Danfoss A/s

Sauer Danfoss Aps

Danfoss Fluid Power A/s

Richard Thomas Entwistle

Welm Friedrichsen

Tom Tychsen

Erik Haugaard

Hardy Peter Jepsen

Carl Christian Dixen

Steve Crow

Bo Slashedrge Duus

Anders Bladt

Ib Damgaard

The invention concerns a valve arrangement () with a housing (), an inlet connection () and an outlet connection (), which are connected with each other via a flow path, in which is located a dosing device (), which has a valve seat () and a valve element () interacting with the valve seat (), the valve element () being loaded in the direction of the valve seat () by a resetting device () and being acted upon on the side facing the valve seat () by a pressure in a first pressure chamber (), said pressure corresponding to the pressure in the inlet connection (), when the dosing device () is dosed, and on the side facing away from the valve seat () by the pressure in a second pressure chamber (), which is connected with the outlet connection () via a channel arrangement (), in which is located at least one auxiliary valve (), and with the first pressure chamber () via a throttle (). It is endeavoured to reliably ensure that the closing device () opens. For this purpose, it is provided that the channel arrangement () ends in a suction nozzle arrangement (), which is located in the flow path.

Valve arrangement

The invention concerns a hydraulic steering with a steering motor arrangement having at least one steering motor, and with at least two steering circuits, each having a steering valve that interrupts a path from a pressure supply to the steering motor arrangement in the neutral position and releases a path from the pressure supply to the steering motor arrangement on a movement out of the neutral position. It is endeavored to simplify the embodiment of such a steering. For this purpose, the steering valve () has two end positions, one on each side of the neutral position, in which positions a path from the pressure supply () to the steering motor arrangement () is interrupted.

Hydraulic steering

The invention concerns a valve, particularly a solenoid valve, with an inlet connection and an outlet connection, having between them a shut-off device with a valve seat and a closure member. In such a valve, it is endeavoured to obtain a small output with a simple design. For this purpose, the closure member has a closing element and a tappet separate from the closing element, the closing element being held in a guiding arrangement.

Valve, particularly solenoid valve

The invention relates to a solenoid valve with an inlet connection and an outlet connection, having between them a blocking device with a valve seat, a closure member and an armature, which influences a position of the closure member in relation to the valve seat. It is endeavoured to make a valve with a simple embodiment and little wear. For this purpose, it is ensured that the armature is arranged in a housing, dividing it into two chambers, and that the armature has a movement stroke with several sections, one first section being in the form of an idle stroke, during which a connection between the two chambers is open and the position of the closure member in relation to the valve seat does not change, and a second section being in the form of an effective stroke, during which the connection between the two chambers is closed and the armature causes or permits a movement of the closure member.

Solenoid valve

The invention concerns a hydraulic motor (1) having at least one gearwheel set section (2), a supply section (3) and a front section (4) on which an output arrangement (15) can be fixed, the sections (2 to 4) being connected with each other in the axial direction by fixing bolts (11). It is desired to simplify the production and the service during operation for such a motor. For this purpose several bores (17) are provided, which penetrate the motor (1,) from one axial end (21) to the other, in which connection bolts (6) are arranged, which are provided with an engagement area (18) on the side of the front section (4).

Hydraulic motor

The invention relates to a pump assembly having a pump with reversible and adjustable controls, the pump controls having a neutral nonflow position and varying positions in opposite directions for effecting corresponding varying rates of flow in the opposite directions. The pump controls include a control valve for the adjusting function which is cooperable with resetting apparatus.

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Sydals, Denmark

Richard Thomas Entwistle