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公开(公告)号：US12209624B2
公开(公告)日：2025-01-28
申请号：US18330242
申请日：2023-06-06
Applicant: Dana Belgium N.V.
Inventor： Kurt Cattoor , Filip D. Schacht
IPC: F16D47/04 , F16D13/74 , F16D25/0635 , H02K7/108 , H02K7/116
Abstract: Systems and a method for a clutch assembly are provided. In one example, a wet clutch for an electric motor includes a plurality of friction plates connected to a clutch hub; a plurality of separator plates connected to a drum and interleaved with the plurality of friction plates, a gear coupled to the electric motor; and a one-way clutch integrated into the wet clutch so as to be positioned between the gear and the clutch hub to allow free rotation in a predetermined direction while the wet clutch is hydraulically actuated and the friction plates and the separator plates rotate at the same speed thus avoiding drag losses.
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公开(公告)号：US20240253460A1
公开(公告)日：2024-08-01
申请号：US18608702
申请日：2024-03-18
Applicant: Dana Heavy Vehicle Systems Group, LLC
Inventor： Jordan M. HOUSER
IPC: B60K17/35 , B60K23/08 , F16D13/74 , F16D25/0638 , F16D25/10 , F16H48/22 , F16H48/295
CPC classification number: B60K17/35 , B60K23/0808 , F16D13/74 , F16D25/0638 , F16H48/22 , F16H48/295 , F16D25/10
Abstract: A transmission system includes a first friction clutch with a first set of discs splined to a shaft and a second set of discs splined to an inner circumference of a first gear, and a first hydraulic passage extending through the shaft and including an outlet in the shaft. The system further includes a second friction clutch with a third set of discs splined to the shaft and a fourth set of discs splined to an inner circumference of a third gear, and a second hydraulic passage extending through the shaft.
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公开(公告)号：US20240183409A1
公开(公告)日：2024-06-06
申请号：US18552939
申请日：2021-03-30
Applicant: GKN Auotmotive Limited
Inventor： Markus Wiegandt , Eduard Kinzel
Abstract: A clutch assembly comprises at least one controllable friction clutch for variable torque transmission between a clutch input part and a clutch output part; a hydraulic actuator assembly for actuating the friction clutch, the actuator assembly comprising a hydraulic pump, a hydraulic chamber in which hydraulic pressure for the friction clutch is built up by the hydraulic pump and a return flow element with an orifice, via which hydraulic fluid can flow out of the hydraulic chamber into a housing reservoir when the hydraulic pump is not actuated, wherein the hydraulic fluid defines a filling level in the housing reservoir; wherein an outlet opening of the return flow element lies below the filling level of the hydraulic fluid in a inactive state.
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公开(公告)号：US11964557B2
公开(公告)日：2024-04-23
申请号：US17806239
申请日：2022-06-09
Applicant: Dana Heavy Vehicle Systems Group, LLC
Inventor： Jordan M. Houser
IPC: B60K17/35 , B60K23/08 , F16D13/74 , F16D25/0638 , F16D25/10 , F16H48/22 , F16H48/295
CPC classification number: B60K17/35 , B60K23/0808 , F16D13/74 , F16D25/0638 , F16H48/22 , F16H48/295 , F16D25/10
Abstract: A transmission system and a method for operation of said transmission is provided. The transmission system includes a first friction clutch with a first set of discs splined to a shaft and a second set of discs splined to an inner circumference of a first gear. The system further includes a first hydraulic passage extending through the shaft and including an outlet in the shaft that directly supplies a lubricant to the first and second sets of discs during transmission system operation, where the first gear includes outer teeth that are positioned circumferentially around the first gear outward from the first and second sets of discs and is designed to mesh with a second gear in the transmission system.
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公开(公告)号：US11940013B1
公开(公告)日：2024-03-26
申请号：US18367012
申请日：2023-09-12
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Makoto Kambara , Jun Komukai
CPC classification number: F16D13/56 , F16D13/71 , F16D13/74 , F16D2013/565 , F16D2300/06
Abstract: A clutch device includes a clutch center, and a pressure plate movable toward or away from the clutch center, rotatable relative to the clutch center, and operable to press input-side rotating plates and output-side rotating plates. The pressure plate holds the output-side rotating plates and includes pressure-side fitting teeth projecting radially outward from an outer peripheral surface of an outer peripheral wall and arranged in circumferential directions, and an oil channel in an end portion of at least one of the pressure-side fitting teeth in a first direction. The oil channel allows clutch oil flowing at least at an inner peripheral surface of the outer peripheral wall to be discharged to the outside of the pressure plate.
