Patent ID: 8672293
Filing Date: 2014-03-18
Classification: F16K

Abstract:
1. Vacuum valve comprising: a wall with a valve opening that is surrounded by a valve seat, at least one valve plate is arranged in a vacuum region of the vacuum valve and is adjustable from an open position in which the valve opening is open in a longitudinal direction, into an intermediate position in which the valve plate covers the valve opening but is lifted from the valve seat, and from the intermediate position the valve plate is adjustable in a transverse direction at a right angle to the longitudinal direction into a closed position in which the valve plate is pressed onto the valve seat and closes the valve opening, at least one valve rod carries the valve plate and is guided out from the vacuum region of the vacuum valve and is displaceable relative to the wall in the longitudinal direction lying parallel to the longitudinal axis of the valve rod, and also can be displaced parallel and relative to the wall in the transverse direction, a longitudinal drive device is arranged outside of the vacuum region of the vacuum valve by which the valve rod can be displaced in the longitudinal direction for adjusting the valve plate between the open position and the intermediate position, and a transverse drive device is arranged outside of the vacuum region of the vacuum valve by which the valve rod can be displaced parallel and in the transverse direction for adjusting the valve plate between the intermediate position and the closed position, a bearing unit lies outside of the vacuum region of the vacuum valve and is connected rigidly to the wall by which a guide unit that guides the valve rod displaceable in the longitudinal direction is guided in a displaceable manner in the transverse direction, and in the closed position of the valve plate, a section of the valve rod is supported on a transverse stop, and said section projects from the guide unit on a side facing away from the valve plate.