Trane International Inc.

Other

Donald Lee Hill

Jay H Johnson

Sung Hwa Jeung

Matthew Cambio

Joseph M Heger

Charles Roesler

A compressor includes a housing, a shaft that is rotated relative to the housing to compress a working fluid, and a foil bearing that supports the shaft. The foil bearing includes a top foil. The foil bearing is a foil gas bearing that is backed up by a ball bearing, or a mesh foil bearing with an actuator to compress a wire mesh dampener. A heat transfer circuit includes a compressor and a working fluid. The compressor includes a shaft that is rotated to compress the working fluid, and a foil bearing for supporting the shaft as it rotates.

Bearing for supporting a rotating compressor shaft

A porous gas bearing is disclosed. The porous gas bearing includes a housing having a fluid inlet and an aperture. A porous surface layer is disposed within the housing surrounding the aperture in a circumferential direction. The porous surface layer is in fluid communication with the fluid inlet. A damping system includes a damping system including a biasing member, the biasing member being disposed in a passageway that extends along the longitudinal direction of the aperture and circumferentially about the aperture, wherein the biasing member is arranged radially outward from the porous surface layer.

Porous gas bearing

A porous gas bearing is disclosed. The porous gas bearing includes a housing having a fluid inlet and an aperture. A porous surface layer is disposed within the housing surrounding the aperture in a circumferential direction. The porous surface layer includes a plurality of segments arranged in a longitudinal direction of the aperture. The porous surface layer is in fluid communication with the fluid inlet. A damping system includes a plurality of dampers. The plurality of dampers is disposed circumferentially about the aperture. The plurality of dampers is arranged in between a first segment of the plurality of segments of the porous surface layer and a second segment of the plurality of segments of the porous surface layer.

A door frame guard comprising, in accordance with an apparatus of the preferred embodiment of the present invention, a plurality of interface members and a linking member flexibly connected to the plurality of interface members. Each interface member of the plurality of interface members is sized interface appropriately with a respective surface of a door frame without extending into door frame corners or about door frame edges. Adjacent interface members define gaps which extend between a top edge and a bottom edge of the door frame guard in a direction substantially parallel to side edges of the door frame guard. The gaps and linking member enable adjacent interface members to rotate relative to one another and relative to the other interface members. According to a method of the preferred embodiment of the present invention, the plurality of interface members of the door frame guard reside adjacent to surfaces of an upright side of a door frame and interact magnetically with the surfaces to removably secure the door frame guard to the door frame. When so positioned the gaps of the door frame guard reside adjacent to and align with corners and edges of the door frame and the linking member spans the door frame from front to back within the door frame opening, thereby enabling the front surface of the linking member to protect the paint on the corners and edges of the door frame from bumps, bangs, and scrapes which may tend to chip or wear away the paint.

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Cornelius, NC, United States of America

Donald Lee Hill