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Patent Agency Ranking
公开(公告)号：US20240077116A1
公开(公告)日：2024-03-07
申请号：US18242163
申请日：2023-09-05
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Yuki KOBAYASHI , Takayuki SUZUKI
CPC classification number: F16D13/70 , F16D13/52 , F16D13/74 , F16D23/12 , F16D2023/123
Abstract: A clutch device includes a pressure plate movable toward or away from a clutch center, rotatable relative to the clutch center, and operable to press input-side rotating plates and output-side rotating plates. The clutch center includes an oil passage, at least a portion of which is located in an inner peripheral surface of an outer peripheral wall to guide clutch oil to a center-side fitting portion. The pressure plate includes a pressure-side recess on an outer peripheral surface of a pressure-side fitting portion, recessed radially inward from the outer peripheral surface over the entire outer peripheral surface in movement directions, and continuous with the pressure-side cam hole when seen in movement directions. The pressure-side recess communicates with the oil passage.
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公开(公告)号：US20230417293A1
公开(公告)日：2023-12-28
申请号：US18037835
申请日：2021-10-25
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Christian Denda , Stefan Steinmetz , Florian Krebs , Jens Kramer , Laurent Ineichen , Tobias Hebgen
CPC classification number: F16D13/648 , F16D13/72 , F16D13/74 , F16D13/52 , F16D69/00 , F16D2069/004
Abstract: A wet multi-plate clutch includes a plate carrier with a pair of fluid passage openings and a friction plate rotationally fixed and axially displaceable relative to the plate carrier. The friction plate has a carrier element and a pair friction pads fastened to the carrier element and delimiting a groove. The groove includes a groove geometrical center line. The groove geometrical center line may extend radially through a one of the pair of fluid passage openings, or it may extend radially between the pair of fluid passage openings. If the groove geometrical center line extend radially between the pair of fluid passage openings, one of the pair of friction pads may include a pad geometrical center line extending along a radial extent through a one of the pair of fluid passage openings.
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公开(公告)号：US11841053B1
公开(公告)日：2023-12-12
申请号：US18217679
申请日：2023-07-03
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Shinji Furuhashi , Jun Komukai , Makoto Kambara , Satoshi Ota
CPC classification number: F16D23/12 , F16D13/52 , F16D13/70 , F16D13/74 , F16D2023/123
Abstract: Pressure-side cam portions of a pressure plate each include a pressure-side assist cam portion including a pressure-side assist cam surface, a pressure-side body located between the pressure-side assist cam portion and a pressure-side slipper cam portion, and a first stepped portion between a main outer circumferential surface of the pressure-side body and a sub outer circumferential surface of the pressure-side assist cam portion. The sub outer circumferential surface is located radially inward of the main outer circumferential surface. The sub outer circumferential surface is inclined radially inward in a second direction. Among portions of the main outer circumferential surface, at least a stepped portion-side outer circumferential surface adjacent to the first stepped portion is inclined radially outward in the second direction.
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9.发明公开公开(公告)号：US20230213078A1
公开(公告)日：2023-07-06
申请号：US17567394
申请日：2022-01-03
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Kayla Covington , Rashid Farahati , Murat Bakan , Michael Yanetta
CPC classification number: F16D69/026 , F16D13/72 , F16D13/74 , F16D2200/006
Abstract: A clutch assembly for a motor vehicle drivetrain includes a rigid support and a wet friction material fixed to a surface of the rigid support. The wet friction material includes a base material including a matrix of fibers and filler particles embedded in the matrix of fibers. The filler particles include calcined kaolin clay, and the base material includes, by percent weight, 5 to 60% of calcined kaolin clay. The wet friction material also includes a binder embedded in the base material. The binder is tung modified phenolic resin.
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公开(公告)号：US20230151854A1
公开(公告)日：2023-05-18
申请号：US18155602
申请日：2023-01-17
Applicant: DANA ITALIA S.R.L.
Inventor： Mario GELMINI , Giovanni PROFUMO
CPC classification number: F16D25/123 , F16D13/74 , F16D25/14 , F16D13/52
Abstract: Methods and systems for a transmission are provided herein. In one example, a hydraulic system includes a lubrication valve included in a lubricant line and designed to adjust a flow of lubricant to a multi-disc wet clutch. The hydraulic system further includes a clutch line coupled to a clutch control valve, where the clutch line is in fluidic communication with a hydraulic fluid to a clutch actuator of the multi-disc wet clutch and a passive adjustment device of the lubrication valve and where the passive adjustment device transitions the lubrication valve between a limited flow state and an open flow state based on a pressure of the hydraulic fluid in the clutch line.
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