David G Hawthorne

US Patent:

20210070461, Mar 11, 2021

Filed:

Sep 8, 2019

Appl. No.:

16/563908

Inventors:

- Fort Worth TX, US
David Alan Hawthorne - Colleyville TX, US
Brad Robert Henson - Fort Worth TX, US
David Frank Haynes - Arlington TX, US
David Lawrence Miller - North Richland Hills TX, US

Assignee:

Bell Textron Inc. - Fort Worth TX

International Classification:

B64D 33/02
B64D 27/14

Abstract:

A rotorcraft has a fuselage, an engine disposed substantially laterally centrally relative to the fuselage, and an air intake system (AIS). The AIS has a first duct configured to provide streamline air flow, a second duct configured to provide streamline air flow, and a combining section configured to receive streamline air flow from each of the first duct and the second duct. The combining section is further configured to output streamline air flow.

US Patent:

20180274563, Sep 27, 2018

Filed:

Mar 22, 2017

Appl. No.:

15/466655

Inventors:

- Fort Worth TX, US
Robert Paul Reynolds - Fort Worth TX, US
David Alan Hawthorne - Fort Worth TX, US
Carlos Alexander Fenny - Fort Worth TX, US

Assignee:

Bell Helicopter Textron Inc. - Fort Worth TX

International Classification:

F15B 11/17
F15B 1/26
B64D 29/02
B64C 29/00
B64C 13/36

Abstract:

A hydraulic system for an aircraft having an engine and an auxiliary power unit includes a first hydraulic subsystem including a first hydraulic pump and a first set of hydraulic-powered components in fluid communication with the first hydraulic pump. The first hydraulic pump is powered by the engine to pump shared hydraulic fluid to the first set of hydraulic-powered components. The hydraulic system includes a second hydraulic subsystem including a second hydraulic pump and a second set of hydraulic-powered components in fluid communication with the second hydraulic pump. The second hydraulic pump is powered by the auxiliary power unit to pump the shared hydraulic fluid to the second set of hydraulic-powered components. A shared return line subsystem and reservoir is in fluid communication with the first and second hydraulic subsystems to return the shared hydraulic fluid to the first and second hydraulic pumps.