Abstract

Rotary joints are disclosed, such as for supplying fluid to a pressure chamber that is disposed between a rotatable component and a stationary component. The rotary joint may include a seal carrier having at least one channel for a fluid connection to the pressure chamber. At least two axially spaced apart sealing rings may be disposed on the seal carrier for a static sealing of the at least one channel. At least one sealing element may be non-rotatably disposed on the seal carrier and configured to form an axial and a radial seal of the pressure chamber. The at least one sealing element may be configured to bear on a ring element that is non-rotatably connected to the rotatable component when pressure is built up in the pressure chamber and the at least one sealing element may have means for reducing the axial pressure exerted on the ring element.

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member

Abstract

The invention relates to a rotary feedthrough for feeding fluid into a pressure chamber (1), which is arranged between a rotatable component (2) and a stationary fixed component (3) of a vehicle, comprising a seal support (4) which has at least one channel (5) for fluidically connecting to the pressure chamber (1), wherein at least two axially spaced sealing rings (6a, 6b) are arranged on the sealing support (4) for statically sealing the at least one channel (5). According to the invention, a first and a second sealing element (7a, 7b) are mounted on an anti-rotation locking element (8) connected rotationally fixed to the sealing support (4), wherein the first sealing element (7a) is provided for dynamically sealing the pressure chamber (1), and wherein the second sealing element (7b) is provided for statically sealing the pressure chamber (1).

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
• F16L 17/025 - Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket the sealing rings having radially directed ribs
• F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe

Abstract

The invention relates to a rotary leadthrough for feeding fluid to a pressure chamber (1) which is arranged between a rotatable component (2) and a stationary fixed component (3) of a vehicle, comprising a seal carrier (4) with at least one channel (5) for fluidic connection to the pressure chamber (1), wherein at least two seal rings (6), which are axially spaced apart, for statically sealing off the at least one channel (5) are arranged on the seal carrier (4), and wherein at least one seal element (7) for axially and radially sealing off the pressure chamber (1) is arranged in a rotationally fixed manner on the seal carrier (4). According to the invention, the at least one seal element (7) comes to rest axially on a ring element (8), which is connected to the rotatable component (2) in a rotationally fixed manner, when pressure builds up in the pressure chamber (1), wherein the at least one third seal element (7) has means for reducing the axial contact-pressure on the ring element (8).

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member

Abstract

A fluid rotary passage is provided for sealing a fluid pressure chamber between a rotatable shaft and a shaft seat. The fluid rotary passage includes a sealing ring carrier and a fitting body, rotationally fixed or in contact with one of the shaft and the shaft seat in a fluid-tight manner and radially spaced from each other to create the chamber between them. Two sealing rings are provided axially spaced from each other and each sealingly applied with one contact surface against the carrier and one against the fitting body, for sealing the chamber against the outside. The carrier and the fitting body together form two axially spaced receiving grooves for the sealing rings, which are open toward the chamber and have at least one holding protrusion at least partially securing the sealing ring disposed in the respective receiving groove against a radial dislocation from the groove toward the chamber.

IPC Classes  ?

• F16J 15/00 - Sealings
• F16J 15/16 - Sealings between relatively-moving surfaces
• F16L 27/087 - Joints with radial fluid passages

Abstract

A pressure portion (1) includes a receiver (2) for adjustable lateral support of a rack (Z) for a steering arrangement of vehicles. The pressure portion (1) arranged in positionally variable relationship guided linearly in a guide passage (F) for adjustment of the support of the rack (Z) in an adjustment direction (e), and enlarged or expanded for at least partial contact at an inside wall side in the guide passage (F) with respect to a directional component (r2) which is radial relative to the adjustment direction (e). The pressure portion (1) has radially at an outside thereof an elastomeric force application aid (11) for transmission of forces from the pressure portion (1) to an inside wall (10) of the guide passage (F).

IPC Classes  ?

• F16H 1/04 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
• F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
• B62D 3/12 - Steering gears mechanical of rack-and-pinion type
• F16H 55/28 - Special devices for taking up backlash

Abstract

The invention refers to a pressure portion system (1) for adjustable lateral support of a rack (Z), in particular for a steering arrangement of vehicles, comprising a pressure portion (6) which is preferably linearly guided in the adjustment direction (e) in a guide passage (8) of a guide (2), and an adjustment device (3) which is coupled to the pressure portion (6) in force- operative relationship for changing the position of the pressure portion (6) in the guide passage (8) and thus for adjusting the lateral support of the rack (Z), wherein the pressure portion (6) at an end which is at the rear in the adjustment direction (e) has a receiving means (7) having a pressure surface (15) for pressing against the rack (Z). According to the invention the pressure portion (6) is enlargeable or expandable for at least partial contact thereof at the inside wall side in the guide passage (8) with respect to at least one directional component (r) which is radial in relation to the adjustment direction (e). Especially, the pressure portion (6) is so arranged in the guide passage (8) that it can be expanded at least in a first directional component (r1) which is radial with respect to the adjustment direction (e), and can be applied in laterally supporting relationship against the rack (Z).

