Bogies TRIZ Cases

Mounting a bogie stepladder on the unsprung plane reduces structural gauge violations and increases installation space.

Compressed elastic walls seal the widening gap between plate springs and pressing members, preventing foreign matter entry while simplifying assembly.

Anti-roll valves isolate air bellows from auxiliary volumes to increase vertical stiffness, resolving roll stability issues during curve negotiation.

Pivotal transom bearing decouples lateral track displacement irregularities from the bolster, preventing wheelset yawing and maintaining alignment stability.

Integrating traction force transmission into rotational buffer devices reduces component count within rail vehicle running gear assemblies.

A nested rubber-metal spring inside the helical coil reduces track loads while maintaining high transverse stability for rail vehicles.

Centered rubbing plates transfer carbody weight to cross beams, preventing biased lateral loads and reducing bending stress on the bogie frame.

Multi-section rubber backstop shares vertical loads through progressive stiffness, preventing steel spring breakage under changing locomotive pressure.

Connector assemblies apply opposing forces to minimize truck hunting and warping while improving high-speed stability.

Segmented primary springs and movable frame parts reduce non-sprung mass while improving derailment safety.

Elastomeric adapter pad manages strain to maintain hunting threshold speeds while reducing curving forces.

An integrated anti-roll torsion bar inside the FRP spring volume frees installation space for drives while maintaining suspension strength.