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OwnerHans Hammer, Dirk Schroeder +4inventors
InventorsHans Hammer, Dirk Schroeder, Christian Rebinger, Frank Obrist, Frank Wolf, Martin Graz
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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.
Motor vehicle with an air conditioning system (1), whose ducting (6,12,15) connects a compressor (3), which is attached to the engine (2) of the vehicle with at least one heat exchanger (8,10), which is attached to the vehicle body (7), wherein the ducting system (6,9,12,15), running in the engine compartment (31) of the vehicle, has at least one pipe curvature (37-40), which is determined by the installation geometry in the vehicle space, at least one part of the pipe conduits (6,9,12,15) of the air conditioning system is made of metallic substance and medium for vibration damping is provided to avoid transmission of vibrations from the compressor (3) to the vehicle body (7), characterized in that at least one pipe conduit (6′, 12′, 15′), which is connected on one side to the compressor (3) and to a heat exchanger (8, 10), which is attached to the vehicle body (7) on the other, is made entirely of metallic substance, inclusive of its pipe couplings (42-45), and has an outside diameter of less than 13 mm.
Motor vehicle according to claim 9, charcterized in that the enlargement of cross section of the ducting in a pipe conduit, which is intended for damping the pressure impulses, is provided in the form of muffler like pipe enlargement.
Dependencies are inferred from the claim text.