Abstract: The invention relates to a fluid coupling (1) with tolerance compensation for the flexible connection of two media-conducting elements. The invention was based on the object of improving a fluid coupling (1) of the described type in such a manner that the use of complicated latching systems for transport can be omitted. This object is achieved in that the fluid coupling (1) has at least one transport securing device (8, 12), by means of which a separation of the components (2, 3) of the fluid coupling (1) from one another prior to installation can be prevented.

Abstract: A plug-in coupling for fluid lines, having a coupling sleeve (1) made of plastic, which has blocking openings (3), wherein the coupling sleeve (1) has, in the region of the blocking openings (3), at least one reinforcement (9) made of a metal material. The reinforcement (9) may have apertures (10) which correspond to the blocking openings (3) and through which a spring blocking element (5) can engage with pawls (7). As a result, it is possible to ensure that, even in the event of high contact pressures between the spring blocking element (5) and the coupling sleeve (1), separation of the blocking openings (3) can be ruled out.

Abstract: A reversibly detachable fluid-line coupling (1), at least having a coupling sleeve (2, 3), a locking element (7) and a coupling plug (8). The invention was based on the object of providing a fluid-line coupling (1) of the type described in the introduction that can be constructed from plastic while avoiding the stated difficulties.

Abstract: Coupling element (1) with tolerance compensation for flexibly connecting two elements for guiding media, having two components (2, 3), which can be connected captively to each other in a fluid-guiding manner, wherein a translational, rotational or cardanically tilting movement of the first component (2) against the second component (3) is possible. The invention therefore addressed the problem of improving a tolerance-compensating coupling element (1) of the kind described at the outset in such a way that materials with high strength but low elasticity demands can be used. This problem is solved by the fact that the captive connection (7, 8) has a slotted snap ring (8) that engages through an opening (6) of the first component (2) and behind a bead (7) of the second component (3), thereby preventing the two components (2, 3) from being completely pulled apart.

Abstract: The invention relates to a fluid coupling (1) with tolerance compensation for the flexible connection of two media-conducting elements. The invention was based on the object of improving a fluid coupling (1) of the described type in such a manner that the use of complicated latching systems for transport can be omitted. This object is achieved in that the fluid coupling (1) has at least one transport securing device (8, 12), by means of which a separation of the components (2, 3) of the fluid coupling (1) from one another prior to installation can be prevented.

Abstract: A fluid line includes a resonator having an inner part and a blow-molded outer part defining an inner surface. The inner and outer parts are fixedly connected. The inner part is an injection-molded part having first and second radial collars spaced axially apart from each other. The inner part defines a radial circumference with a plurality of orifices formed therein. The inner and outer parts are axially one within the other so that there is no throughflow of secondary air between the first and second radial collars and the inner surface of the outer part. The inner and outer parts have a common end whereat they are airtightly connected to each other. The inner part, the radial collars and the inner surface of the outer part conjointly define two resonant chambers operatively connected to fluid in the fluid line via the orifices.