on both sides. One of the collecting tubes forms a structural unit with a collector, which contains a dryer and has a cage-shaped sleeve in which dryer granulate is contained in a bag.
摘要:
The invention relates to a sorber heat exchanger wall comprising a fluid side (2) which is delimited by a fluid wall (4) and is impinged upon by a fluid releasing or absorbing heat, and a sorption side (5) that is provided with a sorption bed (6) with a sorbent (7) which accumulates a sorbate so as to absorb or release heat. In order to create a mechanically stable sorption wall that has good heat conducting and material conveying properties, the sorption bed (6) encompasses a highly heat conducting support structure (10,21) for the sorbent (7), which is connected to the fluid wall (4) in a heat conducting manner, and a hierarchical hollow space system.
摘要:
The invention relates to a heat exchanger, particularly for a heating or air conditioning unit of a motor vehicle, comprising several flat pipes which are arranged parallel to each other and are penetrated by a heat-transmitting medium. An electrically operated heating element (114) which is mounted once the heat exchanger has been soldered is assigned to at least one part of the flat pipes as an additional heating device. Said heating element (114) is fixed to the heat exchanger by means of a holding element (115The inventive heat exchanger is characterized by the fact that each heating element (114) is mounted in front of the corresponding flat pipe and parallel thereto by means of the holding element (125) which also runs parallel to the flat pipe.
摘要:
The invention relates to a heat exchanger, particularly for a heating or air conditioning unit of a motor vehicle, comprising several flat pipes which are arranged parallel to each other and are penetrated by a heat-transmitting medium. An electrically operated heating element (114) which is mounted once the heat exchanger has been soldered is assigned to at least one part of the flat pipes as an additional heating device. Said heating element (114) is fixed to the heat exchanger by means of a holding element (115). The inventive heat exchanger is characterized by the fact that each heating element (114) is mounted in front of the corresponding flat pipe and parallel thereto by means of the holding element (125) which also runs parallel to the flat pipe.
摘要:
In a condenser for an air-conditioning system, in particular for an air-conditioning system of a motor vehicle, there is provision for a collector (15) to be formed from a plurality of series-connected tubes (18) which extend between header tubes (10, 11) and the cross section of which is a multiple of the cross section of the flat tubes (13).
摘要:
In vehicles having drive systems with a highly variable degree of heat generation but in which the total quantity of heat generated is small, the heat given off is inadequate to warm the vehicle properly. The cooling system must nevertheless be designed for the worst-possible operating point, i.e. the greatest amount of heat generated, even if it is generated only briefly. It is the purpose of the present development to make the best possibly exergetic use of the available energy sources while ensuring that the drive components are cooled. The air extracted from the passenger compartment (1) comprises a proportion of exhaust air and one of recirculated air, where the recirculated air is heated in the heat exchanger (9) for the cooling circuit (16) of the drive system and taken to the passenger compartment. The system is particularly suitable for electric vehicles, vehicles with hydrogen and hybrid drives and vehicles developing little heat.
摘要:
The invention relates to a heat pump according to the adsorption principle, comprising a plurality of hollow elements each having an adsorbent, wherein a working medium is enclosed in each of the hollow elements is displaceable between the adsorbent and a phase change area, wherein a heat-transporting fluid in a variable fluid circuit can flow through the hollow elements by means of a valve arrangement. The hollow elements are brought into thermal contact with the fluid in the area of the adsorbent, wherein the flow through the hollow elements changes cyclically with the fluid, wherein at least two of the hollow elements are flown through parallel from the fluid at least in one, in particular each position of the valve arrangement, and at least two of the hollow elements are flown through serially one after the other.
摘要:
Heat pump comprising a number of hollow elements (2) with a first zone (2a), a second zone (2b) and a working medium which can be displaced in a reversible manner between the first and second zones, also comprising a number of plate elements (1) and a number of through-passage regions of a first type (4) arranged between the plate elements (1), further comprising a number of through-passage regions of a second type (5) arranged between the plate elements (1), and additionally comprising at least two distributing devices (7, 8) which are arranged at the ends of the plate elements (1) in each case, are provided for distributing a first fluid through the through-passage regions of the first type (4) and each have a fixed hollow cylinder and a distributor insert (7a, 8a) which can be rotated in the hollow cylinder, the distributor insert (7a, 8a) having partition walls (7b, 8b) which separate off at least four separate chambers (11) in each of the cylinders, and a flow path which comprises at least one through-passage region (4) being defined by way of each of the chambers (11).