公开(公告)号：US20210348696A1

公开(公告)日：2021-11-11

申请号：US17315881

申请日：2021-05-10

Applicant: Emerson Process Management Valve Automation, Inc.

Inventor： Shankar Dhekale ,  Jason T. Hoffbauer

IPC: F16K31/42

Abstract: Universal control circuitry for an electro-hydraulic valve actuator system includes logic gate circuitry to control one or more of a closing solenoid valve, an opening solenoid valve, an emergency shutdown solenoid valve, and a hydraulic fluid pump motor to route hydraulic fluid through a hydraulic circuit to actuate a valve via a hydraulic actuator according to received commands. The universal control circuitry is configured to control operation for multiple different configurations of a hydraulic valve actuator system including double-acting configurations, single-acting spring-to-open configurations, and single-acting spring-to-close configurations, each with or without an emergency shutdown arrangement (which may be configured to trip based on an external shutdown input alone or in combination with a local system power failure), a hydraulic accumulator, and maintained or momentary input commands.

公开(公告)号：US12031639B2

公开(公告)日：2024-07-09

申请号：US17315881

申请日：2021-05-10

Applicant: Emerson Process Management Valve Automation, Inc.

Inventor： Shankar Dhekale ,  Jason T. Hoffbauer

IPC: G05D7/00 ,  F16K31/42

CPC classification number: F16K31/42 ,  G05D7/005

Abstract: Universal control circuitry for an electro-hydraulic valve actuator system includes logic gate circuitry to control one or more of a closing solenoid valve, an opening solenoid valve, an emergency shutdown solenoid valve, and a hydraulic fluid pump motor to route hydraulic fluid through a hydraulic circuit to actuate a valve via a hydraulic actuator according to received commands. The universal control circuitry is configured to control operation for multiple different configurations of a hydraulic valve actuator system including double-acting configurations, single-acting spring-to-open configurations, and single-acting spring-to-close configurations, each with or without an emergency shutdown arrangement (which may be configured to trip based on an external shutdown input alone or in combination with a local system power failure), a hydraulic accumulator, and maintained or momentary input commands.

公开(公告)号：US20240309965A1

公开(公告)日：2024-09-19

申请号：US18676378

申请日：2024-05-28

Applicant: Emerson Process Management Valve Automation, Inc.

Inventor： Shankar Dhekale ,  Jason T. Hoffbauer

IPC: F16K31/42 ,  G05D7/00

CPC classification number: F16K31/42 ,  G05D7/005

Abstract: Universal control circuitry for an electro-hydraulic valve actuator system includes logic gate circuitry to control one or more of a closing solenoid valve, an opening solenoid valve, an emergency shutdown solenoid valve, and a hydraulic fluid pump motor to route hydraulic fluid through a hydraulic circuit to actuate a valve via a hydraulic actuator according to received commands. The universal control circuitry is configured to control operation for multiple different configurations of a hydraulic valve actuator system including double-acting configurations, single-acting spring-to-open configurations, and single-acting spring-to-close configurations, each with or without an emergency shutdown arrangement (which may be configured to trip based on an external shutdown input alone or in combination with a local system power failure), a hydraulic accumulator, and maintained or momentary input commands.