Volume follow supply
AssigneeHydac Fluidtechnik GmbH
InventorsPeter Bruck, Tobias Dohmen
Life of this patent
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Abstract
The disclosure relates to a volume flow supply, in particular for closed center LS systems, comprising a pressure supply device and a pressure balance as components of a supply system for supplying fluid of a load which can be hydraulically connected to the supply system. The pressure supply device provides a volume flow when required in order to supply the hydraulic load in that the pressure balance is made of a circulation pressure balance which discharges a possible surplus volume flow out of the supply flow. The volume flow supply also comprises a controller which reduces the surplus volume flow to a minimum by actuating the pressure supply device.
Claims16
A volume flow supply, comprising
- a pressure supply device and a pressure compensator as components of a supply system for supplying fluid to a hydraulic consumer which can be connected thereto,
- wherein the pressure supply device provides a volume flow when required in order to supply the hydraulic consumer;
- wherein the pressure compensator is made of a bypass pressure regulator valve which discharges a surplus volume flow out of the volume flow;
- the volume flow supply further comprising a controller which reduces the surplus volume flow to a minimum by actuating the pressure supply device;
- wherein
- an outlet side of the bypass pressure regulator valve adjoins at least one measuring orifice;
- and wherein
- at least one further measuring orifice and/or a check valve is connected in parallel with the one measuring orifice.
Dependencies are inferred from the claim text.