Vibration dampers, especially damping-adjustable shock absorbers for motor vehicles
A vibration damper and damping technology, which is applied in the direction of shock absorbers, shock absorbers, mechanical equipment, etc., and can solve the problem of large axial structural space of the piston
Active Publication Date: 2021-05-25
FORD GLOBAL TECH LLC
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Problems solved by technology
However, the disadvantage of using the known piston-cylinder arrangement is that the piston requires a relatively large axial construction space
Method used
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Embodiment Construction
[0022] figure 1 An exemplary embodiment of a vibration damper 1 according to the invention—in the present case the main structure of a damping adjustable shock absorber 1 for a motor vehicle—is schematically depicted in a partial cross-sectional view. The shock absorber 1 has a piston 3 which is guided inside a cylinder 2 and is axially movable therein. A piston 3 is attached to a piston rod 4 and divides the cylinder 2 into a first chamber 5 and a second chamber 6 . Chambers 5 and 6 are filled with a damping fluid such as oil.
[0023] as from figure 1 As seen in , the sealing ring 7 is fixedly installed on the outer peripheral surface of the piston 3 . This allows the piston 3 to slide axially within the cylinder 2 . In addition to supporting sliding, the sealing ring 7 also prevents an unwanted flow of damping fluid between the inner wall of the cylinder 2 and the outer peripheral surface of the piston 3 .
[0024] Furthermore, annular spring packs 10 and 11 are respec...
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The invention relates to a vibration damper, in particular a damping adjustable shock absorber for a motor vehicle, comprising a cylinder guided inside a cylinder (2) and axially displaceable therein and attached to a piston rod (4) a piston (3), which divides the cylinder (2) into a first chamber (5) and a second chamber (6), and provides a connection through which the damping fluid in the chambers (5, 6) can flow Channels (13, 14, 15) connecting channels from the face (8) of the piston (3) facing the first chamber (5) to the opposite side of the piston (3) facing the second chamber (6) Face (9) extends. Furthermore, the vibration damper comprises at least one adjusting element (18), which is rotatably parallel to the faces (8, 9) of the piston (3) and which is assigned to at least one connecting channel (15) and which is passed through the The flow cross-section of each assigned connecting channel (15) can be modified by the rotation of the adjustment element, wherein the adjustment element (18) has a contact surface, which is located in the two faces (8) On one and through said contact surface, the opening passes through at least one continuous hole (20) firstly towards said face (8) and secondly towards the corresponding chamber (5), wherein at a first rotation of the adjustment element (18) position, the front opening of the continuous hole (20) does not overlap with the front opening of the connecting channel (15) of the piston (3) on the adjustment element (18), and in the second rotational position of the adjustment The frontal openings of the connecting channels (15) of the piston (3) on the element (18) have a complete overlap.
Description
technical field [0001] The invention relates to a vibration damper, in particular to a damping adjustable shock absorber for motor vehicles. Background technique [0002] In general, modern motor vehicles include wheel suspensions with an arrangement of springs and dampers configured to prevent or dampen the transmission of vibrations from the wheels to the vehicle superstructure due to road surface irregularities. To this end, a typical vibration damper or shock absorber usually includes a cylinder filled with a fluid, such as oil. The piston is guided inside the cylinder and is axially movable therein. The piston is attached to a piston rod protruding from the cylinder and is connected to a wheel suspension or part of the vehicle superstructure. The cylinders are correspondingly connected to other vehicle components, namely the vehicle superstructure or the wheel suspension. [0003] The piston divides the cylinder into a first chamber and a second chamber. The piston ...
Claims
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Login to View More IPC IPC(8): F16F9/49
CPCF16F9/467
Inventor 弗雷德里克·彼得·沃尔夫-蒙海姆
Owner FORD GLOBAL TECH LLC