Patent · US Active

Gearbox noise reduction by electrical drive control

US8532828B2 · kind B2 · utility

24Cited by

64References

21Claims

0Family size

Assignee

General Electric Company · US

Inventors

Simon Herbert Schramm · Bayern, DE
Christof Martin Sihler · Hallbergmoos, DE
Jan Erich Hemmelmann · Munich, DE
Robert Roesner · Oberschleißheim, DE

Key dates

Filing date	Nov 7, 2008
Grant date	Sep 10, 2013
Priority date	—
Expiry date	Feb 2, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG10K2210/1282
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system for damping audible noise from a drive train. One embodiment is a system with an audible noise signal from a drive train wherein a damping circuit produces a damping torque that is a phase shifted and amplified version of the noise signal that is applied to the air-gap torque of a generator or motor coupled to the drive train and effectively reduces the audible noise.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.