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Progressive engagement

Subclass of:

192 - Clutches and power-stop control

192030000 - CLUTCHES

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
192520100 Progressive engagement 53
20080264747Soft Start Clutch Controller - A clutch actuator for an electromechanical clutch having a solenoid actuating coil initially provides power to the solenoid at a high rate by using a high duty cycle pulse with a modulated controller. When the initial engagement of the clutch elements is sensed by a decrease in current, the duty cycle of the pulse with modulator is reduced and thereafter increased in a control fashion to accomplish a soft start.10-30-2008
20090288927MULTI-AREA CLUTCH ASSEMBLY - A torque transmitting assembly includes an actuator for engaging a torque transmitting element. A mechanism is connected to the actuator. The mechanism is operable to selectively allow fluid communication therethrough. The mechanism communicates between two separate fluid spaces located on opposite sides of the actuator. During movement of the actuator, a fluid is allowed to transfer through the mechanism between the two separate fluid spaces.11-26-2009
20150021138BI-DIRECTIONAL ACTUATOR FOR A MOTOR VEHICLE DRIVE TRAIN - A bi-directional actuator for a motor vehicle drive train is provided. The actuator includes a first axially stationary part; a second axially stationary part; an activation part between the first axially stationary part and the second axially stationary part, the activation part being axially movable to alternately contact the first axially stationary part and the second axially stationary part; and an actuation part engaging the first axially stationary part and the second axially stationary part, contact between the activation part and the first axially stationary part causing the first axially stationary part to force the actuation part in a first axial direction, contact between the activation part and the second axially stationary part causing the second axially stationary part to force the actuation part in a second axial direction.01-22-2015
20150337912TEMPERATURE COMPENSATED TORQUE LIMITING VALVE - A flow limiting and temperature compensated orifice assembly includes a valve body having an orifice and a plurality of exterior bypass channels or openings. The valve body is disposed in a complementary cylindrical chamber in a housing in the fluid line which also receives a bi-metallic disc and a rubber washer. The bi-metallic disc is disposed adjacent one end of the body and defines a center opening which aligns with the orifice opening. In a first, higher temperature position or state, the bi-metallic disc engages the adjacent end face of the body and closes off flow through the exterior channels and allows fluid flow only through the flow limiting and thus torque controlling orifice. In a second, lower temperature position or state, the bi-metallic disc has flipped and moved away from the end face of the body and allows fluid flow through the exterior bypass channels as well as the orifice opening.11-26-2015
20160131201TRANSMISSION HUB AND SLEEVE ASSEMBLY - An assembly includes a hub and a sleeve in which the hub resides. The hub includes a first set of teeth and the sleeve includes a second set of teeth that engages with the hub's first set of teeth. The sleeve includes at least one tooth that has a reduced height compared to the rest of the sleeve's teeth, and the hub has a set of landings with at least one landing that is shallower than the rest of the landings of the hub. The hub and sleeve are configured such that the at least one tooth of reduced height resides in the at least one shallower landing. The hub further includes a first face and a second face that has the same configuration as the first face. The combination of the same first face and second face and the reduced tooth height and shallower landing provides a hub and sleeve assembly that can be assembled in one of only six functional configurations.05-12-2016
20160178017TRANSMITTER FOR A SYNCHRONISING ASSEMBLY OF A MANUAL TRANSMISSION AND A METHOD FOR PRODUCING A TRANSMITTER06-23-2016
192520400 Variable force 3
20080308377CLUTCH MECHANISM - A clutch mechanism has rotational driving force outputting members connected to a rotational driving force input system, rotational driving force receiving members connected to a rotational driving force output system, and a pressing mechanism for pressing the rotational driving force outputting members against the rotational driving force receiving members to keep the rotational driving force outputting members and the rotational driving force receiving members in contact with each other. The pressing mechanism has a constant load applying means and a variable load applying means for together generating the pressing force which brings and keeps the rotational driving force outputting members and the rotational driving force receiving members in contact with each other. A value of a load generated by the constant load applying means being set to be less than the maximum non-slide limit, i.e., the maximum of the non-slide limit which is required for keeping the rotational driving force outputting members and the rotational driving force receiving members in contact with each other to transfer the rotational driving force.12-18-2008
