METERING VALVE

• US 3,727,882 A
• Filed: 08/19/1971
• Issued: 04/17/1973
• Est. Priority Date: 08/19/1971
• Status: Expired due to Term

• Current Assignee: Glenn A. Burris, Joseph P. Lares
• Original Assignee: Glenn A. Burris, Joseph P. Lares
• Inventors: Burris, Glenn A., Lares, Joseph P.
• Primary Examiner(s): Cohan, Alan
• Assistant Examiner(s): Michalsky, Gerald A.
• Application Number:
  US05/173,035
• Time in Patent Office: 607 Days
• Field of Search: 137/556 251/208,209,340,344,345,341,343,310,311
• US Class Current: 251/209
• CPC Class Codes: F16K 5/10 Means for additional adjustment of the rate of flow
• CPC Class Codes: Y10T 137/8275 Indicator element rigidly carried by the movable element whose position is indicated

Abstract

The present invention relates to a metering valve in which a valve plug has an annular groove tapering from zero width to a full width with the groove communicating with a port in a rotatable valve seat member. The relative position of the groove with respect to the port determines the size of the opening through which fluid is to pass to permit any desired degree of metering from 0 to 100 percent. The valve plug is semi-spherical in the preferred form of the invention and is conical in a modified form of the invention. In another modified form of the invention the valve seat member is provided with a scale to indicate the relative position of the valve.

Claims

1. A metering valve comprising a body having a bore extending therethrough, an outwardly flaring conical seat formed in said body at one end of said bore and coaxial with said bore, a port extending completely across said conical seat communicating with said bore at one end of said port, a pair of annular recesses formed in each end of said body coaxial with said bore and communicating with said bore, a valve plug mounted for rotation in said bore and having a pair of cylindrical portions arranged in respective aligned relation to said recesses, an O-ring seal in each of said recesses in sealing engagement with the respective cylindrical portion of said valve plug , a conical portion on said valve plug between said cylindrical portions engaging said seat and having an annular groove formed therein tapering in both depth and width and communicating with said port, an axial bore in one end of said plug communicating with said groove, an axial bore in the other end of said plug communicating with said bore in said body between said recesses and communicating with said port, said plug on rotation in said body adjusting the position of said groove with respect to said port to vary the flow from said groove to said port from zero to one hundred percent, and means for detachably securing said plug in said body for rotation therein.