Method and a device for reducing the gap between a static...

Details Method and a device for reducing the gap between a static... Method and a device for reducing the gap between a static...

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 27/00 (2006.01) F04C 29/00 (2006.01) F04D 19/04 (2006.01) F16J 15/40 (2006.01)

Patent

CA 2150828

A process and device are disclosed for reducing the gap between a static part (2) and a movable part (1). A gas compatible with the working media of the installation is at first and temporarily introduced into the area of the gap, where it precipitates and transforms into ice (5) because of the presence of a cooling channel (4) in the area of the gap. This process may be applied both to mechanical pumps and to valves; in the case of the latter, the ice layer is compressed when the valve is closed.

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