摘要:
The invention relates to a compact vehicle HVAC system including an evaporator unit, a condenser unit, and a component unit, as well as a refrigerant circuit. The evaporator unit and the condenser unit each are provided with air-passed heat exchangers and a fan in a casing. Further circuit components are displaced within the component unit. The casings of the evaporator unit, the condenser unit, and the component unit advantageously establish a connected compact casing arrangement. The heat exchangers are displaced within the compact casing arrangement. The refrigerant circuit is established for a combined refrigeration plant and heat pump operation as well as an afterheating operation, whereby in the afterheating operational mode the heating power of the afterheater established as condenser/gas cooler and the cooling power of the evaporator are controllable independently of each other.
摘要:
A modular vehicle air-conditioning unit for heating and cooling air includes a housing having at least one blower and a plurality of flaps for setting air flow paths and a refrigerant circuit in fluid communication with the housing. The refrigerant circuit includes a condenser, an evaporator, a compressor, and an expansion device. An evaporator air flow path through the evaporator and a condenser air flow path through the condenser are formed in the housing. At least one of the evaporator air flow path and the condenser air flow path receives air from at least one of an environment, a passenger compartment of a vehicle, and any mixture of thereof.
摘要:
A modular vehicle air-conditioning unit for heating and cooling air includes a housing having at least one blower and a plurality of flaps for setting air flow paths and a refrigerant circuit in fluid communication with the housing. The refrigerant circuit includes a condenser, an evaporator, a compressor, and an expansion device. An evaporator air flow path through the evaporator and a condenser air flow path through the condenser are formed in the housing. At least one of the evaporator air flow path and the condenser air flow path receives air from at least one of an environment, a passenger compartment of a vehicle, and any mixture of thereof.
摘要:
A method for operating an HVAC system includes the steps of adjusting a heating temperature of a heat exchanger disposed in a first flow passage, directing a first partial air mass flow through the first flow passage, directing a second partial air mass flow through a second flow passage, and directing the first partial air mass flow and the second partial air mass flow downstream of the first flow passage and the second flow passage, wherein the heating temperature of the heat exchanger required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is set as a maximum heating temperature for the heat exchanger, and wherein only an amount of energy required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is added to the HVAC system.
摘要:
A method for operating an HVAC system includes the steps of adjusting a heating temperature of a heat exchanger disposed in a first flow passage, directing a first partial air mass flow through the first flow passage, directing a second partial air mass flow through a second flow passage, and directing the first partial air mass flow and the second partial air mass flow downstream of the first flow passage and the second flow passage, wherein the heating temperature of the heat exchanger required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is set as a maximum heating temperature for the heat exchanger, and wherein only an amount of energy required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is added to the HVAC system.
摘要:
The invention relates to an HVAC device for a vehicle including an inlet casing, an air distribution casing, and a blower located in a blower casing for drawing air through the inlet casing and delivering the air into the air distribution casing. The device further includes an evaporator in the air distribution casing and a drainage system below the evaporator for draining off liquid condensed out of the air at the surface of the evaporator into the environment of the HVAC device. The inlet casing is positioned such that liquid penetrating the inlet casing accumulates in a lower area of the inlet casing. Between the lower area of the inlet casing and the drainage system of the liquid condensed out at the evaporator, a hydraulic connection is configured such that the liquid is drainable from the inlet easing past the blower casing and evaporator into the drainage system.
摘要:
A modular system for a 1-to-4 zone climate control system for vehicles, which is provided with at least one housing and several air tempering and air distribution devices including a fan, optionally a filter, an evaporator, a heater and several doors arranged at a partition that is placed orthogonal to the evaporator and provided to divide the total volume flow into two partial volume flows for the left and right vehicle sides. In the first configuration the partition is provided with several blind fittings for the closing of the flow paths associated with air outlets and air channels of a second configuration. In the second configuration, the blind fittings are replaced with additional doors enabling the use of the air outlets and air channels of additional zones.
摘要:
The invention relates to a load-carrying component that makes it possible to support a vehicle cross-member or module carrier on the floor region of the body of a motor vehicle. The load-carrying component serves to attach an air conditioning unit and is connected to as least one casing part of the air conditioning unit such that the load-carrying component and the casing create at least one channel through which conditioned air flows into the passenger compartment of the vehicle.
摘要:
A catadioptric projection objective for microlithography has at least one curved mirror that is deformable and adjusting elements that can deform the deformable mirror. The adjusting elements are matched to given image errors and their correction. The invention is suitable for astigmatism, fourfold wavefront-deformations due to lens heating, compaction, and the like.
摘要:
The present invention provides a transformed yeast strain containing a DNA sequence transcriptionally linked to a promoter functional in such yeast cells, which when expressed in a suitable host cell, encodes at least one polypeptide having riboflavin biosynthetic activity. Using such transformants, improved levels of riboflavin production are achieved. Processes of producing riboflavin from such transformants are also provided.