The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Oct. 27, 2022
Neapco Intellectual Property Holdings, Llc, Farmington Hills, MI (US);
Donald James Remboski, Ann Arbor, MI (US);
Patrick A. O'Gorman, Escondido, CA (US);
Gorazd Gotovac, Ljubljana, SI;
Abstract
A quality diagnostics system for lubricant/coolant fluid includes a lubricant supported electric motor including a stator and a rotor defining a gap therebetween, with the lubricant/coolant fluid disposed in the gap for supporting the rotor while allowing the rotor to rotate relative to the stator. An inverter includes a plurality of power switches configured to supply an alternating current (AC) power to the motor for driving the rotor to rotate. A passageway conveys the lubricant/coolant fluid between the motor and the inverter. A lubricant quality sensor includes a set of sensor plates disposed along the passageway, an excitation source configured to apply an AC excitation voltage to a first sensor plate, and an electrical sensor configured to measure a response to the AC excitation voltage. A controller determines, based on a sensor signal from the electrical sensor, at least one of metal contamination and water contamination in the lubricant/coolant fluid.