Change-over valve, preferably for a railway vehicle

Details Change-over valve, preferably for a railway vehicle Change-over valve, preferably for a railway vehicle

F - Mech Eng,Light,Heat,Weapons

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F16K 1/00 (2006.01) B60T 8/18 (2006.01) F16K 31/00 (2006.01)

Patent

CA 1089840

ABSTRACT OF THE DISCLOSURE This invention relates to a change-over valve (or a so called empty-load valve), preferably for a railway vehicle, having a valve device opening or closing a pneumatic passageway depending on the position of a mechanical operating system or in other words the load on the vehicle. In order to improve the working range of the external operating arm and the exactness of the change- over point the operating system is a force transmitting chain from said operating arm to the valve device via a spring, a knee lever and a valve operating rod in such a geometrical way that the axis of the spring is substantially perpendicular to the valve operat- ing rod.

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