Abstract

The invention relates to a metal bellows (10), comprising a bellows wall (16), which extends around a longitudinal axis (12) and encloses a bellows interior (14), the bellows wall (16) having inner folds (18) and outer folds (20), which are connected to each other by means of wall flanks (22). Said metal bellows is designed and developed in such a way, with a view to the economical production of a sufficiently durable and deformable metal bellows, that the inner folds (18) and/or the outer folds (20) are formed in such a way that said folds each enclose an annular space (24, 25). The invention further relates to a method for producing a metal bellows (10).

IPC Classes  ?

• F16J 3/04 - Bellows
• B21D 15/10 - Corrugating tubes transversely, e.g. helically by applying fluid pressure

Abstract

A multiple component hot gas flowing conduit has an elongated, convoluted bellows, an interlock liner, frequency dampers and elastic spacers engaging the dampers and biasing the dampers into respective bellows convolution with no contact of bellows and liner for all operating states of the conduit. Assembly pretension of the interlock liner preferably flattens out the elastic spacers permitting assembly of the liner into the bellows and upon relaxation of the liner, the spacers extend radially outwardly to engage and bias the dampers into the bellows. The bellows is convoluted throughout, or may have convoluted ends with an integral smooth-wall tube therebetween. Components are isolated from abrasion against one another.

IPC Classes  ?

• 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 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 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• F16L 55/033 - Noise absorbers
• 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

Abstract

A multiple component hot gas flowing conduit (10) has an elongated, convoluted bellows (11), an interlock liner (12), frequency dampers (13) and elastic spacers (14) engaging the dampers (13) and biasing the dampers (13) into respective bellows convolution with no contact of bellows (11) and liner (12) for all operating states of the conduit (10). Assembly pretension of the interlock liner (12) preferably flattens out the elastic spacers (14) permitting assembly of the liner (12) into the bellows (11) and upon relaxation of the liner (12), the spacers (14) extend radially outwardly to engage and bias the dampers (13) into the bellows (11). The bellows (11) is convoluted throughout, or may have convoluted ends with an integral smooth-wall tube therebetween. Components are isolated from abrasion against one another.

IPC Classes  ?

• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• 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

Abstract

The invention relates to a device (2) for producing a flexible coiled tube (10) which can be flexibly elongated to a limited degree and which is made of a continuously supplied strip of a flat metal material, comprising a roll-bending and winding unit (4) to which the strip is supplied and where the strip is brought to an approximately S-shaped or Z-shaped form when viewed transversely to the strip longitudinal direction and wound in a helical manner, thereby forming an undercut that acts in an axial direction (6), wherein a coiled tube (10) is produced which can be moved out of the roll-bending and winding unit (4). The device also comprises a joining and separating unit (12) with a joining and separating station (15) which can be moved in a manner approximately corresponding to the advancing speed and where the coiled tube (10) is cut to length into longitudinal sections (38) of a specified length, and flat material regions which come to rest one over the other at opposite longitudinal end regions (40) of the longitudinal sections (38) are joined in a bonded manner. The device is characterized in that a clamping unit (16) is provided which rotationally fixes the coiled tube (10) continuously being moved out of the roll-bending and winding unit (4) and in this state can be moved away from the roll-bending and winding unit (4) in a rotationally drivable manner approximately at the same rotational speed as the coiled tube (10) moving out of the roll-bending and winding unit and at approximately the same advancing speed as the coiled tube so that the coiled tube is driven in a defined rotating and advancing manner in the region of the joining and separating unit (12), and immediately after running against an end stop (20) in the joining and separating unit (12), a defined length of the coiled tube (10) can be obtained without torsion and clearance between the end stop (20) and the joining and separating station (15).

IPC Classes  ?

• B21C 37/12 - Making tubes or metal hoses with helically arranged seams

Abstract

The invention relates to a profiled clamp (1) for connecting components such as pipes (18), comprising a clamp body (4) consisting of at least two segments (6), which are formed in the shape of a partial ring, and comprising a clamping means (5). The segments (6) have a center web (8) and, on both sides thereof, a leg (9) directed radially inward, each leg having an integrally formed groove-shaped end segment (10) pointing away from the web (8) in the axial direction. Furthermore, the clamping means (5) lies in the groove-shaped end segments (10) at least in some segments.

IPC Classes  ?

