US 12,326,159 B2
Actuating apparatus for at least one fluidically drivable load
Heinz-Peter Huth, Überherrn (DE); Marc Anton, Völklingen (DE); Stephan Grün, Heusweiler (DE); and Michael Berwanger, Kleinblittersdorf (DE)
Assigned to HYDAC MOBILHYDRAULIK GMBH, Sulzbach/Saar (DE)
Appl. No. 18/291,682
Filed by HYDAC Mobilhydraulik GmbH, Sulzbach / Saar (DE)
PCT Filed Sep. 2, 2022, PCT No. PCT/EP2022/074443
§ 371(c)(1), (2) Date Jan. 24, 2024,
PCT Pub. No. WO2023/036700, PCT Pub. Date Mar. 16, 2023.
Claims priority of application No. 10 2021 004 612.9 (DE), filed on Sep. 11, 2021.
Prior Publication US 2025/0084871 A1, Mar. 13, 2025
Int. Cl. F15B 1/033 (2006.01); E02F 9/22 (2006.01); F15B 1/02 (2006.01)
CPC F15B 1/033 (2013.01) [E02F 9/2207 (2013.01); E02F 9/2217 (2013.01); E02F 9/2278 (2013.01); F15B 1/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An actuating apparatus for at least one fluidically drivable load, comprising at least one valve control device for controlling an alternating movement of the respective load and at least one suspension device which is connected between the valve control device and the respective load; wherein
the suspension device has a further valve control device; wherein
a valve piston of the further valve control device is movable in a corresponding valve housing in a continuously adjustable manner;
an accumulator device of the suspension device is connected to the respective load via a fluid path by means of the further valve control device in a suspension position of the valve piston of the further valve control device,
a pressure sensor is provided to detect a fluid pressure at a first branching point which is connected to a first and a second port of the further valve control device:
a further pressure sensor is provided to detect a fluid pressure in a fluid line between a second branching point connected to a fourth and a fifth port of the further valve control device and the accumulator device;
the pressure sensor and the further pressure sensor are connected to a control unit of the actuating apparatus to transmit measured values to the control unit, and wherein
the further valve control device is configured so that, when actuated by the control unit, a suspension pressure in the load and an accumulator pressure of the accumulator device balance each other out and accordingly adjust to each other.
 
13. An actuating apparatus for at least one fluidically drivable load, comprising at least one valve control device for controlling an alternating movement of the respective load and at least one suspension device which is connected between the valve control device and the respective load; wherein
the suspension device has a further valve control device;
a valve piston of the further valve control device is movable in a corresponding valve housing in a continuously adjustable manner;
an accumulator device of the suspension device is connected to the respective load via a fluid path by means of the additional valve control device in a suspension position of the valve piston of the further valve control device; and wherein
the valve piston of the further valve control device is disposable in a damping position in which the accumulator device is connected to the respective load via at least one further fluid path through the further valve control device, in which fluid path a flow cross-section constriction device is connected in each case.