Patent ID: 11938910
Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. A non-return valve device, comprising:
at least one part of a flow channel for a fluid;
a movable cord-shaped sealing element arranged in the flow channel, wherein
the sealing element is configured so as to be movable between first and second surfaces without at least partially being fixed to the first and second surfaces and so as to be moved movable at least partially between a closed position and an open position, wherein at least the first surface forms a part of the at least one part of the flow channel, wherein first and second sealing edges, which limit movement of the sealing element, extend between the first and second surfaces at an angle or perpendicularly with respect to a movement direction of the sealing element, wherein the first and second sealing edges have first and second heights respectively, wherein the first height is greater than the second height, wherein the second height is less than half of a height of a bypass channel defined between the second sealing edge and the first surface, and wherein the first sealing edge is positioned closer to the first surface than the second sealing edge, wherein
in the open position, a fluid flow is permitted through the flow channel, and
in the closed position, the fluid flow through the flow channel is blocked by form-fitting engagement between with the sealing element, the second sealing edge and the first surface.