Suppression of vibrations in systems Means or arrangements for avoiding or reducing out-of-balance forces

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16FSPRINGS SHOCK-ABSORBERS MEANS FOR DAMPING VIBRATION

F16F15/00Suppression of vibrations in systems Means or arrangements for avoiding or reducing out-of-balance forces

F16F15/002characterised by the control method or circuitry F16F15/005using electro- or magnetostrictive actuation means F16F15/007Piezo-electric elements being placed under pre-constraint F16F15/02Suppression of vibrations of non-rotating F16F15/021Decoupling of vibrations by means of point-of-contact supports F16F15/022using dampers and springs in combination F16F15/023using fluid means F16F15/0232with at least one gas spring F16F15/0235where a rotating member is in contact with fluid F16F15/0237involving squeeze-film damping F16F15/027comprising control arrangements F16F15/0275Control of stiffness F16F15/03using magnetic or electromagnetic means F16F15/035by use of eddy or induced-current damping F16F15/04using elastic means F16F15/043acting on a cam follower F16F15/046using combinations of springs of different kinds F16F15/06with metal springs F16F15/063with bars or tubes used as torsional elements F16F15/067using only wound springs F16F15/073using only leaf springs F16F15/08with rubber springs ; with springs made of rubber and metal F16F15/085Use of both rubber and metal springs F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system F16F15/12using elastic members or friction-damping members F16F15/1201for damping of axial or radial F16F15/1202the damping action being at least partially controlled by centrifugal masses F16F15/1203characterised by manufacturing F16F15/1204with a kinematic mechanism or gear system F16F15/1205with a kinematic mechanism F16F15/1206with a planetary gear system F16F15/1207characterised by the supporting arrangement of the damper unit F16F15/1208Bearing arrangements F16F15/1209comprising sliding bearings F16F15/121using springs as elastic members F16F15/1211C-shaped springs F16F15/1212disposed around axis of rotation F16F15/1213Spiral springs F16F15/1214Folded springs F16F15/1215Leaf springs F16F15/1216Torsional springs F16F15/1217Motion-limiting means F16F15/1218by means of spring-loaded radially arranged locking means F16F15/1219by means of spring-loaded axially arranged locking means F16F15/123Wound springs F16F15/12306Radially mounted springs F16F15/12313characterised by the dimension or shape of spring-containing windows F16F15/1232characterised by the spring mounting F16F15/12326End-caps for springs F16F15/12333having internal abutment means F16F15/1234Additional guiding means for springs F16F15/12346Set of springs F16F15/12353Combinations of dampers, e.g. with multiple plates, multiple spring sets F16F15/1236resulting in a staged spring characteristic F16F15/12366acting on multiple sets of springs F16F15/12373the sets of springs being arranged at substantially the same radius F16F15/1238with pre-damper F16F15/12386Pre-damper cage construction F16F15/12393pre-damper springs are of non-wound type F16F15/124Elastomeric springs F16F15/1245Elastic elements arranged between substantially-radial walls of two parts rotatable with respect to each other F16F15/126consisting of at least one annular element surrounding the axis of rotation F16F15/127using plastics springs combined with other types of springs F16F15/129characterised by friction-damping means F16F15/1292characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates F16F15/1295characterised by means for interconnecting driven plates and retainer, cover plates F16F15/1297Overload protection F16F15/131the rotating system comprising two or more gyratory masses F16F15/13107for damping of axial or radial F16F15/13114characterised by modifications for auxiliary purposes F16F15/13121characterised by clutch arrangements F16F15/13128the damping action being at least partially controlled by centrifugal masses F16F15/13135simple connection or disconnection of members at speed F16F15/13142characterised by the method of assembly, production or treatment F16F15/1315Multi-part primary or secondary masses F16F15/13157with a kinematic mechanism or gear system F16F15/13164characterised by the supporting arrangement of the damper unit F16F15/13171Bearing arrangements F16F15/13178comprising slide