• F16L 23/06 - Flanged joints the flanges being connected by members tensioned in the radial plane connected by toggle-action levers
• F16L 23/08 - Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut

Abstract

A flexible coupling (10) used in coupling conduits for hot exhaust gas comprises a flexible bellow (12), a gas flow controlling element (18; 19; 21; 23) at a coupling entry end (10a), and a discharge end (10b). Gas flow within the coupling (10) is concentrated and directed toward a coupling discharge end (10b), away from the bellows (12). Any bellows flexible liner is eliminated. Gas flow in the coupling (10) between the flow controlling element (18; 19; 21; 23) and the discharge end (10b) of the coupling (10) is at least partially unconfined. Heat transfer to the bellows (12) from the gas flow (GF) is diminished as compared to any other level of heat transfer if the hot gas flow engaged the bellows (12) directly without the gas flow control provided herein.

IPC Classes  ?

• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• 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

Abstract

Damping rings (25) of suitable disclosed material are disposed exteriorly and between spaced apart convolutions (12, 13, 14, 15; 31, 32) of a bellows (21; 28) of a flexible coupling (10; 30). One, two or more damping rings (25) are oriented in a coupling (10; 30) between bellows convolutions (12, 13, 14, 15; 31, 32) and the convolutions (12, 13, 14, 15; 31, 32) adjacent a damping ring (25) extend radially outward of an outer periphery (25a) of the ring (25). Optional outer braids (40) are held radially outward of the damping rings (25).

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• 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 51/02 - Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
• F16L 55/04 - Devices damping pulsations or vibrations in fluids

Abstract

A decoupler (10) includes a short bellows (13) of ten or fewer convolutions (24), an internal liner (14) spaced from the bellows (13) internally and a cover (15) spaced radially outward from the bellows (13) providing an air gap (28, 30) both internally and externally of the bellows (13). The liner (14) has a free-standing downstream end (25) proximate a damper (11) which is captured by a cover (15), inner damper ring (12) and slide ring (16). Two decouplers are mounted in series to accommodate angular, axial and lateral displacement when operably connecting two end pipes (40, 42) and one central pipe (41).

IPC Classes  ?

• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

A decoupler includes a short bellows of ten or fewer convolutions, an internal liner spaced from the bellows internally and a cover spaced radially outward from the bellows providing an air gap both internally and externally of the bellows. The liner has a free-standing downstream end proximate a damper which is captured by a cover, inner damper ring and slide ring. Two decouplers are mounted in series to accommodate angular, axial and lateral displacement when operably connecting two end pipes and one central pipe.

IPC Classes  ?

• F16L 23/12 - Flanged joints specially adapted for particular pipes
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• 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
• F02M 35/10 - Air intakesInduction systems
• F16L 51/02 - Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube

Abstract

A free-floating load ring for assembly into a flexible coupling having a convoluted bellows and a surrounding mesh sleeve, the ring captured by the sleeve at an end of the coupling and spacing the sleeve from the bellows when forces are applied to the coupling. Various rings can be added to existing non-load supporting or flexible couplings having no previous rings. The load ring is retained in place by engagement of coupling components with the ring without physical connection of the ring to any coupling component.

IPC Classes  ?

• F16L 51/02 - Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• 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 35/00 - Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

A free-floating load ring (50; 60; 70; 80; 90;100; 110; 120; 130; 140; 150; 160) for assembly into a flexible coupling (10; 58; 68; 78; 88; 98; 108; 180) having a convoluted bellows (20) and a surrounding mesh sleeve (15), said ring (50; 60; 70; 80; 90;100; 110; 120; 130; 140; 150; 160) captured by said sleeve (15) at an end of said coupling (10; 58; 68; 78; 88; 98; 108; 180) and spacing said sleeve (15) from said bellows (20) when forces are applied to said coupling (10; 58; 68; 78; 88; 98; 108; 180). Various ring alternate structures are disclosed, and can be added to existing non-load supporting or flexible couplings having no previous rings. The load ring (50; 60; 70; 80; 90;100; 110; 120; 130; 140; 150; 160) is retained in place by engagement of coupling components with the ring (50; 60; 70; 80; 90;100; 110; 120; 130; 140; 150; 160) without physical connection of the ring (50; 60; 70; 80; 90;100; 110; 120; 130; 140; 150; 160) to any coupling component.

IPC Classes  ?

• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• 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

Abstract

A flexible coupling includes a liner, a bellow, and a liner sleeve preferably defined by a compressed woven mesh strip spirally wound around the liner between the bellow and liner and moveable longitudinally with respect to the bellow and liner when the coupling expands linearly. An alternate sleeve in the form of a cylinder is disposed about the liner, under the bellow and is formed of a woven non-compressed mesh.

