Abstract: Disclosed herein is an air conditioner. The air conditioner include a housing having a discharge port, a blade located in the discharge port where the blade is rotatable with respect to the housing, a blade driving member configured to rotate the blade, and an elastic member located between the blade and the blade driving member and the elastic member including a stopper coupleable to the blade driving member.

Abstract: A gas turbine engine comprises a gearbox comprises a sun gear, an annulus gear, a plurality of planet gears and a carrier. The sun gear meshes with the planet gears and the planet gears mesh with the annulus gear. The planet gear carrier comprising a first ring, a second ring spaced axially from the first ring and a plurality of circumferentially spaced axles extending axially between the first ring and the second ring. Each planet gear is rotatably mounted on a respective one of the axles and the axles are arranged at a first radius. At least one of the first ring and the second ring comprises a metal matrix composite material ring and the metal matrix composite ring comprises a ring of reinforcing fibres and the ring of reinforcing fibres having a second radius greater than the first radius.

Abstract: A motor driving assembly includes a single phase motor and a torque transmission mechanism. The torque transmission mechanism includes a driving member being driven by the motor, a driven member for driving a load to rotate along a predetermined direction, and a connecting device comprising a resilient member and a damping member. The resilient member includes one end connected to the driving member and the other end connected to the driven member. The damping member is coated on or attached over the resilient member, or filled in a gap of the resilient member, or the resilient member is made from a damping material in order to reduce noise produced by the resilient member.

Abstract: The invention relates to a coupling for connecting two shaft sections in a damping manner, including a bushing arrangement having a radially inner bushing and a radially outer bushing, wherein the radially inner bushing can be coupled to a first shaft section and the radially outer bushing can be coupled to a second shaft section so as to transmit torque, wherein a damping layer is provided between the radially inner bushing and the radially outer bushing. The bushing arrangement can have a circumferentially wave-shaped contour, wherein the radially inner bushing and the radially outer bushing have shafts that mesh with each other, and wherein the damping layer is provided with axial openings, which extend reciprocally from both axial ends of the coupling into the damping layer so that damping blocks are formed at the axial ends of the coupling between the radially inner and radially outer bushings.

Abstract: A flexible shaft having square or helical square tips with thermoplastic felt covering and adherent to the tips including the tip ends. The felt has fused bulges adjacent the ends. When the tips are inserted into mating recesses of driving and driven members, the felt is deformed to improve the fit between the tips and the recesses and reduce noise and vibration when the driving member is rotated.

Abstract: A pulley assembly has a first body to engage a power transmission belt. The first body is rotatable around a first axis. A second body is movable relative to the first body around the first axis. First and second axially spaced elastic members each has a radially inner portion and a radially outer portion. One of: (a) the radially inner portions of the first and second members; and (b) the radially outer portions of the first and second members are: (i) coupled to move together around the first axis; and (ii) each movable relative to the first and second bodies around the first axis. The other of: (a) the radially inner portions of the first and second members; and (b) the radially outer portions of the first and second members are fixedly coupled, one each to the first and second bodies, to follow movement of the first and second bodies around the first axis.

Abstract: A rotary shaft having ends with a surface layer or raised portions made of a compressible, preferably elastic, material, the ends including the surface layer or raised portions being covered with relatively thin walled durable plastic tubing.

Abstract: A multi-rate torsional coupling (20) features parallel first and second drive connections (82 and 84) between input (24) and output (22) members. The first drive connection (82) extends through a first resilient coupling (38), and the second drive connection (84) extends through a second resilient coupling (40). An angular play coupling (70) engages the second drive connection (84) at a particular torque load for transmitting additional torque through the torsional coupling (20) at a higher spring rate.

Abstract: A torque fluctuation damper pulley 10 is provided with a torque fluctuation damping elastic member 15 between a hub 11 attached to a rotational shaft and a pulley member 13. The torque fluctuation damping elastic member 15 includes a pair of rubber members 15A and 15B which sandwich a support portion 24 of the pulley member 13 under equal elastic forces from the front and rear in the axial direction of the pulley member 13 to joint the hub with the pulley member 13 elastically. Thus, the pulley member 13 always has equal forces being applied thereto from the front and rear in the axial direction, so that it becomes possible to make unnecessary any thrust bearing which would otherwise be required for positioning the pulley member 13 in the axial direction.

