Patent application number | Description | Published |
20100327209 | HYDRAULIC MEDIUM INSERT FOR A CONTROL VALVE IN A HYDRAULIC ACTUATOR - A hydraulic medium insert for a control valve in a hydraulic actuator which has a tubular guide sleeve for guiding a control piston, which is disposed in a receptacle, which has passage openings for the hydraulic medium, which are disposed in the guide sleeve and separated by webs. A plastic part is disposed on the exterior side of the guide sleeve and has sealing webs, which are supported on the inside on the webs of the guide sleeve, which separate the passage openings, and press against the inside of the receptacle to form a seal on the outside. | 12-30-2010 |
20110204269 | ACTIVATION ELEMENT OF AN ELECTROMAGNETIC ACTUATING UNIT OF A HYDRAULIC VALVE - An activation element of an electromagnetic actuating unit of a hydraulic valve which has an armature that is essentially cylindrical and which is arranged in a slidable fashion in the actuating unit. Also, a method for manufacturing an activation element of an electromagnetic actuating unit of a hydraulic valve. The activation element has at least one substantially cylindrical armature, one plunger rod and one magnet cone. The plunger rod and the magnet cone are embodied in one piece with the armature. | 08-25-2011 |
20110220826 | ELECTROMAGNETIC ACTUATING UNIT FOR A HYDRAULIC DIRECTIONAL CONTROL VALVE AND METHOD FOR THE ASSEMBLY THEREOF - An electromagnetic actuating unit for a hydraulic directional control valve and to a method for the assembly thereof. The actuating unit has a coil for generating a magnetic field, a yoke unit with a yoke and a yoke plate, and a pole core unit with a pole core and a housing for conducting a magnetic flux, and an armature unit which is arranged in the magnetic field of the coil and has an armature and a pressure pin as an actuator. The armature unit can be displaced in the direction of the longitudinal axis thereof in a first bearing point in the yoke unit and in a second bearing point in the pole core unit. At least one of the hearing points can be displaced in the radial direction during assembly of the actuating unit and can be fixed after a coaxial orientation of both bearing points. | 09-15-2011 |
20110226204 | FILTER ELEMENT AND CONTROL VALVE FOR A CAMSHAFT ADJUSTMENT SYSTEM - A filter element for a control valve of a camshaft adjuster. The filter element has an annular filter fabric for extracting particles, and a gripping frame for fastening the annular filter fabric. The gripping frame is designed here for the planar bracing of the annular filter fabric on the control valve. Furthermore, a control valve is disclosed for a camshaft adjuster with a corresponding filter element. | 09-22-2011 |
20110232781 | HYDRAULIC DIRECTIONAL VALVE - A hydraulic directional valve which has a valve housing and a filter element. At least one groove encircles the valve housing and the filter element is arranged in the groove and has at least one frame element and a filter fabric which is firmly connected to the frame element. The groove has a groove base and two side walls which extend substantially in the radial direction and circumferential direction. | 09-29-2011 |
20110285484 | PROPORTIONAL MAGNET FOR A HYDRAULIC DIRECTIONAL CONTROL VALVE AND METHOD FOR THE PRODUCTION THEREOF - A proportional magnet for a hydraulic directional control valve and a method for the production thereof. The proportional magnet has a coil unit, a bearing unit and a pole disk. The coil unit has a cylindrical coil, a cylindrical magnet casing surrounding the coil, an annular yoke disc arranged at a face of the magnet casing and a housing. The bearing unit has a yoke with a first bearing point, a pole core with a second bearing point, and an armature unit with a magnet armature and a pressure pin. The bearing points and armature unit are aligned coaxially by a centering sleeve. When mounting the proportional magnet, the bearing unit is inserted into a cylindrical opening of the coil unit and the pole disc is put on the coil unit after the bearing unit is inserted for axially fixating the bearing unit and closing the magnetic circuit. | 11-24-2011 |
20120312396 | PROPORTIONAL VALVE, IN PARTICULAR FOR A CAMSHAFT ADJUSTER - A proportional valve ( | 12-13-2012 |
20120319018 | ELECTROMAGNETIC HYDRAULIC VALVE - An electromagnetic hydraulic valve, having a solenoid ( | 12-20-2012 |
20130199634 | CONTROL VALVE FOR HYDRAULIC MEDIA - A control device for hydraulic media with a control valve, in particular, a proportional valve that has a sleeve housing provided with radial openings, wherein at least one pressurized flow feed line, at least one control line, and at least one return line are connected to the openings, and the opening for the pressurized flow feed line is connected to a ring-shaped groove, with a control slide that has control edges and is supported in the sleeve housing so that it can move in the axial direction and is actuated by an electromagnetically constructed control unit, advantageously for controlling a phase adjustment device for the variable adjustment of the control times of gas exchange valves of a reciprocating piston internal combustion engine. A non-return valve is installed in the pressurized flow feed line or in the ring-shaped groove that is arranged in the sleeve housing. | 08-08-2013 |
20130200289 | CONTROL VALVE FOR A CAM SHAFT ADJUSTER - A control valve for a cam shaft adjuster, including a valve housing and a control piston, which is designed as an injection-molded product and is axially displaceably mounted within the valve housing and which has a substantially tubular main body, wherein the control piston, on an end face, has an actuating surface for a control component. To this end, the control piston includes, at an end thereof, an axially extending molded-on component which includes a gate point on one of the lateral faces thereof. Such a design of a control valve allows the control piston to be securely guided within the valve housing at low manufacturing cost of the control piston. | 08-08-2013 |
20140216376 | COIL AND SOLENOID VALVE | 08-07-2014 |