公开(公告)号：US11635108B2

公开(公告)日：2023-04-25

申请号：US17851922

申请日：2022-06-28

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads.

公开(公告)号：US10948009B1

公开(公告)日：2021-03-16

申请号：US16709425

申请日：2019-12-10

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03 ,  F16C32/06

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads.

公开(公告)号：US20230258229A1

公开(公告)日：2023-08-17

申请号：US18306739

申请日：2023-04-25

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03

CPC classification number: F16C17/035

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads.

公开(公告)号：US20210199154A1

公开(公告)日：2021-07-01

申请号：US17203029

申请日：2021-03-16

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads. A ratio of the pad between the thickness and diameter of a central passage can be set to achieve the change in bearing characteristic.

公开(公告)号：US12018715B2

公开(公告)日：2024-06-25

申请号：US18306739

申请日：2023-04-25

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03

CPC classification number: F16C17/035

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads.

公开(公告)号：US20220074317A1

公开(公告)日：2022-03-10

申请号：US17480642

申请日：2021-09-21

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Juha Tuomas Saari ,  George C. Hansen

IPC: F01D25/00 ,  F01D5/02 ,  C09D5/24 ,  F04D29/02 ,  F04D29/043 ,  H02K1/22 ,  H02K17/16 ,  H02K15/00

Abstract: A rotor shaft for a high speed motor that has a coating that is secured to a shaft body. The coating and the shaft body are formed from dissimilar materials. More specifically, the coating may be an alloy material, such as, for example, a copper alloy, while the shaft body may be a steel material. According to certain embodiments, the alloy material of the coating may be secured to at least a portion of a rotor body blank in a solution treated condition via a low temperature welding procedure. Additionally, the coating may be hardened, such as for example, through the use of an age hardening process. The coating and the rotor body blank may be machined together to form the rotor shaft. According to certain embodiments, such machining may configure the rotor shaft for use with a turbo-compressor that is configured for air compression.

公开(公告)号：US20220325746A1

公开(公告)日：2022-10-13

申请号：US17851922

申请日：2022-06-28

Applicant: Ingersoll-Rand Industrial U.S., Inc

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads. A ratio of the pad between the thickness and diameter of a central passage can be set to achieve the change in bearing characteristic.

公开(公告)号：US11371552B2

公开(公告)日：2022-06-28

申请号：US17203029

申请日：2021-03-16

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： James Lawrence Robb ,  Andrew J. Austin ,  Patrick Lynah

IPC: F16C17/03

Abstract: A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads.

公开(公告)号：US11125107B2

公开(公告)日：2021-09-21

申请号：US16377950

申请日：2019-04-08

Applicant: INGERSOLL-RAND INDUSTRIAL U.S., INC.

Inventor： James Lawrence Robb ,  Juha Tuomas Saari ,  George C. Hansen

IPC: F01D25/00 ,  F01D5/02 ,  C09D5/24 ,  F04D29/02 ,  F04D29/043 ,  H02K1/22 ,  H02K17/16 ,  H02K15/00 ,  H01B1/02

Abstract: A rotor shaft for a high speed motor that has a coating that is secured to a shaft body. The coating and the shaft body are formed from dissimilar materials. More specifically, the coating may be an alloy material, such as, for example, a copper alloy, while the shaft body may be a steel material. According to certain embodiments, the alloy material of the coating may be secured to at least a portion of a rotor body blank in a solution treated condition via a low temperature welding procedure. Additionally, the coating may be hardened, such as for example, through the use of an age hardening process. The coating and the rotor body blank may be machined together to form the rotor shaft. According to certain embodiments, such machining may configure the rotor shaft for use with a turbo-compressor that is configured for air compression.