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Valve and an atomization chamber

  • US 5,103,858 A
  • Filed: 04/29/1991
  • Issued: 04/14/1992
  • Est. Priority Date: 05/05/1990
  • Status: Expired due to Fees
First Claim
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1. A valve comprising a conduit, a valve member having surfaces and a sealing means arranged around its peripheral edge, the valve member being pivotably mounted in the conduit such that it is movable between a first position in which it prevents a flow of matter through the conduit and a second position in which it allows the flow of matter through the conduit, a protecting member which is positioned in the conduit upstream of the valve member with respect to the flow of matter through the conduit, the protecting member being positioned in the conduit such that when the valve member is in its second position the protecting member is positioned immediately upstream of a portion of the peripheral edge of the valve member to prevent the flow of matter impinging upon the sealing means, a cooling fluid supply arranged to supply cooling fluid to the protecting member, the protecting member having at least one cooling fluid passage arranged to direct cooling fluid over at least one surface of the valve member exposed to the flow of matter through the conduit when the valve member is in the second position.

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