Patent ID: 11905981
Assignee: GJR MEYER SERVICE, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H  E | IPC F

Claim 7:
8. A method for maintaining pressure in a hydraulic accumulator, the method comprising:
providing a pressure sensor electrically coupled to a control unit;
providing a check valve hydraulically coupled to the pressure sensor through a first hydraulic connector;
providing a pump hydraulically coupled to the check valve through a second hydraulic connector and electrically coupled to the control unit;
mechanically detecting, using the pressure sensor, a pressure at the first hydraulic connector;
transmitting, using the pressure sensor, an electrical signal to the control unit when the pressure at the first hydraulic connector falls below a first threshold;
receiving, by the control unit, the electrical signal;
controlling the pump, using the control unit, to urge, at a first time, hydraulic fluid through the check valve into the first hydraulic connector through the second hydraulic connector responsive to the control unit receiving the electrical signal;
ceasing, using the pressure sensor transmission of the electrical signal to the control unit when the pressure at the first hydraulic connector exceeds a second threshold; and
ceasing, by the pump, to urge hydraulic fluid through the check valve into the first hydraulic connector through the second hydraulic connector responsive the control unit detecting that the control unit has stopped receiving the electrical signal.