| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 074574200 |
Damping using swinging masses, e.g., pendulum type, etc.
| 46 |
| 074572210 |
Structural detail, e.g., fiber, held by magnet, etc.
| 36 |
| 074574400 |
Damping by absorbing vibration force (via rubber, elastomeric material, etc.)
| 36 |
| 074573100 |
With fluid balancing means
| 19 |
| 074574100 |
With electrical or magnetic damping
| 8 |
| 074574300 |
Damping by increasing frictional force | 2 |
| 20080210049 | Damping Device, Particularly for a Dual Mass Flywheel - A damping device ( | 09-04-2008 |
| 20160084344 | DUAL MASS FLYWHEEL - A dual mass flywheel includes a first arcspring and a second arcspring being symmetrically mounted along an inner circumference of a primary cover connected to a crankshaft, a flange being inserted into the primary cover and including a first compressor and a second compressor formed therein, which contact the first arcspring and the second arcspring, respectively, a first stopper and a second stopper configured to support the first arcspring or the second arcspring and being formed on the inner circumference of the primary cover, and a first guide shell and a second guide shell disposed on the inner circumference of the primary cover, guide deformation of the first arcspring or the second arcspring in a radial direction, and including a friction inductor that contacts the first compressor or the second compressor. | 03-24-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20090044659 | ASYMMETRICAL FLEXPLATE - A flexplate ( | 02-19-2009 |
| 20100206125 | PROCEDURE FOR DETERMINING AT LEAST ONE MISFIRING CYLINDER OF A COMBUSTION ENGINE, CONTROL UNIT AND MOTOR VEHICLE DRIVE TRAIN - At a procedure for determining at least one misfiring cylinder ( | 08-19-2010 |
| 20110132137 | DAMPER SPRING DEVICE, FLYWHEEL, CLUTCH DISK, AND CLUTCH DISK FOR LOCKUP MECHANISM - A damper spring device is provided with a first spring and a second spring retained by a stopper in such a manner that the second spring is compressed by a preload. The preload on the second spring is greater than a preload on the first spring. The first spring and the second spring have load-deflection characteristics such that the first spring deforms when an axial load acting in the direction of compression of the first spring is not greater than a load at which a strand of the first spring is at least partially compacted and that the first spring and the second spring deform when the axial load is greater than the load at which the strand of the first spring is at least partially compacted. | 06-09-2011 |
| 20110259143 | FLYWHEEL - A flywheel suitable for use with fluid, and a method of using same, wherein the flywheel comprises a receptacle for receiving the fluid and wherein the receptacle comprises an outer wall and an inner wall, the inner and outer wall forming a cavity for holding the fluid when the flywheel is in operation. | 10-27-2011 |
| 20120222515 | DYNAMIC VIBRATION ABSORBER - Rolling element bores are provided in the outer circumferential portion of a disk-like main body. Each rolling element bore has an arcuate outer rim. Rollers each have a groove formed on the peripheral edge and extending along the entire circumference of the roller. The outer rim of each rolling element bore engages with the groove of the associated roller so that the roller is loosely fitted in the rolling element bore. Shafts are respectively formed on both sides of each roller. The shafts project from the center of the roller. An elastic ring is mounted on each shaft. Annular guide plates are respectively mounted on both sides of the disk-like main body so that the shafts of the rollers are supported by the guide plates. | 09-06-2012 |
| 20120227536 | SECTIONED TUNING RING FOR ROTATING BODY - A solution is provided for tuning the frequency of a rotating body. A sectioned tuning ring is mounted to a flange coupling that couples a first part and a second part of a rotating body together. The sectioned tuning ring adjusts the frequency of the rotating body. The sectioned tuning ring can be bolted on to the rotating body as it is in an operating position within the machine, thus eliminating the need to remove the rotating body from the machine. | 09-13-2012 |
| 20120234131 | DUAL-MASS FLYWHEEL LOCK-OUT CLUTCH - A dual-mass flywheel is provided for a vehicle drivetrain having an internal combustion engine and a transmission. The dual-mass flywheel includes a primary mass adapted for connection to the engine and a secondary mass operatively connected to the primary mass and adapted for connection to the transmission. The clutching mechanism is configured to lock the secondary mass to the primary mass up to a threshold speed of the engine to reduce noise, vibration, and harshness (NVH) during start up of the engine. The clutching mechanism is also configured to release the secondary mass from the primary mass above the threshold speed. A motor vehicle employing the disclosed dual-mass flywheel is also provided. | 09-20-2012 |
