Patents Assigned to Schaeffler Technologies GmbH & Co. KG
  • Publication number: 20140334758
    Abstract: A rolling bearing assembly with electrical discharge damage protection is provided. The rolling bearing assembly includes radially inner and outer bearing rings that each have a race. A roller assembly including a plurality of rolling elements that are supported to roll on the races is provided. A shield extends radially between the radially outer ring and the radially inner ring. The shield includes a body portion with one radial end that is fixed to one of the radially inner or outer rings, at least one electrically conductive seal on a surface of the body portion, and a plurality of filaments extending on an opposite radial end of the body portion from the fixed radial end that contacts the other of the radially inner or outer rings.
    Type: Application
    Filed: March 25, 2014
    Publication date: November 13, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Michael WHITE
  • Publication number: 20140335992
    Abstract: A rotary power transfer disconnect device for use between first and second drive parts, with the first having an opening with teeth defined therein, and the second having external teeth located at least partially in the opening. A gap is located between the teeth so that the first drive part is rotatable relative to the second drive part. A sliding dog clutch having a spline sleeve with internal projections located on an inner periphery thereof that are engagable with the teeth on the outer periphery of the second drive part and external projections located on an outer periphery thereof that are engagable with the teeth on the inner periphery of the opening of the first drive part is slidable into the gap for driving engagement between the teeth and out of the gap to allow relative rotation between the first and second parts.
    Type: Application
    Filed: April 23, 2014
    Publication date: November 13, 2014
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Brian Lee, Carsten Ohr
  • Publication number: 20140332335
    Abstract: A bi-directional wedge clutch, including: an outer race; first and second inner hubs; a wedge plate, radially located between the outer race and the inner hubs; and an axially displaceable activation hub engaged with the inner hubs and arranged to: for a free-wheel mode, rotate at least one of the inner hubs in a first rotational direction, with respect to the other of the inner hubs, such that the wedge plate is free of contact with the outer race; and for a locking mode, rotate the at least one of the inner hubs in a second rotational direction, opposite the first rotational direction, with respect to the other of the inner hubs, to non-rotatably connect the wedge plate with the outer race and the inner hubs.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 13, 2014
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventor: Scott Strong
  • Publication number: 20140331950
    Abstract: A switching roller finger follower, including: a housing with a first wall with a first opening, a second wall with a second opening, and an interior space at least partially formed by the walls; first and second outer arms; and a locking pin disposed in the openings and including a longitudinal axis, a body, and first and second protrusions extending radially outward from the body, formed of a same piece of material as the body, and at least one of which is located within the space. A respective portion of at least one of the first or second protrusions is aligned with the first or second wall in a direction parallel to the first longitudinal axis. The locking pin is displaceable such that: in a locked mode, the locking pin blocks pivoting of the arms; and in an unlocked mode, the locking pin is free of contact with the arms.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 13, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Debora Manther, Rainer Pfeufer, Matthias Kapp
  • Publication number: 20140334949
    Abstract: A regulatable coolant pump of an internal combustion engine having a pump housing in which a pump shaft with an associated impeller is rotatably mounted. The impeller conveys a coolant from an inlet connection into an outlet of the coolant pump, a volume flow of the coolant pump being adjustable by a cover that externally surrounds the impeller at least in some regions and is displaceable by a pressure medium. The cover is moved by an actuator including a solenoid in contact with a piston that is moveable into a piston pressure chamber in order to generate high pressure pulses of a pressure medium that are transmitted to a plunger chamber where they act on a plunger connected to the cover. Upon actuation of the solenoid, the cover is moved by the pressure medium acting on the plunger to an actuated end position.
