| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073460000 |
Dynamic (spinning)
| 88 |
| 073455000 |
Propeller, impeller, or fluid coupling
| 15 |
| 073487000 |
Tool and adjunct
| 9 |
| 073457000 |
In situ | 3 |
| 20090107237 | Shaft Trim Balancing Devices, Related Systems and Methods - Shaft trim balancing devices, related systems and methods are provided. In this regard, an representative device for trim balancing a rotatable shaft includes: an intermediate section being annularly shaped and having terminating ends spaced from each other in an uncompressed state of the device; and first and second sets of counterweights extending longitudinally from opposing sides of the intermediate section. | 04-30-2009 |
| 20090139327 | METHOD AND A SYSTEM FOR DETERMINING WHEEL IMBALANCES OF AT LEAST ONE WHEEL ON A VEHICLE - A system and a method of determining imbalances of at least one wheel on a vehicle, when said wheel is rotating, is provided. The method includes the steps of providing a vibration signal from at least one wheel vibration sensor associated with said wheel; providing an angular velocity signal of the rotation of said wheel, the angular velocity signal including a reference signal indicating the start of a wheel revolution; and based thereupon performing signal processing upon these signals for detecting a periodic signal of a predetermined nature corresponding to imbalances in said wheel and determining the position upon said at least one wheel of such imbalance. Accordingly, a wheel imbalance detection system separate from the vehicle is no longer necessary, because the present method provides an indication as to the precise location and type of any detected imbalance in a wheel. By being able to locate the position upon the wheel of such wheel imbalance, the maintenance time used is reduced considerably. Further, the possibility of an early detection of a wheel imbalance reduces the risk for damages to develop further. | 06-04-2009 |
| 20150369687 | SYSTEM AND METHOD FOR MONITORING MACHINES - A monitoring system and method monitor changes in clearance distances between a sensor and a rotating component of a machine. Imbalance and/or wear in the machine is identified based on the changes in the clearance distances. The system and method optionally both measure the clearance distances and a rotating speed of the rotating component of the machine with the same sensor. In order to identify imbalance in the machine, a spectral energy of the machine can be calculated based on the changes in the clearance distances, and the imbalance in the machine can be identified based on the spectral energy. The system and method can determine a trigger speed of the machine that is associated with the wear in the machine based on the changes in the clearance distance. A remaining useful life of the machine can be estimated based on changes in the trigger speed. | 12-24-2015 |
| 073459000 |
Combined static and dynamic | 3 |
| 20090025476 | METHOD OF BALANCING A VEHICLE WHEEL - A method of balancing a vehicle wheel in which to calculate the respective balancing masses permissible mass deviations (tolerances) for dynamic balancing are greater than the permissible mass deviation (tolerance) for static balancing. The measuring run is stopped when the calculated balancing masses lie within the predetermined tolerances (FIGURE). | 01-29-2009 |
| 20100095767 | Method And Apparatus For Determining Imbalance Correction Weight Amounts For Application During Vehicle Wheel Balancing - A method for reducing imbalance correction weight usage during a balancing operation of a vehicle wheel assembly. An imbalance of the vehicle wheel assembly is initially determined and utilized together with an established acceptable threshold of imbalance for the vehicle wheel assembly to compute a reduced imbalance value having a magnitude less than the determined imbalance. Using the reduced imbalance value, correction weight amounts and placement locations for application to the vehicle wheel assembly are identified. | 04-22-2010 |
| 20100186502 | METHOD AND WHEEL BALANCER FOR BALANCING A VEHICLE WHEEL - A method and a wheel balancer for balancing a vehicle wheel, comprising:
| 07-29-2010 |
| 073482000 |
Gravitational moment tilts rotor about axis transverse to spin axis | 1 |
| 20140123753 | METHOD AND DEVICE FOR DETERMINING THE STATIC UNBALANCE - Disclosed is a method for determining the static unbalance of a body ( | 05-08-2014 |
| Entries |
| Document | Title | Date |
|---|
| 20080245138 | METHOD FOR THE MODULAR BALANCING OF A TURBOMACHINE ROTOR - A method of balancing a first turbomachine module ( | 10-09-2008 |