Abstract: The invention relates to a torsionally elastic shaft coupling comprising an input flange (1) and an output flange (2) which are each used for connecting the shaft coupling to adjacent machine elements, two serially connected, elastic elastomer members (7, 13), and an intermediate member (8) that is connected to the input flange (1) via the first elastomer member (7) and to the output flange (2) via the second elastomer member (13) in such a way that torque can be transmitted from the input flange (1) to the intermediate member (8) via the first, softer elastomer member (7) and from the intermediate member (8) to the output flange (2) via the second, harder elastomer member (13). A stop (9) which limits the torsional angle between the input flange (1) and the intermediate member (8) is located between the intermediate member (8) and the input flange (1). The aim of the invention is to further develop such an elastic shaft coupling such that the same is designed in a particularly compact fashion.

Abstract: To prevent the number of parts from being increased due to a trigger plate in a damper with trigger plate, a damper which is formed by interposing a sleeve and an elastic body between a hub fitted to a rotating shaft and an annular mass body disposed at the outer peripheral side of the hub, is characterized in that a magnetized trigger plate is integrally fitted, at specified pitch in the circular direction, to one end part of the sleeve, and the sleeve is fitted to the outer peripheral side of the hub or the inner peripheral side of the annular mass body.

Abstract: A coupling sleeve for use in a sleeve-type, flexible, shaft-coupling device, having a generally annular body portion with one or more axially extending, polymeric or elastomeric teeth on at least one of its inner and outer periphery and having a rigid support band with a rigid, axially extending fin protruding radially into at least one of the teeth. The coupling sleeve has a cross sectional area with a rigid band portion that occupies the minor portion of the cross section relative to the polymeric portion. Torque applied to the teeth of the coupling sleeve during use is resisted by the fins and the tooth material is thus placed in compression.

Abstract: A power transmission apparatus (10) includes a rotary portion (1) to which turning driving force from a driving source is transmitted and which can rotate, a power cutoff member (3) mechanically connected to the rotary portion (1) and one of the ends of a rotary shaft (5) of a driven apparatus and cutting off transmission of excessive torque between them, and a cap (4) connected to the end of the rotary shaft (5) on one hand and fastened by screw meshing to the power cutoff member (3) on the other hand, and transmitting power from the power cutoff member (3) to the rotary shaft (5). The rotary portion (1), the power cutoff member (3), the cap (4) and the rotary shaft (5) all rotate integrally with one another. The cap (4) has a flange portion (4h) protruding in a radial direction with respect to an axis of the rotary shaft (5) and supporting an axial force.

Abstract: A rotational balance adjustment structure for an engine includes; a damper pulley having an elastic member provided on the outer periphery of a hub and a damper mass provided on the outer periphery of the elastic member; and an engine assembly having an engine body and a plurality of parts mounted on the engine body, the plurality of parts including the damper pulley. The engine assembly is assembled by mounting a plurality of parts to the engine body, the plurality of parts including the damper pulley, and the rotational balance of the engine assembly is adjusted by attaching a balance piece to the damper mass.

Abstract: An integrated pulley-torsional damper assembly (1) comprises a hub (2) designed for being rigidly connected to a drive member (3), a pulley (4) connected to the hub (2) by means of a first ring (5) made of elastomeric material having the function of filter for the torsional oscillations, and an inertia ring (6), connected to the hub (2) by means of a second ring (7) made of elastomeric material, which defines with the inertia ring (6) a damping system. The first elastomeric ring is connected to the hub by mans of a coupling flange (25), which can be pack-tightened between an internal annular flange (10) of the hub and the drive member (3), the hub (2) comprising a first cylindrical wall (11) and a second cylindrical wall (12), which are coaxial with respect to one another and define between them an annular cavity (9) housing the first elastomeric ring (5), the external cylindrical wall (12) defining a support for the second elastomeric ring (7).

