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Screen for inlet opening of a pump

  • US 5,759,398 A
  • Filed: 08/28/1996
  • Issued: 06/02/1998
  • Est. Priority Date: 07/12/1996
  • Status: Expired due to Term
First Claim
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1. A suction sieve for shielding an inlet opening of a suction line of a pump such as a cooling water pump of an emergency cooling system of a nuclear power station, the suction sieve comprising a substantially cylindrical sieve body having a central suction chamber that can be connected to the suction line, the sieve body comprising several annular, modular cassette units which are stacked in the axial direction and coupled to one another, each cassette unit including several sieve pockets which are circumferentially spaced apart, extend in a substantially radial direction, and open toward an outer periphery of the sieve body, each sieve pocket being surrounded by discharge gaps that are in flow communication with the central suction chamber.

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