# US 2014/0151518 A1 · Three-Way Mount Bracket for Aircraft Cabin Air Supply System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0151518 A1 - Document ID: US20140151518A1 - Status: Published application - Kind: A1 - Application number: 13/705,490 - Filed: 2012-12-05 - Published: 2014-06-05 - Earliest claimed: 2012-12-05 - Assignees: Hamilton Sundstrand Corporation - Applicants: Hamilton Sundstrand Corporation - Inventors: Mark Vignali; Brent J. Merritt - Web page: https://patentgrep.com/patent/US20140151518A1 ## CPC - B64D 13/00: Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space - B64C 1/00: Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like - B64D 13/06: the air being conditioned (pressurising B64D13/02) - F16L 3/00: Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets (anchors for holding pipes on or under the ground F16L1/06; noise absorbers in the form of specially adapted hangers or supports F16L55/035; arrangements specially adapted for supporting insulated bodies F16L59/12) - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - B64C: AEROPLANES; HELICOPTERS - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## Abstract A mount bracket for use in a cabin air supply system for an aircraft has three legs extending from a cylindrical central bore and at a first axial end of the bracket. There are two legs at an opposed second axial end. A central leg is on the first axial end, and two of the legs are positioned at each of two lateral sides at first and second ends. The legs extend to feet. Strengthening legs connect feet at each of the lateral sides, and to the central leg foot. A thickness of the strengthening legs connected to the central leg is defined as a first dimension. A distance along the first axial end between a laterally outermost portion of the feet at each of the lateral sides is defined as a second dimension. A ratio of the first dimension to the second dimension is between 0.032 and 0.037. ## Claims ### Claim 1 A mount bracket for use in a cabin air supply system for an aircraft comprising: three legs extending from a cylindrical central bore and at a first axial end of said bracket, with an axial direction defined by a central axis of said bore, and two legs at an opposed second axial end, with a central leg on said first axial end, and two of said legs being positioned at each of two lateral sides of said central leg with one on each of said first and second ends, said legs each extending to a foot having a bolt hole, and strengthening legs connecting said feet at each of said lateral sides, and said strengthening legs connecting each of said feet at said lateral sides of said first axial end to a foot on said central leg, and a thickness of said strengthening legs connected to said feet on said central leg is defined as a first dimension, and a distance along said first axial end between a laterally outermost portion of said feet at said each of said lateral sides defined as a second dimension, and a ratio of said first dimension to said second dimension is between 0.032 and 0.037. ### Claim 2 (depends on 1) The mount bracket as set forth in claim 1, wherein a fillet radius merging said legs at said second axial end into a flat at said foot, and said bolt hole in said legs at said second axial end having a diameter, and a ratio of said fillet radius at said feet at said second axial end to said bolt hole diameter is between 0.49 and 0.74. ### Claim 3 (depends on 2) The mount bracket as set forth in claim 2, wherein a fillet radius merges one of said legs at said lateral sides, and at said first axial end into a flat at said foot, and a ratio of said fillet radius of said feet at said lateral sides of said first axial end to a diameter of said bolt holes in said legs at said lateral side of said first axial end is between 1.05 and 1.4. ### Claim 4 (depends on 3) The mount bracket as set forth in claim 3, wherein said central leg has a bolt access cutout cut into a face of said central leg, and at a radius, and surrounding said bolt hole associated with said central leg, and a ratio of said radius of said bolt access cutout to a diameter of said bolt hole in said central leg being between 1.76 and 2.22. ### Claim 5 (depends on 4) The mount bracket as set forth in claim 4, wherein a third dimension is a lateral length of said central leg at an end of said access cutout remote from the bolt hole, and a ratio of said first dimension to said third dimension is between 0.23 and 0.27. ### Claim 6 (depends on 5) The mount bracket as set forth in claim 5, wherein a fillet radius merges said bolt access cutout into a flat at said foot, and a ratio of said fillet radius merging said bolt access cutout into said foot to said diameter of said bolt hole in said central leg being between 0.17 and 0.37. ### Claim 7 (depends on 1) The mount bracket as set forth in claim 1, wherein said feet have an outwardly extending cylindrical surface, and said outwardly extending cylindrical surfaces extend axially away from an axial end of said feet strengthening legs at said first axial end. ### Claim 8 A cabin air supply system for an aircraft comprising: an air cycle machine; a condenser, and there being two outlet lines from said condenser; a pair of cabin air supply compressors being mounted by brackets to a mount bracket, and said mount bracket further mounting a forward manifold, said forward manifold providing a portion of a flow line for each of said outlets of said condenser, and further receiving a portion of a flow line supplying bearing cooling air tapped from a line downstream of said pair of cabin air supply compressors back to bearings of said cabin air supply compressors, and downstream of a heat exchanger; and said mount bracket including three legs extending from a cylindrical central bore and at a first axial end of said bracket, with an axial direction defined by a central axis of said bore, and two legs at an opposed second axial end, with a central leg on said first axial end, and two of said legs being positioned at each of two lateral sides of said central leg with one on each of said first and second ends, said legs each extending to a foot having a bolt hole, and strengthening legs connecting said feet at each of said lateral sides, and said strengthening legs connecting each of said feet at said lateral sides of said first axial end to a foot on said central leg, and a thickness of said strengthening legs connected said foot on said to central leg is defined as a first dimension, and a distance along said first axial end between a laterally outermost portion of said feet at said each of said lateral sides defined as a second dimension, and a ratio of said first dimension to said second dimension is between 0.032 and 0.037. ### Claim 9 (depends on 8) The system as set forth in claim 8, wherein a fillet radius merging said legs at said second axial end into a flat at said foot, and said bolt hole in said legs at said second axial end having a diameter, and a ratio of said fillet radius at said legs at said second axial end to said bolt hole diameter is between 0.49 and 0.74. ### Claim 10 (depends on 9) The system as set forth in claim 9, wherein a fillet radius merges one of said legs at said lateral sides, and at said first axial end into a flat at said feet, and a ratio of said fillet radius of said feet at said lateral sides of said first axial end to a diameter of said bolt holes in said legs at said lateral side of said first axial end is between 1.05 and 1.4. ### Claim 11 (depends on 10) The system as set forth in claim 10, wherein said central leg has a bolt access cutout cut into a face of said central leg, and at a radius, and surrounding said bolt hole associated with said central leg, and a ratio of said radius of said bolt access cutout to a diameter of said bolt hole in said central leg being between 1.76 and 2.22. ### Claim 12 (depends on 11) The system as set forth in claim 11, wherein a third dimension is a lateral length of said central leg at an end of said access cutout remote from the bolt hole, and a ratio of said first dimension to said third dimension is between 0.23 and 0.27. ### Claim 13 (depends on 12) The system as set forth in claim 12, wherein a fillet radius merges said bolt access cutout into a flat at said foot, and a ratio of said fillet radius merging said bolt access cutout into said foot to said diameter of said bolt hole in said central leg being between 0.17 and 0.37. ### Claim 14 (depends on 8) The system as set forth in claim 8, wherein said feet have an outwardly extending cylindrical surface, and said outwardly extending cylindrical surfaces extend axially away from an axial end of said strengthening legs at said first axial end.