Knorr-bremse Systeme F&uuml;r Schienenfahrzeuge Gmbh

Philippe Berra

Herv&eacute; Gumez

A spring brake cylinder having an emergency release device, particularly for rail vehicles, comprising: a housing; a spring piston for operating and releasing a spring brake; a normally locked, not self-locking threaded screw drive; an outer-radial sliding surface having a detent flank, the outer-radial sliding surface being an element of a rotatable part of the threaded screw drive, and the threaded screw drive having a pitch dimensioned such that the rotatable part carries out less than a complete rotation along its maximal axial adjusting stroke, and the detent flank being configured for locking the emergency release device; and a latch for interacting in a form-locking manner with the detent flank to lock the emergency release device, and for releasing the spring brake in the absence of a release pressure medium and thereby permitting axial movement of the spring piston.

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Pau, France

Philippe Berra