TIGHT SHUTOFF MICOVALVE

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 17767
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1992
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Orbital Research, Inc.
11000 Cedar Avenue, Suite 461, Cleveland, OH, 44106
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Schmidt
 (216) 791-6720
Business Contact
Phone: () -
Research Institution
N/A
Abstract
MICROVALVES PREVIOUSLY MADE CANNOT BE RELIED UPON FOR LONG TERM TIGHT SHUTOFF. IF MICROFLUIDIC SYSTEMS ARE TO BECOME A REALITY, TIGHT SHUTOFF MUST BE ACHIEVED BY MICROMACHINED VALVES. ALTHOUGH SURFACES ON MICROVALVES IN THEORY SHOULD BE ATOMICALLY SMOOTH, THUS ALLOWING FOR TIGHT SHUTOFF, PRACTICE HAS SHOWN THIS NOT TO BE THE CASE. EVEN THE BEST AMERICAN-MADE MICROVALVE EXHIBITS LEAKAGE RATES IN THE RANGE OF 0.045 CC/MIN. THIS IS MUCH TOO SEVERE TO USE FOR THE STORAGE OF GASES OR FOR OTHER APPLICATIONS WHERE LEAKAGE THROUGH THE VALVE SEAT CANNOT BE TOLERATED. THIS SBIR WILL EXPLORE THE FEASIBILITY OF DEVELOPMENT OF A NOVEL VALVE SEAT WHICH WILL ALLOW A MICROVALVE MANUFACTURED WITH MICROMACHINING TECHNIQUES TO SHUT TIGHT. ANTICIPATED BENEFITS/POTENTIAL APPLICATIONS - PROJECTED RESULTS WILL ALLOW MICROVALVES TO BETTER CONTROL SYSTEMS FOR MICROCOOLING ELECTRONICS, ANTILOCK BRAKING SYSTEMS, MICROBOTIC FLUIDIC CONTROL SYSTEMS, AND IMPLANTABLE DRUG DELIVERY SYSTEMS.

* information listed above is at the time of submission.

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