Entries |
Document | Title | Date |
20110100776 | FRICTION CLUTCH SYSTEM - A friction clutch system mechanically couples a power source to a driven system of a vehicle while reducing the rotational inertia of the clutch system and yet still providing torsional damping within the system. In one embodiment, the friction clutch system includes a first friction disc assembly directly engaged with a second friction disc assembly. The first disc assembly may include protuberances that extend axially from a hub assembly, which in turn may include damping springs and an internal splined region for coupling to a splined, driven shaft. The second friction disc assembly includes openings, which may take the form of radial slots, configured to engageably receive the protuberances. The first disc assembly may be positioned adjacent to a pressure plate assembly or a flywheel. A floater plate may be located between the first and second friction disc assemblies. | 05-05-2011 |
20110132714 | FRICTION CLUTCH SYSTEM - A friction clutch system mechanically couples a power source to a driven system of a vehicle to reduce the rotational inertia of the clutch system, provide torsional damping within the system, and minimize vibration (e.g., rattling) between a floater and a flywheel. In one embodiment, the friction clutch system includes a first friction disc assembly directly engaged with a second friction disc assembly. The first disc assembly may include protuberances that extend axially from a hub assembly, which in turn may include damping springs and an internal splined region for coupling to a splined, driven shaft. The second friction disc assembly includes openings, which may take the form of radial slots, configured to engageably receive the protuberances. The first disc assembly may be positioned adjacent to a pressure plate assembly or a flywheel. A floater plate may be located between the first and second friction disc assemblies. | 06-09-2011 |
20110132715 | CLUTCH ASSEMBLY - The invention relates to a clutch assembly, comprising at least one friction clutch ( | 06-09-2011 |
20110192696 | CLUTCH - The invention relates to a clutch having a first clutch part ( | 08-11-2011 |
20110308910 | CLUTCH - A clutch having a pressure plate ( | 12-22-2011 |
20120031725 | TORQUE TRANSMISSION UNIT - A torque transmission unit having a friction clutch and a hydraulic actuation system. The hydraulic actuation system includes a stepped piston unit having a stepped piston which has a first piston section movable in a first pressure space and a second piston section movable in a second pressure space. The first pressure space and a portion of the second pressure space can be brought into fluid communication by means of an overflow line based on a position of the first piston section. The hydraulic actuation system also includes an actuation piston unit having an actuation piston that cooperates with the friction clutch. A third pressure space is associated with the actuation piston and is in fluid communication with the second pressure space via a pressure line. | 02-09-2012 |
20120067687 | PIVOT RING FOR A MANUAL CLUTCH - A pivot ring for a clutch assembly which has a first annular segment, a second annular segment, and a radial segment. The first annular segment has a first face on a front side of the pivot ring and the second annular segment has a second face, predominately opposing the first face, on a back side of the ring. The radial segment is disposed between the first annular segment and the second annular segment, connecting the first annular segment and the second annular segment. The first annular segment, the second annular segment, or both the first annular segment and the second annular segment can include axial protrusions with arcuately shaped pivot portions. Preferably, in the clutch assembly, the pivot ring is disposed between the diaphragm spring and the pressure plate, allowing for rotational freedom between the pressure plate and the diaphragm spring. | 03-22-2012 |
20120073930 | Drive system for mobile robot arm - A drive system for each arm of a mobile robot, each drive system including a drive motor and an adjustable clutch system interconnected between its associated arm and the drive motor and having a high friction locked position for enabling direct drive of the arm by the drive motor and a reduced friction slip position for enabling manual movement of the associated arm without back-driving the drive motor. | 03-29-2012 |
20120080284 | MULTI-PLATE CLUTCH AND MANUFACTURING METHOD OF CLUTCH HUB - A multi-plate clutch including a clutch hub having a cylindrical portion; a plurality of clutch plates splined to the outer periphery of the cylindrical portion of the clutch hub, and a plurality of spline teeth being formed on the outer periphery of the cylindrical portion of the clutch hub. A recessed portion is formed on the inner side of each spline tooth, and a weir portion is formed at one end of each recessed portion by depressing one portion of the spline tooth to the inner side on one end side of the cylindrical portion. Thus forming a depressed portion, and removing, with one portion of the depressed portion left behind, a portion of the cylindrical portion on the one end side of the one portion of the depressed portion. | 04-05-2012 |
