Bearing Patents (Class 73/114.81)
  • Patent number: 10737358
    Abstract: The metallurgical composition of a machine surface may be determined. Based on the composition of the surface layer and its substrate materials, a mixture of pure metal nanoparticles, each coated with a monomolecular organic layer adsorbed on its surface can be mixed with catalysts, reaction initiators, and/or other necessary ingredients for the repair action of the machine surface, depending on the specific machine, operational type, and/or the nature of the damage. The nanoparticles are applied to the machine surface, the organic monolayer wears away from the nanoparticles under shear stresses and the nanoparticles adhere to the machine surface to form a repair layer on the machine surface, thereby providing a repaired surface.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: August 11, 2020
    Assignee: The George Washington University
    Inventor: Stephen Hsu
  • Patent number: 10371199
    Abstract: In various aspects, an engine crankshaft is disclosed. The engine crankshaft comprises a rear bearing journal having an output end. The rear bearing journal defines a cylindrical cavity extending from the output end into the bearing journal. The cavity may intersect oil channels disposed within the crankshaft. A sensor capsule may be disposed within the cavity. The engine crankshaft may comprise at least one torque sensor operatively coupled to the rear bearing journal. The at least one torque sensor may be coated with a sealant to prevent contact with pressurized engine oil. The at least one torque sensor may generate a torque signal corresponding to a torque exerted on the rear bearing journal. The torque exerted on the rear bearing journal is indicative of a torque output of an engine. The at least one torque sensor may be electrically coupled to electrical elements within the sensor capsule.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: August 6, 2019
    Assignee: TELEDYNE LECROY, INC.
    Inventor: Harold G. Watts, Jr.
  • Patent number: 9568397
    Abstract: A device and method to inspect the sensitive distances of crankshaft or any other rotating axel with electrical measuring method and controlling the sensitivity and critical points according to desired explained spans. Its electronic system is flexible and has the possibility to coordinate with various control systems.
    Type: Grant
    Filed: August 4, 2013
    Date of Patent: February 14, 2017
    Inventor: Abbas Hesani
  • Patent number: 8966967
    Abstract: A system for determining a health of a bearing associated with a connecting rod is provided. The system includes a sensor associated with the connecting rod and remotely disposed relative to the bearing of the connecting rod. The sensor is configured to generate a signal indicative of a temperature of the bearing. The system includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the bearing. The controller further determines a health of the bearing as a function of the signal of the temperature of the bearing.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: March 3, 2015
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Colin P. Garner, Andrew M. Williams, Michael Gore
  • Patent number: 8904856
    Abstract: A system for determining a health of bearing associated with a connecting rod is provided. The system includes an oil collector placed proximate to the connecting rod and configured to receive an oil cast off from side thrust surfaces of the connecting rod during movement of the connecting rod. The system includes a sensor associated with the oil collector and configured to generate a signal indicative of a temperature of the oil cast off from the side thrust surface of the connecting rod. The system also includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the oil cast off from the side thrust surface of the connecting rod. The controller further determines the health of the bearing as a function of the signal of temperature of oil cast off from side thrust surface of the connecting rod.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: December 9, 2014
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Ronald P. Maloney
  • Publication number: 20140331753
    Abstract: A system for determining a health of a bearing associated with a connecting rod is provided. The system includes a sensor associated with the connecting rod and remotely disposed relative to the bearing of the connecting rod. The sensor is configured to generate a signal indicative of a temperature of the bearing. The system includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the bearing. The controller further determines a health of the bearing as a function of the signal of the temperature of the bearing.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Colin P. Garner, Andrew M. Williams, Michael Gore
  • Publication number: 20140331754
    Abstract: A system for determining a health of bearing associated with a connecting rod is provided. The system includes an oil collector placed proximate to the connecting rod and configured to receive an oil cast off from side thrust surfaces of the connecting rod during movement of the connecting rod. The system includes a sensor associated with the oil collector and configured to generate a signal indicative of a temperature of the oil cast off from the side thrust surface of the connecting rod. The system also includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the oil cast off from the side thrust surface of the connecting rod. The controller further determines the health of the bearing as a function of the signal of temperature of oil cast off from side thrust surface of the connecting rod.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Ronald P. Maloney
  • Patent number: 8112234
