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Screw pump with vapor barrier

  • US 10,443,596 B2
  • Filed: 07/22/2015
  • Issued: 10/15/2019
  • Est. Priority Date: 08/11/2014
  • Status: Active Grant
First Claim
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1. A dual-spindle screw pump having a pump housing for a medium to be conveyed, in particular a foodstuff, comprising:

  • a pump section,at least one bearing section, andat least one gear section,wherein the at least one bearing section and the pump section are constructed separately from one another,wherein the pump section is a product chamber through which the medium is conveyed, comprising;

    a conveyor housing part as a constituent part of the pump section in which two conveying screws that are arranged on shafts are provided,at least one feed section, andat least one removal section as constituent parts of the pump section,wherein the product chamber has comprisesat least one parting line having a connection to the surrounding atmosphere, anda groove as a channel for hot vapor, the groove comprising at least one sealing ring which seals the hot vapor between the product chamber and the surrounding atmosphere,wherein the sealing ring comprises a first wall portion and a second wall portion and the first and the second wall portion are connected by way of a connecting bridge which is arranged at a right angle on the wall portions, andwherein the connecting bridge has openings for vapor to pass through.

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