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US 10,647,562 B2Granted
Filling valve
AssigneeKHS GmbH
InventorsLudwig Clüsserath, Max Stolz, Manfred Härtel, Dieter-Rudolf Krulitsch
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AssigneeKHS GmbH
InventorsLudwig Clüsserath, Max Stolz, Manfred Härtel, Dieter-Rudolf Krulitsch
Estimating the term…
A filling valve includes a valve seat, an axially-movable valve tappet extending through the valve seat and having an axial portion that defines a product-delivery space through which filling product flows, and axially-displaced first and second seal-seats disposed so that liquid product flows from the first seal-set, through the product-delivery space, to the second seal-seat and out through an outlet. The first seal-seat and the second seal-seat are arranged on the valve tappet in such a way that, in response to a closing movement of the valve tappet, the first seal-seat closes before the second seal-seat, and wherein the first seal-seat, after having been closed as a result of the closing movement, permits further axial movement of the valve tappet to permit closing of the second seal-seat.
An apparatus comprising a filling valve, said filling valve comprising a valve seat, an axially-movable valve tappet extending through said valve seat and having an axial portion that defines a product-delivery space through which filling product flows, first seal-elements that cooperate to form a first seal-seat in response to axial movement of said valve tappet towards an opening of said filling valve, and second seal-elements that cooperate to form a second seal-seat, said second seal-seat being disposed downstream from said first seal-seat at an outlet end of said filling valve so that liquid product flows from said first seal-seat, through said product-delivery space, to said second seal-seat, wherein said first seal-elements comprise an elastic seal-element disposed to be deformed by axial movement of said valve tappet following formation of said first seal-seat, wherein said first seal-seat and said second seal-seat are fixed to said valve tappet in such a way that, in response to a closing movement of said valve tappet, said first seal-seat closes before said second seal-seat, and wherein said first seal-seat, after having been closed as a result of said closing movement, permits further axial movement of said valve tappet to permit closing of said second seal-seat.
A method for using an apparatus for filling a container with a liquid-filling product, wherein said apparatus comprises a filling valve, said filling valve comprising a valve seat, an axially-movable valve tappet extending through said valve seat and having an axial portion that defines a product-delivery space through which filling product flows, first seal-elements that cooperate to form a first seal-seat, and second seal-elements that cooperate to form a second seal-seat, said second seal-seat being disposed downstream from said first seal-seat at an outlet end of said filling valve so that liquid product flows from said first seal-set, through said product-delivery space, to said second seal-seat, wherein said first seal-elements comprise an elastic seal-element disposed to permit deformation in response to axial movement of said valve tappet, wherein said first seal-seat and said second seal-seat are fixed to said valve tappet in such a way that, in response to a closing movement of said valve tappet, said first seal-seat closes before said second seal-seat, and wherein said first seal-seat, after having been closed as a result of said closing movement, permits further axial movement of said valve tappet to permit closing of said second seal-seat, wherein said method comprises delivering said liquid filling-product to said filling valve, moving said valve tappet along an axial direction of said filling valve to thereby cause first and second seal-seats thereof to undergo a state transition at times separated by a time delay, said state transition being selected from the group consisting of a transition from an open state to a closed state and a transition from a closed state to an open state.
An apparatus comprising a filling valve of a filling device for filling products containing a liquid, comprising at least one valve tappet, which is arranged in a valve seat in an axially movable manner, wherein an axial portion is formed between the valve seat and valve tappet, in which the product flows to a second seal seat that is formed at an outlet end of the filling valve, in which filling valve a first valve seat, connected to the axial portion, is fixed upstream of the second seal seat in the flow direction, said first seal seat comprising sealing elements that interact with one another, wherein the first seal seat and second seal seat are arranged at the valve tappet in such a way that the first seal seat closes before the second seal seat during a closing movement of the valve tappet, wherein the first seal seat, after the closing, allows for a further axial movement of the valve tappet in the closing direction until the second seal seat is closed, wherein at least one of the sealing elements is elastic, and in the actuation direction allows for a deformation in the size of the further axial movement of the valve tappet.
Dependencies are inferred from the claim text.