Patents Assigned to HYDAC Systems & Services GmbH
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Publication number: 20250041767Abstract: Disclosed is an apparatus for moving a plate in opposite directions using a plurality of hydraulic actuators wherein at least one possible inclination of the plate relative to a specifiable reference plane is monitored by means of a sensor device which controls the actuators in such a way that the plate takes the position of the reference plane.Type: ApplicationFiled: November 29, 2022Publication date: February 6, 2025Applicant: HYDAC Systems & Services GmbHInventors: Michael Scheidt, Andreas Neurohr
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Publication number: 20250012346Abstract: The disclosure relates to an electromechanical cylinder with a screw drive which converts the introduced motor torque of an electric motor into a linear movement for an actuating part, wherein at least one force acting on the actuating part is detected by means of a sensor device.Type: ApplicationFiled: December 7, 2022Publication date: January 9, 2025Applicant: HYDAC Systems & Services GmbHInventors: Michael Scheidt, Felix Anton Schwarz
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Patent number: 11614102Abstract: A pressure supply device for prioritised volume flow splitting, in particular in mobile working machines, includes at least one adjusting pump (2) controllable by an LS signal as main pump, a constant-displacement pump (4) as an auxiliary pump, and two pressure balances. A system is supplied primarily, in particular in the form of steering hydraulics (PL), which outputs an LS signal. A system is supplied secondarily, which outputs a further LS signal, in particular in the form of working hydraulics (PA). A further system is supplied hydraulically, in particular in the form of brake hydraulics (PB).Type: GrantFiled: May 30, 2018Date of Patent: March 28, 2023Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Matthias Mueter
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Patent number: 11529839Abstract: A device together with an assigned working machine for decoupling vibrations between two systems (2, 4) in the form of spring-mass oscillators, of which one system (2) is assigned to a motion machine and the other system (4) is assigned to an operator operating the motion machine. The other system (4) at least partially performs motions about a transverse axis (Q) during driving motions of the motion machine and in doing so is subject to vertical motions in the direction of a vertical axis (z) at an absolute vertical speed (vz1,1) serving as an input variable of control devices and/or regulating devices. Those devices control a damping system (8) of the one system (2) and/or the other system (4) to compensate for the vibrations. The respective pitch motion of the other system (4) is detected by at least one rotation rate sensor. The respective measured value (?1) of the sensor, preferably amplified by only a predeterminable factor (L1), results in the absolute vertical speed (vz1,1) as input variable.Type: GrantFiled: December 17, 2018Date of Patent: December 20, 2022Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Timo Kiefer
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Patent number: 11378192Abstract: A valve, which is characterized in that between a neutral position (38) of a control spool (STS) and one of its end positions (34, 42) a regeneration position (36) is provided. In the regeneration position, two utility ports (A, B) are interconnected in a fluid-conveying manner, or a floating position (40) is provided, in which these utility ports (A, B) are interconnected in a fluid-conveying manner. A further valve is characterized in that by a further motion of the control spool (STS) in the same direction, as that, in which a fluid connection is established between the utility ports (A, B) starting from the neutral position (38), this fluid connection is interrupted.Type: GrantFiled: May 9, 2019Date of Patent: July 5, 2022Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Sascha Alexander Biwersi
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Patent number: 11199272Abstract: A control device, for a hydraulic consumer (22) and susceptible to vibrations, includes a valve (24) having a control spool (40) controllable by an actuating device (46). The valve (24) has a pressure supply port (P), to which a pressure compensator valve can be connected, which can be supplied with pressure fluid from a pressure supply device. The actuating device (46) has a motor (74). A load-pressure-dependent force on the control spool (40) can be generated by a control device (66). That force at the control spool (40) acts on an electronic motor controller (208) of the DC motor (74), which detects a change of the force and acts as a damping of the vibrations of the consumer (22) against this change of force.Type: GrantFiled: May 9, 2019Date of Patent: December 14, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Sascha Alexander Biwersi
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Patent number: 11168707Abstract: A control device for an agricultural vehicle having a spray boom assembly for spreading material, such as fertilizer, plant protection products or seeds includes a control unit and at least two pressure control valves used for controlling an inclination of the spray boom assembly and connected to the control unit. Each pressure control valve has assigned thereto a check valve and a pressure sensor, the check valve being arranged between the pressure sensor and the pressure control valve. An agricultural vehicle and a method for operating the agricultural vehicle are arranged to spread material, such as fertilizer, plant protection products or seeds.Type: GrantFiled: May 16, 2017Date of Patent: November 9, 2021Assignees: Amazonen-Werke H. Dreyer SE & Co. KG, Hydac Systems & Services GmbHInventors: Frank Grosse Prues, Georg Komma, Patrick Krupp, Timo Kiefer, Peter Kohl
