Dual Mode Electrical Accumulator Unit (DMEAU)

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-10-M-2026
Agency Tracking Number: F093-173-1042
Amount: $99,986.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: AF093-173
Solicitation Number: 2009.3
Small Business Information
UES, Inc.
4401 Dayton-Xenia Road, Dayton, OH, 45432
DUNS: 074689217
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Hiroyuki Kosai
 Senior Physicist
 (937) 426-6900
Business Contact
 Bryce Skinn
Title: Business Relations Manager
Phone: (937) 426-6900
Email: bskinn@ues.com
Research Institution
Electrical motors are rapidly replacing hydraulic motors in flight actuators for military/civil aircraft applications. In hydraulic systems, accumulators are used to store regenerative energy from the hydraulic actuators as well as to supply peak energy demands of these actuators in response to demands of the flight control system. No electrical analog (Electrical Accumulator Unit) exists in production although some prototype hardware has been demonstrated to store/supply transient electric energy (~100 Kwatt spikes). Advanced EAU designs merge the emergency power function (battery energy storage) with the transient electrical energy function. This latter design also includes the battery charging function. At the same time, military aircraft use Inverter/Converter/Control (ICC) units to supply power to electrical machines for engine starting and to supply 270 VDC power to the aircraft when the engines are running. For this proposal, a feasibility study/preliminary design effort will be undertaken to merge the advanced EAU with the ICC , both electrically and physically. The resultant Dual Mode EAU (DMEAU) will have the following functions: emergency power, transient energy supply/storage, battery charging, engine starting and 270 VDC aircraft power generation. The DMEAU will fit into the current space of the ICC and utilized the current ICC cooling. BENEFIT: This feasibility study/preliminary design will clearly show the viability of combining the functions which are now housed in the separate EAU and ICC Units. The savings will be space/weight/cost (parts count reduction). The Dual Mode Electrical Accumulator Unit could be applied to several thousand high performance aircraft.

* information listed above is at the time of submission.

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