    Abstract: A method is provided for estimating the components of the force torsor that are applied to a bearing, which method provides for the measurement of a vector (Vm) of N deformations and for the use of a physical model linking a vector (Q) of at most N representative values of the components of the torsor with a deformation measurement vector, the method comprises the following iterative steps: introduction of a vector (Q) of representative values into the model in order to calculate a deformation measurement vector (Vc); and carrying out a pertinence test (T) between the deformation measurement vector (Vc) which is calculated and the measured vector (Vm); if the test (T) is negative, establishing at least one new vector (Q) of representative values to be introduced into the model according to the result of the test; or if the test (T) is positive, storing the vector (Q) of introduced values; wherein the estimated components of the force torsor are established according to at least one stored vector (Q) of values
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: February 7, 2012
    Assignee: SNR Roulements
    Inventors: Christophe Duret, David Kwapisz, Alexandre Laurent
  • Patent number: 8091417
    Abstract: A method for determining an amount of correction of a bearing height includes the steps of: determining the heights of bearings in an engine by using a transfer matrix method based on an actually measured bearing load and an actually measured crank deflection; determining a computed bearing load acting on each of the bearings based on the determined bearing height; determining a reference bearing load acting on each bearing when the bearing height of each bearing is positioned on a reference plane; determining a load difference between the computed bearing load and the reference bearing load on each bearing; and comparing the determined load difference with a set range and, when the determined load difference exceeds the set range, determining a correction range of the bearing height such that the load difference falls within an allowable range.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: January 10, 2012
    Assignee: Hitachi Zosen Corporation
    Inventor: Iwao Sugimoto
  • Publication number: 20110052388
    Abstract: An exemplary center housing rotating assembly includes a turbine wheel; a compressor wheel; a center housing (510) that includes a through bore (515), extending from a compressor end to a turbine end along a bore axis; a bearing assembly (530) positioned in the bore where the bearing assembly includes an outer race (532) that includes keyways (535, 535?) extending from an axial end, the keyways radially inset from an outer diameter of the outer race; and a plate (570) attached to the center housing where the plate includes extending keys (578, 578?), each of the keys (578, 578?) being received by a respective one of the keyways (535, 535?) to restrict rotation of the bearing assembly in the bore. Various other exemplary devices, systems, methods, etc., are also disclosed.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Inventors: Peter E. Mavrosakis, George Adeff
  • Publication number: 20100292937
    Abstract: A method for signaling a failure condition of a bearing of a turbocharger that includes a sensor configured for sensing information on off-axis rotor motion. The method entails receiving a stream of information from the sensor, decomposing the stream of information into a set of components representing different frequencies, using a subset of components that represent a range of frequencies known to be indicative of bearing failure to calculate a probability of failure of the bearing, signaling a failure condition of the bearing if the probability of failure exceeds a critical threshold, and if the present indicia of off-axis rotor motion does not indicate a complete failure condition has occurred, determining a time interval until another probability of failure of the bearing will be calculated. The time interval can vary based upon the rate that the probability of failure has changed over multiple time intervals.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 18, 2010
    Inventors: Diaa Hosny, Samir Ahmad
  • Publication number: 20100251810
    Abstract: A combination of a bearing component and a sensor, wherein: (a) at least a portion of the bearing component is formed from a bearing steel; (b) the sensor comprises a sensor element and a support therefor; (c) at least a portion of the support is formed from a low carbon steel comprising no more than 0.2 wt. % carbon or from nickel or an alloy thereof or from titanium or an alloy thereof; and (d) the bearing component and the support are welded or brazed to one another via said respective portions.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 7, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Hendrik Anne Mol, Johannes Franciscus Van Den Sanden
  • Patent number: 7631553
    Abstract: The invention relates to a bearing arrangement for mounting at least one machine element on a support, wherein the machine element is movably mounted on the support, wherein the bearing arrangement is provided with at least one measuring sleeve and with at least one measuring element on the measuring sleeve, wherein the measuring sleeve is formed separately from the support and wherein the measuring element is provided at least for measuring physical parameters and processes in the bearing arrangement.
    Type: Grant
    Filed: July 1, 2006
    Date of Patent: December 15, 2009
    Assignee: Schaeffler KG
    Inventors: Jens Heim, Peter Niebling, Gottfried Ruoff, Darius Dlugai, Christian Mock
  • Publication number: 20080202226
    Abstract: The invention relates to a bearing arrangement for mounting at least one machine element on a support, wherein the machine element is movably mounted on the support, wherein the bearing arrangement is provided with at least one measuring sleeve and with at least one measuring element on the measuring sleeve, wherein the measuring sleeve is formed separately from the support and wherein the measuring element is provided at least for measuring physical parameters and processes in the bearing arrangement.
    Type: Application
    Filed: July 1, 2006
    Publication date: August 28, 2008
    Applicant: SCHAEFFLER KG
    Inventors: Jens Heim, Peter Niebling, Gottfried Ruoff, Darius Dlugai, Christian Mock