Abstract: A method and a device for producing strip wound tube products are disclosed. According to the method, a winding machine winds a strip to produce a strip wound tube and a finishing machine cuts off pieces of desired length from the strip wound tube and connects strip layers in the end sections of the strip wound tube product by way of a joining operation. The finishing machine has a mobile operating head and/or a force decoupling unit.

Abstract: The invention relates to line elements (600) consisting of a multi-layer inner element (IE) and an outer element (AE), wherein the inner element (IE) and the outer element (AE) are in contact with each other at points, at lines, over part of the surfaces thereof, or over the full surfaces thereof. Furthermore, a frictional contact protection means extending over the component length is provided, or a frictional layer (121) is provided in the contact region of the inner element (IE) and the outer element (AE). The wear of the outer element (AE) caused by friction can thereby be minimized.

Abstract: The invention relates to line elements (600) consisting of a multi-layer inner element (IE) and an outer element (AE), wherein the inner element (IE) and the outer element (AE) are in contact with each other at points, at lines, over part of the surfaces thereof, or over the full surfaces thereof. Furthermore, a frictional contact protection means extending over the component length is provided, or a frictional layer (121) is provided in the contact region of the inner element (IE) and the outer element (AE). The wear of the outer element (AE) caused by friction can thereby be minimized.

Abstract: An apparatus and a method for producing strip wound tube products are disclosed. The apparatus includes a winding machine for winding a strip to a strip wound tube and a finishing machine for cutting off pieces of desired length from the strip wound tube and for connecting strip layers in the end sections of the strip wound tube product by way of an joining operation, the finishing machine having a mobile operating head and/or a force decoupling unit.

Abstract: A profiled metal strip for a diaphragm bellows is made from a strip material having at least one border which is subjected to reverse bending. Such a metal strip is wound to produce a diaphragm bellows, with abutting borders of neighboring turns being connected with one another by a material joint, such as a welding seam.

Abstract: A stripwound hose expandable from a compressed state to a stretched state includes at least two spiral-wound strips having at least three telescoping portions in a direction of a longitudinal axis. The telescoping portions are arranged in axially overlapping relation, when the stripwound hose assumes the compressed state; and extend in axial side-by-side relation, when the stripwound hose assumes the stretched state. The telescoping portions are hooked to one another when being axially stretched.

Abstract: A decoupling element for a conduit includes an interior hose made of metal and a corrugated exterior hose surrounding the interior hose, with a hollow-cylindrical gap formed between the corrugated exterior hose and the interior hose. At least one damping element is arranged in the gap, with the damping element(s) constructed of a woven fabric made of a high-temperature-resistant material and having an outside surface with at least one bulge, wherein the bulge positively engages with a corrugation of the exterior hose. The exterior hose may be a membrane bellows. The woven fabric may be a metallic material. The at least one damping element covers, along the rotation axis, preferably a proportional length of at least 20% of the hollow-cylindrical gap and has preferably a static stiffness in the radial direction of less than 100 N/mm.

Abstract: A profiled metal strip for a diaphragm bellows is made from a strip material having at least one border which is subjected to reverse bending. Such a metal strip is wound to produce a diaphragm bellows, with abutting borders of neighboring turns being connected with one another by a material joint, such as a welding seam.

Abstract: A diaphragm bellows includes a spiral-wound, pre-profiled metal strip having neighboring turns which are connected by a continuous welding seam in an area of an outer diameter or inner diameter of the metal strip. Neighboring flanks of the metal strip enter a region of the welding seam at an angle of less than 60°.

Abstract: A stripwound hose expandable from a compressed state to a stretched state includes at least two spiral-wound strips having at least three telescoping portions in a direction of a longitudinal axis. The telescoping portions are arranged in axially overlapping relation, when the stripwound hose assumes the compressed state; and extend in axial side-by-side relation, when the stripwound hose assumes the stretched state. The telescoping portions are hooked to one another when being axially stretched.

Abstract: A decoupling element for a conduit includes an interior hose made of metal and a corrugated exterior hose surrounding the interior hose, with a hollow-cylindrical gap formed between the corrugated exterior hose and the interior hose. At least one damping element is arranged in the gap, with the damping element(s) constructed of a woven fabric made of a high-temperature-resistant material and having an outside surface with at least one bulge, wherein the bulge positively engages with a corrugation of the exterior hose. The exterior hose may be a membrane bellows. The woven fabric may be a metallic material. The at least one damping element covers, along the rotation axis, preferably a proportional length of at least 20% of the hollow-cylindrical gap and has preferably a static stiffness in the radial direction of less than 100 N/mm.

