Resources Contact Us Home
Flow control valve capable of adjusting fluid flow characteristics in accordance with a position of a valve element in a bore

Image Number 2 for United States Patent #6328535.

A flow control valve has body (20) containing a "bucket" shaped valve element (1) that moves in a bore (2). The valve element (1) has a discharge orifice (8) through which a needle valve (9) projects. Movement of the valve element (1) within the bore (2) adjusts the annular clearance between the orifice (8) and the needle (9) thereby varying the pressure drop across the valve element (1) and the rate of the main flow through the valve. The inlet (4a) to the body (20) is located upstream of the valve element. With this arrangement, the spill flow rate is adjusted by movement of the valve element (1) within the bore (2). However, in all cases the main flow of fluid passes through the orifice (8) of the valve element (1) through the bore (2) to the outlet (10), thereby avoiding the formation of stagnant "pools" of fluid within the bore (2) of the flow control valve.

  Recently Added Patents
Schottky diode and method of manufacture
Method and system for detecting data modification within computing device
Controlling access to resources on a network
Method for counting and segmenting viral particles in an image
Processing financial documents
Method and device for monitoring and analyzing signals
  Randomly Featured Patents
Architectural panel with wood grain and crooked line cutout
Paroxetine in the treatment of depression associated with withdrawal from heroin abuse and post-traumatic stress disorder
System and method for editing image data
Handheld electronic device including simplified enabling and disabling of short-range wireless communications element, and associated method
Organic light emitting display and its driving method
Reducing resist residue defects in open area on patterned wafer using trim mask
Razor handle
Power integrated circuit ("PIC") structure with a vertical IGBT
Bookmaking apparatus and image forming system using the same
Method for preparing .alpha.-substituted .omega.-hydroperfluoroalkanes