IPC Classes  ?

• 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 21/00 - Joints with sleeve or socket
• 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 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 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only

Abstract

A flexible coupling (10) includes a liner (16), a bellow (12), and a liner sleeve (18) preferably defined by a compressed woven mesh strip (22) spirally wound around the liner (16) between bellow (12) and liner (16) and moveable longitudinally with respect to the bellow (12) and liner (16) when the coupling (10) expands linearly. An alternate sleeve in the form of a cylinder is disposed about the liner, under the bellow and is formed of a woven non-compressed mesh.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• 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

Goods & Services

Flexible pipes and tubes and pipes and tubes of metal, particularly flexible tubes and pipes for gas, flexible tubes and pipes for solar technology and heating technology, flexible tubes and pipes and tubes and pipes for the automobile industry, flexible tubes and pipes and tubes and pipes for the aviation industry; components of flexible metal tubes and pipes, compensators, particularly for compensating against fluctuations caused by temperature and by vibrations entering into ducts; metal bellows, particularly for the building of apparatus and valves as well as for vacuum technology and medical technology; common metals and alloys thereof; building materials of metal; transportable buildings of metal; cables and wires of common (non-electric); goods of common metal not included in other classes; metal containers, particularly for gases and liquids; diaphragm bellows; vibration absorbers of metal; tanks. Pressure gauges and altimeters; weighing instruments; measuring instruments; signaling instruments; surveying instruments; testing apparatus and instruments, particularly scientific testing apparatus and instruments; optical testing apparatus and instruments; software, particularly for the installation and design of compensators, hoses, conduits, pipes, pipe systems; pressurized water tanks; the aforesaid goods not associated with buoys. Regulating and safety accessories for gas apparatus, gas lines, water apparatus; pressure and volume compensation containers; buffer tanks; pressurized water tanks; tanks. Flexible tubes, not of metal; plastic articles, particularly pipes and hoses whether lined or coated, valves; the aforesaid goods not associated with buoys. Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computers and software; the aforesaid goods not associated with buoys.

Abstract

The invention relates to a method for producing a thermally-insulated coiled hose (7), in which a metal coiled hose (7) that was initially produced in a conventional manner is compressed such that the coils thereof lie against each other and adjacent axial wall regions (7.1) of individual coils thus form at least one non-interrupted lateral wall surface. A ceramic-based coating (8) is subsequently applied to said at least one non-interrupted lateral wall surface, and cured, and the coiled hose (7) formed in this manner is then withdrawn wherein adjacent axial wall regions (7.1) of adjacent coils detach from one another and the coating is interrupted at separation points (8.1). The invention also relates to a coiled hose.

IPC Classes  ?

• B21C 37/12 - Making tubes or metal hoses with helically arranged seams
• F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands

Abstract

The invention relates to a method for producing a heat insulated decoupling element (1) and to such a decoupling element, wherein the heat insulation (8) is provided along the wave band of the bellows. The heat insulation consists of a coating that comprises heat insulating granulate. Thus, the mobility of the bellows is still provided after attaching the heat insulation.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Goods & Services

Flexible pipes and tubes and pipes and tubes of metal, particularly flexible tubes and pipes for gas, flexible tubes and pipes for solar technology and heating technology, flexible tubes and pipes and tubes and pipes for the automobile industry, flexible tubes and pipes and tubes and pipes for the aviation industry; [ components of flexible metal tubes and pipes, compensators, particularly for compensating against fluctuations caused by temperature and by vibrations entering into ducts; ] metal bellows [, particularly for the building of apparatus and valves as well as for vacuum technology and medical technology; common metals and alloys thereof; non-electric cables and wires of common; ] [ goods of common metal not included in other classes, namely, metal storage containers and tanks, especially for gases and liquids, metal volumetric and pressure compensation containers for use in pipeline systems filled with gas or fluids, metal accumulator containers for use in pipeline systems filled with gas or fluids; ] [ metal containers, particularly for gases and liquids; diaphragm bellows; vibration absorbers of metal ] [ Pressure gauges and altimeters; weighing instruments; measuring instruments; optical testing apparatus and instruments; software, particularly for the installation and design of compensators, hoses, conduits, pipes, pipe systems; the aforesaid goods not associated with buoys ] [ Regulating and safety accessories for gas apparatus, gas lines, water apparatus, namely, water hammer arresters, regulating accessories for water or gas apparatus and pipes, vacuum release safety valve for flow shutoff in pools and spas, plumbing valves, plumbing traps, bibbs, and cocks; pressure and volume compensation containers for liquids and gases ] [ Flexible pipes, not of metal; plastic articles, particularly pipes and hoses whether lined or coated, valves; the aforesaid goods not associated with buoys ]

