Shock absorber with amplitude damping
AssigneeThyssenkrupp Bilstein GmbH
InventorsAndreas Nevoigt, Steffen Lang
Life of this patent
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Abstract
For a device for the amplitude-dependent absorption of shocks, especially of the wheel of a vehicle, with at least one working piston (3), which is disposed within an absorbing housing (1) and connected with a piston rod (2) and divides the absorbing housing (1) into two absorbing spaces (4, 5) and interacts with a hydraulic element, which is disposed in parallel for affecting small amplitudes and has a space (15) with a dividing element, the space (15) being tied in with hydraulic tie-ins with the absorbing spaces (4, 5), the greatest possible absence of wear and a soft response of the working piston are to be achieved. For this purpose, it is proposed that the dividing element consists of a foamed, elastic material.
Claims24
A device for amplitude-dependent absorption of shocks of a wheel of a vehicle, said device comprising:
- at least one working piston within an absorbing housing;
- a piston rod connected to said piston, said piston dividing said absorbing housing into two absorbing spaces;
- and
- a hydraulic element interacting with said piston in parallel for affecting small amplitudes;
- wherein,
- said hydraulic element has a space with a dividing element, said space being associated via hydraulic means with said absorbing spaces;
- said dividing element comprises foamed elastic material, and fills said space substantially completely when not in a compressed state or slightly compressed state;
- elastic deformation of said foamed elastic material produces damping of vibrations with small amplitudes;
- said space is divided into two partial spaces by a solid dividing disk, with a separate dividing element in each of said partial spaces;
- one of said partial spaces is connected with an upper one of said absorbing spaces;
- the other of said partial spaces is connected with a lower one of said absorbing spaces;
- and
- said dividing disk is immovable in an axial direction of said piston rod.
A device for amplitude-dependent absorption of shocks of a wheel of a vehicle, said device comprising:
- at least one working piston within an absorbing housing;
- a piston rod connected to said piston, said piston dividing said absorbing housing into two absorbing spaces;
- and
- hydraulic element interacting with said piston in parallel for affecting small amplitudes;
- wherein
- said hydraulic element has a space with a dividing element, said space being associated via hydraulic means with said absorbing spaces;
- said dividing element comprises foamed elastic material, and fills said space substantially completely when not in a compressed state or slightly compressed state;
- elastic deformation of said foamed elastic material produces damping of vibrations with small amplitudes;
- said space is divided into two partial spaces by an element of circular cross-section inserted axially stationary in a cavity of said piston rod;
- each partial space has a separate dividing element;
- and
- hydraulic means are provided for connecting one partial space to one of said absorbing spaces and for connecting the other partial space to the other one of said absorbing spaces;
- and
- said element of circular cross-section is immovable in an axial direction of said piston rod.
Dependencies are inferred from the claim text.