Abstract: A coupling structure capable of being removed in an undamaged condition from a rotatable shaft. The coupling structure includes a metallic insert and a polymer hub surrounding the metallic insert. The metallic insert features a sleeve and a flange at the leading edge of the sleeve remote from the opening into which the shaft is inserted. Forces applied to the flange are preferentially transferred to the metallic insert such that the polymer hub remains substantially stress-free. The coupling structure may be incorporates into a torsional vibration damper that further includes an inertia member encircling the polymer hub and an elastomer layer situated between the inertia member and the polymer hub. The coupling structure permits the torsional vibration damper to be removed undamaged from a crankshaft.

Abstract: A noise and vibration damper for use with a rotatable structure, such as a driveshaft assembly for a vehicular drive train system, includes an inner member, an elastomeric member that extends about the inner member, and an outer member that extends about the elastomeric member. The inner member is formed from a sheet of material that has been deformed to a desired shape, while the outer member is formed from a tube of material having a length that is selected to provide the desired dampening frequency. The natural resonant frequency of the noise and vibration damper can be adjusted by varying either or both of the shape of the inner member or the axial length of the outer member of the noise and vibration damper. In both instances, the weight distribution of the components of the noise and vibration damper is altered.

Abstract: A torsional vibration damper mountable to a rotatable shaft. The torsional vibration damper is a composite structure including a body formed of a polymer, such as a glass-reinforced polyamide, that surrounds an insert formed of a structurally-rigid material, such as a metal. The insert includes one or more support flanges that extend radially outward into the polymer body. When the torsional vibration damper is removed from the rotatable shaft, axial forces applied to the damper are transferred by the support flanges to the insert such that the polymer body remains substantially stress-free. In addition to, or instead of, the support flanges, the insert may include torque-locking structure that locks the polymer annular body with the insert to prevent relative rotation therebetween.

Abstract: A torsionally flexible coupling having a rotational axis (1), including a first ring (2) and a second ring (3, 4), which enclose each other [one enclosing the other] at a radial distance, at least one ring-shaped first spring element (5) made of elastomeric material being positioned in the annular clearance (13) formed by the radial distance; and a belt pulley (7) being fastened, relatively having torsional flexibility, to at least one of the rings (2; 3, 4) with the aid of a second spring element (6) made of an elastomeric material, and being supported on at least one of the rings (2; 3, 4) at least in the radial direction with the aid of a sliding bearing (8, 9); the sliding bearing (8, 9) being formed by a rubber layer (9) having at least two embedded sliding rings (8).

Abstract: A propeller assembly is provided for mounting in a rotatable propeller shaft of a water craft. The propeller assembly includes a hub structure extending along an axis and including an outer surface having a plurality of circumferentially spaced blades projecting therefrom and an inner surface having a plurality of circumferentially spaced, longitudinally extending keys projecting therefrom. An adaptor translates rotatational movement of the propeller shaft to the hub structure. The adaptor includes an inner surface defining a passageway for receiving a propeller shaft therethrough and an outer surface having a plurality of circumferentially spaced, longitudinally extending keys extending therefrom. The keys of the hub structure and the keys of the adaptor lie on a generally circular key path such that rotation of the adaptor is directly translated to the hub structure.

Abstract: A propeller assembly is provided for mounting on a rotatable propeller shaft of a watercraft. The propeller assembly includes a hub structure extending along a longitudinal axis. The hub structure includes an outer surface having a plurality of circumferentially spaced propeller blades projecting therefrom and an inner surface having a longitudinally extending keys projecting therealong. An adaptor has an inner surface defining a passageway for receiving the propeller shaft therethrough and an outer surface having longitudinally extending keys extending therealong. A tubular bushing interconnects the adaptor to the hub structure. The tubular bushing has a first set of keyways for receiving corresponding keys of the adaptor in a mating relationship and a second set of keyways for receiving the keys of the hub structure in a mating relationship.

Abstract: A radially soft drive coupling for reducing vibration transmitted across the coupling in certain marine drive applications. The elastomeric elements interconnecting the hub and housing are precompressed by an amount which is at least in the range of 15-20% to produce significant radial and torsional softening of the spring rate of the elastomer. The radial spring rate whose magnitude expressed in lb/in is in the range of between one half and three times the magnitude of said design torque level expressed in lb-in.

