An apparatus for delivering a flow of gas having: a controller; a housing defining a gas-flow passage flowing a high concentration oxygen gas; a motor with windings, resilient bearing mounts and an impeller to deliver the gas through the gas-flow passage; a flexible printed circuit electrically connecting the motor to the controller and sensor system; and an elastomeric shield to pneumatically isolate the windings from the gas-flow passage.

An operating device includes: an operating member operable by a user; a rotation shaft having an end portion provided with the operating member; a first bearing supporting a first portion of the rotation shaft; and a second bearing supporting a second portion of the rotation shaft. The second portion is located nearer to the operating member than the first portion in an axial direction of the rotation shaft.

An operating device includes: an operating member operable by a user; a rotation shaft having an end portion provided with the operating member; a first bearing supporting a first portion of the rotation shaft; and a second bearing supporting a second portion of the rotation shaft. The second portion is located nearer to the operating member than the first portion in an axial direction of the rotation shaft.

The present invention provides a bearing pressure plate and a dynamo-electric machine using the bearing pressure plate which are capable of avoiding breakage of a bolt by dispersing a stress when a load due to vibrations etc. is applied. A bearing pressure plate 5 has an annular inner ring portion 11 abutting against an outer ring 3Ba of a rolling bearing 3 that supports a rotation shaft 4, an annular outer ring portion 12 located at a radial direction outer side of the inner ring portion 11 and having a plurality of bolt holes 12b through which the outer ring portion 12 is secured to a fixing portion side with a plurality of bolts 12a, and bridge portions 13 integrally connecting the inner ring portion 11 and the outer ring portion 12 at positions except the bolt holes 12b in a circumferential direction.

The present invention provides a bearing pressure plate and a dynamo-electric machine using the bearing pressure plate which are capable of avoiding breakage of a bolt by dispersing a stress when a load due to vibrations etc. is applied. A bearing pressure plate 5 has an annular inner ring portion 11 abutting against an outer ring 3Ba of a rolling bearing 3 that supports a rotation shaft 4, an annular outer ring portion 12 located at a radial direction outer side of the inner ring portion 11 and having a plurality of bolt holes 12b through which the outer ring portion 12 is secured to a fixing portion side with a plurality of bolts 12a, and bridge portions 13 integrally connecting the inner ring portion 11 and the outer ring portion 12 at positions except the bolt holes 12b in a circumferential direction.

A bearing bushing for a motor vehicle includes a sleeve, a bolt arranged inside the sleeve, and at least one elastomer element arranged radially between the sleeve and the bolt for supporting the bolt in the sleeve in a damping manner. The bolt has a ball element axially between two distal ends, wherein the ball element interacts with at least two movable ball socket elements in order to change the stiffness of the bearing bushing. This allows the bearing bushing can be switched between at least two stiffness levels.

A bearing bushing for a motor vehicle includes a sleeve, a bolt arranged inside the sleeve, and at least one elastomer element arranged radially between the sleeve and the bolt for supporting the bolt in the sleeve in a damping manner. The bolt has a ball element axially between two distal ends, wherein the ball element interacts with at least two movable ball socket elements in order to change the stiffness of the bearing bushing. This allows the bearing bushing can be switched between at least two stiffness levels.

A tolerance ring having a first axial end, a second axial end, and a central axis, the tolerance ring including an annular band; a plurality of protrusions, all of the plurality of protrusions extending from the annular band; and a guide portion extending from the annular band towards the first axial end of the tolerance ring, where the guide portion includes a guide surface that is curved in an axial section.

A tolerance ring having a first axial end, a second axial end, and a central axis, the tolerance ring including an annular band; a plurality of protrusions, all of the plurality of protrusions extending from the annular band; and a guide portion extending from the annular band towards the first axial end of the tolerance ring, where the guide portion includes a guide surface that is curved in an axial section.

A health and condition monitoring system of an elastomeric component comprising an actuator, a sensor, and a processing unit. The sensor and the actuator need to be attached directly or indirectly to the elastomeric component. The actuator induces an impulse, or possibly a chirp, into the elastomeric component. The sensor senses the response, the impulse response function. The processing unit analyzes the impulse response function and determines a health and condition indicator. This is repeated and when enough indicators have been determined, then a health and condition marker can be determined, covering if the elastomeric component is in a start period of usage, in a main usage period or in a final period of usage.