| 20120304807 | DEVICE ENABLING AN ELECTRIC WHEELCHAIR TO CROSS OBSTACLES - The device for crossing obstacles for a motorized vehicle includes a chassis connected to n (n≧3) wheels on each side, and a driver suitable for rotating the wheels. Each side of the chassis includes a mechanism comprising n−1 arms hingedly connected two-by-two about a shared pivoting axis on which the n wheels are distributed, respectively a front wheel, n−2 intermediate wheels, and a rear wheel. The mechanism allows each wheel to pivot relative to the axis of each adjacent wheel. | 12-06-2012 |
| 20120312118 | MASS BALANCING DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A mass balancing device for balancing free inertial forces and/or free moments of inertia of a reciprocating internal combustion engine ( | 12-13-2012 |
| 20130008281 | Avalanche Control System and Method - Avalanche control system and method using one or more chambers in an avalanche-prone area to control the removal of snow or other material which might avalanche. The system includes a plurality of spaced housings made of a solid material like “shock-crete” and an asymmetric flywheel coupled to a motor which is controlled by a signal to warm up and turn on at a desired time to vibrate the housing and cause removal of loose snow or other material and/or the compacting of that material to make avalanching less likely. | 01-10-2013 |
| 20130104693 | APPARATUS FOR REDUCING ENGINE TORQUE FLUCTUATIONS | 05-02-2013 |
| 20130118300 | SHAFT DAMPER OF TRANSMISSION - A shaft damper of a transmission is provided to improve an NVH characteristic such as rattle noise of a transmission by effectively reducing target resonance as a problem in whole rpm ranges by adding a structure to minimize one resonance and additionally reduce the resonance with respect the other resonance between two resonances while converting the target resonance as the problem into two divided resonances by mounting a structure which applies inertia to an input shaft or an output shaft, a counter shaft, or a PTO shaft of the transmission. | 05-16-2013 |
| 20130125700 | DAMPER DEVICE - A damper device comprises: a first shaft that outputs rotational power from a power source; a second shaft that transmits rotational power to a gear mechanism and has outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member spline-engaged with the outer splines; a damper unit that absorbs torque fluctuation between the first and second rotational members; and an inertial body having inner splines spline-engaged with the outer splines and having an annular portion. The tooth parts of the inner splines are pressed into contact with the tooth parts of the outer splines in the circumferential direction of the inertial body. | 05-23-2013 |
| 20130205941 | HORIZONTAL ATTITUDE STABILIZATION DEVICE FOR DISC AIR VEHICLE - Three flywheels which have the same size and the same weight at equal distances/equal intervals from the gravity of a disc air vehicle are tandem-arranged on the horizontal surface passing through a gravity point which is the center of the disc air vehicle, and the flywheels are fast rotated by power such as a motor or an engine in the same direction and at the same speed, whereby the three flywheels generate combined centrifugal force with an unreal vertical axis passing through the gravity thereof as the center. | 08-15-2013 |
| 20130205942 | CYCLOIDAL TRANSMISSIONS - The present invention refers to a conventional spur gear transmission or magnetic gear transmission, with a cycloidal configuration. The magnetic gears include contact points such that the mobile gear rolls on the fixed gear. Alternatively, a balance wheel is incorporated, which generates a centrifugal force opposite to the one associated with the mobile gear, of equal magnitude and on the same plane as this latter one, thereby completely eliminating the unbalancing of the mechanism. The balance wheel is mounted on the high-speed shaft in a manner similar to the mobile gear, and has the freedom to displace itself radially through centrifugal effect in the opposite direction to the eccentric position of the center of the mobile gear until it presses against a fixed track over which it rolls, concentric with the fixed gear with an equal force, opposite and collinear with that produced by the mobile gear. | 08-15-2013 |