192520500 Initial engagement causes increase in applied force 2
20100282562CLUTCH SYSTEMS AND METHODS - Some embodiments of a clutch system may an output member and an input member can be biased to engage one another along opposing clutch surfaces. When input member drives rotation of the output member and a fan blade device secured thereto, the resulting fan thrust provides supplemental engagement to the opposing clutch surfaces.11-11-2010
20130313061CLUTCH HAVING A PRE-CLUTCH AND A MAIN CLUTCH - A clutch having a pre-clutch and a main clutch, where the pre-clutch can be brought to an engaged or a disengaged state by a tensioning means, the pre-clutch being connected to the main clutch by means of an operative connection in such a way that the disengaged position and the engaged position are transmitted to the main clutch, and where the tensioning means is supported on a clutch basket of the main clutch.11-28-2013
192520600 Yielding 1
20100025175LOCK-UP CLUTCH FOR A HYDROKINETIC COUPLING DEVICE INCLUDING IMPROVED CONNECTION MEANS - A lock-up clutch (02-04-2010
192530100 Frictional and positive 43
20090026036DISC CARRIER OF A FRICTION CLUTCH - The present invention according to some embodiments relates to a disc carrier of a friction clutch, characterized by a subassembly of a modular structure which is composed of interconnectable component parts including a holding ring, at least one web, and a base plate, as well as a hub which is connected to the base plate.01-29-2009
20120073929All Wheel Drive Speed Synchronization and Connection - A vehicle driveline includes a power source, a transmission connected to the power source and including an output driveably connected to primary road wheels, a driveshaft, a synchronizer that opens and closes a drive connection between the output and the driveshaft, and a clutch that alternately opens and closes a drive connection between the driveshaft and secondary road wheels. A control executes synchronization and connection strategies using one of singular, overlapping and sequential activation of the driveline components that produce all-wheel-drive on-demand.03-29-2012
20120312656SYNCHRONIZER ENGAGEMENT RELATIVE SPEED-BASED FORCE PROFILE - A synchronizer system and method allow synchronization of a plurality of rotating parts by determining a measured or calculated starting relative speed of the plurality of rotating parts, and based on the starting relative speed selecting a predetermined synchronizer force profile from among a plurality of candidate profiles for synchronizing the plurality of parts prior to engagement. The selected profile is retrieved and applied to a synchronizer between the plurality of parts to be engaged, and when the relative speed between the plurality of parts to be engaged becomes substantially zero, the plurality of parts can then be engaged to one another.12-13-2012
192530300 With blocker 39
20090133981Gear Shifting Point for the Establishment of a Connection, Fixed Against Rotation, Between a Gear and a Shaft - The invention relates to a gear shifting point (05-28-2009
20100065391DOUBLE-CONE SYNCHRONIZER FOR VEHICLE TRANSMISSIONS - The synchronizer comprises: a hub, an actuating sleeve, two synchronizing rings each having a conical surface, two inner rings each having a conical surface, two intermediate rings each having a first radially outer conical surface arranged to be brought into contact with the conical surface of the associated synchronizing ring and a second radially inner conical surface arranged to be brought into contact with the conical surface of the associated inner ring, two engagement ring gears intended to be torsionally coupled each to a respective idle gearwheel. According to the invention, the synchronizer further comprises two spacer rings which are each interposed between the respective engagement ring gear and the respective inner ring and each free to rotate relative to these two components so as to prevent the respective opposite axial surfaces from coming into contact with each other.03-18-2010
