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AssigneeDÜRR SOMAC GmbH
InventorsEric Selbmann, Frank Wieland, Felix Köhler
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The disclosure relates to a method for operating a filling adapter for filling refrigerant R744 into vehicle air conditioning systems as well as to a corresponding adapter. The adapter comprises mechanical clamping elements actuated by a pneumatically or mechanically controlled clamping piston. The clamping elements are clamped b the clamping system onto specifically designed sections of the vehicle air conditioning system for the filling process and are kept in the clamping position during the filling process. The clamping piston comprises at least two separate piston surfaces to be subjected to the pressure of two different pressurization media, one piston surface being effectively connected to the control pressure of the filling adapter and the other piston surface being effectively connected to the filling pressure of the refrigerant.
A method for operating a filling adapter for filling vehicle air conditioning systems with refrigerant R744, wherein the filling adapter comprises mechanical clamping elements which are operated by a pneumatically or mechanically controlled clamping piston, wherein the clamping elements are tightened by the clamping piston for the filling process onto specifically designed portions of the vehicle air conditioning system and held in the clamped position during the filling process, wherein two different pressure media are applied to the clamping piston, wherein initially the control pressure of the filling adapter is applied, followed by the additional application of filling pressure of the refrigerant.
A method for filling an automobile air conditioning system with R744 refrigerant under pressure through a service port of the air conditioning system, the method comprising:
Dependencies are inferred from the claim text.