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Latching Miniature Valve

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
54891
Program Year/Program:
2001 / SBIR
Agency Tracking Number:
992424
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
TINI ALLOY CO.
1619 Neptune Drive San Leandro, CA 94577
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2001
Title: Latching Miniature Valve
Agency: NASA
Contract: N/A
Award Amount: $0.00
 

Abstract:

A tightly-sealing, non-corrosive miniature valve that can be baked and requires power only during on/off switching has many applications, especially in the semiconductor manufacturing industry.A tight seal (10e-10 SCCM) requires a large force. Ability to tolerate bake-out, corrosion resistance, and cleanliness (freedom from organic and hydrocarbon contaminants) limits suitable materials to stainless steel and similar metals.Large force, small volume, and light weight actuation are feasible using electrically-powered shape-memory alloy (SMA) devices. Incorporating a latching mechanism, so that power is required only during on/off switching, compensates for the large power requirement of SMA actuators.The proposed valve consists of a welded extensible tube containing a poppet and matching orifice. When closed, the poppet and orifice are pressed together by a bistable spring. The bistable spring latch mechanism is moved from closed to open position by a shape-memory actuator that elongates the extensible tube. A second SMA actuator reverses the latch from the open to the closed position. In Phase I, an all-metal poppet/orifice combination will be developed to give low leak rates, forceful SMA actuators will be designed and built, a suitable latching device will be designed, and proof-of-concept latching valves will be fabricated.

Principal Investigator:

A. 1. Johnson
President
tini1@holonet.net

Business Contact:

Eric Strauss
Secretary - Treasurer
5104839676
tini1@holonet.net
Small Business Information at Submission:

TiNi Alloy Company
1621 Neptune Drive San Leandro, CA 94577

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No