OPENTECHNICAL PUBLICATION
OT-2026-000003117

Switch-over device

Published: 2026-09-15T19:32:38.391886Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003117
Categories: Tools & Tooling > Clamping Tools

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ABSTRACT

A switch-over device which is useful for a gas insufflation device using
liquid gas includes at least two inflow channels each blockable by a valve and
at least one outflow channel for alternate removal of a fluid medium from a
plurality of containers. The device has a switch-over piston movably mounted
in a housing and comprising a base member which has at each end a valve
closure member in a form of a body of rotation. The switch-over piston is
driven by a pressure difference between the fluid media and connects one of
the inflow channels to the outflow channel in each of two switching positions.
A working chamber accommodates the switch-over piston, with sealing elements
being provided for closing off the inflow channels in a pressure tight manner
when the switch-over piston is in the correspondingly closed position and for
dividing the working chamber into two portions sealed off from each other. The
switch-over piston and/or the working chamber is constructed so that at least
one sealing element can be arranged selectively in different positions. The
size of the areas of the switch-over piston which are acted upon by the fluid
media and determined the switch-over point is determined by the position of
the sealing element.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.

[0006] Sheet 6.

[0007] Sheet 7.

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OpenTechnical publication OT-2026-000003117
Published 2026-09-15T19:32:38.391886Z
https://opentechnical.org/p/OT-2026-000003117