Patent · US Active

Turboexpander labyrinth seal

US11686390B2 · kind B2 · utility

1Cited by

11References

15Claims

0Family size

Assignee

ACD, LLC · US

Inventors

Duane Bergmann · Big Bear Lake, US
John Park · Irvine, US
Asit Singhal · Lake Forest, US
Geoff Legg · Talbert, US

Key dates

Filing date	Dec 23, 2019
Grant date	Jun 27, 2023
Priority date	—
Expiry date	Nov 28, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J15/4472
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

There is disclosed a labyrinth seal arrangement for gas turboexpanders and the like which reduces process gas losses. The labyrinth seal includes a plurality of axially spaced seal sets with teeth facing a seal member. A plurality of vent ports in between each seal set permits extraction of gradually lower pressure process gas.

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