| 20130239742 | INERTIAL FLYWHEEL - An inertial flywheel includes a wheel body defining an axis of rotation and including a first sidewall, a second sidewall axially spaced apart from the first sidewall, a peripheral wall surrounding the axis of rotation and interconnecting the first and second sidewalls, and a plurality of circumferentially spaced-apart mounting seats connected to the first sidewall. The first and second sidewalls and the peripheral wall cooperatively define a chamber dispersed with a cementing material. Each of the mounting seats has a counterweight-receiving groove adapted for insertion with one of counterweights of a counterweight unit. | 09-19-2013 |
| 20140144284 | DUAL MASS FLYWHEEL - A dual mass flywheel includes: a primary flywheel having a ring gear and connected to an output shaft of an engine; a secondary flywheel connected to an input shaft of a transmission; a coupling unit for coupling the primary flywheel and the secondary flywheel; and a plurality of drive units coupled to the primary flywheel and the secondary flywheel and in which spring guides are coupled to opposite sides of a torsion spring to dampen noise and vibrations while a torque of the primary flywheel is transferred to the secondary flywheel. | 05-29-2014 |
| 20140157945 | DUAL MASS FLYWHEEL - It is possible to prevent mounting performance from being deteriorated due to an increase in length of a transmission by mounting an inertia body not on the input shaft of the transmission and can effectively suppress rattling of the transmission by effectively reducing rotational vibration of the input shaft of the transmission, using 2-cylinder and 3-cylinder engines, down-speeding, or Cylinder Deactivation (CDA). | 06-12-2014 |
| 20140260777 | VARIABLE INERTIA FLYWHEEL - A variable inertia flywheel for an internal combustion engine is provided. The variable inertia flywheel device comprises at least two revolute joint assemblies, a roller guide, and a first actuator. The at least two revolute joint assemblies are in driving engagement with an output of the internal combustion engine. Each of the revolute joint assemblies comprises a member assembly and a roller. The roller guide is disposed about the revolute joint assemblies. An inner surface of the roller guide is in rolling contact with each of the rollers. The first actuator is in engagement with one of the roller guide and the revolute joint assemblies. The first actuator applies a force to one of the roller guide and the revolute joint assemblies to move one of the roller guide and the revolute joint assemblies along an axis defined by the output of the internal combustion engine. | 09-18-2014 |
| 20140260778 | TORSIONAL COMPENSATOR - A torsional compensating device for an internal combustion engine for an internal combustion engine is provided. The torsional compensating device comprises a first joint assembly and a torsional element. The first joint assembly is in driving engagement with an output of the internal combustion engine. The torsional element is in driving engagement with the first joint assembly and the output of the internal combustion engine. An angular deviation of the first joint assembly causes a cyclical acceleration of the torsional element. The cyclical acceleration of the torsional element applies a torque to the output of the internal combustion engine. The torsional compensating device may be passively or dynamically adapted for both an amplitude and a phase of a torque ripple while minimizing an interference with an operation of the internal combustion engine. | 09-18-2014 |
| 20140311280 | UNBALANCED SHAFT AND METHOD FOR PRODUCING SAME - An unbalanced shaft for compensating for inertial forces and/or mass moments of inertia of an internal combustion engine ( | 10-23-2014 |
| 20140366682 | VEHICLE VIBRATION REDUCING APPARATUS - A vehicle vibration reducing apparatus ( | 12-18-2014 |
| 20150316123 | Torsional Vibration Damper Assembly - A torsional vibration damping arrangement for a drivetrain of a vehicle, having a carrier arrangement which is rotatable around an axis of rotation, a deflection mass movable in circumferential direction relative to the carrier arrangement, carrier arrangement and the deflection mass are coupled to be rotatable relative to one another via restoring elements arranged in circumferential direction that extend from the deflection mass in direction of the carrier arrangement. A restoring element is deformable around a force application point which is movable in radial direction under centrifugal force and which is associated with the restoring element. The movable force application point is acted upon by a preloading force acting radially in direction of the axis of rotation by a preloading spring. A main axis of the preloading spring and a main axis of the restoring element do not extend coaxially. | 11-05-2015 |
| 20160069419 | BALANCER - [Problem to be Solved] | 03-10-2016 |
| 20160252155 | TORSIONAL COMPENSATOR | 09-01-2016 |
| 20180023659 | METHOD FOR CONTROLLING A ROTATION DAMPER FUNCTIONING ACCORDING TO THE GYROSCOPIC PRINCIPLE | 01-25-2018 |
| 20190145492 | Flywheel System | 05-16-2019 |