Abstract: A device for driving a piece of equipment from a driving shaft has a torsional vibration damper and comprises a primary element for connection to the driving shaft and a secondary element for connection to the piece of equipment. A first elastic member surrounds the primary element and an inertia ring surrounds the first elastic member. The secondary element has a rim extending parallel to the longitudinal axis of the device, and the rim partly covers the inertia ring. A cylindrical ring is located between the rim and the inertia ring for providing friction and a radial guide bearing. The secondary element has a transverse covering integral with the rim extending radially inwardly toward the longitudinal axis of the driving shaft. A second elastic member is located between the transverse covering and the primary element.

Abstract: A torsionally flexible coupling having an axis of rotation, comprising a first ring and a second ring that surround one another with radial spacing, such that at least one annularly configured first resilient element made of elastomeric material is arranged in the annular gap formed by the spacing, and such that a belt pulley is mounted, with relative torsional elasticity, on at least one of the rings by a second resilient element made of elastomeric material, the belt pulley being braced at least in the radial direction against at least one of the rings by a sliding bearing. The sliding bearing is made of elastomeric material and is configured integrally and continuously with the first or second resilient element, and the sliding bearing and the first or second resilient element with which it is integrally formed are made of different materials, the materials being adapted to the respective application.

Abstract: A torsional vibration damper with an outside ring and an inside ring which surround each other and are connected to each other with rotational elasticity by way of spokes which can be deflected in the circumferential direction. The spokes are non-deformable and are connected with the inside ring and with the outside ring by way of intermediate layers made of rubber.

Abstract: A flexible dual-rate coupling (20) including an outer member (22), and inner member (24), and a free-floating intermediate member (26). First and second elastomers (28) and (44) provide the dual-rate spring rate characteristics for the coupling (20). First elastomer section (28) is disposed between pocket (50) formed in outer member (22) and outer surface (52) of intermediate member (26) and provides a first spring rate. Second elastomer (44) is disposed between intermediate member (26) and inner member (24) and provides a second spring rate. At a low load, one of the elastomer sections (28) or (44) is delimited (snubbed) to provide dual-rate features for the flexible coupling (20). Both the sections (28) and (44) are preferably pure shear sections which are bonded in the same bonding operation.

Abstract: Torsional vibration dampers for piston engines, particularly for motor vehicle engines, are mounted on the crankshaft of the engine in a torsionally resistant manner. The hub (2) bears a first flyring (3) which concentrically surrounds the hub and is connected to the outer surface of the hub (2) via a rubber spring device (5) acting in the peripheral direction. Furthermore, a second flyring is provided which is secured to the hub (2) via a rubber spring device (8), again acting in the peripheral direction. To allow a torsional vibration damper of this kind to damp all vibrations generated by the engine using simple means, the rubber spring device (5) bearing the first flyring (3) is rigid while the rubber spring device (8) of the second flyring (4), which is located radially outside the first flyring (3), is flexible.

Abstract: The device for mechanically transmitting torque from a motor to a power transmission is especially suitable for marine propulsion systems as a sound-damping transfer coupling of a drive shaft. The device comprises a damping member with two halves mirror-symmetrical relative to a plane that is perpendicular to the axial direction. Each half is a composite body comprised of a first and a second conical rubber ring of opposite conical orientation. The second conical rubber ring is concentrically arranged inside the first conical rubber ring. A metallic conical center ring is vulcanized to the mantle surfaces of the first and second conical rubber rings that are facing one another. A metallic outer ring is vulcanized to an outer conical mantle surface of the first conical rubber ring and a metallic inner ring is vulcanized to an inner conical mantle surface of the second conical rubber ring.

Abstract: A torque variation absorbing device is comprised of an engine inertia body divided into a drive plate and a flywheel which is connected to the drive plate so as to be rotatable relative thereto, a space defined between the drive plate and the flywheel, an elastic member fixedly mounted on the flywheel and having at its outer periphery a plurality of projections, a plurality of plates arranged in such a manner that one end of the plate is secured on the projection and the other end of the plate is overlapped with one end of the adjacent plate which is secured on the adjacent projection, a ball interposed between each of the plates and an inner periphery of the drive plate, and a round shaft interposed between the other end of the plate and one end of the adjacent plate.

