Patent · US Active

Two-piece firewall and inlet plenum

US10689126B2 · kind B2 · utility

2Cited by

2References

20Claims

0Family size

Assignee

Bell Helicopter Textron Inc. · US

Inventors

Brent Scannell · Deux-Montagnes, CA
Thomas Mast · Carrollton, US

Key dates

Filing date	Jun 19, 2017
Grant date	Jun 23, 2020
Priority date	—
Expiry date	Jan 2, 2039

Classification

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

Abstract

In one embodiment, there is described an inlet plenum assembly for a rotary aircraft, including: an inlet plenum defined on a first side by an inlet plenum wall and on a second side by a forward firewall assembly; the inlet plenum wall having a mechanical interface for receiving a reduction gearbox (RGB) to provide reduction gearing to the drive shaft; and the forward firewall assembly having an inlet aperture configured to receive a drive shaft to rotatably couple to an engine; wherein the forward firewall assembly includes a forward firewall upper and a forward firewall lower, the forward firewall upper configured to removably seat to the forward firewall lower.

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