Integrated electrically operable micro-valve

Details Integrated electrically operable micro-valve Integrated electrically operable micro-valve

1997-09-25

2000-11-21

Lee, Kevin

Valves and valve actuation

Heat or buoyancy motor actuated

25112906, 338 23, F16K 3102

Patent

active

061491233

ABSTRACT:
Integrated, electrically operable micro-valves are formed to control fluid flow and pressure. These valves convert electrical energy to mechanical energy through an energy conversion device having a sealed cavity with a flexible wall. The sealed cavity contains a fluid that expands and contracts as it is heated or cooled, thus causing the flexible wall to move. Movement of this wall or membrane is used to move a valve element and dynamically control the opening or closing of a valve port over a predetermined range.

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