Fluid-operated supporting arrangement and a conduit breakage safety device

A conduit breakage safety device, particularly for a mechanism having a plurality of fluid-operated elements, a further fluid element, and a plurality of pairs of connecting conduits arranged so that each pair of connecting conduits connects each of the fluid-operated elements with the further fluid element, the safety device comprising means forming two separate passages each separately communicating a respective one of the two connecting conduits of each of the pairs of connecting conduits with the further fluid element;

• and two pressure-controlled closing members each arranged to close a respective one of said passages.

A fluid-operated supporting arrangement for at least one wheel element of a travelling mechanism comprising at least one fluid-operated supporting element arranged to support said at least one wheel element;

• a further fluid element;
• at least one pair of connecting conduits arranged so that said pair of connecting conduits connects said at least one supporting element with said further fluid element so as to equalize upward movements of said at least one wheel element;
• and a plurality of safety elements one of which being associated to said supporting element and another one of which being associated with said further fluid element, said safety elements being arranged to act in response to breaking one of the connecting conduits of said pair of connecting conduits, the connecting conduits of said pair of connecting conduits being open separately in said further fluid element, and each of said safety elements including two pressure-controlled closing members each arranged to close a respective one of the connecting conduits of the pair of connecting conduits.

A fluid-operated supporting arrangement having several hydraulic and/or pneumatic supporting elements such as, in particular, piston-in-cylinder units, each supporting individual wheels or sets of wheels, wherein the supporting elements are connected together in groups and/or with a fluid accummulator via pairs of connecting conduits, each of the pairs of connecting conduits connecting the supporting elements to each other and/or to the fluid accumulator, so as to compensate for upwards movements of the individual wheels, and wherein the pairs of connecting conduits are protected near to the supporting elements and/or said accumulator by line breakage safety elements which respond to line breakages, wherein each conduit of said pair of connecting conduits opens separately from the other into the associated supporting element and/or the accumulator and can be closed off there by its own pressure controlled closure member disposed in a respective one of the line breakage safety elements so as to prevent the failure of the fluid-operated supporting arrangement by closing off only the conduit of the pair of connecting conduits that is severed while leaving the other conduit of the pair of connecting conduits that is not severed, operational to compensate for the several conduit and thus preventing fluid pressure lose in the fluid-operated supporting arrangement.