Dual, coupled check valve for direct drive, reversible power...

F - Mech Eng,Light,Heat,Weapons – 15 – B

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F15B 7/00 (2006.01) F15B 7/10 (2006.01) F15B 11/08 (2006.01) F15B 13/01 (2006.01)

Patent

CA 2519469

An invented dual, coupled check valve mechanism is described for a direct drive, reversible hydraulic power source for hydraulic circuits that includes a manifold hydraulically coupled to the respective input/output ports and a reservoir of the hydraulic power source defining a translation passageway having mid-passage drain hydraulically coupled to the reservoir, where each end of the translation passageway has an angled annular valve seat opening to larger diameter plenum containing a check valve ball. A translating rod with a length greater and a circumferential diameter less than that of the translation passageway located in the translation passageway prevents the respective check valve balls from simultaneously seating on the valve seats at the respective ends of the translation passage way.

La présente invention a trait à un mécanisme de clapet de non-retour double couplé pour source d'alimentation hydraulique réversible pour circuits hydrauliques comportant un collecteur en liaison hydraulique avec des orifices entrée/sortie respectifs et un réservoir de source d'énergie hydraulique définissant un passage de translation présentant un drain intermédiaire en liaison hydraulique avec le réservoir, dans lequel chaque extrémité du passage de translation comporte un siège de clapet annulaire incliné ouvert vers un plénum de plus grand diamètre contenant une bille de clapet de non-retour. Une tige de translation de longueur supérieure et de diamètre circonférentiel inférieur à ceux du passage de translation située dans le passage de translation empêche l'assise simultanée des billes de clapet de non retour respectives sur les sièges aux extrémité respectives du passage de translation.

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