20110079482SHIFT DEVICE ADAPTED FOR TRANSMISSION - A sleeve has splines formed with a groove, a high-speed-stage slanting surface and a turn-off slanting surface. A synchronizer ring has splines and first projecting portions. Lever members are arranged among the sleeve, the hub and the synchronizer ring to transmit pushing force from the sleeve to the synchronizer ring. The synchronizer ring is pushed against a speed gear to generate frictional torque, being pushed by the lever members pressed by a high-speed-stage slanting surface. The lever members turn over and transmit pushing force applied from a turn-over slanting surface to the synchronizer ring as to press a frictional surface against a cone surface to synchronize them when the sleeve moves in a direction opposite to the speed gear. A diameter of the first inner diameter portion is set larger than that of the second inner diameter portion.04-07-2011
20120090941CLUTCH SLEEVE FOR A SHIFT CLUTCH AND SHIFT CLUTCH - A clutch sleeve is provided for a shift clutch having a synchronizing device, which includes, but is not limited to a clutch body, which is connected in a rotationally-fixed manner to a gear wheel mounted so it is rotatable on a shaft and has coupling teeth and a friction cone as well as a synchronizing ring having a counter cone and blocking teeth, and which has shift teeth, the clutch sleeve having shift teeth, which are designed in such a manner that a first group of the shift teeth cooperates with the blocking teeth until a synchronized speed is reached and a second group of the shift teeth engages in the coupling teeth after the synchronized speed is reached.04-19-2012
20120103748SYNCHRONIZATION DEVICE FOR A MANUAL TRANSMISSION - A synchronizer device (05-03-2012
20120211320SYNCHRONIZER SLEEVE FOR A TRANSMISSION AND METHOD OF MAKING - A synchronizer sleeve for use in a transmission and method of making is disclosed herein. The synchronizer sleeve having: a plurality of gear teeth integrally formed on the inner diameter of the ring member, wherein the distal ends of the plurality of gear teeth extend from the inner diameter and comprise a portion of at least one of a pair of sides; wherein each of the distal ends of the plurality of gear teeth have a top portion, a bottom portion and a pair of opposing sides extending between the top portion and the bottom portion and each distal end is separated from each other by a recess located between each one of the pair of opposing sides; wherein no recess is formed adjacent to the top portion of the plurality of gear teeth; and wherein no secondary processing steps are required to reshape the synchronizer sleeve.08-23-2012
20120217115METHOD FOR PRODUCING A RING OF A SYNCHRONIZING DEVICE, AND A RING OF A SYNCHRONIZING DEVICE - A ring of a synchronizing device of a vehicle transmission includes a friction surface that interacts with a friction surface of another ring of the synchronizing device and at least one slide surface configured to slidably seat on an abutment surface of the synchronizing device. At least one curved groove is cut into the at least one slide surface by a whirling milling operation.08-30-2012
20120292152SYNCHRONIZING DEVICE FOR TRANSMISSION - A synchronizing device for a transmission may include a clutch hub splined on a rotation shaft, a sleeve engaged to an external circumferential portion of the clutch hub by interposing a blocking key therebetween, the sleeve being movable axially, a clutch gear having a cone surface and disposed at both sides of the sleeve without an interference with the rotation shaft, and a blocker ring disposed between the clutch hub and the clutch gear and frictionally engaged to the cone surface of the clutch gear, wherein the blocker ring includes a servo load exerted portion and a key load exerted portion disposed alternately in a circumferential direction of the blocker ring and respectively having a key contacting surface, and the key contacting surface of the servo load exerted portion may be disposed axially apart from the key contacting surface of the key load exerted portion by a predetermined distance.11-22-2012
20130068582SYNCHRONIZER SLEEVE AND MANUFACTURING METHOD THEREOF - The present invention provides a synchronizer sleeve and a manufacturing method thereof. The synchronizer sleeve is formed by powder metallurgy using a powder mixture having iron as a main ingredient, 0.2 to 0.3 wt % of carbon, 0.5 to 4.0 wt % of nickel, 0.2 to 2.0 wt % of molybdenum and other indispensable impurities.03-21-2013
20140374208FRICTION BRAKE FOR A DOG CLUTCH - A dog clutch, includes a first ring secured to an overrunning brake rotatable race, including first teeth, a first disc, the second ring angularly displaceable relative to the discs, a non-rotating, axially displaceable second ring including second teeth engageable with the first teeth and a second disc engageable with the first disc, a first spring urging the discs into mutual contact, and a second spring urging the first and second rings apart.12-25-2014
