Piezoelectric liquid inertia vibration eliminator

US9771150B2 · kind B2 · utility

Assignee

• Bell Helicopter Textron Inc. · US

Inventors

• Michael R. Smith · Colleyville, US
• Frank B. Stamps · Colleyville, US
• Taeoh Lee · Keller, US
• David E. Heverly, II · Arlington, US
• Robert J. Pascal · East Greenwich, US

Key dates

• Filing date: Aug 1, 2013
• Grant date: Sep 26, 2017
• Expiry date: Aug 24, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64C2027/005
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A tunable vibration isolator with active tuning elements having a housing, fluid chamber, and at least one tuning port. A piston is resiliently disposed within the housing. A vibration isolation fluid is disposed within the fluid chambers and the tuning ports. The tunable vibration isolator may employ either a solid tuning mass approach or a liquid tuning mass approach. The active vibration elements are preferably solid-state actuators.