Check valve arrangement
AssigneeContinental Teves, Inc.
InventorMichael James Cunningham
Life of this patent
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Abstract
A check valve arrangement utilizes a disc (15) for a valve member while eliminating the need for a ball. A valve seat in the common sense is unnecessary, too. Instead, a substantially flat surface (13) interacts with the disc (15). In order to allow unidirectional flow only, the disc (15) is biased toward the surface (13) by means of an elastic bias ring (17) which itself is held in place by a retainer (6) extending through the center hole (16) of the disc (15) and thereby axially guiding the disc (15). If desired, the flat surface (13) can be supplemented with an embedded sealing ring 18 to provide optimum sealing properties without precise machining of the surface (13). By designing the disc (15) and the retainer (6) in rotational symmetry, a directional adjustment of the parts is made unnecessary.
Claims6
A check valve arrangement comprising:
- a housing with a substantially flat surface area;
- at least one-channel with an opening in the substantially flat surface area;
- a disc having a center hole and covering the channel opening;
- a retainer having a first portion extending through the center hole and disposed within the housing and having a second portion formed as a rim with a diameter larger than the center hole and positioned at a distance from the housing greater than the thickness of the disc;
- and
- a bias ring positioned between the rim and the disc and biasing the disc toward the housing.
Dependencies are inferred from the claim text.