20120181134 | ADAPTER RINGS FOR ATTACHING AUTOMOTIVE CLUTCH ASSEMBLIES TO DIFFERENT TYPES OF FLYWHEELS - Adapter rings for attaching automotive clutch assemblies to different types of flywheels are disclosed. A single adapter ring may be installed on different types of stock or aftermarket flywheels. In one embodiment, a multiple-disc clutch assembly may be mounted onto the adapter ring. The multiple-disc clutch unit may fit inside a stock bellhousing to enable the user to utilize the stock clutch release mechanism and simultaneously increase the holding power capability while maintaining light pedal effort. Aftermarket replacement OEM clutch units including the adapter ring may be used with higher horsepower engines in automotive vehicles with manual transmissions. | 07-19-2012 |
20120234643 | CHAIN HOIST HAVING A SLIP CLUTCH - A chain hoist having an electric drive motor connected to a gearbox by a slip clutch, wherein the slip clutch comprises an enlarged outer surface area in the form of recesses disposed in the outer surface of the slip clutch for improving heat dissipation with the recesses being implemented circumferentially in the form of a thread pitch in the outer surface of the slip clutch. | 09-20-2012 |
20120247908 | POWER TRANSMISSION DEVICE FOR A WATER PUMP - The present invention relates to a power transmission device for a water pump, including a pulley, a magnetic flux generating means, a disk assembly, and a hub assembly, wherein the disk assembly has a disk, a friction ring having the frictional contact with the hub assembly, and a resilient ring adapted to pressurize the friction ring toward the hub assembly, so that when the attracting magnetic flux of the magnetic flux generating means is not applied, the friction ring makes frictional contact with the hub assembly through the resilient pressurization of the resilient ring, whereas, when it is applied, the disk moves toward the pulley to allow the frictional contact between the friction ring and the hub assembly to be released. | 10-04-2012 |
20120292153 | POWER TRANSMITTING DEVICE - A main shaft has a shaft cylindrical portion extending from an outer periphery of a large-diameter portion. A drum has a drum cylindrical portion extending from an outer periphery of a drum plate portion. An axial forward end of the drum cylindrical portion is arranged in an inside of the shaft cylindrical portion. A frictional engagement unit of a clutch is provided in an inside of the shaft cylindrical portion. A motor generator has a rotor, which is firmly fitted to outer walls of the large-diameter portion and the shaft cylindrical portion and rotatable relative to a stator. A working-oil supply passage is formed in an inside of an input shaft. | 11-22-2012 |
20120298463 | WET TYPE MULTI-PLATE FRICTION CLUTCH - A clutch which can realize further reduction of drag torque, a method for reducing the drag torque of the clutch, and a clutch friction plate used in the clutch are provided. In a clutch | 11-29-2012 |
20130240316 | Rotational Coupling Device With Improved Actuator Assembly - A rotational coupling device is provided having an improved actuator for compressing friction discs coupled to an input ring and an output hub disposed about a rotational axis. The actuator includes a pole structure and a field shell housing a conductor, each with aligned, axially extending, radially spaced inner and outer poles. An armature is coupled for rotation with the input ring, but axially movable relative thereto and axially aligned with an end wall of the pole structure extending between the inner and outer actuator poles. First and second axially spaced actuator discs are disposed radially between the pole structure and the output hub with the first actuator disc rotatably coupled to the pole structure. The discs define cam surfaces along which a plurality of balls move to expand and contract the actuator discs upon relative rotation of the actuator discs. | 09-19-2013 |
20130299296 | Switchable Coupling, in Particular for Passenger Vehicle Auxiliary Assemblies - A switchable coupling, in particular for vehicle auxiliary assemblies, is provided. The coupling includes an actuating system actuated electrically, mechanically, pneumatically or hydraulically between a driving element and an output element, and a switching element movable between switching start and end positions counter to the force of one or more resetting elements upon actuation of the actuating system. In the end position, the switching element connects the driving and output elements such that the output element and an auxiliary coupling connected thereto rotate with the driving element. After deactuation, locking bodies located on the auxiliary coupling produce an connection between the driving and output elements which continues to conduct torque between the driving and output elements. The connection is interrupted only when the rotational speed of the driving element falls below a limit value. The coupling does not require a permanent supply of power in the open or closed state. | 11-14-2013 |
