Patent · US Active

Double-seat valve with a seat-cleaning function

US9546735B2 · kind B2 · utility

1Cited by

5References

16Claims

0Family size

Assignee

GEA Tuchenhagen GmbH · DE

Inventors

Jens Burmester · Grambek, DE
Arne Schulz · Hamburg, DE
Matthias Südel · Ratekau, DE
Bastian Tolle · Höchst im Odenwald, DE

Key dates

Filing date	Jun 16, 2012
Grant date	Jan 17, 2017
Priority date	—
Expiry date	Jun 16, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/88038
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A double-seat valve has a seat-cleaning function and ensures that the seat-cleaning flow is conducted into and out of the leakage hollow space with as little turbulence as possible. The valve reliably prevents a pressure-increasing direct action upon the seat regions, even in the event that the cross-sectional area of the drain bore is smaller than that of the largest pipeline that can be connected to the valve. This is achieved in that a region of extension of the deflection surface that faces away from the radially outer end of the deflection surface delimits the remaining region of the opening in its entirety and opens out from the second closing element at an end-face and radially inner end of the second closing element, facing the first closing element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.