Abstract: The invention relates to a mechanical seal assembly comprising a mechanical seal with a rotating slide ring and a stationary slide ring, wherein one of the two slide rings has a first slide surface, wherein the other of the two slide rings has a second slide surface with a circumferentially closed sealing blade which protrudes from a bottom region of the second slide surface in the direction of the first slide surface by a height (H), wherein the sealing blade has a width (B) in a range of between 10 and 500 ?m, wherein at least one pre-tensioning element braces the slide rings against each other, wherein the second slide surface and the sealing blade on the second slide surface have a diamond coating.

Abstract: The invention relates to a mechanical seal arrangement, comprising a rotating slide ring (11) and a stationary slide ring (12), which define a sealing gap (13) in between them, and a bellows unit (2) with a bellows element (3) and an intermediate disc (4), wherein the bellows element (3) has a first connector area (31), a second connector area (32), and a bellows intermediate area (33), wherein the bellows element (3) is made of an elastomer material and provides a connection between the rotating slide ring (11) and a rotating structural component (10), wherein the intermediate disc (4) is arranged between the bellows element (3) and the rotating slide ring (11), and wherein the intermediate disc (4) has at least one slit (47) that has a slit width (B) that is smaller than a slit length (S), and wherein the slit (47) is closed at one side, so that a connection area (49) remains at the slit (47) at the intermediate disc (4).

Abstract: The invention relates to a mechanical seal assembly comprising a mechanical seal with a rotating slide ring (3) and a stationary slide ring (2), wherein one of the two slide rings has a first slide surface (30), wherein the other of the two slide rings has a second slide surface (20) with a circumferentially closed sealing blade (22) which protrudes from a bottom region (21) of the second slide surface in the direction of the first slide surface (30) by a height (H), wherein the sealing blade (22) has a width (B) in a range of between 10 and 500 ?m, wherein at least one pre-tensioning element (4) braces the slide rings against each other, wherein the second slide surface (20) and the sealing blade (22) on the second slide surface (20) have a diamond coating, or wherein the second slide surface (20) and the sealing blade (22) on the second slide surface (20) have a coating of cubic boron nitride, and wherein an OH?-ion donor (10) and or an H+ ion donor (10) is present between the first slide surface (30) and t

Abstract: The invention relates to a mechanical seal arrangement, comprising a rotating slide ring and a stationary slide ring which define a sealing gap therebetween, and a bellows unit with a bellows element and an intermediate disk, wherein the bellows element has a first connection region, a second connection region and a bellows intermediate region, wherein the bellows element is produced from an elastomer material and provides a connection between the rotating slide ring and a rotating component, wherein the intermediate disk is arranged between the bellows element and the rotating slide ring, and wherein an inner peripheral region of the intermediate disk is arranged for support on the rotating component.

Abstract: The invention relates to a mechanical seal arrangement, comprising a rotating slide ring (11) and a stationary slide ring (12), which define a sealing gap (13) in between them, and a bellows unit (2) with a bellows element (3) and an intermediate disc (4), wherein the bellows element (3) has a first connector area (31), a second connector area (32), and a bellows intermediate area (33), wherein the bellows element (3) is made of an elastomer material and provides a connection between the rotating slide ring (11) and a rotating structural component (10), wherein the intermediate disc (4) is arranged between the bellows element (3) and the rotating slide ring (11), and wherein the intermediate disc (4) has at least one slit (47) that has a slit width (B) that is smaller than a slit length (S), and wherein the slit (47) is closed at one side, so that a connection area (49) remains at the slit (47) at the intermediate disc (4).

Abstract: The invention relates to a mechanical seal arrangement comprising: a rotating slide ring (2) having a first slide surface and a stationary slide ring (3) with a second slide surface which between them define a sealing gap 4, wherein the first and second slide surfaces have different hardnesses, wherein the harder slide surface has a diamond coating (20) and the softer slide surface is produced from carbon composite material, and wherein an average initial roughness Ra1 (of the diamond coating 20) is less than an average initial roughness Ra2 of the slide surface made from carbon composite material.

Abstract: The invention relates to a mechanical seal arrangement, comprising a rotating slide ring (11) and a stationary slide ring (12) which define a sealing gap (13) therebetween, and a bellows unit (2) with a bellows element (3) and an intermediate disk (4), wherein the bellows element (3) has a first connection region (31), a second connection region (32) and a bellows intermediate region (33), wherein the bellows element (3) is produced from an elastomer material and provides a connection between the rotating slide ring (11) and a rotating component (10), wherein the intermediate disk (4) is arranged between the bellows element (3) and the rotating slide ring (11), and wherein an inner peripheral region (40) of the intermediate disk (4) is arranged for support on the rotating component (10).

Abstract: A seal ring for a mechanical seal, comprising a base body, a first layer applied to a first face side of a base body, and a second layer applied to a second face side of the base body. At least one of the layers is configured as a slide surface of the seal ring.

Abstract: The invention relates to a mechanical seal arrangement comprising: a rotating slide ring (2) having a first slide surface and a stationary slide ring (3) with a second slide surface which between them define a sealing gap 4, wherein the first and second slide surfaces have different hardnesses, wherein the harder slide surface has a diamond coating (20) and the softer slide surface is produced from carbon composite material, and wherein an average initial roughness Ra1 (of the diamond coating 20) is less than an average initial roughness Ra2 of the slide surface made from carbon composite material.

Abstract: The invention refers to a mechanical seal arrangement, comprising: a rotatable seal ring (2), a stationary seal ring (3) and a secondary seal device (5), said secondary seal device (5) being made in one piece and comprising a secondary seal (51) and a ring element (52) of different materials, and the ring element (52) being arranged on the secondary seal (51) on a side directed to the stationary seal ring (3).

Abstract: The invention relates to a mechanical seal assembly, comprising a first stationary seal ring (2), a second rotating seal ring (3) which rotates together with a rotating component (4), wherein the seal rings (2, 3) have sliding surfaces opposite of each other, which delimit a seal gap (5) between each other, wherein the stationary seal ring (2) comprises an integrated heat transfer unit disposed in an interior region (2b) of the stationary seal ring (2), and the stationary seal ring comprises an inlet opening (12) for feeding a coolant and an outlet opening (13) for discharging the coolant, wherein the coolant flows through the interior region (2b) of the seal ring from the inlet opening (12) to the outlet opening (13).

Abstract: The invention relates to a seal ring of a mechanical seal assembly, comprising a base body made of a material including at least one carbide material and a coating provided at the base body and creating a sliding surface, said coating consisting of a diamond material. The inventions is characterized in that the base body is formed of a two-component material by embedding particulate regions made of a diamond material compatible with the diamond material of the coating into the material comprising at least one carbide.

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).