20130306426 | STARTING APPARATUS - In a hydraulic transmission apparatus, a lockup piston of a lockup clutch mechanism is placed on the opposite side of first and second friction plates from a sidewall portion of a front cover. A damper device is placed on the opposite side of the lockup piston from the first and second friction plates. An outer peripheral portion of the lockup piston is located closer to the outer periphery than an outer peripheral portion of a flange member. A part of the lockup piston is placed in a region located between first and second springs and a third spring of the damper device in a radial direction and in the range of an axial width of the third spring located closer to the lockup piston. | 11-21-2013 |
20130313063 | DRIVING FORCE TRANSMISSION DEVICE - Provided are devices and methods to minimize drag caused by abrasion powder between clutch plates and to prevent a faulty engagement or release of a dry clutch. A hybrid driving force transmission device is provided, wherein a multi-plate dry clutch is arranged in a sealed space and used for connecting/disconnecting transmission of a driving force is provided with drive plates, driven plates, friction facings, and a housing cover The drive plates are splined to a clutch hub, and have, in the sections thereof that are splined to the clutch hub, vent holes for channeling the air flowing in the axial direction. The driven plates are splined to a clutch drum. The housing cover has an external air intake hole for drawing external air into the sealed space, and an external air discharge hole for discharging the airflow from the sealed space to the outside. | 11-28-2013 |
20140048376 | CLUTCH DEVICE - A clutch device having at least one torque transmission device, which has at least one pressure plate which is connected non-rotatingly to a housing component, a pressing plate which may be moved non-rotatingly and in an axial direction with respect to the pressure plate, and a clutch plate which may be clamped in a frictionally engaged manner between the pressure plate and the pressing plate, and having at least one wear adjustment device which has at least one ramp ring which is rotatable in a circumferential direction by means of at least one coil spring for sensing and for compensating for wear-induced axial play between the housing component and the pressing plate, wherein the coil spring is mounted on the ramp ring side and on the housing component side, there being a hook-in securing means provided between the ramp ring and the coil spring. | 02-20-2014 |
20140124321 | DISCONNECT CLUTCH FOR MODULAR HYBRID ELECTRIC VEHICLE - An assembly includes a shell fixed against axial displacement, a clutch including first plates secured to the shell by a spline, a member fixed against axial displacement, supporting the shell and secured to the shell by the spline, a retainer for limiting axial movement of the first plates and member along the spline, and a piston for forcing the plates along the spline toward the retaine. | 05-08-2014 |
20140131160 | CLUTCH PLATE, CLUTCH UNIT AND DRIVING FORCE TRANSMISSION SYSTEM - An annular wet clutch plate has lubrication grooves formed of multiple grooves in at least one of both axial end faces, the at least one of the both end faces having the lubrication grooves and a frictional engagement surface. The frictional engagement surface has a plurality of small grooves having a width and a depth that are smaller than those of the lubrication grooves. At least one of the small grooves is extended in a direction that crosses a circumferential direction of the annular clutch plate. A mean value of surface roughness of the frictional engagement surface having the small grooves is from 3.0 μm to 4.0 μm when the surface roughness is measured with the use of Rz at three positions that are offset from each other by 120° in the circumferential direction around a central axis of the annular clutch plate. | 05-15-2014 |
20140166424 | COUPLING DEVICE - A coupling device including at least one torque transmitting device, which can be engaged and/or disengaged in the axial direction by a lever element and which is frictionally engaged in the engaged state, and including at least one wear compensation device, which has at least one rotatable ramp ring that can be clamped by the lever element at least temporarily and which has at least one rotatably mounted spindle drive with a spindle shaft, the spindle drive acting on the ramp ring. The wear compensation device has at least two continuously variable free running units which act in different rotational directions, a first free running unit being designed to rotate the spindle shaft when a wear state of the torque transmitting device is sensed and a second free running unit being designed to prevent a reverse rotation of the spindle shaft. | 06-19-2014 |
