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Disc valve

  • US 5,219,148 A
  • Filed: 10/22/1992
  • Issued: 06/15/1993
  • Est. Priority Date: 10/31/1991
  • Status: Expired due to Fees
First Claim
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1. A disc valve, which comprises:

  • (a) a housing having an inlet and an outlet, and having formed in it a disc chamber in communication with the inlet and the outlet,(b) fixed and rotatable control discs which are arranged in the disc chamber, the discs being in contact with one another via cooperating sealing faces and each of the control discs being provided with at least one control opening, the control openings of the two control discs being continuously adjustable between an aligned open position and a non-aligned closed position,(c) a device for biasing the rotatable control disc towards the fixed control disc, the biasing device comprising;

    (i) a piston which acts on the side of the rotatable control disc remote from the sealing face and which extends in a cylinder bore of the housing, and (ii) a connecting line which connects an operating space of the biasing device, defined by the cylinder bore and the piston, to the outlet of the housing.

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