Abstract: An electromagnetic clutch 11 including a rotor assembly 14 with an attraction surface 14d, a field coil assembly with an electromagnetic coil 15 and a coil support yoke 16, and an armature assembly 19. The armature assembly has an armature hub 20 which can be connected to a driven shaft 18, a stopper plate 21 connected to the hub 20, a ring shaped armature 24 and a damper which connects the armature to the stopper plate. The damper has a rubber damper 27 which is held in a damper cover 30a, 30b or 125b. The damper cover includes an open side with bevelled edges. The bevelled edges have an arc-shaped area 30e, 30f or 125c that prevents stress contractions in the end of the rubber damper 27 or 126 to prevent cracking of the vulcanized rubber. A rivet 25 or 124 may also be in the rubber damper. A free end of the rivet has a bevelled arc-shaped area 25a or 124a that limits stress concentrations to prevent cracking of the rubber damper 27 or 126.

Abstract: An elastomeric torsional isolator comprises one or more elastomer layers disposed between a spur gear, having a pair of sloped surfaces, and a pair of rims having corresponding surfaces. The rims are attached to a flange extending from a shaft which has pinions for engaging a driven gear. By preloading the elastomer layers, the spur gear is frictionally connected to the flange and shaft, rather than mechanically engaged. The preloaded elastomer layers act as an elastomeric torsional isolator which accommodates variations in mechanical tolerances to balance the torque loading in a split torque drive system. Using elastomer layers for balancing the torque loading between a pair of torque splitting gear assemblies reduces the number of bearings required, increasing reliability and reducing part complexity.

Abstract: Unequal loading in multiple load path transmissions having independent gear trains 18, 20, interconnecting an input and an output shaft 12 and 14, respectively, is avoided through the use of a torsionally compliant gear 22 located in each gear train 18 and 20. Each torsionally compliant gear 22 includes a hub 40 and a ring 46 having external gear teeth 48 about the hub 40 in concentric spaced relation. A body 50 of elastomeric material is disposed between the hub 40 and the ring 46 and spring fingers 68 carried by the ring 46 at least somewhat radially extend toward the hub 40. Stops 84 are carried by the hub 40 and are positioned to be normally spaced from the spring fingers 68 when low loads are transmitted by the gear and to engage the spring fingers 68 when predetermined higher loads are to be transmitted by the gear.

Abstract: An elastic axial-rotation coupler has two inelastic devices for respective, inelastic connection to the two axially-rotatable structures, one of the devices defining an annular chamber therein. The annular chamber is closed axially and radially outwardly by the inelastic device defining it. At least one resilient element is in the annular chamber and connected to each device for rotatably coupling them resiliently and, thereby, so coupling the axially-rotatable structures which can be connected to the devices. The resilient element preferably is a rubber-elastic body. At least when the structures axially rotate the devices, a liquid is also in the annular chamber for impinging on the resilient element where the centrifugal force of its rotation with the devices would distort it. The liquid preferably has substantially the same density as the resilient element.

Abstract: An elastic axial-rotation coupler has two inelastic devices for respective, inelastic connection to the two axially-rotatable structures, one of the devices defining an annular chamber therein. The annular chamber may be open radially inwardly, but is closed axially and radially outwardly by the inelastic device defining it. At least one resilient element is in the annular chamber and connected to each device for rotatably coupling them resiliently and, thereby, so coupling the axially-rotatable structures which can be connected to the devices. The resilient element preferably is a rubber-elastic body. At least when the structures axially rotate the devices, a liquid is also in the annular chamber for impinging on the resilient element where the centrifugal force of its rotation with the devices would distort it. The liquid preferably has substantially the same density as the resilient element.

Abstract: A nearly spherical laminated elastomeric bearing has a non-circular latitudinal cross-section to accommodate high torque loads in elastomer bending rather than in shear. The nearly spherical profile of the bearing accommodates tilt primarily in shear. Both inwardly and outwardly extending lobes, or splines, are disclosed. The nearly spherical, lobed bearing is useful for a constant velocity joint.

