Abstract: A vibration decoupling device for use in exhaust systems of internal combustion engines, comprises a pair of axially spaced conduit connecting members connected with each other by a bellows-type connecting element, and a force transmitting means having at least axial elasticity for transferring forces between said conduit connecting members. The force transmitting means comprises a housing surrounding said bellows-type connecting element, said housing being connected near at least one axial end thereof to an adjacent conduit connecting member by an articulated spring assembly comprising one or more independent spring means. Each spring means comprises at least one leaf spring element and has three force transmitting portions.

Abstract: A face seal assembly comprises a pair of co-operating seal rings of which one is provided for mounting on a rotary component and the other on a stationary component. The seal rings have substantially radially aligned seal faces between which during operation a seal gap is provided for sealing a zone peripherally outward of the seal faces relative to a zone peripherally inward thereof. A plurality of peripherally spaced recesses effective for pumping a gas are provided in at least one of the seal faces, said gas recesses extending from one periphery of the seal face towards, but the of ends said recesses being radially spaced from, the other periphery thereof. A surface area ratio FGFA/FG g in a range between 0.35 and 0.65, preferably 0.4 and 0.6 is provided on the seal face having said gas recesses. FGFA is the total surface area of the gas recesses as a projection onto the seal face, and FG is the total surface area of the seal face.

Abstract: A mechanical face seal device includes a bellows assembly comprising a bellows member of resilient material having axially spaced mounting portions interconnected by an intermediate foldable portion, one of said mounting portions being adapted to be fixed relative to a rotary component whilst the other is in torque transferring relationship with a rotary annular seal member, and a biasing means for diasing the rotary annular seal member against the stationary annular seal member. An essentially stiff support member having a predetermined radial dimension is provided for axially supporting the rotary annular seal member and is itself supported by the bellows member.

Abstract: A mechanical face seal assembly for sealing a rotating member with respect to a stationary member comprises at least a pair of cooperating annular sealing elements, of which one is mountable in a non-rotating manner with respect to the stationary member and the other for common rotation with the rotating member. Between the rotating member and the non-rotating sealing element an annular space is defined, the radial dimension of which varies between a region of minimum radial dimension and a region of maximum radial dimension, which are offset circumferentially to each other. Inlet means for introducing a buffer liquid into the annular space at or near to the region having a maximum radial dimension and outlet means for discharging said buffer liquid from said annular space at or near to the region having a minimum radial dimension are provided.

Abstract: A conduit vibration decoupling device, particularly for installation in exhaust conduit systems of internal combustion engines, comprises a pair of axially spaced conduit connector members connected with each other by a flexible bellows-type sealing conduit element, and a force transfer means having at least axial pliancy for transferring forces between the conduit connector members. The force transfer means comprises a housing extending between the conduit connector members along the flexible conduit element and connected near at least one of its axial ends by an articulated spring assembly comprising at least one annular spring element to the associated conduit connector member. The spring element extends around the periphery of the conduit connector member and can be either an annular disk-shaped element or an annular element made of a metallic cable material. The housing may be free of outer protruding parts thereby it may have an outer smooth, cylindrical configuration.

Abstract: A conduit vibration decoupling device, particularly for exhaust systems of internal combustion engines, comprises a pair of axially spaced conduit connecting members connected with each other by a flexible, bellows-type connecting element, and a force transmitting means having at least axial elasticity for transferring forces between said conduit connecting members. The force transmitting means comprises a housing surrounding said. flexible connecting element and connected to at least one of the conduit connecting members by an articulated spring arrangement which comprises at least a pair of spring means circumferentially spaced from each other.

Abstract: A seal arrangement for sealing a shaft with respect to a housing containing a fluid comprises a face seal exposed to a buffer gas on a portion thereof facing away from the fluid. Disposed upstream of the face seal at the fluid said portion thereof is a collecting chamber for receiving a leakage of the buffer gas having gained access to the fluid-side portion of the face seal. The collecting chamber is in communication with an external separating means for separating the gas phase from the fluid phase of a gas/fluid mixture having collected in the collecting chamber. The fluid phase can be returned into the interior of the housing.

