Pressure control valve device

摘要

A pressure-control valve device for a fluid, having at least one inlet area and first and second outlet areas that can be flow-connected to one another by two seat valves coupled to one another, in which a fluid flow from the inlet area to the first and second outlet areas can be adjusted by the first seat valve and a fluid flow between the first and second outlet areas can be adjusted by the second seat valve. The first seat valve is designed as a valve aperture with a valve opening and a valve control edge and with a ball-shaped closing element that co-operates with the valve control edge. The valve opening and the ball-shaped closing element are designed such that the ratio of the diameter of the valve opening to the diameter of the ball-shaped closing element is equal to at least 0.75.

主权项

1. A pressure-control valve device (10) for a fluid comprising at least one inlet area (P) and a first and a second outlet area (A, T), which are flow-connectable with one another by first and second seat valves (23, 24) being coupled to one another,
a fluid inflow from the inlet area (P) to the first and the second outlet areas (A, T) being adjustable by the first seat valve (23) and a fluid outflow between the first and the second outlet areas (A, T) being adjustable by the second seat valve (24), the first seat valve (23) being formed as a valve aperture (232), with a valve opening (234) and a valve control edge (233) and a ball-shaped closing element (231) co-operating with the valve control edge (233), a ratio (DV/DK) of a diameter (DV) of the valve opening (234) to a diameter (DK) of the ball-shaped closing element (231) being equal to or greater than 0.75, an upstream flow guiding device (26), by which a twisting motion is imparted to incoming fluid in an area of the first seat valve (23), is arranged upstream of the first seat valve (23) in the inlet area (P), and a downstream flow guiding device (28) being arranged upstream of the second seat valve (24) and downstream of the first seat valve (23), along the flow between the first and the second outlet areas (A, T), and the downstream flow guiding device (28) is designed such that, in an area of the second flow valve (24), a twisting motion is imparted to the fluid flowing to the second outlet area (T).