Zf Friedrichshafen Ag

Svm Schultz Verwaltungs-Gmbh Co. Kg

Frank Hamma

Karlheinz Mayr

Helmut Mang

Hubert Remmlinger

Georg Scherer

Markus Moosmann

Florian Schreiber

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.

Pressure control valve device

A valve device having at least one inflow area and first and second outflow areas, which are connected with one another with regard to the flow through two poppet valves. Through the first poppet valve, a fluid inflow from the inflow area to the first and second outflow areas can be adjusted and a fluid outflow, through the second poppet valve between the first and the second outflow areas can be adjusted. The second poppet valve is designed as a cone poppet valve with a cone shaped closure body. Located upstream of the second poppet valve, between the first and the second outflow area, is a flow guide device which is designed to provide the fluid, which flows in the direction of the second poppet valve, with a swirl. The closure body of the second poppet valve has a cone angle of 60&#xb0;+/&#x2212;10&#xb0;.

Valve device with a flow guiding device

A pressure control valve unit () for a fluid with at least one inlet area (P) and first and second outlet areas (A, T) which can be connected for fluid flow with one another by two mutually coupled seat valves (). An incoming fluid flow, from the inlet area (P) to the first and second outlet areas (A, T), can be adjusted by way of the first seat valve (), and a fluid outflow, between the first and second outlet areas (A,T), can be adjusted by way of the second seat valve (). In this case, a flow-guiding device () is arranged, upstream from the first seat valve () in the inlet area (P), and imposes a specific flow characteristic upon the inflowing fluid in the area of the first seat valve ().

Pressure control valve apparatus having a flow-guiding device

A pressure control valve device with at least one inlet area and first and second outlet areas which can be connected by two poppet valves. A flow guide device (), with inflow and outflow areas () for guiding the fluid flowing from the inlet area in a defined manner in the direction of the second poppet valve, is located upstream of the second poppet valve, between the first and second outlet areas. The fluid in the flow guide device () passes in the area between the inflow and outflow areas () through a plurality of channel areas distributed around the periphery of the flow guide device () and separated from one another, which are shaped at least approximately helically and impart an at least approximately vortex-like flow pattern to the fluid flowing in the direction of the second poppet valve downstream of the outflow area ().

Growing community of inventors

Oberteuringen, Germany

Frank Hamma