Abstract

The invention relates to a device for the purification of particle-laden gases, having a bellows (2) and having at least one filter element (4, 4a) which is arranged in the bellows (2). To ensure effective filtering without restriction of the mobility of the bellows (2), the invention provides that at least one filter element (4, 4a) is fixed in a positively locking manner to a bellows inner rim (2.1) of a corrugation of the bellows.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
• F01N 3/022 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous

Abstract

Proposed is a decoupling element, in particular for exhaust lines of internal combustion engines in motor vehicles, having a bellows and having a heat insulation material, wherein the heat insulation material is formed by annular segments or the heat insulation material is formed by a helically wound strip with segments formed by individual windings. Here, the segments overlap in the direction of the axis of the bellows.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 13/14 - Exhaust or silencing apparatus characterised by constructional features having thermal insulation

Abstract

The invention relates to a decoupling element, in particular for exhaust gas systems, for use with an injection device (14) for injecting a reductant, such as urea, comprising a corrugated metal bellows (7) and a flow-conducting element (9, 23) arranged inside the bellows (7). The outer diameter (D1) of the flow-conducting element is smaller than the inner diameter (D2) of the bellows (7). According to the invention, the flow-conducting element (9, 23) divides the interior of the bellows (7) into an inner core flow path for a core flow (16) of the exhaust gas flow and an outer jacket flow path for a jacket flow (17) of the exhaust gas flow. The invention further relates to a method, by means of which exhaust gas flowing in an exhaust gas flow flows through a flow-conducting element arranged at a final radial distance inside the bellows, said exhaust gas being divided into a core flow and a jacket flow, whereby the wetting of the bellows and thus the deposition of urea inside the bellows corrugations are avoided.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 13/08 - Other arrangements or adaptations of exhaust conduits
• F01N 3/28 - Construction of catalytic reactors

Abstract

The invention relates to a flexible pipe element (1), in particular for exhaust gas pipes of internal combustion engines in motor vehicles, comprising a thread-like or corrugated sheathing (2) provided with cylindrical connection ends (3), and further comprising a longitudinal support in the form of a metal braided and/or knitted hose (4) which is disposed coaxially outside of the sheathing and fixed to the connection ends. The aim of the invention is to provide a cost-effective design for the longitudinal support of the pipe element which in the case of a traction stop has a smoothly increasing spring characteristic and does not expose the edge corrugations of the sheathing to any detrimental effects of forces originating from the casing. The aim is achieved according to the invention in that a respective annular flexible buffer element (6) is disposed between the end half-corrugations (5) of the sheathing and the angle rings (7) placed on the end of the sheathing such that the deflection of the braided and/or knitted hose from the level of the outside diameter of the sheathing to the level of the cylindrical end of the sheathing is supported exclusively by the buffer element.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• 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

Abstract

The invention relates to a method for producing a heat exchanger. According to said method, at least one plate (5) for dissipating heat is inserted between two neighbouring corrugations (4) of the corrugated body (3) and the corrugations are pressed together in such a way that the inserted plate is braced in a positive and non-positive fit between the corrugations. The invention also relates to a heat exchanger of this type for cooling fluids, said exchanger comprising a tube (2) that is partially designed as a corrugated tube and has at least one plate for dissipating heat that is braced between two corrugations of the corrugated body.

IPC Classes  ?

• F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
• F28F 1/12 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
• F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely

Abstract

The invention relates to a flexible line element (1), in particular for exhaust gas lines from internal combustion engines in motor vehicles, comprising a bellows (2), at least one additional element (3) that coaxially adjoins the bellows, in particular a metal mesh tube or a metal fabric tube and/or a coiled tube, such as a strip-wound tube, which lies within the bellows (2). A damping element made of metal wool lies between the bellows (2) and the additional element (3), said damping element consisting of a spirally coiled strip of metal wool. The subject matter of the invention enables a flexible parameterization of the damping characteristic while simultaneously reducing the range of variation with a simplified assembly.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 13/14 - Exhaust or silencing apparatus characterised by constructional features having thermal insulation
• F01N 1/24 - Silencing apparatus characterised by method of silencing by using sound-absorbing materials
• F16L 51/02 - Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
• F16L 55/033 - Noise absorbers

Abstract

A flexible bellows used in a pipe coupling includes composite convolutions having integral extensions forming one or both of an outer shield or inner liner to enhance performance of the coupling. Embodiments incorporate asymmetric convolution forming discs providing for static angled couplings to accommodate offset or misaligned pipe system components.