IPC Classes  ?

• B62D 3/12 - Steering gears mechanical of rack-and-pinion type
• F16H 55/28 - Special devices for taking up backlash

Abstract

A rotary oil feedthrough is provided for sealing off a pressurized oil compartment between a rotatable shaft and a shaft mount, where the rotary oil feedthrough displays a radial oil passage for connecting an oil duct of the shaft and/or the mount to the pressurized oil compartment in fluid-permeable fashion, and has a seal arrangement that seals off the pressurized oil compartment on both sides in the axial direction of the shaft. The rotary oil feedthrough displays a sealing ring carrier that can be fastened to the shaft or the mount in non-rotating and fluid-tight fashion, the sealing ring carrier being arranged coaxially to the shaft or the mount, and an adapter that can be positioned on the other component of shaft and mount in fluid-tight fashion, and is surrounded laterally by the sealing ring carrier in the axial direction of the shaft. Located between sealing ring carrier and adapter are two axially separated sealing rings that each lie on the sealing ring carrier and the adapter in sealing fashion in order to seal off the pressurized oil compartment in the axial direction of the shaft, and that can be rotated relative to the sealing ring carrier and/or the adapter. The rotary oil feedthrough displays the longest possible service life, the minimum possible leakage, and good response characteristics, and is of simple structural design.

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
• F16L 27/087 - Joints with radial fluid passages
• F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid

Abstract

The invention relates to a rotating union for oil for sealing an oil pressure chamber between a rotatable shaft and a shaft holder, wherein the rotating union for oil has a radial oil passage in order to connect an oil conduction duct from the shaft and/or holder to the oil pressure chamber in a fluid-permeable manner, and with a sealing arrangement which seals off the oil pressure chamber on both sides in the axial direction of the shaft. According to the invention, the rotating union for oil has a sealing ring support which can be fastened to the shaft or the holder in a rotationally fixed and fluid-tight manner and is arranged coaxially with respect to the shaft or holder, and a mating body which can be fitted to the other component, the shaft or holder, in a fluid-tight manner and is surrounded laterally in the axial direction of the shaft by the sealing ring support. Two sealing rings which are axially spaced apart from each other are arranged between the sealing ring support and mating body, each sealing ring bearing against the sealing ring support and mating body in a sealing manner in order to seal off the oil pressure chamber in the axial direction of the shaft, and each sealing ring being rotatable in relation to the sealing ring support and/or the mating body. The rotating union for oil according to the invention has a service life which is as long as possible, as little leakage as possible and a good response behaviour and is designed in a structurally simple manner.

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
• F16J 15/44 - Free-space packings
• F16J 15/46 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
• F16J 15/54 - Other sealings for rotating shafts
• F16L 27/087 - Joints with radial fluid passages

Abstract

An optical collector includes an optical input for incoupling light from multiple incoming optical waveguides into the collector and an optical output for outcoupling light from the collector into an outgoing optical waveguide. The collector includes an optical body having a base portion in which the optical input including at least two coupling points is arranged, and a tip portion in which the optical output including a second coupling point is arranged, wherein the first coupling points each include an optical input cross-sectional area and the second coupling point comprises an output cross-sectional area, and wherein the output cross-sectional area is smaller than the total of all input cross-sectional areas. The optical body of the collector can be cone-shaped and may include a hollow cone.

IPC Classes  ?

• G02B 6/26 - Optical coupling means
• G02B 6/42 - Coupling light guides with opto-electronic elements

Abstract

The invention relates to an optical collector having an optical input for coupling light from a plurality of input light optical fibers into the collector and an optical output for decoupling light out of the collector into output light optical fibers and furthermore a device having said optical collector. According to the invention, the collector has an optical body having a base region (5) wherein the optical input with at least two first coupling points (7) is arranged, and a top region (6) wherein the optical output (3) is arranged having a second coupling point, wherein the first coupling points each have one optical input cross-section area and the second coupling point has one output cross-section area and wherein the output cross-section area is smaller than the sum of all input cross-section areas. The optical body of the collector can be cone-shaped and include a hollow cone.

IPC Classes  ?

• F21S 11/00 - Non-electric lighting devices or systems using daylight
• G02B 6/00 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings
• G02B 6/28 - Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals