摘要:
A molded hose branch of rubber includes an assembly formed by slipping completely vulcanized rubber hose lengths with ends onto free ends of a plastic tubing branching piece. The assembly is placed into a mold, and a thermoplastic material, for instance a blended mixture of polypropylene and EPDM, is injection molded around the assembly so as to join the thermoplastic material to the rubber hose lengths. This results in a sleeve around the rubber hose lengths and free parts of the tubing branching piece between the ends of the rubber hose lengths.
摘要:
A method for producing and vulcanizing an inflatable hollow body from a double cloth having upper and lower plies with edges and pile yarns spacing the plies apart includes applying a respective gas-tight unvulcanized layer of rubber to each of the upper and lower piles of the double cloth. The edges of the upper and lower plies are joined with angle braces forming a hollow body. The hollow body is evacuated over a predetermined period of time and the hollow body is vulcanized in the evacuated state.
摘要:
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.
摘要:
A co-oscillating, volume-changing resonator in the form of a silencer, includes a lens-shaped housing formed of a material having a given flexural stiffness, the housing being arched defining an evacuated cup-shaped cavity formed therein, and a coating layer completely surrounding the housing, the coating layer being formed of a material having a flexural stiffness being at most one-third of the given flexural stiffness of the material of the housing.
摘要:
A method for producing molded hose branches of rubber and a molded hose branch produced according to the method, includes slipping completely vulcanized rubber hose lengths with ends onto free ends of a plastic tubing branching piece for forming an assembly, placing the assembly into a mold, and injection molding a thermoplastic rubber material in the form of a blended mixture of polypropylene and EPDM around the assembly for joining the thermoplastic material to the rubber hose lengths for forming a sleeve around the rubber hose lengths and free parts of the tubing branching piece between the ends of the rubber hose lengths.
摘要:
A hydraulically acting damping element includes a main chamber and a compensation chamber. Two rigid end walls and a rubber-elastic circumferential wall surround one of the chambers. An elastic, pressure-stable bellows has ends and a circumference. The bellows is disposed concentrically inside the one chamber and rigidly joined to the end walls with the main chamber inside the bellows and the compensation chamber between the bellows and the circumferential wall. An over-flow circuit is formed on one of the ends of the bellows and extends over at least part of the circumference of the bellows for hydraulically connecting the main chamber and the compensation chamber.
摘要:
An annular resilient body of fiber composite material for vibration-insulating support of drive assemblies includes at least one wound body having a circumferential direction and a loading direction. The at least one wound body includes a plurality of wound concentric layers formed of synthetic resin impregnated fibers extending in the circumferential direction and transverse to the load direction, and at least one layer of fibers extending at an angle relative to the concentric layers. Force-inducing fastening elements are disposed on two opposite sides of the at least one wound body. The fastening elements are formed of metal brackets at least partly encompassing the at least one wound body and elastic rubber layers bracing the metal brackets against the at least one wound body.
摘要:
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.
摘要:
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.