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US 12,241,484 B2Granted
Valve
AssigneeHydac Fluidtechnik GmbH
InventorsMarkus Bill, Philipp Hilzendegen, Nicola-Vincenzo Porta
Life of this patent
Estimating the term…
Abstract
A valve, in particular having the form of a 2/2-way seat valve includes a pressure limiting function (28) integrated in a joint valve body to implement a thermal overpressure protection.
Claims14
A 2/2-way seat valve, comprising:
- a joint valve body integrating a pressure limiting function and a thermal overpressure protection;
- an inflow hole and an outflow hole in the valve body;
- a valve piston being coupled to and actuated by a magnetic drive and interconnecting and separating the inflow hole and the outflow hole to and from, respectively, each other in a fluid-conveying manner, the magnetic drive having an armature piston mounted for longitudinal movement in a pole tube, the armature piston being electromechanically operated by an energizable solenoid so as to lift the valve piston off a valve seat in a valve housing being a part of the valve body and so as to open a fluid path from the inflow hole to the outflow hole;
- and
- a linkage part and a control rod being connected to the armature piston and moving the armature piston, the linkage part extending out of a pressurized area of a fluid volume enclosed in the valve housing and in the pole tube, being a further part of the valve body and being coupled to and movable counter to an action of an energy accumulator in the valve body.
2 more elements
A hydraulic system, comprising:
- a 2/2-way seat valve, comprising:
- a joint valve body integrating a pressure limiting function and a thermal overpressure protection;
- an inflow hole and an outflow hole in the valve body;
- a valve piston being coupled to and actuated by a magnetic drive and interconnecting and separating the inflow hole and the outflow hole to and from, respectively, each other in a fluid-conveying manner, the magnetic drive having an armature piston mounted for longitudinal movement in a pole tube, the armature piston being electromechanically operated by an energizable solenoid so as to lift the valve piston off a valve seat in a valve housing being a part of the valve body and so as to open a fluid path from the inflow hole to the outflow hole;
- and
- a linkage part and a control rod being connected to the armature piston and moving the armature piston, the linkage part extending out of a pressurized area of a fluid volume enclosed in the valve housing and in the pole tube, being a further part of the valve body and being coupled to and movable counter to an action of an energy accumulator in the valve body;
- and
- a piston end of a piston-rod-unit of a hydraulic cylinder connected to the inflow hole in the valve body.
5 more elements
Dependencies are inferred from the claim text.