Stacked propellers

US11267571B2 · kind B2 · utility

Assignee

• JOBY AERO, INC. · US

Inventors

• Mark Moore · Henderson, US
• John Conway Badalamenti · San Francisco, US
• Ian Andreas Villa · San Francisco, US
• Adam Warmoth · San Francisco, US
• David Josephson · San Jose, US

Key dates

• Filing date: Nov 3, 2018
• Grant date: Mar 8, 2022
• Expiry date: Nov 3, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An aircraft can include a stacked propeller to generate lift during assent and descent. The stacked propeller includes a first propeller and a second propeller that co-rotate about an axis of rotation. In one embodiment, the blades are coupled to a rotor mast that contains an internal cavity. In one mode of operation, the first propeller and/or the second propeller can be stored in the internal cavity in order to reduce drag during flight. The aircraft can include one or more stacked propellers, such as a port propeller and a starboard propeller, which rotate in opposite directions during one or more modes of flight.