BO RUAN
Engineering in Malden, MA
License number
Massachusetts 1779001
Issued Date
Apr 19, 1997
Type
Engineer in Training
Address
Address
Malden, MA 02148
Professional information
Split Mechanical Face Seal
US Patent:
6557856, May 6, 2003
Filed:
Jun 19, 2000
Appl. No.:
09/596580
Inventors:
Henri V. Azibert - Windham NH
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Assignee:
A. W. Chesterton Co. - Stoneham MA
International Classification:
F16J 1534
US Classification:
277401, 277408
Abstract:
A split mechanical face seal that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal face. The seal ring faces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a continuous, circumferential groove formed in the seal face of the first seal ring for introducing a fluid to the seal faces of the first and second seal rings to establish a seal therebetween. A split support member having at least two support segments for coupling the first seal ring to the housing or the rotating shaft is also provided. The split face seal is operable as both a contacting and a non-contacting mechanical face seal.
Split Mechanical Face Seal
US Patent:
6131912, Oct 17, 2000
Filed:
Dec 17, 1997
Appl. No.:
8/992753
Inventors:
Henri V. Azibert - Windham NH
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Assignee:
A.W. Chesterton Company - Stoneham MA
International Classification:
F16J 1534
US Classification:
277358
Abstract:
A split mechanical face seal that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal face. The seal ring faces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a continuous, circumferential groove formed in the seal face of the first seal ring for introducing a fluid to the seal faces of the first and second seal rings to establish a seal therebetween. A split support member having at least two support segments for coupling the first seal ring to the housing or the rotating shaft is also provided. The split face seal is operable as both a contacting and a non-contacting mechanical face seal.
Split Mechanical Face Seal With Resilient Pivoting Member
US Patent:
6068263, May 30, 2000
Filed:
Dec 17, 1997
Appl. No.:
8/992613
Inventors:
Henri V. Azibert - Windham NH
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Assignee:
A.W. Chesterton Company - Stoneham MA
International Classification:
F16J 1538
US Classification:
277370
Abstract:
A split mechanical face seal that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal surface. The seal ring surfaces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a mechanism for introducing a fluid to the seal surfaces of the first and second seal rings. The seal further is provided with a system for maintaining co-planar alignment of the seal faces.
Split Mechanical Face Seal
US Patent:
2002009, Jul 25, 2002
Filed:
Apr 5, 2001
Appl. No.:
09/827456
Inventors:
Henri Azibert - Windham NH, US
Bo Ruan - Malden MA, US
Shifeng Wu - Newburyport MA, US
Marlen Clark - Newburyport MA, US
Bo Ruan - Malden MA, US
Shifeng Wu - Newburyport MA, US
Marlen Clark - Newburyport MA, US
Assignee:
A. W. Chesterton Company
International Classification:
F16J015/34
US Classification:
277/370000
Abstract:
A split mechanical face seal that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal face. The seal ring faces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a continuous, circumferential groove formed in the seal face of the first seal ring for introducing a fluid to the seal faces of the first and second seal rings to establish a seal therebetween. A split support member having at least two support segments for coupling the first seal ring to the housing or the rotating shaft is also provided. The split face seal is operable as both a contacting and a non-contacting mechanical face seal.
Split Mechanical Face Seal With Seal Face Fluid Introducing Structure
US Patent:
6059293, May 9, 2000
Filed:
Dec 17, 1997
Appl. No.:
8/992611
Inventors:
Henri V. Azibert - Windham NH
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Assignee:
A.W. Chesterton Company - Stoneham MA
International Classification:
F16J 1516
US Classification:
277358
Abstract:
A split face seal that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal face. The seal ring faces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a mechanism for introducing a fluid to the seal faces of the first and second seal rings and a split support member having at least two support segments for radially supporting the first seal ring to inhibit radial separation of the seal ring segments of the first seal ring.
Split Mechanical Face Seal With Negative Pressure Control System
US Patent:
6068264, May 30, 2000
Filed:
Dec 17, 1997
Appl. No.:
8/992751
Inventors:
Henri V. Azibert - Windham NH
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Bo Ruan - Malden MA
Shifeng Wu - Newburyport MA
Marlen S. Clark - Newburyport MA
Assignee:
A.W. Chesterton Company - Stoneham MA
International Classification:
F16J 1534
US Classification:
277370
Abstract:
A split mechanical face seat that provides fluid sealing between a housing and a rotating shaft includes first and second seal rings each having at least two seal ring segments and a radially extending seal surface. The seal ring surfaces of the seal rings are opposed to one another. One of the seal rings is connected to the rotating shaft to rotate therewith, while the other seal ring is connected to the housing. The split seal also includes a mechanism for introducing a fluid to the seal surfaces of the first and second seal rings. The seal further is provided with a system for fluidly retaining together the seal ring segments of one of the seal rings in a sealing relationship during a negative pressure condition.