Abstract: A tube is made of profiled metal strip which includes an end leg extending in parallel relationship to a tube axis, an inner leg extending in parallel relationship to the tube axis at a first distance, and an outer leg extending in parallel relationship to the tube axis at a second distance which is greater than the first distance. The inner leg is connected with the outer leg by a transition A double-folded loop hook extends radially for connecting the end leg with one member from the group consisting of the inner leg and the outer leg, and an end hook extends radially and is connected to the other member of this group.

Abstract: For connection of pipelines which are subject to vibration, for example pipelines in vehicle exhaust systems, a liquid-tight decoupling element is used which includes a, e.g. multi-layer wound, metal hose and a tube accommodated in coaxial relationship inside or outside of the metal hose. A first axial fitting firmly secures one end of the tube. The tube is sized to protrude into a second axial fitting, regardless whether the metal hose is completely compressed or completely stretched, to allow movement of the tube in axial and torsional directions in relation to the second axial fitting.

Abstract: A hose connector, in particular for exhaust pipes of motor vehicles includes a flexible line element, for example a metal bellows which is supported at one end face in the support member of an attachment carrier with torsional degree of freedom. A tension element is provided by which the line element can be maintained under pretension against the support member of the attachment carrier.

Abstract: For connection of exhaust system pipe work, which is subject to vibration, a typical example of an application being in vehicle exhaust systems, a gas-tight decoupling element produced from stripwound hoses is used, which consists of two coaxially arranged, multi-layer stripwound metal hoses and axial edge elements. These elements form an annular cavity between the two stripwound hoses with a suitable pneumatic connection which is pressurized in the operating condition using ambient air or cleaned exhaust gas, the pressure being as high or higher than the dynamic pressure which is built up in the inside cylindrical exhaust system cavity as a result of exhaust gas flow.

Abstract: A diaphragm bellows includes a spiral-wound, pre-profiled metal strip having neighboring turns which are connected by a continuous welding seam in an area of an outer diameter or inner diameter of the metal strip. Neighboring flanks of the metal strip enter a region of the welding seam at an angle of less than 60°.

Abstract: A tube is made of profiled metal strip which includes an end leg extending in parallel relationship to a tube axis, an inner leg extending in parallel relationship to the tube axis at a first distance, and an outer leg extending in parallel relationship to the tube axis at a second distance which is greater than the first distance. The inner leg is connected with the outer leg by a transition. A double-folded loop hook extends radially for connecting the end leg with one member from the group consisting of the inner leg and the outer leg, and an end hook extends radially and is connected to the other member of this group.

Abstract: The invention relates to a metal tube arrangement (1) for exhaust pipes of motor vehicles, which typically includes an inner tube (10) with hook or interlock connection as well as a bellows-like an outer tube (20). The inner tube (10) and the outer tube (20) are hereby connected to one another at regular distances along their extension. In particular, they can be coupled to one another via a helically revolving roll seam weld (30). The outer tube (20) is preferably made of two layers from a wound metal strip (21).

Abstract: For connection of pipelines which are subject to vibration, for example pipelines in vehicle exhaust systems, a liquid-tight decoupling element is used which includes a, e.g. multi-layer wound, metal hose and a tube accommodated in coaxial relationship inside or outside of the metal hose. A first axial fitting firmly secures one end of the tube. The tube is sized to protrude into a second axial fitting, regardless whether the metal hose is completely compressed or completely stretched, to allow movement of the tube in axial and torsional directions in relation to the second axial fitting.

Abstract: For connection of exhaust system pipe work, which is subject to vibration, a typical example of an application being in vehicle exhaust systems, a gas-tight decoupling element produced from stripwound hoses is used, which consists of two coaxially arranged, multi-layer stripwound metal hoses and axial edge elements. These elements form an annular cavity between the two stripwound hoses with a suitable pneumatic connection which is pressurized in the operating condition using ambient air or cleaned exhaust gas, the pressure being as high or higher than the dynamic pressure which is built up in the inside cylindrical exhaust system cavity as a result of exhaust gas flow.