IPC Classes  ?

• F16L 21/00 - Joints with sleeve or socket

Abstract

A sealed coupling for connecting two pipe ends include two operating covers for respective connection to respective pipe ends, and elongated bellows having respective ends and a damping element supported by respective rims of said covers, said damping element disposed radially outwardly of said bellows and oriented centrally of said respective bellows ends for dissipating forces on said coupling uniformly across said bellows.

IPC Classes  ?

• F16L 21/00 - Joints with sleeve or socket

Abstract

A coupling (15) has respective support elements (20, 30) extending respectively from each coupling end toward the other, but not directly connected to each other. Radially oriented ends of these elements (20, 30) define a pocket (35) capturing a cushion (38) therein. A non-metallic bellows (16) operably covers the coupling (15). An optional thermal shield (50) is disposed between the bellows (16) and the support elements (20, 30).

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

A sealed coupling (10) for connecting two pipe ends (12, 14) include two operating covers (30, 70) for respective connection to respective pipe ends (12, 14), and elongated bellows (60) having respective ends (60a, 60b) and a damping element (50) supported by respective rims (31, 71) of said covers, said damping element (50) disposed radially outwardly of said bellows (60) and oriented centrally of said respective bellows ends (60a, 60b) for dissipating forces on said coupling (10) uniformly across said bellows (60).

IPC Classes  ?

• F16L 27/103 - Adjustable jointsJoints allowing movement comprising a flexible connection only in which a flexible element, e.g. a rubber-metal laminate, which undergoes constraints consisting of shear and flexure, is sandwiched between partly curved surfaces
• 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

Abstract

A flexible bellows used in a pipe coupling includes composite convolutions having integral extensions forming one or both of an outer shield or inner liner to enhance performance of the coupling. Embodiments incorporate dampers, hangers and convolution modifications. Various embodiments are disclosed.

IPC Classes  ?

• F16L 21/00 - Joints with sleeve or socket

Abstract

A flexible bellows (12, 32, 52, 72, 175, 200, 252, 271, 290) used in a pipe coupling includes composite convolutions having integral extensions (11, 21) forming one or both of an outer shield or inner liner to enhance performance of the coupling. Embodiments incorporate dampers (200), hangers (228) and convolution modifications. Various embodiments are disclosed.

IPC Classes  ?

• F16L 27/10 - Adjustable jointsJoints allowing movement comprising a flexible connection only
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• 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 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

Abstract

Respectively tapered and threaded pipe ends (10a, 20a) are rotated respective to each other to connect the pipe ends and progressively compress a yieldabie damper sleeve (40) therebetween as the pipes (10, 20) are rotated. NVH and torsional forces from one pipe end to another are suppressed.

IPC Classes  ?

• F16L 15/08 - Screw-threaded jointsForms of screw-threads for such joints with supplementary elements
• F16L 55/033 - Noise absorbers

Abstract

The invention relates to a compensating element to compensate for changes in length or an offset in pipe lines. The compensating element comprises a thin-walled corrugated pipe part (1), which is connected to a flange-like connector (2) at both ends, making it possible to provide a preferably detachable coupling to a pipe line. The corrugated pipe part (1) is bonded to the respective connector (2) on the inside of the compensating element such that said parts form a continuous, closed surface together with the joint (8) on the inside of the compensating element. Such compensating elements can be cleaned without difficulty and in a residue-free manner compared to the compensating elements known today and meet maximum requirements with regard to hygiene, freedom of contamination and durability.

IPC Classes  ?

• 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

Goods & Services

Flexible metal pipes, metallic membranes, expansion compensators of metal for pipe conduits and for the machines industry. Flexible plastic pipes, plastic expansion compensators for pipe conduits and for the machines industry.

Goods & Services

Tuyaux flexibles métalliques, membranes métalliques, compensateurs de dilatation métalliques pour conduites de tuyaux et pour l'industrie des machines. Tuyaux flexibles en matières plastiques, compensateurs de dilatation en matières plastiques pour conduites de tuyaux et pour l'industrie des machines.

Goods & Services

Tuyaux métalliques flexibles, membranes, compensateurs.

Goods & Services

Tuyaux métalliques flexibles, membranes, compensateurs.

Goods & Services

Metallic Pipes

Goods & Services

FLEXIBLE METALLIC PIPES, MEMBRANES, AND COMPENSATORS