Abstract: The invention relates to a two-chamber bearing, in particular for motor vehicles, which has hydraulic damping, the liquid-filled chambers of which have rubber elastic peripheral walls and are connected to each other by a line which is provided in a rigid intermediate plate. According to the present invention, a so-called active bearing is provided which can be rapidly adapted to the operational conditions in each case by filling the chambers with an electroviscous liquid, the viscosity of which may be controlled by applying an electrical field in the area of the line which passes through the intermediate plate.
Abstract: A bearing for the elastic support of machines includes a rigid fiber-reinforced plastic frame having a primatic cross section and upper, lower and lateral frame walls. Rubber cushions are each vulcanized onto a respective one of the lateral walls and symmetrically disposed relative to each another. A carrier supports the rubber cushions. A retaining bolt for a machine passes through the upper frame wall. The retaining bolt has an enlarged base and an outer surface disposed in the frame. Plastic material uniformly coats the outer surface of the retaining bolt inside the frame. Vertical supporting walls supported on the enlarged base support the retaining bolt against forces tending to pull the retaining bolt out of the frame.
Abstract: An engine mount with hydraulic damping includes a wall of elastomeric material and a bearing plate for supporting an engine together defining a working chamber. The bearing plate is disposed at an end of the working chamber defining an inner surface of the bearing plate facing the working chamber. The inner surface has a recess formed therein in the form of an air storage chamber. A throttle element closes off the air storage chamber from the working chamber. The throttle element has a central throttle opening formed therein.
Abstract: A hydraulic-damping engine mount includes a working chamber having a given diameter and a compensating chamber. A rigid intermediate plate is disposed between the chambers. A conical jacket-like rubber-elastic wall has relatively smaller and larger diameter ends. A metal bearing plate is disposed at the smaller diameter end and at least partly defines the working chamber along with the intermediate plate and the wall. The intermediate plate has an overflow opening formed therein interconnecting the chambers. A rigid plate in the form of a circular disk has a diameter smaller than the given diameter. The rigid plate is disposed in the working chamber parallel to the intermediate plate and is rigidly connected to the bearing plate.
Abstract: A spring element with hydraulic damping includes a rubber-elastic peripheral wall and two rigid end walls defining a chamber therebetween, an electroviscous fluid filling the chamber, a stack of at least two metal plates disposed in the chamber, and elastic rubber elements disposed between and maintaining mutual spacings between the metal plates, the metal plates being alternately connected to a voltage source and to ground potential.
Abstract: A pneumatic spring element includes a rubber-elastic peripheral wall and two rigid end walls defining a chamber therebetween, a bellows-like spring body disposed inside the chamber defining an outer sub-chamber between spring body and the peripheral wall, the spring body being subjected to compressed air in the interior thereof, and an electroviscous fluid filling outer sub-chamber and being controlled by an electrical field.
Abstract: An active two-chamber engine mount with hydraulic damping includes rubber-elastic peripheral walls, a rigid intermediate plate disposed within the peripheral walls defining two chambers interconnected by a channel formed in the intermediate plate, one of the chambers being an engine-side chamber bordered by one of the peripheral walls acting as a support spring exercising a spring deflection, mutually parallel and overlapping electrodes defining the channel, an electro-viscous fluid filling the chambers, a device for applying an electric field to the electrodes controlling viscosity of the fluid, and a device for varying the length of the channel and the degree of overlap of the electrodes in dependence on the spring deflection of the support spring.
Abstract: An engine mount with hydraulic damping, includes at least one fluid-filled working chamber having a substantially conical shell-shaped rubber-elastic peripheral wall serving as a support spring, a support ring being connected to the peripheral wall and having an upper surface, a thrust element with adjustable radial stiffness in the form of a holding plate vulcanized to the upper surface of the support ring and closing the working chamber along with the support ring, the holding plate having a central cylindrical portion projecting freely into the working chamber and having an inner surface, a bell-shaped expanded ring projecting from the inner surface on the cylindrical portion toward the peripheral wall and having a free end, and a rubber-elastic membrane closing the free end of the expanded ring enclosing a volume of air.
Abstract: An active two-chamber engine mount with hydraulic damping includes rubber-elastic peripheral walls, a rigid intermediate plate disposed between the walls defining chambers, an electro-viscous fluid filling the chambers and flowing in a given fluid flow direction through at least one overflow opening formed in the rigid intermediate plate. At least two mutually parallel metallic mesh plates are successively disposed across the given fluid flow direction in the vicinity of the at least one overflow opening, and a control device for alternatingly applying an electric field to the mesh plates as electrodes for controlling the viscosity of the fluid.
