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公开(公告)号：WO2020106279A1
公开(公告)日：2020-05-28
申请号：PCT/US2018/062033
申请日：2018-11-20
Applicant: DRESSER-RAND COMPANY
Inventor： MOHR, Byron L. , BARNES, Tristen , KUZDZAL, Mark J. , GUERRA, Christopher , MILLER, Harry Francis
Abstract: A bearing and/or seal assembly (10) where pressurized gas (e.g., air) may be arranged to produce a contact-free bearing and/or seal is provided. The assembly includes a permeable body (12) including structural features (13) selectively engineered to convey a pressurized gas (Ps) from an inlet side (20) side of the permeable body to an outlet side (22) of the permeable body to form an annular film of the pressurized gas relative to the rotatable shaft. Disclosed embodiments may be produced by way of three-dimensional (3D) Printing/Additive Manufacturing (AM) technologies with practically no manufacturing variability; and may also cost-effectively and reliably benefit from the relatively complex geometries and the features and/or conduits that may be involved to, for example, form the desired distribution pattern or impart a desired directionality to the pressurized gas conveyed through the permeable body of the bearing and/or seal assembly.
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2.发明申请
公开(公告)号：WO2019018252A1
公开(公告)日：2019-01-24
申请号：PCT/US2018/042209
申请日：2018-07-16
Applicant: DRESSER-RAND COMPANY
Inventor： MOHR, Byron L. , GUERRA, Christopher , MACWILLIAMS, Scott
Abstract: An acoustic attenuator for a turbomachine and methodology for additively manufacturing the acoustic attenuator are provided. The acoustic attenuator includes an annular body (202) having an outer surface (204) and an inner surface (206). The inner surface of the annular body may define a bore (208) extending along a longitudinal axis (209) of the acoustic attenuator between a first end and a second end of the acoustic attenuator. The annular body may be formed by a plurality of axially-successive cross-sectional layers (e.g., 632, 634, 636) unitized between the first end and the second end of the acoustic attenuator. The plurality of axially-successive cross-sectional layers may be transversely disposed relative to the longitudinal axis of the acoustic attenuator. At least some axially-successive cross-sectional layers of the plurality of axially-successive cross-sectional layers (e.g., 632, 634, 636) defining a pocket (214) disposed between the outer surface and the inner surface of the annular body. At least a segment of a periphery of the pocket comprises two sides (2, 3) arranged to join at a common end point to form an apex (5) of the pocket.
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3.发明公开
公开(公告)号：EP3655636A1
公开(公告)日：2020-05-27
申请号：EP18749687.2
申请日：2018-07-16
Applicant: Dresser Rand Company
Inventor： MOHR, Byron L. , GUERRA, Christopher , MACWILLIAMS, Scott
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公开(公告)号：EP3867543A1
公开(公告)日：2021-08-25
申请号：EP18815475.1
申请日：2018-11-20
Applicant: Dresser-Rand Company
Inventor： MOHR, Byron L. , BARNES, Tristen , KUZDZAL, Mark J. , GUERRA, Christopher , MILLER, Harry Francis
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