20140374209SYNCHRONIZER RING - The invention relates to a synchroniser ring (12-25-2014
192530320 Interposed friction members 3
20100012452SYNCHRONIZING RING OF A SYNCHRONIZING DEVICE - A synchronizing ring for a synchronizing device of a motor vehicle gearing, with a ring body. The ring body has a plurality of recesses, and frictional elements are arranged in the recesses.01-21-2010
20100252386SHIFT DEVICE ADAPTED FOR TRANSMISSION - A shift device includes a shaft, a hub, a sleeve, a pair of speed gears sandwiching the hub, a first synchronizer ring, a second synchronizer ring, a plurality of thrust pieces disposed in cut-off portions of the hub and a pair of springs pushing the thrust pieces outwardly in a radial direction toward the sleeve. The thrust pieces moves together with the sleeve when the sleeve is moved toward the one of the speed gears, while the thrust pieces moves inwardly in the radial direction against the first and second springs when the sleeve is moved halfway toward the other of the speed gears so that the thrust pieces move in an axial direction and swing to provide different self-servo functions according to the above shift directions when they contact with the hub.10-07-2010
20110174586LOW LOSS SYNCHRONIZATION KEY - A synchronizer assembly is provided for a gearbox of a power train of a vehicle. The synchronizer assembly includes, but is not limited to a synchronizer hub, one or more axially movable synchronizer rings, an axially movable synchronizer sleeve, and a synchronizer key. The synchronizer hub is intended for engaging with a shaft of the gearbox. The axially movable synchronizer rings include, but are not limited to synchronizer frictional surfaces for frictional engagement with gearwheel frictional surfaces of gearwheels of the gearbox. The axially movable synchronizer sleeve is intended for engaging with the synchronizer hub and with the synchronizer rings. The synchronizer key is arranged between the synchronizer hub and the synchronizer sleeve. The synchronizer key comprises one or more release members for engaging the synchronizer rings in an axial direction such that the synchronizer rings are movable away from the gearwheel frictional surfaces of the gearwheels of the gearbox.07-21-2011
192530330 Member extending axially between friction surfaces 2
20090114496Friction Coupling - A friction coupling for locking a shaft relative to a hub is disclosed. The friction coupling includes a radially deformable inner sleeve, a radially deformable outer sleeve, an annular piston which is axially movable relative to the inner sleeve and the outer sleeve, the annular piston having a conical surface, which cooperates with the inner sleeve and/or the outer sleeve and which is arranged to deform the inner sleeve and/or the outer sleeve when the annular piston is moved relative to the inner sleeve and the outer sleeve so as to provide the locking. In at least one embodiment, the friction coupling further includes at least one actuating device to produce a movement of the annular piston for locking the friction coupling, and at least one deactuating device to produce a movement of the annular piston for unlocking the friction coupling. The at least one actuating and deactuating devices are located, seen in the axial direction, on the same side of the annular piston.05-07-2009
192530331 Blocker on axially extending stepped pin 1
192530332 Resilient detent pin 1
20160146269SYNCHRONIZATION DEVICE FOR A MANUAL TRANSMISSION - Provided is a synchronization device for a manual transmission, which is capable of reducing an axial length of a hub sleeve. The synchronization device for a manual transmission includes a clutch hub, a hub sleeve, a gear piece, a synchronizer ring, and shifting key mechanisms. A synchronizer key of each of the shifting key mechanisms includes a key positioned in a circumferential direction with respect to the clutch hub and mounted in an axially and radially displaceable state, and a moving object mounted in a radially movable state into a radial mounting hole formed through the key and biased radially outward by a coil spring. A top portion of the moving object, which is projected radially outward from the mounting hole to engage with an inner circumferential surface of the hub sleeve, is formed into a shape having an engagement portion extending linearly in an axial direction.05-26-2016
192530340 Outward tooth or lug on friction member 19
