Introduced in a system for connecting refrigerant fluid discharge tubes to cylinder caps of hermetic compressors, and corresponding process of performing thereof

A process for connecting a refrigerant fluid discharge tube to a cylinder cap of a hermetic compressor, the process employing at least one connecting device comprising:

• a tubular body provided, at one of its ends, with a perimetral flap co-operative with the discharge tube;
• the cylinder cap comprising at least one channel co-operative with the at least one connecting device;
• and
• at least one layer of sealing material applied on a connecting device surface co-operative with the cylinder cap, and a connecting device surface co-operative with the discharge tube;
• wherein an end of the discharge tube co-operating with the at least one connecting device has a conical form;
• wherein co-operation between the discharge tube and the at least one connecting device is made by interference;
• wherein a surface of the discharge tube co-operating with the at least one connecting device is formed by rolling;
• wherein co-operation between the at least one connecting device and the at least one channel of the cylinder cap is made by interference;
• and
• wherein the at least one connecting device is produced with at least one of the following materials:
• steel, aluminum alloy, or metal alloy containing steel or aluminum;
• the process comprising the following steps:
• rolling the end of the discharge tube;
• coupling the discharge tube to the at least one connecting device by interference to form a pre-assembly;
• positioning the pre-assembly of the discharge tube with the at least one connecting device through the at least one channel of the cylinder cap until the discharge tube reaches a stop existing inside the cylinder cap;
• applying at least one layer of sealing material on the connecting device surface co-operative with the cylinder cap, and the connecting device surface co-operative with the discharge tube;
• and
• applying ultraviolet light to promote curing of the sealing material.