Valve device
AssigneeGEA Tuchenhagen GmbH
InventorsJens Burmester, Stephan Dirks
Life of this patent
Estimating the term…
Abstract
A valve device, in particular a lifting valve device, includes a housing, a valve seat, and a movable closing body that can be brought into an open position in an opening movement and into a closed position in a closing movement. In the closed position, the closing body and the valve seat are in sealing contact. The valve device also includes a piston to which a pressure medium can be applied and that is received in a cylinder. To improve hygienic properties, it is proposed that the cylinder is part of the closing body.
Claims19
A valve device, in particular a lifting valve device, comprising:
- a housing;
- a valve seat;
- a movable closing body that can be brought into an open position in an opening movement and into a closed position in a closing movement along a stroke axis, wherein in the closed position the closing body and the valve seat are in sealing contact;
- an annular channel surrounding the closing body and arranged between a housing part and the closing body;
- from the annular channel to a connection, a choke gap is formed between the housing part and the closing body;
- and
- a piston to which a pressure medium can be applied and that is received in a cylinder, wherein the cylinder is part of the closing body,
- wherein the connection has a longitudinal axis that is different from the stroke axis, and
- wherein an end face of the closing body is designed to be aligned with an inner wall of the connection.
A valve device, in particular a lifting valve device, comprising:
- a housing;
- a valve seat;
- a movable closing body that can be brought into an open position in an opening movement and into a closed position in a closing movement, wherein in the closed position the closing body and the valve seat are in sealing contact;
- and
- a piston to which a pressure medium can be applied and that is received in a cylinder, wherein the cylinder is part of the closing body,
- wherein the closing body extends through a housing part, and a first sliding bearing and a second sliding bearing are arranged at opposite ends of the housing part.
A valve device, in particular a lifting valve device, comprising:
- a housing;
- a valve seat;
- a movable closing body that can be brought into an open position in an opening movement and into a closed position in a closing movement, wherein in the closed position the closing body and the valve seat are in sealing contact;
- and
- a piston to which a pressure medium can be applied and that is received in a cylinder, wherein the cylinder is part of the closing body,
- wherein the piston is connected to an inner hollow rod that accommodates an air channel that passes through the inner hollow rod and the piston and that is connected to a first pressure chamber surrounded by the piston and the cylinder, and
- wherein the closing body extends through a housing part, and a first sliding bearing and a second sliding bearing are arranged at opposite ends of the housing part.
Dependencies are inferred from the claim text.