Ernest Lee Rogers

US Patent:

7290738, Nov 6, 2007

Filed:

Oct 28, 2004

Appl. No.:

10/975120

Inventors:

Ernest O. Rogers - Great Falls VA, US
Robin D. Imber - Rockville MD, US
Jane S. Abramson - Great Falls VA, US
Martin J. Donnelly - Gaithersburg MD, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B64C 3/00
B64C 21/04
B64C 5/00
B64C 13/16

US Classification:

244207, 244198, 244203, 416914

Abstract:

Separate upper and lower plenums within an aircraft airfoil or a sea hydrofoil conduct fluid under different pressures to nozzle slots from which jets emerge to augment lift in accordance with different travel conditions. Lift is induced by nozzle slot emergence of a primary jet from one of the plenums along a reverse flow path relative to secondary jet outflow from the other plenum. This capability involves angularly adjusted deflection of the primary jet outflow along forward, reverse or vertical directional flow paths from the trailing end of the airfoil or hydrofoil under zero and other different speed conditions by emergence of the secondary wall jet.

US Patent:

57657769, Jun 16, 1998

Filed:

Oct 22, 1996

Appl. No.:

8/734824

Inventors:

Ernest O. Rogers - Great Falls VA
Robin D. Imber - Rockville MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B64C 3906

US Classification:

244 122

Abstract:

A vehicular lift wing having a Coanda edge perimeter, is provided with a zle slot formation from which fluid ejection is directed tangentially from the full Coanda edge perimeter during translation through an ambient fluid medium. Omnidirectional control means supplies pressurized fluid to the nozzle slot formation at different azimuthal locations along the Coanda edge perimeter for selectively controlled generation of dynamic forces exerted on the wing.

US Patent:

57273812, Mar 17, 1998

Filed:

Feb 19, 1997

Appl. No.:

8/802701

Inventors:

Ernest O. Rogers - Great Falls VA

Assignee:

The United States of America as represented by Secretary of the Navy - Washington DC

International Classification:

B63H 2546
B64C 1514

US Classification:

60231

Abstract:

A duct fixed to a vehicle propelled through an ambient fluid medium is innally provided with spaced channel passages from which the fluid medium is ejected under pressure tangentially of local duct surfaces through Coanda affected slots at the trailing edge of the duct from which only the ejection of the fluid medium occurs. The supply of the pressurized fluid medium under selective control is limited to different angular segments of the channel passages in order to modify the flow stream through the duct so as to perform certain functions such as thrust control and steerage control effects enhancing vehicle maneuverability.

US Patent:

54643210, Nov 7, 1995

Filed:

Nov 24, 1978

Appl. No.:

5/964237

Inventors:

Robert M. Williams - Chantilly VA
Ernest O. Rogers - Great Falls VA
Maurice M. Sevik - Potomac MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B63H 114
B63H 118

US Classification:

416 93A

Abstract:

A marine propeller using the circulation control principle of blowing tantially over a Coanda surface at the trailing edge of each blade to develop high blade lift (thrust). Each blade has internal chambers and two blowing slots so that blowing is controllable for forward and for reverse thrust without reversing rotational direction of the propeller. This propeller is capable of generating much greater thrust and ship speed at lower RPM and noise levels than conventional propellers.