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:
Aug. 01, 2017
Filed:
Feb. 03, 2012
Douglas Brunner, Bear, DE (US);
Manish W. Bajpai, Newark, DE (US);
John Adam C. Kinzey, Wilmington, DE (US);
Shane Marcks, Chester Springs, PA (US);
Ajay K. Prasad, Newark, DE (US);
Suresh G. Advani, Newark, DE (US);
Douglas Brunner, Bear, DE (US);
Manish W. Bajpai, Newark, DE (US);
John Adam C. Kinzey, Wilmington, DE (US);
Shane Marcks, Chester Springs, PA (US);
Ajay K. Prasad, Newark, DE (US);
Suresh G. Advani, Newark, DE (US);
University of Delaware, Newark, DE (US);
Abstract
Devices, systems, and methods for variable flow rate fuel ejection are disclosed. A variable flow rate ejector comprises primary and secondary inlets, primary and secondary nozzles, and a needle. The primary nozzle is connected to receive a first fluid from the first inlet chamber and transmit the first fluid through a primary nozzle opening. The needle is disposed within the primary nozzle opening and is axially movable to vary an area of primary nozzle opening. The primary nozzle opening and the needle are sized to make the flow of the first fluid have a supersonic speed. The secondary inlet opens into a second inlet chamber positioned outside the primary nozzle opening. A portion of the second fluid is entrained in the flow of the first fluid from the primary nozzle. The secondary nozzle opening is sized to make the flow of the first and second fluids have a subsonic speed.