Pipes and tubular conduits – With flow regulators and/or baffles – Restrictors
Patent
1992-11-06
1994-07-26
Goldstein, Herbert
Pipes and tubular conduits
With flow regulators and/or baffles
Restrictors
73202, F15D 102, G01F 500
Patent
active
053320050
ABSTRACT:
A device and method for creating favorable conditions for achieving adjustable laminar fluid flow is described. In the practical example of a thermal mass flow meter the laminar flow element contains a porous, open celled, flexible material such as stainless steel mesh. The mesh creates a labyrinthine flow path, for the creation of laminar fluid flow, within the laminar flow element. Means for compressing or elongating the steel mesh renders the laminar flow element adjustable over an extended fluid flow range, and provides optimal fluid dynamics.
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Process Gas Mass Flow Controllers-Part 1, An Overview; May, 1986; Dr. John G. Olin; Sierra Instruments; Carmel Valley, CA, 93924; P. 4, FIG. 8.
Aalborg Instruments & Controls, Inc.
Goldstein Herbert
Parkinson Martin
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