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US 12,460,660 B2Granted
Advanced hydraulic accumulator autostart
AssigneeGJR Meyer Service, Inc.
InventorsGary Michael Elsik, Noel Donavan McKim, Frank Michael Gonzalez
Life of this patent
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Abstract
A system for automatically actuating a hydraulic accumulator—useful for oil collection systems—capable of operation while maintaining a zero or near zero draw of electrical energy.
Claims13
A system for maintaining hydraulic pressure at a hydraulic accumulator, the system comprising:
- a pressure sensor coupled to a control unit;
- a check valve coupled to the pressure sensor through a first connector;
- and
- a pump coupled to the check valve through a second connector and coupled to the control unit;
- wherein the pressure sensor is configured to mechanically detect a pressure at the first connector,
- the pressure sensor is further configured to transmit a signal to the control unit when the pressure at the first connector falls below a first threshold,
- the pressure sensor is further configured to transmit a second signal to the control unit when the pressure at the first connector exceeds a second threshold,
- the control unit is configured to control the pump to urge, at a first time, hydraulic fluid through the check valve into the first connector through the second connector when the control unit receives the signal, and
- wherein the control unit is further configured to control the pump to cease urging hydraulic fluid through the check valve into the first connector through the second connector when the control unit receives the second signal.
6 more elements
A method for maintaining pressure in a hydraulic accumulator, the method comprising:
- providing a pressure sensor coupled to a control unit;
- providing a check valve hydraulically coupled to the pressure sensor through a first connector;
- providing a pump coupled to the check valve through a second connector and coupled to the control unit;
- mechanically detecting, using the pressure sensor, a pressure at the first connector;
- transmitting, using the pressure sensor, a signal to the control unit when the pressure at the first connector falls below a first threshold;
- receiving, by the control unit, the signal;
- controlling the pump, using the control unit, to urge, at a first time, hydraulic fluid through the check valve into the first connector through the second connector responsive to the control unit receiving the signal;
- ceasing, using the pressure sensor transmission of the signal to the control unit when the pressure at the first connector exceeds a second threshold;
- and
- ceasing, by the pump, to urge hydraulic fluid through the check valve into the first connector through the second connector responsive the control unit detecting that the control unit has received a second signal from the pressure controller.
7 more elements
Dependencies are inferred from the claim text.