Patent · US Active

Rotary feed-through with leakage sensor

US7882853B2 · kind B2 · utility

1Cited by

8References

11Claims

0Family size

Assignee

Ott-Jakob GmbH & Co. Spanntechnik KG · DE

Inventors

Peter Mohr · Waiblingen, DE
Wolfgang Bechteler · Biessenhofen, DE
Stephan Gast · Schwabsoien, DE
Hans Leidl · Kempten, DE

Key dates

Filing date	Jul 27, 2006
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Sep 14, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/86268
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention pertains to a rotary feed-through for supplying a fluid to a rotating machine part with a hollow shaft (3) that is rotatably supported in a housing (1, 2) and has a first sliding surface (29), with a sealing bushing (31) that is arranged in a rotationally fixed fashion within the housing (1, 2) coaxial to the shaft (3) and has a second sliding surface (30) for contacting the first sliding surface (29), and with a collecting chamber (27) that is arranged within the housing (1, 2) and serves for collecting the leakage fluid escaping between the two sliding surfaces (29, 30). The leakage fluid collected within the rotary feed-through can be monitored with the aid of a detection channel (26, 33, 34, 37, 39, 47) in the housing (1, 2) that is connected to the collecting chamber (27) and contains a leakage sensor (41).

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