20140284163 | DRIVING FORCE TRANSMISSION APPARATUS AND CONTROLLER FOR DRIVING FORCE TRANSMISSON APPARATUS - A driving force transmission apparatus includes: an electric motor; a multi-disc clutch including outer clutch plates and inner clutch plates that are disposed coaxially with each other so as to be rotatable relative to each other and that are frictionally engaged with each other by being pressed in an axial direction; an input rotary member that rotates together with the outer clutch plates; an output rotary member that rotates together with the inner clutch plates; a cam mechanism that generates cam thrust force for pressing the multi-disc clutch in the axial direction upon reception of torque generated by the electric motor; a strain sensor that detects reaction force against the cam thrust force; and a spring member that is disposed between the cam mechanism and the strain sensor and that buffers an impact transmitted from the cam mechanism to the strain sensor. | 09-25-2014 |
20140284164 | DRIVE POWER TRANSMISSION SYSTEM - A drive power transmission system includes-a clutch hub, a clutch drum and a dry clutch. The dry clutch includes-first and second clutch plates, a friction facing and a cover member. The first clutch plate is joined to the clutch hub. The second clutch plate is joined to the clutch drum. The cover member has an external air intake hole and an external air discharge hole. These holes of the cover member are positioned such that, due to rotation of at least one of the clutch hub and the clutch drum, an air flow is generated that draws external air is through the external air intake hole and along the clutch hub to a radially inward location of reduced air pressure, then passes radially outward to a radially outward location of increased air pressure, and then passes along the clutch drum and out the external air discharge hole. | 09-25-2014 |
20150008089 | Clutch Arrangement - A clutch arrangement for a drivetrain of a vehicle comprises a first component, a second component, and a conveying component. The first component has an at least partially disk-shape and has a first friction surface at the disk-shaped portion. The second component has an at least partially disk-shape and has a second friction surface at the disk-shaped portion. The first friction and second friction surfaces are configured and arranged to be brought into a frictional engagement with each other and contact a fluid medium in operation. The conveying component comprises a conveying surface for the fluid medium and coupled to a drive component to be substantially fixed with respect to rotation relative to it such that the conveying surface causes a flow of the fluid medium during a rotation relative to the fluid medium. | 01-08-2015 |
20150041274 | CLUTCH COUPLED TO GAS TURBINE ENGINE AND METHOD FOR COOLING - A gas turbine engine clutch includes a dry clutch assembly, forward and aft working areas, and a shaft. The dry clutch assembly is operative to receive power from a gas turbine engine. The dry clutch assembly is configured to selectively engage the gas turbine engine with a driven source, and has an axial opening extending therethrough. The forward and aft working areas are disposed at axially opposite ends of the dry clutch assembly. The shaft extends axially through the axial opening of the dry clutch assembly, and defines an axial fluid flow passage therethrough in liquid fluid communication with the forward and aft working areas. | 02-12-2015 |
20150068861 | ADJUSTMENT DEVICE FOR A FRICTION CLUTCH - An adjustment device ( | 03-12-2015 |
20150075938 | BALANCING ELEMENT AND METHOD FOR BALANCING A CLUTCH - A balancing element for balancing a clutch, including a shaft for inserting into a housing opening of a clutch cover, a head axially protruding from the shaft for limiting an insertion depth, and cutting edges radially protruding from the shaft for plastically deforming a wall surrounding the housing opening. A deforming stop is arranged at a distance from the cutting edges between the cutting edges and the head in order to plastically deform a part of the wall between the cutting edges and the deforming stop. By the plastic deformation of the wall into an area between the cutting edges and the deforming stop, the balancing element can be accommodated captively even under operating conditions without additional tools, whereby simple and economical production of an operationally reliable clutch is enabled. | 03-19-2015 |
20150114785 | PLATE CARRIER - A plate carrier for a multi-plate clutch comprises: an annular member with a first circumferential face and a second circumferential face; a toothing in the first circumferential face of the annular member, having circumferentially distributed teeth and gaps; at least one groove in the second circumferential face of the annular member, wherein the groove extends over a circumferential portion of the annular member, wherein the groove and the toothing intersect one another, so that radial apertures are formed in the regions of intersection between the groove and the tooth gaps. A multi-plate clutch can be provided with such a plate carrier. | 04-30-2015 |