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Patent number: 11168710Abstract: A control apparatus for supplying at least one hydraulic consumer with fluid has a variable displacement pump (10) controlled by a load-sensing pressure (LS). For a case-by-case increase in the volume flow in the supply of fluid (22) to the hydraulic consumer, the load-sensing pressure (LS) is passed via a control line (28) to a control circuit (2) that ensures the increase in the supply (22) by connecting in a constant-displacement pump (16) as soon as an operator calls for the relevant function by operating the control circuit (2).Type: GrantFiled: April 27, 2018Date of Patent: November 9, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventors: Heinz-Peter Huth, Marc Anton
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Patent number: 11111935Abstract: A control device has a plurality of modular control sections (12a-12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for controlling or monitoring a valve apparatus, which are connected to a central energy supply and/or monitoring device, which have individual connection parts (20a-20d) assigned to the particular control section (12a-12d), and which are connected in series and to one another. At least some of the connection parts (20a-20d) used are wirelessly in direct engagement with one another by way of their plug parts (22a-22c) and socket parts (24a-24c) that face one another and are adjacent to one another.Type: GrantFiled: March 8, 2018Date of Patent: September 7, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventors: Sascha Alexander Biwersi, Kai Sumpf, Stephan Peter Schmitt
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Patent number: 11015723Abstract: A valve includes a valve housing (33), which has at least one service connection (A, B), a pressure supply connection (P) and a return connection (T). In the valve housing (33), a control slide (STS) is guided so as to be movable longitudinally to control these individual connections. The supply pressure, which is applied to the pressure connection (P) to control a consumer (10, 12), connected to the service connection (A; B), is guided across at least one control side (56) of the control slide (STS) via an orifice plate (54) and a control channel (50). The control side (56) is positioned in a control chamber (58) in the valve housing (33) such that it can move. The control chamber (58) is connected to the return connection (T) via an additional orifice plate (59).Type: GrantFiled: August 31, 2017Date of Patent: May 25, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Sascha Alexander Biwersi
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Patent number: 11009051Abstract: A valve includes a valve housing (2) for transport of a heatable fluid such as hydraulic oil. The valve housing has at least one utility connection (A, B), at least one pressure supply connection (P), and at least one return connection (T1, T2). A control slide (6) is guided in the valve housing (2) in a longitudinally displaceable manner. In at least one position of the control slide (6), the pressure supply connection (P) is at least partially separated from the utility connection (A, B), and the heatable fluid arrives, proceeding from this pressure supply connection (P) and via a heat-emitting connection in the control slide (6), at the at least one return connection (TI, T2) as a loss volume flow. The loss volume flow serves as a heat source and heats at least regions of the control slide (6).Type: GrantFiled: April 27, 2018Date of Patent: May 18, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventors: Sascha Alexander Biwersi, Christoph Stoenner, Michael Timothy Teiga
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Patent number: 10962031Abstract: A control device for at least one hydraulic working section (A, B), which can be connected to a pressure supply source (P) and a return flow (T) via a hydraulic supply circuit and to a control valve (34) supplied with a pilot pressure. The device includes an emergency shutdown system (32) having a pilot solenoid valve (16) and an additional valve (14). Both the hydraulic energy flow from the pressure supply source (P) to at least one of the respective working sections (A, B) and the pilot pressure supply to the control valve (34) can be suppressed by the pilot solenoid valve (16) via the additional valve (14).Type: GrantFiled: March 16, 2017Date of Patent: March 30, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventors: Christoph Stoenner, Sascha Alexander Biwersi, Peter Jakobs
