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 Technology Information 
TitleBidirectional Poppet Valve with Forced Feedback Design
Case Number06UMC087
ManagerWayne McDaniel ( mcdanielwc@missouri.edu )
AbstractExisting metering poppet valves have shown both performance limitation as well as problems with instability. This invention incorporates improvements to a forced feedback configuration to improve performance while achieving stability. This is done by turning geometry through computer simulation and mathematical analysis. Specifically, a variable inlet orifice to the control volume is created as well as a mechanical configuration that allows the orifice to vary with pilot poppet position.

POTENTIAL AREAS OF APPLICATIONS: There is a need to introduce metering poppet valves into hydraulic equipment due to their cost savings and efficiency. This requires developing a fast yet stable valve, which provides low leak and bidirectional flow capabilities.

MAIN ADVANTAGES OF INVENTION: Improved performance and stability of design; Low leak and improved efficiency; Bidirectional flow.

POSSIBLE DISADVANTAGES OF INVENTION: The configuration designed is more costly to manufacture than some other possible forced feedback designs.

STATE OF DEVELOPMENT: Drawings are nearing final review and in the next couple of months a prototype should be built.

FURTHER R&D REQUIRED: After prototyping is complete the valve will be subjected to a battery of standard tests; this test will be used to validate computer models as well as make possible improvements to the valve.

TaxonomyTechnology Categories/HVAC Equipment/Energy
KeywordsUM-Columbia, meter, poppet, valve, computer, simulation, variable, inlet, orifice, pilot, position

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