摘要:
The aim of the invention is to obviate the need for rubber hoses or other flexible rubber compensation elements, which prevent the transmission of vibrations to the vehicle body. To achieve this, the pipelines of an air conditioning system including their pipe couplings (42-45) are configured entirely of metal with an external diameter, in relation to the compressor, of less than 11 mm on the discharge side and less than 13 mm on the suction side. A damping curvature (35, 36) is also configured in the pipelines (6', 12') that connect the compressor to a heat exchanger, in addition to at least one curvature (37-40) required by the installation geometry of the conduit system. The system is also equipped with a pipeline, designed to restrict the flow of operating fluid, said pipeline being configured as a particularly thin pipe with an internal diameter of capillary-tube type proportions, designed to restrict the flow and an external diameter ranging between 2 and 4 mm.
摘要:
The aim of the invention is to obviate the need for rubber hoses or other flexible rubber compensation elements, which prevent the transmission of vibrations to the vehicle body. To achieve this, the pipelines of an air conditioning system including their pipe couplings (42-45) are configured entirely of metal with an external diameter, in relation to the compressor, of less than 11 mm on the discharge side and less than 13 mm on the suction side. A damping curvature (35, 36) is also configured in the pipelines (6', 12') that connect the compressor to a heat exchanger, in addition to at least one curvature (37-40) required by the installation geometry of the conduit system. The system is also equipped with a pipeline, designed to restrict the flow of operating fluid, said pipeline being configured as a particularly thin pipe with an internal diameter of capillary-tube type proportions, designed to restrict the flow and an external diameter ranging between 2 and 4 mm.
摘要:
The invention relates to a device and a method for icing prevention regulation for a heat pump evaporator (3) in air conditioning systems of vehicles, composed of a subsection (1) of a refrigerant circuit which can be operated both as a heat pump and also as an air-conditioning system. The device comprises the heat pump evaporator (3), an electrical or mechanical refrigerant compressor (4), a cooler fan (9) which is assigned to the heat pump evaporator (3) and which draws ambient air (11) upstream of and through the heat pump evaporator (3) at an adjustable flow speed and which thus permits a permanent flow of ambient air (11) over the heat pump evaporator surface, a first temperature sensor (6) in or on the refrigerant line (5, 5a) upstream of the heat pump evaporator (3) with respect to the heat pump operating direction, and a control and regulating unit (8). The control and regulating unit (8) is connected via signal lines (10, 10a, 10b, 10c, 10e) at least to the first temperature sensor (6), to further sensors, in particular for detecting the ambient air temperature (Tu) and the vehicle speed (VF), to the expansion valve (2), to the cooler fan (9) and to the refrigerant compressor (4) for the direct or indirect regulation of the flow cross section of the expansion valve (2) and the rotational speed of the electric refrigerant compressor (4) or of the regulating valve of the mechanical refrigerant compressor (4) and for the actuation of the cooler fan (9) of the vehicle during heat pump operation.
摘要:
The invention relates to a vehicle having an air conditioning system for heating inlet air (I) flowing into the vehicle interior (2), said system comprising a heater heat exchanger (8), which is thermally coupled via a coolant circuit (13) to a drive assembly or the like, and an additional heat exchanger (7) which is connected into a coolant circuit of the air conditioning system and in heating mode emits heat to the inlet air (I). According to the invention the additional heat exchanger (7) is at least of double-row design having a first heat exchanger row (30) and a second heat exchanger row (31), and in the air flow direction the two heat exchanger rows (30, 31) are configured so that in the first heat exchanger row (31) an undercooling of the condensed coolant takes place and in the second heat exchanger row (30) at least a removal of heat and optionally condensation of the coolant takes place.