The invention relates to a telescopic pneumatic spring bellows (100) having an outer metal corrugated hose (111) and an inner metal corrugated hose (112), which are coupled by a connecting sleeve (120). In order to stabilise the movement, a guide element (161, 162) is provided which limits deviations of the movement of the inner and/or outer metal corrugated hose (111, 112) from the axial direction (X). The guide element can, for example, comprise spacer elements (161, 162) which are arranged between the connecting sleeve (120) on the one hand and the outer or inner metal corrugated hose on the other hand.
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
2.
JOINING CONNECTION BETWEEN A TUBULAR STRIPWOUND HOSE AND A PIPING SYSTEM
The invention relates to a connector (110) for connecting a pipe (R) to a metal hose (WS) having external grooves, the connector having a first cylindrical portion (111) for arrangement on the pipe (R) and a second cylindrical portion (113) with tabs (114) for the form-fitting engagement in an external groove of the metal hose (WS). Between the pipe (R) and the stripwound hose (WS) an insulation (IS) is preferably arranged.
F16L 59/02 - Shape or form of insulating materials, with or without coverings integral with the insulating materials
F16L 59/12 - Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating materialArrangements specially adapted for supporting insulated bodies
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
F16L 59/16 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like
The invention relates to a line element (100) having an inner element (IE), an outer element (AE) surrounding the inner element, and a sliding layer (131, 132) in the form of an anti-friction lacquer, which is arranged in the contact region on the inner element (IE) and/or on the outer element (AE).
F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
F16L 27/11 - Adjustable jointsJoints allowing movement comprising a flexible connection only the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
F16L 51/02 - Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
A line element for an exhaust pipe includes an inner hose, and an outer hose which is disposed in surrounding relation to the inner hose such as to form an intermediate space. At least one of the inner and outer hoses is formed from a wound profiled band. The band includes a radial projection which projects into the intermediate space and forms a spacer between the inner hose and the outer hose.
A line element includes an inner element, an outer element surrounding the inner element, and a damping element arranged between the inner element and the outer element. The damping element can be made, for example, of knitted wire fabric or a stripwound hose. The damping element can be made in particular of a more easily wearing material than the outer element and/or the inner element, for example of copper.
F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
F16L 27/11 - Adjustable jointsJoints allowing movement comprising a flexible connection only the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
6.
Line element having an inner element and an outer element
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.
F16L 27/111 - Adjustable jointsJoints allowing movement comprising a flexible connection only the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced
F16L 51/02 - Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F16L 11/15 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
F16L 27/11 - Adjustable jointsJoints allowing movement comprising a flexible connection only the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
F16L 55/04 - Devices damping pulsations or vibrations in fluids
B32B 3/14 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a face layer formed of separate pieces of material
B32B 3/18 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
B21C 37/12 - Making tubes or metal hoses with helically arranged seams
06 - Common metals and ores; objects made of metal
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Building and construction materials and elements of metal; Pipes and tubes of metal; Common metals and their alloys; Metal hardware; Small items of metal hardware. Parts and fittings for vehicles. Science and technology services; Research; Development of hollow bodies for conducting of gases for vehicles and of fittings for metal hoses and valves for vehicle tyres for vehicles; Development of other parts and fittings for vehicles, other than parts for agricultural vehicles and tractors.
8.
Diaphragm bellows produced from profiled metal strip
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.
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.
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°.
