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公开(公告)号：US20220333620A1
公开(公告)日：2022-10-20
申请号：US17640143
申请日：2020-09-03
Applicant: Artemis Intelligent Power Limited
Inventor： Niall Caldwell , Uwe Stein , Jill Macpherson , Matthew Green , Callan MacKay
Abstract: A hydraulic apparatus has a plurality of pump modules each of which is formed by a plurality of working chambers having a common high pressure manifold. A connecting circuit switchably connects pump modules to first and second hydraulic circuit portions to allocate capacity as first and second demands for hydraulic fluid vary. In an apparatus which may have two or more connecting circuit outputs, valves may be controlled or working chamber pumping cycles made inactive to facilitate the reallocation of a pump module from one output to another, and a control strategy addresses pump module allocation when the demands for hydraulic fluid exceed available capacity.
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公开(公告)号：US11959252B2
公开(公告)日：2024-04-16
申请号：US17640143
申请日：2020-09-03
Applicant: Artemis Intelligent Power Limited
Inventor： Niall Caldwell , Uwe Stein , Jill Macpherson , Matthew Green , Callan MacKay
CPC classification number: E02F9/2242 , E02F9/22 , F04B1/053 , F04B49/03 , F04B49/06 , F04B49/22 , F15B11/042 , F15B11/17 , F15B2211/20576 , F15B2211/6654 , F15B2211/7142
Abstract: A hydraulic apparatus has a plurality of pump modules each of which is formed by a plurality of working chambers having a common high pressure manifold. A connecting circuit switchably connects pump modules to first and second hydraulic circuit portions to allocate capacity as first and second demands for hydraulic fluid vary. In an apparatus which may have two or more connecting circuit outputs, valves may be controlled or working chamber pumping cycles made inactive to facilitate the reallocation of a pump module from one output to another, and a control strategy addresses pump module allocation when the demands for hydraulic fluid exceed available capacity.
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