Hydraulic system sensor
AssigneeEaton Corporation
InventorsPaul BRENNER, Hassan AL-ATAT, David MAKIS
Life of this patent
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Abstract
A hydraulic system includes a hydraulic circuit and a sensor for sensing a characteristic of hydraulic fluid of the hydraulic circuit. An energy harvester is configured to harvest energy from the hydraulic circuit. A controller interfaces with the sensor and is powered at least in part by the energy harvester. Various types of sensors are employed, including pressure and temperature sensors. A battery may further be included for powering the controller in addition to the energy harvester.
Claims23
A hydraulic system, comprising:
- a hydraulic circuit;
- a sensor for sensing a characteristic of hydraulic fluid of the hydraulic circuit;
- an energy harvester configured to harvest energy from the hydraulic circuit;
- and
- a controller powered at least in part by the energy harvester, the controller interfacing with the sensor.
A sensor module for sensing a characteristic of a hydraulic system, comprising:
- a module body having an inlet and an outlet with a fluid flow path between the inlet and the outlet;
- a sensor situated in fluid communication with the fluid flow path;
- an energy harvester connected to the module body and configured to harvest energy from the hydraulic system;
- and
- a controller powered at least in part by the energy harvester, the controller interfacing with the sensor.
-32. (canceled)
Dependencies are inferred from the claim text.