S-class W202 Mercedes

1993-2000 of release

Repair and car operation

Shock-absorbers on a design share on two main types: two-trumpet and one-trumpet shock-absorbers.

One-trumpet shock-absorber:

1. Atmospheric pressure.

2. The valve regulating resistance to compression.

3. The valve regulating resistance to stretching.

4. Perepusknye of the valve.

Two-trumpet shock-absorber

1. Atmospheric pressure.

2. Reserve chamber.

3. Base однотрубна system.

Damper – the additional weight which provides a pruzhinistost and muffles vehicle fluctuations. The damper assimilates fluctuations of the main system, that is, the main system stops to vibrate – movement is limited to the vibration absorber. Dampers minimize case movements. As a dempferny element it can be used; as liquid – (oil shock-absorbers), and gas (gas shock-absorbers).

The one-trumpet shock-absorber is characterized by high degree of reliability, low sensitivity to overloads, noncriticality to the provision of installation. It is necessary to refer dependence of extent of clearing on compression parameters (which in the last development compensate installation of additional perepuskny valves in the piston) to shortcomings and that the one-trumpet shock-absorber is the shock-absorber of long type.

The two-trumpet shock-absorber is technologically known as atmospheric type of a double pipe working at low pressure.

Advantages: insensitive to external damages. Here, unlike the one-trumpet shock-absorber, mechanical influences can be accepted and the external pipe, verified position of the machine is limited to area of a design of a body. It is short type of the shock-absorber as the chamber of balance is located behind the working cylinder.

Shortcomings: the shock-absorber is sensitive to an overload (damping stops). Only certain provisions of installation, precision accuracy of coordination of diameters of pipes are possible.

Characteristics of damping grow out of total function of damping of an opening and the valve loaded by a spring which closes the channel; the spring answers pressure, increasing a free aperture of an opening of an exit. The opening of the piston and a spring can specially adapt to provide linearity and softness of function of clearing. The internal mechanism of regulation is used to receive some performance data for the separate shock-absorber. Values of extent of compression – it is frequent only 30... 50 % from ability of return.

Shock-absorbers with the electronic and adjustable characteristic (active completion) are used to expand a range of comfort of movement and to increase safety. In damping management in parameters, on the other hand, leads to communication establishment between comfort and safety.