20090288928SYNCHROMESH DEVICE FOR TRANSMISSION - A synchromesh device for a transmission includes: a shaft; a sleeve; an idler gear; a gear piece; a synchronizer ring; a first spline, a second spline and a third spline, the first spline of the sleeve being engageable with each of the second spline of the gear piece and the third spline of the synchronizer ring; and a first chamfer, a second chamfer and a third chamfer, formed at one end of the first spline, one end of the second spline and one end of the third spline, respectively, for a spline-engagement and for a thrust-through operation. The first chamfer of the sleeve includes a small-diameter side thrusting through the third chamfer at the time of shifting and a large-diameter side thrusting through the second chamfer at the time of shifting. A chamfer angle of the large-diameter side is smaller than a chamfer angle of the small-diameter side.11-26-2009
20090314599Synchronizing Ring And Gear Changing Transmission For A Vehicle - The invention relates to a synchronizing ring (12-24-2009
20100288594Lash Control in a Transmission Coupler - A releasable drive connection includes a ring including teeth angularly spaced about an axis, and grooves, each groove formed in an axial end of the ring and aligned angularly with a space between consecutive ring teeth; and a sleeve supported for axial movement, including first teeth angularly spaced about the axis, engageable with the ring teeth, each first tooth having a first length; and second teeth, each second tooth aligned with one of the first teeth, having an axial length shorter than the first length, and including a pointed end for engaging one of the grooves and permitting the first tooth to extend between and engage consecutive gear teeth.11-18-2010
20120145507SYNCHRONIZER ASSEMBLY - A synchronizer assembly includes a synchronizer sleeve that engages a first gearwheel of the transmission. The synchronizer sleeve and the first gearwheel are rotatable about a shaft, and the synchronizer sleeve is axially moveable along the shaft. The synchronizer assembly further includes a synchronizer ring that contacts a second gearwheel of the transmission to selectively engage the synchronizer sleeve. The synchronizer ring includes a synchronizer spring that selectively abuts the second gearwheel to push the synchronizer ring against the synchronizer sleeve, and a plurality of lugs that engage the second gearwheel. The synchronizer spring is retained on the plurality of lugs.06-14-2012
20120186929TRANSMISSION SYNCHRONIZER ASSEMBLY - A transmission synchronizer assembly is provided that alleviates noise associated with functional clearances and backlashes. A synchronizer ring is provided that has a periphery with at least one tab extending at least partially radially at the periphery. An annular hub has at least one recess configured to receive the at least one tab to axially align the synchronizer ring with the hub. The recess and the tab define a clearance when the tab is received in the recess. A damping material is provided in the clearance such that the damping material contacts the annular hub when the synchronizer is moved about the axis of rotation relative to the annular hub. Such movement may occur during engagement of an annular sleeve with a gear whose speed is synchronized with the sleeve by the synchronizer ring.07-26-2012
20130333998FRICTION RING, SYNCHRONIZER UNIT, AND GEAR CHANGING TRANSMISSION FOR A VEHICLE - The invention relates to a friction ring for a synchronizer unit (12-19-2013
20130341148SYNCHRONIZER RING - A synchronizer ring (12-26-2013
20150292570TRANSMISSION - If a sleeve of a double cone-type synchronizer is not smoothly engaged with a dog gear because of getting caught by the dog gear, the dog gear, as pressed by the sleeve, may lean with a spline-connecting part of the dog gear to a transmission gear as a fulcrum, so that an inner ring of a blocking ring may be damaged by being squeezed between the dog gear and a hub. However, the transmission gear includes: a tooth surface portion having tooth surfaces formed on one axial end side of the transmission gear; and a contact portion formed on the opposite axial end side, and abutting against the dog gear. The contact portion extends radially outward of a through-hole of the dog gear, thereby preventing the dog gear, as pressed by the sleeve, from leaning toward the transmission gear so as to prevent damage of the inner ring.10-15-2015
20160169298SYNCHRONIZER AND TRANSMISSION06-16-2016
20170234372SYNCHRONIZER DEVICE AND SYNCHRONIZATION METHOD08-17-2017
192530341 With thrust member 9
20080302624Transmission synchromesh and thrust piece of a transmission synchromesh - A transmission synchromesh is provided that includes a pressure element coupled to a synchronizing ring, and one shift sleeve, wherein the pressure element for detent permits an axial position displacement of the shift sleeve relative therewith. A pressure element and a transmission synchromesh method for improved synchronization are also provided.12-11-2008