Abstract: A two-chamber engine mount with hydraulic damping includes a cup-shaped housing having a cylindrical wall with an inner surface and a given height, an open upper end and a bottom. A frustoconical rubber-elastic bearing spring with inner and outer surfaces, a base region and substantially the given height is disposed in the housing. An engine mount plate is supported on the bearing spring. A flexible-volume, rubber-elastic diaphragm closes off the open upper end of the cylindrical wall. The inner surface of the support spring and the bottom of the housing defines a working chamber and the outer surface of the bearing spring, the inner surface of the cylindrical wall and the diaphragm defines a compensating chamber. The base region of the bearing spring has a transfer port formed therein interconnecting the working chamber and the compensating chamber.
Abstract: A sealing profile includes a basic body being formed of elastomeric material and having a U-shaped cross section defining an inner surface thereof with sides. A metallic reinforcement inlay is disposed in the basic body. Sealing lips are integrally formed on the inner surface of the basic body. At least one of the sealing lips on one of the sides of the inner surface of the basic body is formed of the same material as the basic body. The at least one sealing lip has a substantially triangular cross section defining corners and an enlarged head surface. One of the corners pivotally connects the at least one sealing lip to the basic body. The enlarged head surface of the sealing lip has a concavely curved recess formed therein.
Abstract: An elastic engine mount with a dynamic stiffness decreasing in dependence on frequency for damping sound transmitted through solids includes a leaf spring having a central region and ends, an elastomer support disposed on the central region of the leaf spring for transmitting force to the leaf spring in a given direction and loading the leaf spring by bending, and at least two support points supporting the leaf spring, the ends of the leaf spring extending freely beyond the support points forming auxiliary masses coupled to the elastomer support vibrating in a direction opposite to the given force transmission direction.
Abstract: A deformable drive shaft includes drive side and driven side connections and a flexible intermediate section interconnecting the connections, the flexible intermediate section being formed of an alternating sequence of disc-shaped rigid segments and disc-shaped flexible segments, the formed rigid segments having surfaces with complementary funnel-shaped projections and funnel-shaped depressions formed thereon, the funnel-shaped projections of a given formed rigid segment extending through an adjacent flexible segment into adjacent respective funnel-shaped depressions of the next formed rigid segment.
Abstract: A two-chamber engine mount with hydraulic damping includes an engine side to be connected to an engine, fluid-filled chambers having rubber-elastic peripheral walls including a chamber disposed closer to the engine side, an intermediate plate disposed between the chambers having a conduit disposed therein through which the chambers are interconnected, an engine support plate at the engine side having a first membrane chamber formed therein, a first membrane closing off the first membrane chamber, the intermediate plate having a second central membrane chamber formed therein, and a second membrane closing off the second membrane chamber from the fluid-filled chamber to the engine side.
Abstract: A two-chamber engine mount with hydraulic damping includes rubber-elastic peripheral walls, a rigid intermediate plate disposed within the peripheral walls defining two chambers along with the peripheral walls being acted upon by vibrations induced in a given direction, hydraulic fluid filling the chambers, the intermediate plate having a channel formed therein interconnecting the chambers, the intermediate plate having another chamber formed therein, and a rubber-elastic membrane disc having two sides and being loosely disposed in the other chamber, both of the sides of the membrane disc being acted upon by the hydraulic fluid moving the membrane disc parallel to the given direction for combined frequency and amplitude decoupling.
Abstract: A pretensionable and hydraulically damped mounting element with an outer mounting sleeve, and an inner part which is held by an elastomeric body in the interior of the outer mounting sleeve, the elastomeric body above and below the inner part being formed with chambers serving as a mechanical spring and being filled with hydraulic fluid and connected to one another via a channel includes end caps located at respective end faces of the mounting element and being formed of elastic, deformable elastomeric material, the elastomeric body extending from the inner part substantially radially outwardly towards opposite sides of the outer mounting sleeve, the elastomeric body and at least one of the end caps defining the channel therebetween, the channel having a varying cross section.
Abstract: A two-chamber engine mount with hydraulic damping includes a housing having rubber-elastic peripheral walls and an engine side to be connected to an engine, an intermediate plate dividing the housing into fluid-filled chambers being in communication with each other through a penetration formed in the intermediate plate, and an active vibration generator being integrated into one of the fluid-filled chambers closest to the engine side and being controllable in dependence on predetermined operating parameters.