    Type: Application
    Filed: April 24, 2014
    Publication date: November 13, 2014
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Alexander Joseph Morein, Sebastian Hurst
  • Patent number: 8881515
    Abstract: A damper assembly for a torque converter includes a drive side elastic element arranged for transmitting torque to a turbine for the torque converter in a first direction and a coast side elastic element, separate from the drive side elastic element, arranged for transmitting torque to the turbine in a second direction opposite the first direction. In an example embodiment, a slope of a torque curve for the damper remains constant in a transition region between transmitting torque to the turbine in the first direction and transmitting torque to the turbine in the second direction. In an example embodiment, the damper assembly includes an input damper and an output damper. The elastic elements are disposed in a torque path between the input damper and the output damper. In an example embodiment, the input damper is selectively engaged with a cover for the torque converter and the output damper is drivingly engaged with an output hub for the torque converter.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: November 11, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Patrick Lindemann, Brian Zaugg, Chad Mieczkowski
  • Patent number: 8881705
    Abstract: A mass-balancing transmission of an internal combustion engine (1) is provided, having a transmission housing (8) and a balancing shaft (6) with a bearing point (10, 11) at which the balancing shaft is mounted radially in a bearing seat (12, 13) of the balancing housing, and having an unbalanced section (9) which is formed in one part with the bearing point of the originally shaped balancing shaft. The bearing point is set back radially compared to the unbalanced section with the result that the diameter relationship: d2>d1 applies for the external envelope circle d1 of the bearing point and the external envelope circle d2 of the unbalanced section. Considered in the axial direction of the balancing shaft, the external envelope circle d2 of the unbalance section and the external envelope circle d1 of the bearing point extend offset to one another with an eccentricity of e.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: November 11, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventor: Siegfried Tisch
  • Patent number: 8882468
    Abstract: A blade family for torque converters with a first blade having a first shape and flow guiding surface and a second blade having a second shape and flow guiding surface. The first surface is different from the second surface and the first shape is the same as a portion of the second shape, or the second shape is the same as a portion of the second shape. In an example embodiment of the invention, at least one of the first or second blades includes holes or slots. In an example embodiment of the invention, the first blade includes more material than the second blade. The first and second blades may have respective mounting tabs, with the second blade having fewer mounting tabs than the first blade. Other example aspects of the present invention broadly comprise a torque converter with a plurality of first and/or second blades from the blade family.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: November 11, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Michael Resh, Bhaskar Marathe, Cem Ersahin, Randy Keller
  • Patent number: 8881700
    Abstract: A camshaft adjustment device (1) for an internal combustion engine of a motor vehicle, with a drive part (3), such as an outer stator, and a driven part (4), such as an inner rotor. The driven part is supported so that it can rotate relative to the drive part between a first angular position and a second angular position. A separate insert part (2) originating from the drive part or the driven part is further arranged in a rotational angle limiting connecting link (5) that is formed in the drive part or the driven part, the insert part is arranged so that it can be brought into blocking contact with two blocking elements (8), such as pins or pegs, that can move in the axial direction. A control drive with such a camshaft adjustment device and an internal combustion engine with such a control drive are also provided.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 11, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Holger Brenner, Jurgen Weber
  • Publication number: 20140326573
    Abstract: A friction plate for a clutch is provided. The friction plate includes a first core plate including at least one first radial extension, a second core plate including at least one second radial extension and friction material held axially between the at least one first radial extension and the at least one second radial extension. The at least one first radial extension and the at least one second radial extension are imbedded axially into opposite sides of the friction material and joined together. A method of forming a friction plate for a clutch is also provided.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 6, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Chris Luipold, Scott Strong
  • Publication number: 20140326566
    Abstract: A one-way clutch, including: a housing including a top side and a plurality of indentations in the housing, each indentation including: a respective opening in a portion of the top side; a respective bottom wall opposite the respective opening in an axial direction parallel to an axis of rotation for the one-way clutch; and a respective side wall. The respective side wall: connects the respective opening and the respective bottom wall and tapers inward from the respective opening to the respective bottom wall. The clutch includes a plurality of struts, each strut including a first segment disposed in a respective indentation and including a respective side surface substantially parallel to the respective side wall. Each strut is pivotable in the respective indentation to enable rotation of the housing in a first rotational direction and to block rotation of the housing in a second rotational direction, opposite the first rotational direction.
    Type: Application
    Filed: April 23, 2014
    Publication date: November 6, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Patrick M. Lindemann, Markus Steinberger, Jacob Rufener
  • Publication number: 20140326572
    Abstract: A friction clutch including an input side and an output side arranged to rotate, a fluid chamber fillable with a cooling liquid including a first friction partner, a second friction partner, an inner disc carrier coupled to one of the two friction partners radially on the outside, and a compression device having a pressure chamber fillable with a pressure fluid to provide axial compression of the friction partners to generate a torque-locking engagement between the input side and the output side. A deflection device is provided in the fluid chamber wherein the inner disc carrier includes at least one first passage for the cooling liquid to pass through, and the deflection device feeds back at least a first portion of the cooling liquid flowing in a radially outward direction between the friction partners into a radially inward direction to the first passage of the inner disc carrier.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 6, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Michael Kuehnle, Toros Guellueck
