Invention Grant
- Patent Title: Hydraulic valve with switching regeneration circuit
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Application No.: US16415601Application Date: 2019-05-17
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Publication No.: US11378989B2Publication Date: 2022-07-05
- Inventor: Dennis L. Reynolds
- Applicant: Parker-Hannifin Corporation
- Applicant Address: US OH Cleveland
- Assignee: Parker-Hannifin Corporation
- Current Assignee: Parker-Hannifin Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: F15B13/02
- IPC: F15B13/02 ; F16K11/00 ; G05D16/20 ; E02F9/22 ; F15B13/04 ; F15B21/14 ; F16K11/065 ; E02F3/42

Abstract:
A hydraulic valve assembly having a regeneration circuit, where the hydraulic valve assembly is switchable between a regenerative mode and a non-regenerative mode as the valve assembly supplies fluid to operate a hydraulic device. The hydraulic valve assembly may be automatically switchable between the regenerative mode and the non-regenerative mode, such as by utilizing a pressure control valve in the hydraulic circuit that is activatable at a predetermined pressure setpoint, or by utilizing a variable pressure reducing valve that actuates a spool in the hydraulic circuit. In other embodiments, the hydraulic valve assembly may be manually switchable between the regenerative mode and non-regenerative mode by utilizing a valve member operatively coupled to a solenoid in cooperation with one or more check valves in the regeneration circuit.
Public/Granted literature
- US20190271993A1 HYDRAULIC VALVE WITH SWITCHING REGENERATION CIRCUIT Public/Granted day:2019-09-05
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