Karsus Intercity
The K147 & K146 railway shock absorbers
The most typical needs of railway vehicle operators these days is to develop high speed railway lines and to purchase high speed vehicles associated with them. Thus, demand on behalf of railway vehicle manufacturers has grown for rail car shock absorbers which are able to resist the extreme stresses accompanying high speed travel reliably on the long term and to provide appropriate comfort to passengers. Our company developed the product lines K146 and K147 for rail car shock absorbers to meet these requirements.
The development of the K147 system took place in parallel with that of the K146 line. The design aim was to create a modern valve controlled architecture which is suitable to produce shock absorbers with sway control properties (K146) and to attenuate the oscillation of primary and secondary suspension system elements (K147). Damping force of the product line K147 can be adjusted in a wide range and hence, almost any needs can be met by it.
Key features:
- Damping force adjustable in a wide range
- Damping force adjustable irrespective of the direction of stress
- Applicable in high speed (>250km/h) vehicles
- Mountable, recyclable design
- No metallic contact between friction elements
- Increased amount of oil for efficiency
- Double anti-dust protection
- Custom built valve design developed by Kárászy Kft.
Due to the increased oil volume the warming up of the shock absorber is slowed down, therefore the useful lifetime of the oil will be extended which means operational safety on the long run. Since safe running stability of railway vehicles travelling at a high speed can only be ensured with the use of appropriate shock absorbers, our company developed the product lines K146 and K147.
Engineering details:
K147
Maximum damping force at a speed of 0.1 m/s: 12 kN
Diameter of dust protector tube/shock absorber casing: Ø 90 mm / Ø 80 mm
K146
Maximum damping force at a speed of 0.1 m/s: 20 kN
Diameter of dust protector tube/shock absorber casing: Ø 110 mm / Ø 100 mm
