The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2011
Filed:
Aug. 13, 2007
Harvey B. Jansen, Mesa, AZ (US);
John F. Calleja, Gilbert, AZ (US);
Rickie P. Western, Gold Canyon, AZ (US);
Harvey B. Jansen, Mesa, AZ (US);
John F. Calleja, Gilbert, AZ (US);
Rickie P. Western, Gold Canyon, AZ (US);
Jansen's Aircraft Systems Controls, Inc., Tempe, AZ (US);
Abstract
A reverse flow valve for metering high pressure gaseous media, such as ignition media to the injectors of a scramjet engine in a hyerpsonic flight vehicle, has a metering member that moves parallel to the flow direction of the metered media and throttles the valve in a direction counter to the flow direction. This reduces side loading on the metering member and permits the use of a lighter and smaller actuating mechanism. The metering member can be a pintle having a uniquely configured pintle seat providing bubble tight shut off of the inlet flow without effecting the critical flow contour of the media. The pintle can be driven by a piston that is responsive to push-pull forces of pressurized drive fluid under servo control. The drive fluid is isolated from the gaseous media by a primary seal, which can be seated on the piston without deformation by a seal retainer. The drive fluid can be fuel diverted from the sustained combustion fuel system of the vehicle so that a separate hydraulic system is not required.