公开(公告)号：US11555293B2

公开(公告)日：2023-01-17

申请号：US17864379

申请日：2022-07-13

Applicant: ARTEMIS INTELLIGENT POWER LIMITED

Inventor： Niall James Caldwell ,  Jill Macpherson ,  Matthew Green

IPC: E02F9/22 ,  F15B11/16 ,  F15B11/17 ,  F04B7/00

Abstract: A prime mover and hydraulic actuators, a hydraulic machine having a rotatable shaft engaged with the prime mover and having a plurality of working chambers, a hydraulic circuit extending between a group of working chambers of the hydraulic machine and the hydraulic actuators, each working chamber of the hydraulic machine having a low-pressure and a high-pressure valve regulating the flow of hydraulic fluid between the working chamber and a corresponding low-pressure manifold and a high-pressure manifold. The hydraulic machine controlling the low-pressure valves of the group of working chambers to select the net displacement of hydraulic fluid by each working chamber on each cycle of working chamber volume, and thereby the net displacement of hydraulic fluid by the group of working chambers, responsive to a demand signal, the apparatus further having a controller calculating the demand signal responsive to a measured property of the hydraulic circuit or an actuator.

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

IPC: F15B11/17 ,  F15B11/042 ,  F04B1/053 ,  F04B49/03 ,  F04B49/06 ,  F04B49/22 ,  E02F9/22

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.

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

IPC: E02F9/22 ,  F04B1/053 ,  F04B49/03 ,  F04B49/06 ,  F04B49/22 ,  F15B11/042 ,  F15B11/17

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.