Sleeve for a damper, damper, system, manufacturing method for a sleeve, manufacturing method for a damper

13:

• The sleeve according to claim 12, wherein the recess
• a. is modulated along the longitudinal axis (LA) in order to set the flow impedance (F), wherein the recess is preferably
• i. modulated with respect to a shape and/or surface of a cross-section orthogonally to the longitudinal axis (LA), particularly preferably with respect to a width (B) in a circumferential direction of the sleeve and/or a depth (T) in a radial direction of the sleeve;
• ii. modulated with respect to a position of the recess in a circumferential direction of the sleeve and/or
• iii. actively modulated with respect to a surface composition and/or surface morphology with a flow-dynamic effect;
• b. has a depth (T) in a radial direction of the sleeve which is less than the wall thickness of the sleeve in the same region of the sleeve and/or
• c. comprises at least one flow-dynamically effective coating.

14:

• The sleeve according to claim 12, wherein the sleeve
• a. is designed in its structure, in particular with respect to a wall thickness of the sleeve and/or a material of the sleeve, to provide more savings on material than necessary with respect to the mechanical and/or thermal load-bearing capacity in the damping operation of the damper, wherein preferably on an outer surface of the sleeve a number of contact surfaces are provided for diverting mechanical and/or thermal load into a damper, particularly preferably uniformly distributed over the outer surface of the sleeve;
• b. comprises a metal, preferably a steel, a plastic and/or a composite material;
• c. comprises, on an inner surface of the sleeve, at least one coating, preferably for setting a friction behaviour relative to a piston of the damper, and/or
• d. comprises, on at least one end face of the sleeve, a closure element which closes the interior of the sleeve at one end, preferably in a fluid-tight manner.

15:

• A damper, in particular an industrial shock absorber, comprising
• a. a substantially tubular outer body configured to accommodate mechanical and/or thermal loads during operation of the damper;
• b. a damping space in the outer body configured to accommodate a damping fluid and
• c. a piston which is guided along a longitudinal axis of the outer body over a travel path (H) in the outer body, wherein the piston divides the damping space into a first fluid chamber and a second fluid chamber;
• said damper further comprising a substantially tubular sleeve having at least one recess at least in an inner face of the sleeve, wherein the recess defines a flow channel for the damping fluid for adaptation of the flow impedance (F) for the damping fluid at least in a direction along a longitudinal axis (LA) of the sleeve, wherein a width of the recess along the longitudinal axis increases parabolically from one end of the recess to the other end of the recess, said substantially tubular sleeve being arranged in the damping space, wherein the sleeve is rigidly and preferably releasably connected to the outer body by a number of contact surfaces on an outer surface of the sleeve and has at least one guide surface arranged on an inner surface of the sleeve for guiding the piston over the travel path (H).

17:

• The damper according to claim 16, wherein
• a. the guide face interacts in a fluid-tight manner with an outer surface of the piston;
• b. the guide face and/or the outer surface of the piston has a coating for increasing the thermal conductivity, for reducing friction and/or for reducing wear,
• c. the contact surfaces are connected to the outer body in a thermally conductive manner and/or for mechanical transmission of force, and/or
• d. the contact surfaces occupy substantially the entire outer surface of the sleeve.

21:

• A method of production for a damper, in particular industrial shock absorber, comprising
• a. a substantially tubular outer body configured to accommodate mechanical and/or thermal loads during operation of the damper;
• b. a damping space in the outer body configured to accommodate a damping fluid and
• c. a piston which is guided along a longitudinal axis of the outer body over a travel path (H) in the outer body, wherein the piston divides the damping space into a first fluid chamber and a second fluid chamber;
• said damper further comprising a substantially tubular sleeve having at least one recess at least in an inner face of the sleeve, wherein the recess defines a flow channel for the damping fluid for adaptation of the flow impedance (F) for the damping fluid at least in a direction along a longitudinal axis (LA) of the sleeve, wherein a width of the recess along the longitudinal axis increases parabolically from one end of the recess to the other end of the recess, arranged in the damping space, wherein the sleeve is rigidly and preferably releasably connected to the outer body by a number of contact surfaces on an outer surface of the sleeve and has at least one guide surface arranged on an inner surface of the sleeve for guiding the piston over the travel path (H), wherein the method of production comprises at least the manufacture of the sleeve and the installation of the sleeve into the outer body.