A flexible, thermal-isolating tube includes a first fluid flow channel portion having a dual-walled configuration, a second fluid flow channel portion having a dual-walled configuration, and a bellows disposed between and coupled to each of the first and second fluid flow channel portions. The flexible, thermal-isolating tube, including each of the first and second fluid flow channel portions, and the bellows, is configured as a unitary structure. The flexible, thermal-isolating tube is manufactured using an additive manufacturing process. The flexible, thermal-isolating tube is disposed within a gas turbine engine.

A pneumatic spring for a running gear of a motor vehicle, including a pneumatic spring cover and a pneumatic spring piston, wherein a pneumatic spring bellows composed of elastomer material is braced in air-tight fashion between the pneumatic spring cover and the pneumatic spring piston, wherein the pneumatic spring bellows is at least partially surrounded by a sleeve-like outer guide, wherein a corrugated bellows surrounds the pneumatic spring bellows and the outer guide, and wherein, between the outer guide and the corrugated bellows, there is provided a separately formed, air-permeable fastener by which the corrugated bellows is fixed to the outer guide.

According to an aspect of the present disclosure, a thrust inhibitor device for use with a vacuum bellows includes a pair of thrust blocks each including a body and a shaft, in which the pair of thrust blocks are configured to engage opposed flanges of the vacuum bellows, and a turnbuckle having a pair of axial holes each connected to one of the shafts. A length between opposing ends of the pair of thrust blocks is adjustable to control a deflection of the vacuum bellows.

A spring is provided that exhibits a variable and non-linear loading response upon compression. The spring comprises a continuous wire having a lower end convolution, an upper end convolution, and a plurality of helical intermediate convolutions. The upper end convolution, the lower end convolution, and the helical intermediate convolutions each have a respective diameter, with the continuous wire further defining a pitch between the various convolutions. In the spring, one or more of the diameters of the convolutions or one or more of the pitches varies along the length of the continuous wire such that the spring exhibits a non-linear loading response upon compression. A mattress is further provided and includes a plurality of the springs arranged in a matrix.

A spring is provided that exhibits a variable and non-linear loading response upon compression. The spring comprises a continuous wire having a lower end convolution, an upper end convolution, and a plurality of helical intermediate convolutions. The upper end convolution, the lower end convolution, and the helical intermediate convolutions each have a respective diameter, with the continuous wire further defining a pitch between the various convolutions. In the spring, one or more of the diameters of the convolutions or one or more of the pitches varies along the length of the continuous wire such that the spring exhibits a non-linear loading response upon compression. A mattress is further provided and includes a plurality of the springs arranged in a matrix.

A bellows formed from an elastic material with a cylinder jacket as a basic shape, a cylinder axis corresponding to a working direction, and a jacket surface shaped into a plurality of folds transversely with respect to the working direction. Each fold has a first fold diameter perpendicular to the working direction and spaced apart therefrom in the working direction, a second fold diameter differing from the first fold diameter and spaced apart therefrom in the working direction, against the first fold diameter, and a fold wall formed integrally therewith. Consecutive folds in the working direction each have the same inner fold diameter, but alternating different outer fold diameters.

A soft-to-hard goods connector is provided which includes an elastomeric bladder having a preform layer and an outer textile layer enclosing the preform layer. The outer textile layer has at least one skin extension layer extending beyond a periphery of the elastomeric bladder. The skin extension layer has a chord attached at a distal end with the chord being perpendicular to the skin extension layer. The connector includes a host rigid structure with a receiving component. The receiving component has a mounting track with the chord mounted in the mounting track. The receiving component permits the chord to rotate about a longitudinal axis of the chord with a limited range of motion.

A vibration body unit includes: a vibration body; an inner cylinder that surrounds a circumference of the vibration body and that is elastically deformable; an outer cylinder that surrounds a circumference of the inner cylinder and that has an attachment section which is attached to a base part; a plurality of first spacers that are interposed between the vibration body and the inner cylinder and that are arranged to be spaced in a circumferential direction; and a plurality of second spacers that are interposed between the inner cylinder and the outer cylinder and that are arranged to be spaced in a circumferential direction, wherein the plurality of first spacers and the plurality of second spacers are arranged such that at least part of each of the plurality of first spacers faces each of the plurality of second spacers in a radial direction across the inner cylinder.

A damper bumper cap for covering the rod side end of the damper tube containing a piston rod seal and for retaining a dust cover on the damper tube. The cap includes a side wall positioned in contact with the damper tube, an end wall that extends radially inwardly over the piston rod seal, and an annular skirt that is spaced radially outward of the side wall. First and second groups of connection wall segments extend radially between the side wall and the annular skirt at different heights to define vent openings in the spaces between the connection wall segments in the first and second groups of connection wall segments. The vent openings thus provide a plurality of tortuous airflow paths through the cap at circumferentially spaced locations.

A vehicle strut assembly includes a boot and a coil spring. The boot has a vertical wall, a spring receiving portion and a centering portion projecting from the vertical wall. The coil spring has an end section, a transition section and a main section, the end section being fitted to the spring receiving portion encircling at least a portion of the vertical wall and defining a first radially inner diameter. The transition section has an increasing inner diameter extending from the end section to the main section. The main section defines a second radially inner diameter greater than the first radially inner diameter. The centering portion is positioned to contact a radially inner surface of the transition section of the coil spring restricting movement of the end section of the coil spring relative to the spring receiving portion of the boot.