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公开(公告)号：US20240318646A1
公开(公告)日：2024-09-26
申请号：US18613590
申请日：2024-03-22
Applicant: Eaton Intelligent Power Limited
Inventor： Brady Powell Dearing , Stephen Marshall Devan , Kelly Dale Valtr , Joshua Boone Pepper , Derek Paul Dougherty , Douglas Alexander Scott , Joseph Spaniol
CPC classification number: F04B49/065 , F04B23/04 , F04B49/08 , F04B2201/1201 , F04B2203/0209 , F04B2207/042
Abstract: Systems and methods for electronic pressure control of pumps in a dual pump system. The system may include a controller, a primary pump operated by the controller to maintain a system pressure in a flow path at a first pressure setpoint; a pressure transducer reading the system pressure and providing the system pressure to the controller; and a secondary pump operated by the controller to maintain the system pressure at a second pressure setpoint, the second pressure setpoint being less that the first pressure setpoint.
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公开(公告)号：US12116141B2
公开(公告)日：2024-10-15
申请号：US17545566
申请日：2021-12-08
Applicant: Eaton Intelligent Power Limited
Inventor： Jeffrey A. Baker , Mario F. Cruz , David R. Smit , Derek Paul Dougherty
IPC: B64D41/00
CPC classification number: B64D41/00 , B64D2201/00 , B64D2221/00
Abstract: An aircraft emergency power unit (EPU) includes a battery powered subsystem that replaces toxic hydrazine fuel use. The battery of the battery powered subsystem is utilized to supply power to an aircraft electrical system in the event of a failure of the EPU turbine-powered generator. The battery of the battery powered subsystem is also utilized to supply power to an electric hydraulic motor pump in the event of a failure of the EPU turbine-powered hydraulic pump (or to augment the output of the EPU-turbine-powered hydraulic pump). The battery of the battery powered subsystem is capable of simultaneously powering the electrical system and the electric hydraulic motor pump or of powering either one of the electrical system and electric hydraulic motor pump independently based upon aircraft fault conditions. Intermittent operation of the electrical system and/or the electric hydraulic motor pump in an intermittent fashion on an as-needed basis is also possible.
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公开(公告)号：US20230250816A1
公开(公告)日：2023-08-10
申请号：US18154350
申请日：2023-01-13
Applicant: EATON INTELLIGENT POWER LIMITED
Abstract: A hydraulic system includes a hydraulic pump and a motor configured to drive the hydraulic pump. A sensor measures motor speed. A controller includes a model configured to determine system parameters based on the measured motor speed, and the controller is configured to output control signals to the motor and a fan based on the determined system parameters.
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公开(公告)号：US20220185496A1
公开(公告)日：2022-06-16
申请号：US17545566
申请日：2021-12-08
Applicant: Eaton Intelligent Power Limited
Inventor： Jeffrey A. Baker , Mario F. Cruz , David R. Smit , Derek Paul Dougherty
IPC: B64D41/00
Abstract: An aircraft emergency power unit (EPU) includes a battery powered subsystem that replaces toxic hydrazine fuel use. The battery of the battery powered subsystem is utilized to supply power to an aircraft electrical system in the event of a failure of the EPU turbine-powered generator. The battery of the battery powered subsystem is also utilized to supply power to an electric hydraulic motor pump in the event of a failure of the EPU turbine-powered hydraulic pump (or to augment the output of the EPU-turbine-powered hydraulic pump). The battery of the battery powered subsystem is capable of simultaneously powering the electrical system and the electric hydraulic motor pump or of powering either one of the electrical system and electric hydraulic motor pump independently based upon aircraft fault conditions. Intermittent operation of the electrical system and/or the electric hydraulic motor pump in an intermittent fashion on an as-needed basis is also possible.
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