  • Publication number: 20140329641
    Abstract: A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 6, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Alain Rusch, Steffen Lehmann, Friedrich Gerhardt
  • Patent number: 8880359
    Abstract: A transmission sensing and measurement system. The system provides real-time feedback of various transmission operating characteristics which enables immediate synchronized shift calibration in response to vehicle operating conditions. The system can be applied to various transmission components and positions, such as bearing, shafts, and differentials. The system is arranged in a transmission assembly. By way of a method for measuring operating characteristics of the transmission where data is collected by a sensor and transmitted, optimal operating characteristics of the transmission can be calculated.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: November 4, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Marion Jack Ince, Charles Schwab, Jens Heim
  • Patent number: 8875676
    Abstract: A roller tappet (1) is proposed for a high-pressure fuel pump of an internal combustion engine, having a housing (2), in the case of the drive-side end (3) of which two surfaces (5) which lie diametrically opposite one another and are depressed by an outer shell (4) of the housing (2) are applied with in each case one receptacle (6), in which surfaces (5) a pin (8) is mounted which carries a cam roller (7), wherein an inner shell (9) of the housing (2), axially below the cam roller (7) as viewed in the direction remote from the drive, is penetrated by a bridge piece (10), the output-side end (11) of which has a rest (12) for a tappet following part, wherein the outer shell (4) of the housing (2) which is non-stepped as least as far as possible apart from the surfaces (5) is provided as a closed circumferential ring (14), as viewed in the drive direction immediately above upper sides (13) of the surfaces (5), which upper sides (13) run through the housing (2) in the manner of chords, which closed circumferenti
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 4, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Norbert Geyer, Stefan Dorn
  • Publication number: 20140318914
    Abstract: A drive assembly for a torque converter is provided. The drive assembly includes a spring retainer. The spring retainer includes at least one rounded portion contoured to wrap around an outer circumferential surface of at least one spring and an axial extension joined to the rounded portion. The axial extension extends axially away from rounded portion and includes a connecting portion for engaging a clutch plate. A torque converter and a method of forming a drive assembly for a torque converter are also provided.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 30, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventor: Brian Zaugg
  • Publication number: 20140321784
    Abstract: A wheel bearing arrangement having an outer ring (12), an inner ring (13), and a seal arranged between the outer ring (12) and the inner ring (13) for the purpose of sealing off a rolling chamber, wherein, in the rolling chamber, rolling bodies (10) roll in a load-bearing manner on raceways of the outer ring (12) and of the inner ring (13), wherein the cover element (32) has a fastening region (28) for the fastening of the cover element (32) radially at the outside to the outer ring (12). It is sought to further improve the encoder protection in a wheel bearing arrangement of said type by virtue of the cover element (32) having a collecting channel (27) which surrounds a joint bell housing (19) and thereby protecting the encoder (14) of the wheel bearing arrangement against fouling.
    Type: Application
    Filed: March 23, 2012
    Publication date: October 30, 2014
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Peter Niebling, Roland Langer
  • Publication number: 20140321787
    Abstract: A ball bearing cage having a first ring element (R1) which is designed as a formed sheet metal part and which has axial bulges arranged sequentially in a circumferential direction and separated by support surfaces (S2), having a second ring element (R2) which is also designed as a formed sheet metal part and which also has axial bulges arranged sequentially in a circumferential direction and separated by support surfaces (S2), and having ball guide pockets (P2) which are formed between facing bulging inner walls (W1, W2) by joining the support surfaces (S2) of the two ring elements (R1, R2), and each of which accommodates a ball (3).
    Type: Application
    Filed: December 12, 2012
    Publication date: October 30, 2014
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Alexander Reimchen, Andreas-Johann Bohr, Stephan Herbst
  • Patent number: 8870701
    Abstract: A double differential device for a vehicle which is of compact construction. The device has a longitudinal differential section with a longitudinal differential input, a longitudinal differential output, an axle output. It also has a transverse differential section with a transverse differential input and two driven outputs. The longitudinal differential output is connected with the transverse differential input, the longitudinal differential section and the transverse differential section are each a planetary spur wheel gear and are arranged coaxially with a common main axis of rotation. The longitudinal differential section has a longitudinal differential planet carrier, which carries a longitudinal differential planet set, and the transverse differential section has a transverse differential planet carrier, which carries a first and a second transverse differential planet set.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: October 28, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Thorsten Biermann, Harald Martini, Richard Grabenbauer
  • Patent number: 8869761
    Abstract: A camshaft adjuster (2) having a vane-type design with a stator (4) and a rotor (6), which can be rotated relative to the stator (4), and at least two pressure chambers (8a, 8b) formed between the stator (4) and the rotor (6). The pressure chambers (8a, 8b) are separated from each other by a radially oriented vane (12) of the rotor (6), wherein the pressure chambers (8a, 8b) can be alternately supplied with a pressure medium. The vane (12) has a radial face (20) and two lateral faces (20) that are directed toward the pressure chambers (8a, 8b). The radial face (20) is sealed by a U-shaped sealing element (26) having a main limb (30) and two side limbs (32) seated against the lateral faces (22). The pressure chambers (8a, 8b) of the camshaft adjuster (2) are sealed particularly reliably by designing check valves (28) on the side limbs (32) of the sealing element (26) and by designing, on the lateral faces (22) of the vane (12), outlets for the pressure medium with which the check valves (28) are associated.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: October 28, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Michael Busse, Stefan Schelter