University of Missouri

Columbia | Kansas City | Rolla | St. Louis

Technology Information

Title	Bidirectional Poppet Valve with Forced Feedback Design
Case Number	06UMC087
Manager	Wayne McDaniel ( mcdanielwc@missouri.edu )
Abstract	Existing 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.
Taxonomy	Technology Categories/HVAC Equipment/Energy
Keywords	UM-Columbia, meter, poppet, valve, computer, simulation, variable, inlet, orifice, pilot, position

Request Information
If you are a registered user, please login before requesting information by clicking the Login button. If you have not registered, click the Login button for registration information.

©2007, Office of Research and Economic Development
University of Missouri • DMCA and other copyright information.