bearings F16F15/13185Bolting arrangements F16F15/13192Thermal shielding F16F15/133using springs as elastic members F16F15/1331C-shaped springs F16F15/1332disposed around axis of rotation F16F15/1333Spiral springs F16F15/1335Folded springs F16F15/1336Leaf springs F16F15/1337Torsional springs F16F15/1338Motion-limiting means F16F15/134Wound springs F16F15/13407Radially mounted springs F16F15/13415characterised by the dimension or shape of spring-containing windows F16F15/13423Disposition of material for damping or avoiding wear F16F15/1343characterised by the spring mounting F16F15/13438End-caps for springs F16F15/13446having internal abutment means F16F15/13453Additional guiding means for springs F16F15/13461Set of springs F16F15/13469Combinations of dampers, e.g. with multiple plates, multiple spring sets F16F15/13476resulting in a staged spring characteristic F16F15/13484acting on multiple sets of springs F16F15/13492the sets of springs being arranged at substantially the same radius F16F15/136Plastics springs F16F15/137the elastic members consisting of two or more springs of different kinds F16F15/139characterised by friction-damping means F16F15/1392characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates F16F15/1395characterised by main friction means acting radially outside the circumferential lines of action of the elastic members F16F15/1397Overload protection F16F15/14using masses freely rotating with the system, i.e.uninvolved in transmitting driveline torque F16F15/1407the rotation being limited with respect to the driving means F16F15/1414Masses driven by elastic elements F16F15/1421Metallic springs F16F15/1428with a single mass F16F15/1435Elastomeric springs F16F15/1442with a single mass F16F15/145Masses mounted with play with respect to driving means thus enabling free movement over a limited range F16F15/1457Systems with a single mass F16F15/1464Masses connected to driveline by a kinematic mechanism or gear system F16F15/1471with a kinematic mechanism F16F15/1478with a planetary gear system F16F15/1485the rotation being unlimited with respect to driving means F16F15/1492with a dry-friction connection F16F15/16using a fluid or pasty material F16F15/161characterised by the fluid damping devices F16F15/162with forced fluid circulation F16F15/163fluid acting as a lubricant F16F15/164characterised by manufacturing F16F15/165Sealing arrangements F16F15/167having an inertia member F16F15/173provided within a closed housing F16F15/18using electric, magnetic or electromagnetic means F16F15/20Suppression of vibrations of rotating systems by favourable grouping or relative arrangements of the moving members of the system or systems F16F15/22Compensation of inertia forces F16F15/223Use of systems involving rotary unbalanced masses where the phase-angle of masses mounted on counter-rotating shafts can be varied F16F15/226in star engine arrangements F16F15/24of crankshaft systems by particular disposition of cranks, pistons, or the like F16F15/26of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system F16F15/261where masses move linearly F16F15/262Masses attached to pinions, camshafts ordriving shafts for auxiliary equipment F16F15/264Rotating balancer shafts F16F15/265Arrangement of two or more balancer shafts F16F15/267characterised by bearing support of balancer shafts; Lubrication arrangements F16F15/268Hollow shafts F16F15/28Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system F16F15/283for engine crankshafts F16F15/286Adjustable weights F16F15/30Flywheels F16F15/302comprising arrangements for cooling or thermal insulation F16F15/305made of plastics, e.g. fibre-reinforced plastics [FRP] F16F15/31characterised by means for varying the moment of inertia F16F15/315characterised by their supporting arrangement F16F15/3153Securing inertia members to the shafts F16F15/3156Arrangement of the bearings F16F15/32Correcting- or balancing-weights or equivalent means for balancing rotating bodies F16F15/322the rotating body being a shaft F16F15/324the rotating body being a vehicle wheel F16F15/326specially adapted for attachment to spokes F16F15/328Multiple weights on adhesive strip F16F15/34Fastening arrangements therefor F16F15/345specially adapted for attachement to a vehicle wheel F16F15/36operating automatically F16F15/363using rolling bodies F16F15/366using fluid or powder means