20090145716DEVICE FOR DOUBLE FRICTION CONE COUPLING FOR GEARBOX - A device for coupling between a gearbox shaft and an idle pinion borne thereby including a hub fixed on the shaft, and a coupling mechanism equalizing by friction speeds of the shaft and the idle pinion and for transforming rotational movement received from the hub into an axial thrust on the idle pinion, so as to transmit themselves by friction the torque between the hub and the idle pinion. The coupling mechanism only includes three rings, an upper ring integral with the hub, a single intermediate ring, and a lower ring integral with the hub.06-11-2009
20100012453SHIFT DEVICE WITH SYNCHRONIZER - A gear has a hub with cut-off portions and outer splines as one unit. Thrust pieces are inserted in the cut-off portions for transmitting thrust between a shift sleeve and a synchronizer ring. The gear has a flange portion formed with supporting holes corresponding to the cut-off portions provided with a force-amplifying surface at synchronized member sides thereof. First end portions of the thrust pieces are inserted in the supporting holes. Second end portions thereof are formed with a side end surface for receiving friction torque from the synchronizer ring and with a pressure-receiving slope for transmitting the friction torque to the force-amplifying slope. The thrust pieces swing around centers in the supporting holes so that the second end portions swing in a rotational direction to contact the pressure-receiving slopes with the force-amplifying slopes to change the friction torque to the thrust acting on the synchronizer ring.01-21-2010
20100025176POWER TRANSMISSION APPARATUS - A power transmission apparatus includes a first power transmitting member, a second power transmitting member, a synchronizer ring, arranged between the first power transmitting member and the second power transmitting member, a sleeve held at the first power transmitting member, a synchronizer key arranged between the first power transmitting member and the sleeve, and a drag restricting member arranged between the first power transmitting member and the sleeve. A synchronizer ring engaging portion is formed at a side of the drag restricting member facing the second power transmitting member so as to protrude in the radially inward direction, and a drag restricting engagement portion is formed at the outer circumferential surface of the synchronizer ring at a side thereof facing the first power transmitting member, the drag restricting engagement portion being engageable with the synchronizer ring engaging portion.02-04-2010
20100263979POWER ASSIST ELEMENT - The invention relates to a power assist element (10-21-2010
20110272234Synchronizing Device for Transmission - A synchronizing device for transmission having a clutch hub disposed to a shaft and a clutch hub groove formed thereto, a sleeve splined and connected to an external side of the clutch hub for being capable of moving along axial direction of the shaft, a blocking key disposed to the clutch hub groove, and a clutch gear disposed coaxial to the shaft, may include a blocker ring disposed to slidably touch a cone portion formed to the clutch gear, wherein a blocking key receiving portion for supporting the blocking key may be formed to the blocker ring.11-10-2011
20110315500Synchronizing Device for Transmission - A synchronizing device for transmission including a clutch hub disposed to a shaft and a plurality of clutch hub groove formed thereto, a sleeve splined and connected to an external side of the clutch hub for being capable of moving along axial direction of the shaft, a blocking key disposed to the clutch hub groove, and a clutch gear disposed coaxial to the shaft may include a blocker ring disposed to touch a cone portion formed to the clutch gear, wherein a blocking key locking portion may be formed to the clutch hub for an upper external circumference of the blocking key to contact thereto, and a receiving portion for supporting the blocking key may be formed to the blocker ring.12-29-2011
20120006643DOUBLE-ACTING SYNCHRONIZER - A double-acting synchronizer includes, but is not limited to a shaft, first and second gearwheels rotatably mounted on said shaft, a sleeve which is axially displaceable along said shaft between a position in which it locks the first gearwheel to the shaft and a position in which it locks the second gearwheel to the shaft. A single conical friction surface is formed between a first baulk ring and the first gearwheel, and multiple nested conical friction surfaces are formed between a second baulk ring and the second gearwheel.01-12-2012
