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Passive flow regulating device

  • US 5,655,568 A
  • Filed: 08/08/1995
  • Issued: 08/12/1997
  • Est. Priority Date: 08/08/1995
  • Status: Expired due to Fees
First Claim
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1. A self-regulating flow control valve comprising:

  • a) an outer case, having an interior;

    b) an inlet port, fixedly installed on the outer case;

    c) an outlet port, fixedly installed on the outer case, wherein the outlet port is spaced apart from said inlet port, forming an open channel therebetween;

    d) a float, slidably placed within said outer case and being interposed between said inlet port and said outlet port within said open channel, and having a vertical travel, said float also having a valve seat surface, wherein said valve seat surface is aligned with said outlet port such that said valve seat surface acts as a valve seat within said self-regulating flow control valve;

    e) means for moving said float in proportion to a flow of fluid through said outer case, wherein said means for moving said float includes a variable flow area formed in said open channel, such that said float, operating within said open channel, acts to control the flow of fluid through said self-regulating flow control valve; and

    f) an adjustable means for restricting the vertical travel of said float within said outer case.

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