20150114786 | DRIVE ASSEMBLY WITH A CLUTCH - A drive assembly comprises a rotatingly drivable housing an output part and a clutch arranged between the rotatably drivable housing and the output part. The clutch comprises a first clutch part held relative to the housing in a rotationally fixed and axially movable way, as well as a second clutch part fixedly connected to the output part arranged in the rotatably drivable housing; a controllable actuator for actuating the clutch; a target element which, upon actuation of the clutch, is axially movable; and a sensor for recording switched positions of the clutch; wherein the first clutch part comprises an annular portion arranged outside the housing, and a plurality of cam elements that extend axially from the annular portion through the apertures in the housing into the interior of the housing. | 04-30-2015 |
20150122608 | PISTON FOR A CLUTCH BRAKE ASSEMBLY - A clutch-brake assembly transmits force to rotate a shaft and to retain the shaft against rotation. The assembly includes a plurality of force transmitting members which transmit force between an improved piston and a base member. A plurality of springs urge the piston to move relative to the base member. A plurality of spring retainers are disposed between the base member and the piston. Each of the spring retainers includes a plurality of projecting portions extending from the base portion. Each of the springs is telescopically disposed on one of the projecting portions. Each of the force transmitting members is disposed between adjacent spring retainers. The improved piston includes a cast light weight body securing at least one wear plate made from a wear resistant material with wear surfaces exposed on an outer flange of the cast body. | 05-07-2015 |
20150330460 | CLUTCH DEVICE - A clutch device comprising a counterplate, a pressure plate displaceable to a limited extent in an axial direction to frictionally clamp a clutch disc between the pressure plate and the counterplate, a lever element acting on the pressure plate to displace the pressure plate in an axial direction, a central flange at least partially disposed between the pressure plate and the lever element and having at least one opening for the pressure plate and/or the lever element to pass through, and a wear compensation device for automatically adapting to clutch wear, wherein to prevent any undesired wear compensation, the lever element is engageable with the central flange. | 11-19-2015 |
20150345573 | ELECTROMAGNETIC CLUTCH AND MANUFACTURING METHOD THEREOF - An end surface portion of a rotor includes a friction surface and an end surface, which are spaced from each other in an axial direction. The armature is attracted and attached to the friction surface of the rotor by an electromagnetic attractive force when a solenoid coil is energized. The stator is opposed to the end surface of the end surface portion. A thermal fuse is held by a portion of a resin member located in an opening of the stator and is melted and disconnected to cut supply of an electric current to the solenoid coil when a temperature of the thermal fuse is equal to or higher than a predetermined temperature. The resin member has a recess that is formed in a predetermined position of a surface of the resin member, which is adjacent to the thermal fuse. | 12-03-2015 |
20160025157 | BI-DIRECTIONAL FRICTION CLUTCH - A clutch includes an input, an output, first and second control disks, and a control. The output and the input may be releasably coupled. The first control disk may be positioned between the input and the output. The first control disk and second control disk may be coupled and the output may be moveable between the control disks. The control may apply a torque to the second control disk, establishing a relative rotation between the output and the first control disk and decoupling the output and input. | 01-28-2016 |
20160047425 | CLUTCH, CLUTCH FORMING PUNCH, AND METHOD OF MANUFACTURING CLUTCH - A clutch comprises: an annular friction plate; an annular metal support having a bottom for supporting thereon the friction plate, an inner wall and an outer wall coaxial with the inner wall, both walls perpendicular to the bottom; and a swaging structure consisting of a first and a second multiplicity of swaging sections provided along the inner wall and along the outer wall, respectively, at equal angular intervals to hold the friction plate on the bottom in such a way that the latter swaging sections are offset from the former swaging sections in the circumferential direction so as not to coincide with the former swaging sections with respect to any radial directions. Such clutch can be manufactured by appropriate use of an inventive punch adapted to form the swaging structure discussed above. | 02-18-2016 |
20160053827 | ELECTROMAGNETIC CLUTCH ASSEMBLY - An electromagnetic clutch assembly includes a rotor assembly operable to rotate about an axis. The electromagnetic clutch assembly also includes an armature assembly operable to rotate about the axis. The electromagnetic clutch assembly also includes an electromagnetic coupling system operable to generate a magnetic field. The magnetic field induces the rotor assembly and the armature assembly against one another along the axis for frictional engagement such that the rotor assembly and the armature assembly rotate together. The electromagnetic clutch assembly also includes an air gap defined between the rotor assembly and the armature assembly when the rotor assembly and the armature assembly are in frictional engagement. In another implementation, at least one plate is positioned between the rotor assembly and the armature assembly such that magnetic flux passes through the at least one plate. The plate is formed from a mixture of powdered metal and solid lubricant. | 02-25-2016 |