20120279818SYNCHRONIZING DEVICE FOR MANUAL TRANSMISSION - A synchronizing device of a manual transmission may include a clutch hub splined on a rotation shaft, a sleeve engaged to an external circumferential portion of the clutch hub by interposing a blocking key therebetween, the sleeve being movable axially, a clutch gear having a cone portion and disposed at both sides of the sleeve without an interference with the rotation shaft, a blocker ring frictionally engagable to the cone portion of the clutch gear, and a normal gear and a groove gear formed at an interior circumference of the sleeve, wherein a width of a middle portion of the groove gear may be wider than that of the normal gear, and the middle portion of the groove gear has a key supporting portion and a locking groove formed on the key supporting portion and engaged to an exterior circumference of the blocking key.11-08-2012
192530360 Radially movable blocker 4
20160091032A SYNCHRONISING DEVICE - A synchronising device is provided for synchronising a first rotatable part with a second rotatable part adjacent to the first rotatable part. The synchronising device includes a first part provided with an engaging sleeve and a second part provided with a synchroniser ring. The synchronising device has at least one positioning resilient member which is arranged to act upon the synchroniser ring and the second part, in order to allow a design with few parts and also to presynchronise the synchronising ring with the second part. A transmission including such a synchronising device is also provided.03-31-2016
192530361 Detent acts as blocker 2
20150330462SYNCHRONIZING DEVICE - The invention relates to a synchronizing device with a synchronizer body, a sliding sleeve, a gearwheel with coupling toothing and a synchronizer ring which is displaceable between synchronizer body and coupling toothing axially in and counter to the synchronization direction(s). With the specification of being able to position the synchronizer ring reliably in a neutral position, it is proposed that the synchronizer ring is fixed to the synchronizer body in the neutral position by means of a spring device.11-19-2015
192530362 Rocker lever actuates friction clutch 1
20100078283CLUTCH ASSEMBLY - A clutch assembly for connecting a shaft to a rotary member mounted on said shaft in a rotationally fixed manner comprises: a sliding sleeve which is rotationally fixed to the shaft, is axially slidably mounted on said shaft and is provided with a first gearing, A clutch body which is rotationally fixed to the rotary member and provided with a second gearing which can mesh with the first gearing to connect the shaft and the rotary member in a rotationally fixed manner. And, a locking synchronisation unit having a synchroniser ring with a friction surface the ring permitting the speeds of the shaft and the rotary member to be synchronised before the meshing of the first and second gearings. The locking synchronisation unit further comprises a locking member which is coupled to the sliding sleeve by a detent groove and to the synchroniser ring in the rotational direction (D) by a pair of locking surfaces. The pair of locking surfaces are situated between the locking member and a synchroniser member, the latter being coupled to the locking member in the axial direction (A) and to the synchroniser ring in the rotational direction (D).04-01-2010
192530363 Radially movable friction element acts as blocker 1
20100263980ANNULARLY MOUNTED MULTIPLE FRICTION MEMBER SYNCHRONIZING AND ENGAGING CLUTCH - A gear synchronizing system having a component carrier, wherein the component carrier accepts a splined shaft therethrough and interact with the splined shaft to allow transfer of rotation between the splined shaft and the component carrier while also allowing the component carrier to slide axially along the splined shaft relative to an associated friction plate. The component carrier includes a plurality of friction members pivotably coupled within walled recesses of the component carrier, such that when the component carrier is urged toward the associated friction plate, at least a portion of the contact surface of the friction members initially contacts a surface of the friction plate and, as the component carrier continues to be urged toward the associated friction plate, each friction member is rotated, such that at least a portion of the contact surface of each friction member continues to contact a surface of the friction plate.10-21-2010
192530500 Axially projecting positive clutch 1
20130233666SYNCHRONIZATION UNIT FOR A POSITIVE DUAL CLUTCH - A synchronization unit for a positive dual clutch. The synchronization unit has a sleeve carrier that is axially and rotationally fixed to an output shaft and a shifting sleeve that is rotationally fixed and axially displaceable relative to the sleeve carrier. The synchronization rings of a synchronization clutch on the sleeve carrier side and the sleeve carrier comprise axially interlocked circumferential segments.09-12-2013

Patent applications in all subclasses Progressive engagement

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