Zf Lemf&ouml;rder Metallwaren Ag

Lemforder Metallwaren Ag

Other

Frank Meyerink

Andreas Vossel

Metin Ersoy

Ernst-Gunter Jordens

Klaus Kramer

Joachim H&uuml;necke

A rubber bearing with axial damping includes a multipart bearing inner part ( ), an elastomer ( &prime;), which surrounds the bearing inner part ( ) in some sections and is connected thereto by vulcanization, chambers ( &prime;) for accommodating a damping agent, a channel carrier ( ) with at least one damping agent channel ( ), which makes possible the circulation of the damping agent between the chambers ( ), as well as an essentially cylindrical bearing sleeve ( ), which accommodates the above-mentioned bearing parts. The bearing inner part ( ) has a section ( ) of increased diameter compared with a middle area ( ) of the bearing inner part ( ) at the respective axial ends of the bearing. A channel carrier ( ) with chambers &prime; for the damping agent is arranged between the sections ( ) of increased diameter of the bearing inner part ( ). The channel carrier ( ) comprises an inner sleeve ( ), an elastomer ( ) connected to the inner sleeve by vulcanization and a channel ring ( ), which surrounds the inner sleeve ( ) and the elastomer and is likewise connected to them by vulcanization. At least one groove, which forms at least one channel ( ) between the channel ring ( ) and the bearing sleeve , is milled into the outer contour of the channel ring ( ). The chambers ( &prime;) are formed in the channel carrier ( ) and the chambers ( ) are formed during the mounting of the bearing between the channel part ( ) and the sections ( ) of increased diameter of the bearing inner part ( ) in the vicinity of the axial ends of the bearing are connected to one another via the channel ( ).

Rubber bearing having axial damping

A controllable hydraulic bearing, especially for motor vehicles, with a working chamber and an equalizing chamber arranged annularly around the working chamber. The chambers are filled with an electrorheological fluid and are connected to one another via an annular gap-like overflow channel. The overflow channel has two mutually opposite electrodes for generating a high-voltage field in the overflow channel. The overflow channel ( ) extends helically in its longitudinal extension around the said working chamber ( ) between the working chamber ( ) and the equalizing chamber. The wall of the overflow chamber ( ) comprises an electrically insulating carrier layer provided on both sides with conductive cover layers forming electrodes.

Controllable anti-vibration mounting, notably for motor vehicles

A hydraulically damping rubber is provided with an uncoupling element. The bearing has an elastomer arranged between an essentially cylindrical inner part and a cylindrical outer sleeve and connected to the inner part by vulcanization. The hydraulically damping rubber bearing has chambers for receiving a damping agent. The chambers are connected by at least one channel arranged in a channel carrier. The uncoupling element is provided for uncoupling the damping action caused by the circulation of the damping agent in the channel or channels against forces of low exciting amplitude introduced into the bearing. The uncoupling element is a separate component from the hydraulically damping rubber bearing, arranged in a recess in a channel carrier space of the bearing. The uncoupling element includes a frame with a membrane fixed in a freely vibrating manner in or on the frame and a radial distance is assigned to the membrane between the channel carrier and the outer sleeve of the bearing, so that a radially directed movement of the membrane is possible.

Hydraulically damping rubber bearing with uncoupling element

A rubber bearing with radical travel limitation and with a damping agent channel has an inner part with a tubular inner contour, an elastomer surrounding the inner part and connected thereto by vulcanization, and a channel carrier. The channel carrier is made of one or more plastic parts and surrounds the elastomer in some sections and is supported on the elastomer via support elements. Stop surfaces for the radial travel limitation are provided on the inside of the channel carrier. At least one damping agent channel, which connects chambers formed between the elastomer and the channel carrier for receiving a liquid damping agent, is integrated in the outer surface of the channel carrier. In the area of the chambers ( ), the channel carrier ( ) has recesses ( ) for the discharge and the entry of damping agent. The recesses ( ), connected to one another by the damping agent channel ( ), are arranged on the circumference of the channel carrier ( ) in the area of the support elements ( ) and opposite the same. Depressions ( ), for enclosing damping agent during the coming into contact of the elastomer ( ) with the corresponding stop surface ( ) as a consequence of an inward deflection of the bearing brought about by a radially introduced force, are provided on the inner contour of the channel carrier ( ) and/or on the outer contour of the elastomer ( ) in the area of the stop surfaces ( ).

Rubber bearing with radial travel limitation and damping agent channel

A sleeve-type rubber shock absorber with hydraulic damping for mounts in motor vehicles includes an inner mounting sleeve (1), an outer mounting sleeve (2) surrounding same at a radially spaced location, at least one elastomer body (3), which is adheringly arranged between the two mounting sleeves and forms at least one chamber (4) filled with hydraulic damping agent. A cap (5) sealingly closes the sleeve-type rubber shock absorber, forming a second chamber (6). A channel plate (7) is provided which contains a throttle channel (7.1) connecting the chambers (4 and 6), wherein the outer bearing sleeve (2) has at least two different external diameters, of which the mainly radially loaded area of the smaller diameter is inserted into the motor vehicle component (8). At least two stop buffers (9) are arranged distributed over the circumference and are provided on the corresponding area of the inner mounting sleeve (1). The area of the larger diameter contains the chambers (4, 6), which are separated by the channel plate (7) and are filled with damping agent. The preferably two-part channel plate (7) has a support part (7.2) with the throttle channel (7.1) as well as a cover (7.3) closing same. The support part (7.2) is made in one piece with a diaphragm (7.4), whose radially inner area is sealingly inserted into a complementary mount of the inner mounting sleeve (1).

Sleeve-type rubber shock absorber with hydraulic damping

An engine mount with hydraulic damping for motor vehicles which has at least two chambers, which are provided with at least partially elastically deformable walls in a housing and are filled with a damping fluid. A common valve plate is between the chambers. An uncoupling membrane of an elastic material is arranged in a cage structure with openings. The edge of the uncoupling membrane is inserted radially movably with a gentle pretension or clamping force in a recess between two disks of the valve plate, which are designed as a cage, wherein at least one of these openings is continued radially to the edge of the uncoupling membrane.

Growing community of inventors

Lohne, Germany

Frank Meyerink