SBIR-STTR Award

BOSCH Aerospace, Inc., a service connected disabled veteran-owned small business, is pleased to submit this proposal to develop and demonstrate an efficient, low-noise, low-maintenance air management system for shipboard ventilation. The concept is adapted from the Vertical Takeoff and Landing aircraft Cycloidal Propeller (CycloProp) development currently underway in SBIR Phase II Contract N68335-00-C-0201. CycloProp geometry places wing sections into rotation in a paddlewheel manner. In this geometry, air velocity is equal at all points across each wing's span. During rotation, the wing's angle-of-attack is changed in the sector of rotation requiring air acceleration. The result is very high-thrust and low noise at rotational speeds of about 20% of conventional propellers. CycloProp has demonstrated thrust of over 12 lbs/HP versus about three pounds for conventional propellers. This low-speed, high-thrust capability means less wear on bearings, lower energy consumption, low noise and lower maintenance. The research phases are: Engineering/Design, Fabrication/Integration, Testing/Demonstration. The project documentation will include design drawings, test reports, video, photographs and monthly Cost Performance Reports. Success will be exploited in the commercial sector where

Benefits:
Success will be exploited in the commercial sector where low-noise, efficient air movement systems are in demand. Benefits include low noise, low power consumption, high efficiency, and low wear on components, thus low maintenance. Commercial applications include worldwide forced air heat and cooling, electronic cooling applications in space, and other high-volume, low-pressure air or gas movement applications.

Keywords:
Cycloidal Propulsion, Cycloidal Propellers, Cyclogyro, Curtate Cycloid, curtate trochold, low-pitch, high-thrust, VTOL