Patent · US Active

RAM air turbine smoke isolation

US9114888B2 · kind B2 · utility

2Cited by

3References

20Claims

0Family size

Assignee

Hamilton Sundstrand Corporation (HSC) · US

Inventors

Paul Swearingen · Rockford, US
Scott J. Marks · Oregon, US

Key dates

Filing date	Feb 22, 2012
Grant date	Aug 25, 2015
Priority date	—
Expiry date	Feb 4, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64D2045/009
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An electrical power generation and distribution system includes a RAM air turbine a first direct current essential bus, a second direct current essential bus, a third direct current essential bus, a first contactor disposed between the first and third direct current essential buses, a second contactor disposed between the second and third direct current essential bus, a third contactor disposed between the RAM air turbine and the third direct current essential bus, a RAM air turbine smoke isolation system, including a first drive circuit coupled to the first contactor, a second drive circuit coupled to the second contactor, a third drive circuit coupled to the third contactor and a transfer inhibit switch coupled to the first, second and third drive circuits.

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