Screw Pump with Vapor Barrier

• US 20160061200A1
• Filed: 07/22/2015
• Published: 03/03/2016
• Est. Priority Date: 08/11/2014
• Status: Active Grant

• Current Assignee: Jung & Co. Gerätebau, GmbH
• Original Assignee: Jung & Co. Gerätebau, GmbH
• Inventors: Christov, Weshen, Jung, Hans
• Granted Patent: US 10,443,596 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F01C 19/005 Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements vane construction F01C21/0809; piston rings and ring sealings of similar construction in general F16J9/00
• CPC Class Codes: F04C 13/00 Adaptations of machines or pumps for special use, e.g. for extremely high pressures of pumps specially adapted for elastic fluids F04C25/00
• CPC Class Codes: F04C 15/0007 Radial sealings for working fluid
• CPC Class Codes: F04C 15/0026 Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
• CPC Class Codes: F04C 15/0034 for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
• CPC Class Codes: F04C 15/06 Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• CPC Class Codes: F04C 2/16 with helical teeth, e.g. chevron-shaped, screw type for non-parallel axes of movement F04C3/00
• CPC Class Codes: F16J 15/04 without packing between the surfaces, e.g. with ground surfaces, with cutting edge

Abstract

A dual-spindle screw pump having a pump housing (11) for a medium to be conveyed, in particular a foodstuff, which has a pump section (12), at least one bearing section (16) and at least one gear section (17), wherein the at least one bearing section (16) and the pump section (12) are constructed separately from one another, wherein the pump section is a product chamber (26) through which the medium is conveyed, having a conveyor housing part (13) as a constituent part of the pump section (12) in which two conveying screws (20, 21) that are arranged on shafts (18, 19) are provided, having at least one feed section (22) and at least one removal section (23) as constituent parts of the pump section (12), preferably each having a connection flange (24, 25), wherein the product chamber (26) has at least one parting line (28) having a connection to the surrounding atmosphere (29), which is provided with a vapor barrier (30) having a groove (31) as the vapor channel (38), characterized in that there is provided in the groove (31) at least one seal (40) which seals the vapor channel (38) off from the product chamber (26) and from the surrounding atmosphere (29).

Claims