Source: http://www.google.com/patents/US8113466?dq=5,666,293
Timestamp: 2014-04-20 21:27:02
Document Index: 22752292

Matched Legal Cases: ['application No. 60', 'application No. 60', 'application No. 60', 'art 1', 'art 2', 'art 3', 'art 4']

Patent US8113466 - System and method for drag reduction - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA system and method for drag reduction allows thrust output, fuel efficiency or both to be maximized. Specifically, a rear portion of a body or motor vehicle may be modified to increase thrust output, fuel efficiency or both by creating a stagnation area, a suction inlet and a convex cusp area formed...http://www.google.com/patents/US8113466?utm_source=gb-gplus-sharePatent US8113466 - System and method for drag reductionAdvanced Patent SearchPublication numberUS8113466 B2Publication typeGrantApplication numberUS 12/211,782Publication dateFeb 14, 2012Filing dateSep 16, 2008Priority dateSep 17, 2007Also published asEP2195180A1, EP2195180A4, US20090076787, US20120175910, WO2009039163A1Publication number12211782, 211782, US 8113466 B2, US 8113466B2, US-B2-8113466, US8113466 B2, US8113466B2InventorsDavid T. BirkenstockOriginal AssigneeBirkenstock David TExport CitationBiBTeX, EndNote, RefManPatent Citations (9), Non-Patent Citations (15), Referenced by (3), Classifications (10) External Links: USPTO, USPTO Assignment, EspacenetSystem and method for drag reductionUS 8113466 B2Abstract A system and method for drag reduction allows thrust output, fuel efficiency or both to be maximized. Specifically, a rear portion of a body or motor vehicle may be modified to increase thrust output, fuel efficiency or both by creating a stagnation area, a suction inlet and a convex cusp area formed on the rear portion of the motor vehicle. Increasing the concavity or camber or sharpness of the radius of the stagnation area results in greater local pressure coefficient, which results in greater thrust output. The size and shape of the suction inlet and the convex cusp area will also have an effect on thrust output and fuel efficiency. A width and volume of an airplane fuselage may be increased.
I claim: 1. A method for increasing efficiency of an object moving through a fluid, comprising the steps of:
CROSS REFERENCE TO RELATED APPLICATIONS This is a nonprovisional patent application taking priority from provisional application No. 60/960,139 filed Sep. 17, 2007, which takes priority from nonprovisional application Ser. No. 11/314,525 filed on Dec. 22, 2005, which takes priority from provisional application No. 60/638,351 filed on Dec. 23, 2004 and provisional application No. 60/686,932 filed on Jun. 3, 2005 all of which are hereby incorporated by reference in their entirety.
SUMMARY OF THE INVENTION The present invention provides a system and method for drag reduction that allows thrust output, fuel efficiency or both to be maximized. Specifically, a rear portion of a motor vehicle may be modified to increase thrust output, fuel efficiency or both by creating a stagnation area, a suction inlet and a convex cusp area on the rear portion of the motor vehicle. Increasing the concavity or sharpness of the radius of the stagnation area results in greater thrust output. The size and shape of the suction inlet and the convex cusp area will also have an effect on thrust output and fuel efficiency. A width of an airplane fuselage may be increased by creating a stagnation area, suction inlet and convex cusp area on a rear of the fuselage without a penalty to fuel efficiency.
BRIEF DESCRIPTION OF THE DRAWINGS Advantages of embodiments of the present invention will be apparent from the following detailed description of the exemplary embodiments thereof, which description should be considered in conjunction with the accompanying drawings in which like numerals indicate like elements, in which:
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Aspects of the invention are disclosed in the following description and related drawings directed to specific embodiments of the invention. Alternate embodiments may be devised without departing from the spirit or the scope of the invention. Additionally, well-known elements of exemplary embodiments of the invention will not be described in detail or will be omitted so as not to obscure the relevant details of the invention. Further, to facilitate an understanding of the description, discussion of several terms used herein follows.
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