A fitting assembly comprises a male coupling having a male thread and an aperture defining an inner circumferential surface of the male coupling. The inner circumferential surface includes a plurality of spaced apart grooves. A tail piece is at least partially received in the aperture of the male coupling. A hose is received and compressed in a space formed between the inner circumferential surface of the male coupling and an outer circumferential surface of the tail piece. The hose is deformed into the plurality of the spaced apart grooves formed in the inner circumferential surface of the male coupling to form an interference fit therebetween.

A fitting assembly comprises a male coupling having a male thread and an aperture defining an inner circumferential surface of the male coupling. The inner circumferential surface includes a plurality of spaced apart grooves. A tail piece is at least partially received in the aperture of the male coupling. A hose is received and compressed in a space formed between the inner circumferential surface of the male coupling and an outer circumferential surface of the tail piece. The hose is deformed into the plurality of the spaced apart grooves formed in the inner circumferential surface of the male coupling to form an interference fit therebetween.

The invention relates to a plug assembly (1), in particular for use in a vehicle, comprising a tube (3), a sealing element (5) and a plug connector (4), which comprises a connector body (6), wherein the connector body (6) has an annulus (22) located between a first casing section (12) and a second casing section (15) of the plug connector (4), wherein a connection section (33) of the tube (3) is introduced into the annulus (22) of the connector body (6) and the sealing element (5) is arranged between the first casing section (12) and the connection section (33) of the tube (3). The first casing section (12) of the connector body (6) is deformed in such a way that an interlocking connection is established between a shaping region (56) of the first casing section (12) of the connector body (6) and the tube (3), wherein the sealing element (5) protrudes at least partially into the shaping region (56) of the first casing section (12), such that the sealing element (5) is clamped at least sectionally between the first casing section (12) and the tube (3).

The invention relates to a method for connecting a connection section (33) of a hose (3) with a plug-in connector (4). The plug-in connector (4) comprises a connector body (6), which connector body (6) has a ring space (22). In a first method step, the connection section (33) is pushed into the ring space (22) of the plug-in connector (4) of the hose (3) from the hose accommodation side (25) of the connector body (6), and positioned there; in a second method step, a pressing tool (50) deforms the first mantle section (12) of the connector body (6). The second mantle section (15) has a narrowing (39) at a front edge (38) of the hose accommodation side (25), whereby it is ensured that the connection section (33) of the hose (3) is freely deformed in the direction of the second mantle section (15) during the pressing process, at least in the region of the ring space (22) that is at a distance from the front edge (38), before the connection section (33) of the hose (3) comes to lie against the second mantle section (15).

The invention relates to a method for connecting a connection section (33) of a hose (3) with a plug-in connector (4). The plug-in connector (4) comprises a connector body (6), which connector body (6) has a ring space (22). In a first method step, the connection section (33) is pushed into the ring space (22) of the plug-in connector (4) of the hose (3) from the hose accommodation side (25) of the connector body (6), and positioned there; in a second method step, a pressing tool (50) deforms the first mantle section (12) of the connector body (6). The second mantle section (15) has a narrowing (39) at a front edge (38) of the hose accommodation side (25), whereby it is ensured that the connection section (33) of the hose (3) is freely deformed in the direction of the second mantle section (15) during the pressing process, at least in the region of the ring space (22) that is at a distance from the front edge (38), before the connection section (33) of the hose (3) comes to lie against the second mantle section (15).

A fluid connector includes a body that has a first end and a second end. The first end defines a first opening that has a first diameter and the second end defines a second opening that has a second diameter different from the first diameter. The body has an inner surface defining a channel that extends from the first opening to the second opening. The inner surface smoothly extending from the first end to the second end. The first connector configured to prevent foaming of media flowed therethrough as a flow diameter of the media transition from the first diameter to the second diameter.

A fluid connector includes a body that has a first end and a second end. The first end defines a first opening that has a first diameter and the second end defines a second opening that has a second diameter different from the first diameter. The body has an inner surface defining a channel that extends from the first opening to the second opening. The inner surface smoothly extending from the first end to the second end. The first connector configured to prevent foaming of media flowed therethrough as a flow diameter of the media transition from the first diameter to the second diameter.

A method for connecting a hose with a tubular coupling with a pressure sleeve. The pressure sleeve is crimped at least at two sites separate from one another in the axial direction such that at least two crimp bands extending in the circumferential direction are developed, wherein each crimp band completely caps at least one peripheral groove that is developed on the inner surface of the pressure sleeve. Also disclosed is a method for connecting a hose with a tubular coupling with a pressure sleeve that is crimped at least at three sites separate from one another in the axial direction such that at least three crimp bands extending in the circumferential direction are developed, wherein at least one crimp band completely caps at least one peripheral groove that is developed on the inner surface of the pressure sleeve. Tubular couplings, pressure sleeves and combinations are also provided.

A method for connecting a hose with a tubular coupling with a pressure sleeve. The pressure sleeve is crimped at least at two sites separate from one another in the axial direction such that at least two crimp bands extending in the circumferential direction are developed, wherein each crimp band completely caps at least one peripheral groove that is developed on the inner surface of the pressure sleeve. Also disclosed is a method for connecting a hose with a tubular coupling with a pressure sleeve that is crimped at least at three sites separate from one another in the axial direction such that at least three crimp bands extending in the circumferential direction are developed, wherein at least one crimp band completely caps at least one peripheral groove that is developed on the inner surface of the pressure sleeve. Tubular couplings, pressure sleeves and combinations are also provided.

This disclosure relates to hose connector arranged for joining flexible hoses comprised of a tubular pipe body with at least one insertion portions made of an SMA or other shape memory material that has a memorized shape. The insertion portion is located on at least on one end of the tubular pipe body and has an outer diameter smaller than an interior diameter of the flexible hose in a martensite state. The insertion portion is inserted into the interior diameter of the flexible hose and the memorized shape is recovered with the application of heat, wherein the outer diameter of the insertion portion becomes larger than the outer diameter of the flexible hose sealing the outer diameter of the insertion portion against the interior diameter of the flexible hose.