A spacer (1) for vibration-damped fastening of a mounting part (2) to a carrier part (3), wherein the spacer has a base body (4) with a first flange region (5) and a second flange region (6) which is opposite viewed in the longitudinal direction (L) of the base body and with a passage (7) in which a fastener (8) which is connected to the carrier part, can be received at least sectionally. The base body has an at least two-part design with a first body part (9) and at least a further, second body part (10), wherein the body parts can be detachable connected to one another to create the base body and wherein, in the connected state, a gap region (11) is provided between the first and second flange region, by which the border of a fastening hole (18) configured in the mounting part can be received.

A spring element, in particular a jounce bumper, for a vehicle shock absorber contains a longitudinal axis, a base body having a length along the longitudinal axis, and an end portion configured for contact against a damper cap of the vehicle shock absorber. The base body is elastically deformable between an uncompressed basic state and a compressed state in which the base body is at least partially compressed in the direction of the longitudinal axis. The end portion contains a contact surface that is wound along a helix around the longitudinal axis.

A micro-engine including a rotation structure, the rotation structure including a head portion, a rear portion, and a deformable portion connecting both portions. The deformable portion is deformable in elongation or compression along a main axis and includes a spring element displaying a free end. The free end of the spring element includes at least an abutment member. The deformable portion further includes a wheel-platform which displays a first and a second face, being configured to cooperate with the free end of the spring element in order to transform a back-and-forth movement of the at least one spring element into a rotational movement of the wheel-platform.

A flame-retardant vibration isolation rubber composition which comprises the following ingredient (A) as a rubber component and contains the following ingredients (B) to (D). This rubber composition enables excellent performances regarding flame retardancy and less smoking properties to be exhibited without impairing vibration isolation properties and physical rubber properties. In the flame-retardant vibration isolation rubber composition, ingredient (A) is a diene-based rubber, ingredient (B) is a halogen-compound flame retardant, ingredient (C) is a metal molybdate compound, and ingredient (D) is a metal hydroxide.

Adhesive damping systems are described. A damping system for reducing the effects on a substrate caused by a disruption in the substrate environment includes an adhesive having a plurality of three-dimensional particles dispersed therein. The particles are configured to provide a controlled response to an applied force field. The system further includes a sensor which measures an amplitude and frequency spectrum of the disruption. In a use configuration, the sensor determines the amplitude and frequency spectrum of the disruption received by the substrate; and the applied force field is dependent on the amplitude and frequency spectrum of the disruption.

Springs can provide energy return and have a conductivity that changes in relation to an amount of strain or deformation of the spring. In some embodiments, the springs are made by multi-material 3D printing (additive manufacturing). Such springs made by multi-material 3D printing may include a first material that is electrically non-conductive and a second material that electrically conductive. The extent of deformation or strain of the spring may be determined or estimated by measuring the conductivity or resistivity of the electrically conductive material portion of the spring.

Materials, methods, and manufacture for controlled kinetic energy conversion are provided. In an aspect, a material may include a first section having a first set of voids and an associated first set of properties (e.g., mechanical, thermal), and a second section having a second set of voids and an associated second set of properties. The second set of properties of the second section may be configured to be selectively adjusting by at least partially filling one or more of the second set of voids with a substance. The substance may be configured to inhibit, prevent, or otherwise affect a desired deformation or collapse behavior of the material in response to a load.

A composite material which is elastic, which exhibits a resistive load under deformation which increases with the rate of deformation, which is unfoamed or foamed, comminuted or uncomminuted and which comprises i) a first polymer-based elastic material and ii) a second polymer-based material, different from i), which exhibits dilatancy in the absence of i) wherein ii) is entrapped in a solid matrix of i), the composite material being unfoamed or, when foamed, preparable by incorporating ii) with i) prior to foaming.

The invention relates to an article having a single- or multi-layered main body having elastic properties, in particular an air spring bellows, a metal-rubber element or a vibration damper.

In order to improve its flame retardant properties, the main body of the article consists of or contains at least one layer D constructed from a rubber mixture which is free from halogen-containing flame retardants and contains at least one carbon black having a BET surface area according to DIN-ISO 9277 between 35 and 140 m.sup.2/g and an oil absorption number (OAN) according to ISO 4656 between 70 and 140 ml/100 g and a first aluminum trihydrate (ATH_1) and at least a further aluminum trihydrate (ATH_2), wherein the first aluminum trihydrate (ATH_1) and the further aluminum trihydrate (ATH_2) each have a different particle size.

Provided herein are polyamide compositions including one or more semi-crystalline polyamides and either an amorphous polyamide or a semi-crystalline copolyamide such as PA66/6. The provided compositions are particularly useful as vibration isolators more effective at high-temperature noise and harshness damping than conventional polyamide compositions. Also provided are methods for making the provided compositions, and articles that include the provided compositions.