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Patent number: 10914325Abstract: A valve apparatus for influencing a flow of medium between a supply port (38) and a pressure port (40) has a valve device (10). In one closed position, the valve device blocks the connection between the supply port (38) and the pressure port (40). The valve device opens this connection in one opened position, in which the pressure port (40) is connected to at least one of two medium chambers (62, 80) by a respective fluid channel (64, 82). One fluid chamber (64) comprises a fluid duct (68) in the valve slider (22). The other fluid channel (82) has a further fluid duct (84) that is separate from the fluid duct (68). In one of the opened positions of the valve slider (22), the further fluid duct (84) opens at one end (92) into the medium chamber (80). In every displacement position of the valve slider (22), the further fluid duct (84) is permanently connected at the other end (94) to the pressure port (40).Type: GrantFiled: June 16, 2017Date of Patent: February 9, 2021Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Sascha Alexander Biwersi
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Patent number: 10801616Abstract: A hydrostatic drive, as a whole system, includes two fluidic displacement units (1, 3), which can be adjusted at least in respect of the volumetric flow. One unit is coupled to an input (9). The other unit is coupled to an output (11). The units can be connected to each other in the manner of a closed fluidic circuit, to which a storage circuit (23) is connected. The storage circuit has at least one storage device (33), is divided into a low-pressure side (27) and a high-pressure side (25), and has a valve control (17) for controlling the whole system.Type: GrantFiled: May 6, 2016Date of Patent: October 13, 2020Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Kenny Hinsberger
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Publication number: 20200281182Abstract: A regulating and/or control system for an agricultural machine includes a distributor linkage for spreading material, such as fertilizer, plant protection products, or seeds, the distributor linkage being pivotable about at least one axis of rotation extending in the direction of travel, with at least one first sensor device for determining the inclination of the distributor linkage; and a data processing device for processing the sensor signals. The system further includes at least one second sensor device for determining the centrifugal force FF and/or the centrifugal acceleration aF acting upon the first sensor device when the machine is turning corners, where the data processing device is configured such that an inclination measurement error of the first sensor device can be corrected based on the sensor signals of the second sensor device.Type: ApplicationFiled: May 3, 2017Publication date: September 10, 2020Applicants: AMAZONEN-WERKE H. Dreyer GmbH & Co. KG, HYDAC Systems & Services GmbH, HYDAC Systems & Services GmbHInventors: Timo Kiefer, Georg Komma, Peter Kohl, Patrick Krupp, Frank Grosse Prues, Jochen Heer
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Patent number: 10750734Abstract: An agricultural machine for discharging liquid includes a boom, a frame to which the boom is fixed such that the boom can be rotated about an axis of rotation pointing in the direction of travel, an actuating cylinder for rotating the boom about the axis of rotation, and a measurement and control system for the actuation of the actuating cylinder, wherein the actuating cylinder is mechanically connected to the frame on one side. The actuating cylinder is mechanically connected to the boom on the other side for the direct introduction of force. The actuating cylinder is formed as a double-acting actuating cylinder having a piston, to which pressure can be applied on both sides in order to move the boom in opposite directions of rotation.Type: GrantFiled: January 25, 2016Date of Patent: August 25, 2020Assignees: Amazonen Werke H. Dreyer GmbH & Co. KG, Hydac Systems & Services GmbHInventors: Friedrich Oberheide, Frank Grosse Prues, Timo Kiefer, Peter Kohl, Heinz-Peter Huth, Georg Komma, Martin Piechnick
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Patent number: 10612567Abstract: A valve device with pressure-reducing function, comprised of at least one logic valve (V1); one lock valve (V2); and one pressure-reducing valve (V3), wherein the inlet (1) of the logic valve (V1) may be connected to a pressure supply source (HD), characterized in that the outlet (V1.2) of the logic valve (V1) and the outlet (V3.1) of the pressure reducing valve (V3) are connected together to an outlet or user port (A); and that the lock valve (V2) is connected with its inlet (V2.1) to the inlet (V1.1) of the logic valve (V1) as well as to a control side (V1.3) of the same, and with its outlet (V2.2) to an inlet (V3.2) of the pressure-reducing valve (V3).Type: GrantFiled: May 10, 2017Date of Patent: April 7, 2020Assignee: HYDAC SYSTEMS & SERVICES GMBHInventor: Kenny Hinsberger
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Publication number: 20190150358Abstract: A control device for an agricultural vehicle having a spray boom assembly for spreading material, such as fertilizer, plant protection products or seeds includes a control unit and at least two pressure control valves used for controlling an inclination of the spray boom assembly and connected to the control unit. Each pressure control valve has assigned thereto a check valve and a pressure sensor, the check valve being arranged between the pressure sensor and the pressure control valve. An agricultural vehicle and a method for operating the agricultural vehicle are arranged to spread material, such as fertilizer, plant protection products or seeds.Type: ApplicationFiled: May 16, 2017Publication date: May 23, 2019Applicants: Amazonen-Werke H. Dreyer GmbH & Co. KG, HYDAC Systems & Services GmbHInventors: Frank Grosse Prues, Georg Komma, Patrick Krupp, Timo Kiefer, Peter Kohl