Patent application number | Description | Published |
20120085114 | REFRIGERANT CIRCUIT OF AN HVAC SYSTEM OF A MOTOR VEHICLE - The invention relates to a refrigerant circuit and a process for operation of the refrigerant circuit of an HVAC system of a vehicle, particularly an electric or hybrid vehicle. The refrigerant circuit includes a primary circuit with a compressor, a heat exchanger for heat transmission between the refrigerant and the environment, a collector, a first expansion member, a heat exchanger for supply of heat from the fresh air to be conditioned of the vehicle interior to the refrigerant and a heat exchanger arranged switched in parallel to the heat exchanger. Further, the refrigerant circuit is provided with a secondary train that extends starting from a tapping point positioned between the compressor and the heat exchanger up to a connection point and is provided with a heat exchanger for heat transmission from the refrigerant to the fresh air to be conditioned for the vehicle interior, and a subsequent control valve. | 04-12-2012 |
20120085512 | Vehicle cooling system - The disclosure relates to a cooling system and a method for operating the cooling system for cooling a battery of a vehicle using a coolant circuit. The cooling circuit includes a pump device, a heat exchanger for transferring heat between a coolant and the battery, a heat exchanger for transferring heat between the coolant and the surroundings, and a heat exchanger for transferring heat between the coolant and a refrigerant circulating in a refrigerant circuit. The refrigerant circuit is designed with a heat exchanger and an associated expansion element. The refrigerant circuit includes two additional expansion elements. The first expansion element is arranged upstream of the heat exchanger and the second expansion element is arranged downstream of the heat exchanger, with regard to the direction of the refrigerant flow. The heat exchangers designed as evaporators on the refrigerant side can be operated with different pressure and temperature levels. | 04-12-2012 |
Patent application number | Description | Published |
20120325433 | HEAT EXCHANGER UNIT, ESPECIALLY FOR AIR CONDITIONING IN MOTOR VEHICLES - A heat exchanger unit that enables a quick interchanging of function, form and size of the different heat exchanger modules. The interchanging may be possible in regard to the sequence of the individual heat exchanger modules. The heat exchanger unit in includes inserts configured such that appropriately configured cassettes can be inserted, and an inner shape of the cassettes is configured so that different heat exchanger modules can be accommodated therein. The cassettes are thus designed specific to the heat exchanger, while the outer shape of all cassettes conforms to the shape of the uniformly configured inserts. | 12-27-2012 |
20130031922 | REFRIGERANT CIRCUIT - The invention includes a refrigerant circuit for a cooling operation and a heat pump operation. The refrigerant circuit has a high pressure area and a low pressure area, including at least one heat source/heat sink, a compressor, an expansion device, at least one thermal interior space module, and an internal heat exchanger. The internal heat exchanger has a high pressure side part and a low pressure side part, wherein the high pressure side part is disposed between the expansion device and the heat source/heat sink. The invention also includes at least one metering device through which the high pressure side part of the internal heat exchanger is operable during the heat pump operation at a medium pressure level intermediate a pressure level in the high pressure area and a pressure level in the low pressure area of the refrigerant circuit. | 02-07-2013 |
20140138049 | VEHICLE WITH AIR CONDITIONER - The invention relates to a vehicle with an air conditioner for heating inlet air flowing into a vehicle interior, the air conditioner including: a heater heat exchanger thermally coupled through a coolant cycle with a drive unit or similar; and a supplemental heat exchanger which is connected to a refrigerant cycle of the air conditioner and which transfers heat to the inlet air in heating mode, wherein the supplemental heat exchanger is configured with at least two rows including a first heat exchanger row and a second heat exchanger row in a refrigerant flow direction, wherein the first heat exchanger row and the second heat exchanger row are arranged in a refrigerant flow direction so that super cooling of a condensed refrigerant is provided in the second heat exchanger row and at least heat extraction of the refrigerant is provided in the first heat exchanger row. | 05-22-2014 |
20150107278 | Device And Method For Icing Prevention Regulation For Heat Pump Evaporators - The invention relates to a device and a method for icing prevention regulation for a heat pump evaporator ( | 04-23-2015 |