Abstract: A clutch damper for absorbing vibrations occurring during transmission of torque in a clutch mechanism for automobiles or the like, wherein a plurality of buffer members stepwisely operated are provided between a hub slipped over a shaft and a clutch disc, and a spacer member for restraining a play of the members to transmit the torque smoothly is provided.

Abstract: A compliant gear which includes an inner hub portion, an outer ring gear portion, and a compliant laminate between the hub portion and the ring gear portion. The laminate includes a rigid laminar shim of generally uniform thickness sandwiched between a pair of elastomer layers of generally uniform thickness. The laminar shim and the elastomer layers extend generally parallel to the axis of rotation of the gear.

Abstract: The axial load-carrying ability of an axially-lobed, nearly-spherical elastomeric joint is enhanced by offsetting the elastomer layers so that there is more elastomer to react the load in compression. The improvement is useful in the application of the joint to a gimbal-like rotor system.

Abstract: A vibration-damping clutch disc with a hub from which a drive disc extends. Support rings on opposite sides of the drive disc are joined together by connections that pass through cutouts in the drive disc and are capable of transmitting torque. Intermediate rings are located between a central hub and each of the support rings and are joined to the hub by radially inner elastomeric damper rings. The intermediate rings have flanges joined by connections that also pass through cutouts in the drive ring. Radially outer elastomeric damper rings join the flange of each intermediate ring to the respective support ring, and one of the support rings has an outer flange with a friction ring on it to be pressed against a flywheel.

Abstract: A rotationally elastic coupling with two half-couplings can be twisted relative to one another, these half-couplings being connected with one another so as to transmit forces by means of a sprung intermediate link and by means of a movement-converting intermediate link which converts a rotation into a translational movement or, vice versa, a translational movement into a rotation. At least one sheet metal support is provided which is in contact at a radially outward position with one of the sprung intermediate links which in turn is supported rotationally solidly and frictionally at a radially inward position with one of the two half-couplings. The sheet metal support is subjected to forces directly or by means of a coupling element of the movement converting intermediate link, in particular an eccentric or a crank, this movement converting intermediate link being rotationally and rotationally solidly connected to the other half-coupling.

Abstract: The rotationally elastic coupling makes possible the utilization of large twist angles between the two half couplings by converting the relative twist of the two half couplings into a radially directed translation by means of an eccentric link, a crank link or another appropriate movement-converting link which converts a rotational movement into a translation; the radially directed translation has an effect in the radial direction on sprung elastic intermediate links. The rotationally elastic coupling is particularly suitable for application in motor vehicle clutches and as a suppressor.

Abstract: A new and unique valve actuating cam shaft driving system for rotating a cam shaft to actuate suction and exhaust valves of an internal combustion engine, which comprises a driving gear on a crankshaft, a shock absorbing gear assembly rotatably mounted on an intermediate shaft and a plurality of power transmission gears, said shock absorbing gear assembly including two gears, one of them meshing with the driving gear while the other one meshing with one of the power transmission gears. The shock absorbing gear assembly has a shock absorbing member incorporated therein for preventing any vibration or shock from being transmitted to the valve actuating cam shaft. Further, one of the power transmission gears which is rotatably mounted on the cam shaft has a shock absorbing member incorporated therein in the same manner as that in the shock absorbing gear assembly.

Abstract: An improved Bartlett type flexible coupling includes cylindrical laminated elastomeric bearing means between opposing cylindrical bearing surfaces and substantially flat laminated elastomeric bearing means between opposing flat bearing surfaces. One disclosed embodiment is an improved high angle fixed joint coupling comprising additional spherical sections connected to both of the driving and driven members and to each other so as to fix the axial position of each driving and driven member while allowing the members to rotate about axes which extend at an angle between 0.degree. and 90.degree.. The cylindrical and flat laminated elastomeric bearing means comprise alternating layers of an elastomeric resilient material and a nonextensible material to provide a more reliable coupling with improved performance.