摘要:
The invention relates to a circuit arrangement (K) comprising a low-temperature circuit (NK) for cooling charge air (13) that is fed to a motor (8) in a motor vehicle equipped with a turbocharger. According to the invention, the charge air (13) is compressed in two stages in a first low-pressure turbocharger (1) and a second high-pressure turbocharger (2). To cool the charge air (13) a first cooler (3) is provided downstream of the low-pressure turbocharger (1) and upstream of the high-pressure turbocharger (2) and a second cooler (4) is provided downstream of the high-pressure turbocharger (2) and upstream of the motor (8). The invention also relates to a method for operating a circuit arrangement (K) of this type.
摘要:
The inventive bursting diaphragm arrangement (B) for components and/or containers subjected to the action of internal pressure, particularly for use in mobile R744 refrigerant circuits in vehicles, comprises a housing (1) with a sealing seat (4), which is surrounded by a collar (3) and which serves to hold a bursting film (5) connected in a fluid-tight manner to the housing (1), and comprises a holding element (6) for holding the bursting film (5) on the sealing seat (4) of the housing (1). The housing (1) is open to the exterior, and the holding element (6) is formed by a disk with a central borehole. According to the invention, the holding element (6) is pressed onto the bursting film (5) by a plastic deformation of the collar (3).
摘要:
The invention relates to an air-conditioning system (1), especially an automotive air-conditioning system, which comprises a multi-part air conduction housing (1) and components disposed therein, such as at least one heater (H: h). The air conduction housing (1), in the area of at least one component, is configured as a replacement part, especially in the form of a part to be pushed in.
摘要:
The invention relates to an air-cooled exhaust gas heat exchanger, in particular exhaust gas cooler (1) for motor vehicles comprising channels (exhaust gas channels) which can be cross-flown by the exhaust gas of an internal combustion engine, between which ribs (4) for air cooling are arranged. According to the invention, the exhaust gas channels are embodied as tubes, in particular as flat tubes (3), which form the ribs (4) of a rib tube block (2) and the tube (3) has tube ends (3a) which are received in the collecting vessels (5) for the exhaust gas.
摘要:
The invention relates to an air mixer vent (5), designed in particular for a motor vehicle air conditioning system (1). Said vent comprises an air deflector element (15), which is located on the air mixer vent (5) and protrudes from a surface of said vent (5), the latter (5) being configured as a partially cylindrical vent or having a curved cross-section in relation to the pivoting axis (6).
摘要:
The invention relates to a crossmember for a motor vehicle. Said crossmember (1) is composed of a base body (2) and a reinforcement (3) and has at least one wall (22) running transversally to the crossmember (1).
摘要:
The invention relates to an exhaust gas heat exchanger for motor vehicles, comprising a cluster of exhaust pipes (10) which are soldered on the front surface thereof to pipe bottoms, and a housing jacket (3, 3b) which is welded to the pipe bottoms (7). According to the invention, the pipe bottoms are welded to the housing jacket (3b) by means of peripheral welds (11).
摘要:
A device for cooling exhaust gas from an internal combustion engine comprises a plurality of flow ducts which are connected to an exhaust gas recirculation system of the internal combustion engine, a heat exchanger for a coolant to flow around the flow ducts in order to dissipate the exhaust gas heat, and an insert 7, 7′ which is arranged within at least one of the flow ducts. The insert 7, 7′ is in thermal contact with the flow duct such that the exhaust gas flows at least partially around the insert. The insert 7, 7′ has profiled fins 8, 8′, with profiles 9, 9′ which are successive in the flow direction of the exhaust gas being arranged so as to be laterally offset relative to one another.
摘要:
The invention relates to a cooler having means for directing a cooling medium, means for directing a medium to be cooled, and an essentially axially symmetrical housing. The means for directing the medium to be cooled is arranged in such a way that the medium to be cooled, in at least one first region, flows in an essentially axial direction, and the medium to be cooled, in at least one second region, flows in a direction having a radial component. The invention also relates to a method of cooling a medium and to various uses of a cooler according to the invention.
摘要:
The invention relates to a metal side-plate (12) for a radiator, particularly a tubular radiator, such as those used in motor vehicles with combustion engines. The aim of the invention is to provide a meal side-plate (12) which is embodied in such a way that stresses arising from various types of thermal expansion of the metal side-plate (12) and tubular radiator (10) can be prevented. The metal side-plates (12) are characterized in that they have a weakened area (13) in which the material of the metal side-plate is weakened in order to compensate heat expansion according to that of the cooling body.