20160076601 | CLUTCH APPARATUS WITH LOCKABLE ACTUATING DEVICE - A number of variations may include a clutch apparatus having at least one clutch and having an actuating device for actuating the clutch, the actuating device being movable from an opening position, in which the clutch is open, into a closing position, in which the clutch is closed. The actuating device can be locked with form-fit action in the closing position or opening position. | 03-17-2016 |
20160097429 | Disconnect Clutch - A disconnect clutch and method of controlling the connection of a parasitic load to an engine disposed on a machine is disclosed. The disconnect clutch may comprise a flywheel assembly, a friction plate and a coupling. The flywheel assembly may include a flywheel having a cavity, a chamber, a piston moveable between a contracted position and an expanded position, a pressure plate, a lever, and a coupling operably connected to the friction plate. The flywheel may include an end plate. The chamber may be defined by the flywheel and the piston. The lever may apply an activation force to the pressure plate when the piston is in the expanded position. The friction plate may be attached to and rotatable with the flywheel assembly when the piston is in the expanded position and generally stationary when the piston is in the contracted position. | 04-07-2016 |
20160116003 | CLUTCH MECHANISM FOR MOTOR VEHICLES - A clutch mechanism for motor vehicles, having a dry individual clutch or a dual clutch, transmits torque from an engine to the transmission or selectively to one of two transmission sections. The clutch has a central disk and, on at least one side, a pressure plate. In order to further improve the cooling effect, especially in the region of the central disk and of the pressure plates, the central disk and/or at least one of the pressure plates is composed of two partial plates, wherein the mutually facing inner surfaces of the partial plates are provided with intermeshing vanes such that the intermeshing vanes of the two partial plates form an interior space having through channels which brings about flow in a radial direction or in a direction having a radial component. | 04-28-2016 |
20160131198 | FRICTION CLUTCH ASSEMBLIES - A friction clutch assembly, preferably for a hybrid cooling pump. The friction clutch assembly includes a friction lining carrier member, a friction lining member, a compression spring member, a clutch carrier member and a flux plate member. A solenoid can be utilized to control the compression of the spring member. The friction clutch assembly has a preferred use in a hybrid coolant pump with two modes of operation, an electric motor operation, and a mechanical pulley-driven operation. The friction clutch assembly can be positioned inside a motor housing. The softening compression spring can minimize parasitic clutch power consumption. | 05-12-2016 |
20160146267 | FRICTION CLUTCH - A friction clutch for a motor vehicle for frictional coupling a first shaft and a second shaft, comprising a plurality of clutch discs articulated interactively on a clutch basket and a clutch hub, wherein the first shaft is connected to the clutch basket and the second shaft is connected to the clutch hub and the clutch discs are selectively coupled by an associated actuation unit. Associated with the clutch basket is an oil-collection and guiding arrangement through which oil spun off the clutch basket is collected and delivered into a collection region outside the clutch basket. A switching device coupled to the actuation unit controls the backflow of the oil from the collection region outside the clutch basket (KK) in the direction of the clutch discs. | 05-26-2016 |
20160186848 | Pendulum Damper Device and Lock-Up Device for Torque Converter - A pendulum damper device includes a rotary member rotatable about a rotational axis. The rotary member includes a plurality of guide groove parts circumferentially aligned. The pendulum damper device also includes a plurality of pendulum units supported by the guide groove parts. The pendulum units swing along the guide groove parts so as to attenuate vibration when the rotary member is rotated. In addition, the pendulum damper device includes a plurality of stoppers mounted to the rotary member. Each of the stoppers is contacted to a part of each of the pendulum units so as to restrict a swing range of the each of the pendulum units. | 06-30-2016 |
20160195142 | ROTOR-INTEGRATED SEPARATING CLUTCH WITH TWO-STAGE CLUTCH TRANSMISSION | 07-07-2016 |
20160201734 | DAMPER PULLEY WITH LEAF SPRING CLUTCH | 07-14-2016 |
20160252140 | Clutch with Decremental Torque Function | 09-01-2016 |
20170234389 | PRESSURE PLATE WITH PHASE CHANGE MATERIAL | 08-17-2017 |