| 20080282782 | Rotatably Supporting Device for Correcting Balance of Rotating Body - A rotatably supporting device for correcting balance of a rotating body includes a journal supporting part having a mandrel that rotatably supports the rotating body in a floating state about a vertical axis, a thrust supporting part that is provided at a lower end portion of the mandrel and supports a bottom part of the rotating body in the floating state, a first fluid supply passage that supplies a fluid for floating between the mandrel and a rotation support hole of the rotating body, an annular groove provided in the thrust supporting part so as to face the bottom part of the rotating body, and a second fluid supply passage that communicates with the annular groove to supply a fluid thereto for floating the rotating body. A rotatably supporting device for correcting balance of a rotating body includes a journal supporting part having a mandrel that rotatably supports the rotating body in a floating state about a vertical axis, a thrust supporting part that is provided at a lower end portion of the mandrel and supports a bottom part of the rotating body in the floating state, and a fluid supply passage that supplies a fluid for floating between the mandrel and a rotation support hole of the rotating body, in which a space part is formed in at least either one of the mandrel and the rotation support hole for widening a space other than at a supporting portion. | 11-20-2008 |
| 20090025461 | METHOD OF BALANCING A GAS TURBINE ENGINE ROTOR - A method of balancing an assembly of rotary parts of a gas turbine engine comprising measuring at least one of the concentricity and parallelism of each component and considering globally all possible component stacking positions to generate an optimized stacking position for each component of the assembly to minimize assembly imbalance. | 01-29-2009 |
| 20090183556 | METHOD AND APPARATUS FOR BALANCING AN ELECTRICALLY ASSISTED TURBOCHARGER ROTOR - A rotation is corrected by rotationally driving a supercharger rotor (a turbine impeller ( | 07-23-2009 |
| 20100288030 | METHOD AND APPARATUS FOR REAL-TIME ESTIMATION OF FOUR WHEEL IMBALANCES FOR CHASSIS PROGNOSIS - A system and method for determining whether a particular wheel on a vehicle is un-balanced during operation of the vehicle. The method includes providing wheel angle signals from the wheels of the vehicle and providing a vibration measurement signal from a response point on the vehicle, such as from an accelerometer on a steering column of the vehicle. The method also includes generating a regression vector using the wheel angle signals. The method also includes generating an estimated parameter vector using a recursive least squares algorithm, the regression vector and the vibration measurement signal. The method then calculates an imbalanced magnitude value of each wheel of the vehicle using the estimated parameter vector. The method uses a persistency of excitation test to determine whether the parameter vector has converged to a true value to determine whether the calculated imbalanced magnitude values are accurate. | 11-18-2010 |
| 20110056277 | Method And Apparatus For Determining Imbalance Correction Weight Amounts For Application During Vehicle Wheel Balancing - A method for reducing imbalance correction weight usage during a balancing operation of a vehicle wheel assembly. An imbalance of the vehicle wheel assembly is initially determined and utilized together with an established acceptable threshold of imbalance for the vehicle wheel assembly to compute a reduced imbalance value having a magnitude less than the determined imbalance. Using the reduced imbalance value, correction weight amounts and placement locations for application to the vehicle wheel assembly are identified. Determined differences between the identified correction weight amount using the reduced imbalance value and a convention correction weight amount are identified as imbalance correction weight savings. | 03-10-2011 |
| 20110138893 | METHOD FOR ADJUSTING UNEVENNESS OF TOP FLANGE OF WIND TURBINE GENERATOR TOWER - The unevenness of the upper surface of a top flange of a wind turbine generator tower is adjusted by arranging shim plates on the upper surface of the top flange and by adjusting the thicknesses and/or number of the shim plates to be disposed at individual positions. First, the roughness levels of the upper surface of the top flange are measured at a plurality of measuring points in a state in which a nacelle of the wind turbine generator is not mounted on the tower, which is vertically erected. Next, the thicknesses and/or number of the shim plates to be disposed on the individual plurality of measuring points to adjust the unevenness of the upper surface of the top flange are determined in accordance with the measured roughness levels of the upper surface of the top flange. | 06-16-2011 |
| 20110162442 | METHOD, SYSTEM AND DEVICE FOR REDUCING VIBRATION IN AN ARTICLE PROCESSING MACHINE, SUCH AS A WASHING MACHINE - A method for reducing vibration in a rotary system ( | 07-07-2011 |
| 20120279286 | SPINDLE CLAMP - The invention relates to a balancing device, having a measuring system for determining the rotational unbalance of a test object, comprising a spindle unit with a spindle, which is intended to hold the test object and rotate it at a test rotational speed, and a spindle mounting, by which the spindle unit is movably anchored on the machine base, such that the spindle unit can oscillate in a predetermined measuring direction as a result of the unbalance forces occurring during the measurement operation, and at least one sensor, which upon rotation of the spindle detects at least one unbalance characteristic variable occurring in the measuring direction, and a material removal system for balancing the test object by material removal in a predetermined site. The measuring system and the material removal system are designed such that material can be removed when the test object is held in the spindle. | 11-08-2012 |
