Title:
The rotary joint which has a seal controlled alternatively
Document Type and Number:
Japanese Patent JP5933917
Kind Code:
B2
Abstract:
A rotary union includes a non-rotating machine component having a receiving counterbore (114), a media channel opening (112), and a control channel (118). A housing (106) is positioned within the receiving counterbore and has a bore and a control chamber (136) in fluid communication with the control channel. A non-rotating seal member (104) is slidably and sealingly disposed within the bore in the housing and has a media channel in fluid communication with the media channel opening and the receiving counterbore. The non-rotating seal member can be selectively extended or retracted within the bore of the housing, such that selective engagement of a face seal is accomplished under different operating conditions of the rotary union.
Inventors:
David Barras
Greig Aaron Lacroix
Greig Aaron Lacroix
Application Number:
JP2010258972A
Publication Date:
June 15, 2016
Filing Date:
November 19, 2010
Export Citation:
Assignee:
Dublin company
International Classes:
F16L27/08; F16J15/18; F16J15/34
Domestic Patent References:
| JP11336969A | ||||
| JP11082740A | ||||
| JP54024184Y1 | ||||
| JP9014451A | ||||
| JP2008008232A | ||||
| JP8049771A | ||||
| JP54131510A | ||||
| JP2008064274A | ||||
| JP9100976A | ||||
| JP8243877A | ||||
| JP2002054608A | ||||
| JP7092169B2 | ||||
| JP2005249007A | ||||
| JP9152077A |
Foreign References:
| US20090146379 | ||||
| US20070176419 |
Attorney, Agent or Firm:
Takashima Ichi
Kyoko Doi
Mitsunori Kamata
Yaeko Tamura
Kenji Yamamoto
Murata Miyuki
Kyoko Doi
Mitsunori Kamata
Yaeko Tamura
Kenji Yamamoto
Murata Miyuki