Abstract: A magnet coupling system has driving and driven coupling elements, each of which has a magnetic element thereon between which a gap is defined through which a can passes. The magnet coupling system includes a sleeve bearing apparatus comprising a pair of axially spaced sleeve bearings. The sleeve bearing apparatus has a bearing casing enclosing both sleeve bearings and defines a closed fluid flow chamber through which a temperature-control fluid is circulated from an external source. An outer circumference of the bearing casing exchanges heat with an inner circumferential surface of the driven coupling element, and is accommodated substantially-completely within the driven coupling element, to heat or cool the sleeve bearing apparatus and the driven coupling element, and thus the gap between the magnet elements, to a suitable temperature.

Abstract: In a flexible connection arrangement for two pipe portions having a metallic bellows which is connected axially on either side in a gastight manner with connection pieces, the sides of the connection pieces facing the bellows are provided with radially widened end portions. Also provided are a damping insert, which extends coaxially relative to the bellows a along its length and is in a working connection therewith, and heat protection device for the bellows acting in the radially inward direction. The damping insert encloses the bellows radially outwardly such that the turns of the bellows contact the damping insert. The lateral end regions of the damping insert are held in the widened end portions without being fastened thereto and are supported radially outwardly by the latter. The connection pieces are connected with one another via a spring which surrounds the damping insert radially outwardly.

Abstract: An arrangement for concentrically positioning a first part relative to a second part, for example, a casing, or sleeve, (2) relative to a shaft (1), when the parts are made from materials with different coefficients of thermal expansion, provides a radial clearance (4) between the first and second parts. The first part (2) is supported along its length by portions facing radially away from the second part, at an abutment arrangement (7, 8) having the same or similar thermal expansion characteristics as the first part (2). The abutment arrangement (7, 8) is held concentric relative to the second part (1).

Abstract: A seal between a first component (1') formed by the stationary component (2'). The first component is provided with a radially outwardly projecting annular disc (3') which grips around a ring housing (4') having a U-shaped cross section and being sealed against the second component by a compensator (7'). The inner faces of the two side walls (4'a, 4'b) of the housing are provided with concentrically arranged annular grooves (4d). A sealing ring (5) of an elastically yielding sealing material and an elastically bendable supporting ring (11) are arranged in the annular grooves so as to be axially displaceable. One side of the supporting ring lies against the sealing ring (5) while its other side is supported on springs (12) which press the sealing ring against the annular disc.

Abstract: A high-temperature resistant sealing gasket, adapted to be clamped between flanged pipe ends for service in a static environment, comprises a flat mica mat including, in a superposed relationship, a great number of mica scales, each formed of a plurality of stacked, extremely thin mica platelets held together by natural cohesion. The mica scales are oriented, with their largest opposite faces, essentially parallel to the opposite mat surfaces. The mica mat further includes a binder situated between overlapping zones of immediately superposed scales. Particular materials for the mica scales and the binder are selected such that the mica mat, in a non-installed state, has the property of undergoing, when heated, a thickness increase in a direction perpendicular to the largest scale faces. The thickness increase starts at a temperature of about 500.degree. C. and reaches, at 800.degree. C., 100% relative to the thickness at 20.degree. C.

Abstract: A coupling assembly for connecting a flue gas pipe with an inlet duct of a chimney includes a tubular compensator having a first end secured to the flue gas pipe and a second end oriented towards the inlet duct and having a radially projecting flange. The chimney part which surrounds the inlet duct has a planar face provided with a groove spacedly surrounding the inlet duct. An endless bead forming part of the flange projects from the frontal face thereof and is received in the groove. There are further provided screw connections anchored in the chimney externally of the compensator flange and pressing members operatively connected to the screw connections and being pressed thereby against the flange to clamp the flange against the planar chimney face. The pressing members extend over and across the bead. A rubber-elastic adhesive layer is situated between the flange and the planar face of the chimney and is glued to the flange, the bead, the planar face and the groove.

Abstract: A seal assembly for an articulated coupling of two pipes has a first flange adapted for affixation to the end of a first pipe, a first slide face on the first flange, and a second flange adapted for affixation to the end of a second pipe. The second flange has an annular part including an engagement face oriented towards the first flange and a tubular nipple projecting towards the first flange. The seal assembly further has a sheet metal ring surrounding the tubular nipple and having a generally U-shaped cross section for defining a ring cavity open towards the engagement face. A second slide face, provided on the outer surface of an outer wall portion of the sheet metal ring, is surrounded by, and is in a sliding contact with, the first slide face. An annular filler mass of a sealing material is received in the cavity. The filler mass extends axially beyond the sheet metal ring and is in contact with the engagement face of the annular part of the second flange.