Method and device for venting the suction side of a synthetically commutated hydraulic pump
AssigneeDanfoss Power Solutions GmbH & Co. OHG
InventorsAlexis Dole, Luke Wadsley
Life of this patent
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Abstract
The invention relates to a method of venting a synthetically commutated hydraulic pump (2). The connecting fluid conduits (8, 16), connecting said synthetically commutated hydraulic pump (2) with a fluid reservoir (7) is vented at least on start-up of the synthetically commutated hydraulic pump (2), using a fluid intake device (14, 17, 20) that connects to a fixed displacement pump (3).
Claims24
A fluid working machine arrangement, comprising a synthetically commutated hydraulic fluid working machine, having at least one working chamber with at least one actuated valve, wherein said at least one actuated valve fluidly communicates with a connecting fluid conduit, wherein said connecting fluid conduit comprises at least one venting device that is fluidly connected to a fluid intake device, wherein a high pressure line of the synthetically commutated hydraulic fluid working machine and a high pressure line of the fluid intake device are arranged in parallel, and wherein operation of the fluid intake device on start-up causes air entrapped in a low pressure line of the synthetically commutated hydraulic fluid working machine to enter a low pressure line of the fluid intake device.
A method of venting a synthetically commutated fluid working machine, wherein at least one connecting fluid conduit, connecting said synthetically commutated fluid working machine with a different hydraulic device, is vented at least at times of a working interval of said synthetically commutated fluid working machine, using a fluid intake device, wherein a high pressure line of the synthetically commutated fluid working machine and a high pressure line of the fluid intake device are arranged in parallel, and wherein operation of the fluid intake device on start-up causes air entrapped in a low pressure line of the synthetically commutated hydraulic fluid working machine to enter a low pressure line of the fluid intake device.
Dependencies are inferred from the claim text.