Multiple Disks Patents (Class 74/445)
  • Patent number: 10865867
    Abstract: A torque transmitting gear includes a steel toothed annular flange having gear teeth defined on a periphery of the steel toothed annular flange. A steel hub is coaxially aligned with the steel toothed annular flange. A web is formed from a web material having a density less than or equal to 3.0 grams per cubic centimeter. The web is fixedly attached to the toothed annular flange and to the hub for rotation together with the toothed annular flange and the hub. The gear is to operatively transmit a torque of at least 500 Newton Meters for at least 6 million revolutions of the gear. An overall mass of the gear is less than two-thirds of an overall mass of a same-sized all steel gear having a solid steel web with a solid steel web thickness at least one-third of a face width of the toothed annular flange.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: December 15, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Anuj Anand, Hari Prasad Konka, Peter James Fritz
  • Patent number: 10619717
    Abstract: A hybrid composite reinforced ring gear minimizing radial deformation during high RPM conditions includes a composite backing secured to a metal rim. In use, at operating temperature the composite backing contracts while the metal rim expands thus creating a compressive stress on the metal rim and significantly reduces radial deformation due to centrifugal forces as compared to an all steel ring gear.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 14, 2020
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Brian Stanley Modrzejewski, Siddhesh Pradeep Raje, Gilberto Morales, Kenneth Myron Jackson
  • Patent number: 10371243
    Abstract: According to one embodiment, a gear includes a steel portion that is oriented on a center axis. The steel portion includes a hub, a cylindrical rim, a web, and a plurality of engagement features. The hub is centered about the center axis. The rim has an exterior surface and an interior surface that surrounds the hub and is centered about the center axis. The web extends from an exterior surface of the hub to the interior surface of the rim. The engagement features are on the exterior surface of the cylindrical rim. The gear also includes a first composite piece adjacent to a first side of the web, the first composite piece extending from the hub to the interior surface of the rim, wherein the first composite piece does not extend past the hub towards the center axis.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 6, 2019
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Brian Modrzejewski, Doug Mueller, Brad Ekstrom, Robert P. Wardlaw
  • Patent number: 9816583
    Abstract: The flywheel energy storage device (3) comprises a rotor (2) with at least two hubs (11, 12) and a drive (33) for the rotor (2), whereby the rotary element (23) is mounted at least via the first hub (11) with the first journal (21) in a first bearing (31) of the flywheel energy storage device (3), and at least via the second hub (12) with the second journal (22) in a second bearing (32) of the flywheel energy storage device (3), and the rotor (2) can be made to rotate by means of the drive (33) via the first and/or second journals (21, 22), whereby the journals (21, 22) in the rotor (2) are connected to each other exclusively via the hubs (11, 12) and via the rotary element (23).
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: November 14, 2017
    Assignee: Enrichment Technology Deutschland GmbH
    Inventor: Thomas Bäumer
  • Patent number: 9618108
    Abstract: A quiet-running, multi-layer gear assembly includes a compliant center member sandwiched between a pair of stiff outer members. The compliant center member has an outer peripheral surface with gear teeth. Each of the outer members has an outer peripheral surface with gear teeth disposed in a respective directed axial thrust pattern. The center and outer members are joined on a central hub with their outer peripheral surfaces aligned so as to form a gear assembly with low or no net axial thrust. In some aspects, the compliant center member and the hub include cooperating anti-turn constructions.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: April 11, 2017
    Assignee: ACHATES POWER, INC.
    Inventors: Balazs V. Palfai, Michael S. Tebbe
  • Patent number: 9296157
    Abstract: A hybrid gear consisting of metallic outer rim with gear teeth and metallic hub in combination with a composite lay up between the shaft interface (hub) and gear tooth rim is described. The composite lay-up lightens the gear member while having similar torque carrying capability and it attenuates the impact loading driven noise/vibration that is typical in gear systems. The gear has the same operational capability with respect to shaft speed, torque, and temperature as an all-metallic gear as used in aerospace gear design.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: March 29, 2016
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Robert F Handschuh, Gary D Roberts
  • Patent number: 9279491
    Abstract: Gear-shaped resin sheets Sa are laminated such that tooth portions 2b are aligned in an axial direction, thereby preparing a spur gear-shaped net-shape body 4. Tooth portions of the resin gear formed in a lower die 12 are pressed in a helical tooth-shaped molding space to deform the tooth portions 4a of the net-shape body 4 into a helical tooth tilted relative to the axial direction, and the direction of reinforcement fibers at the tooth portions 2b of the molded resin gear 1 is tilted relative to the axial direction.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: March 8, 2016
    Assignee: NIPPON GASKET CO., LTD.
    Inventors: Shizuo Itani, Shigeo Shinozaki
  • Patent number: 9145932
    Abstract: A ratchet wheel for a tightener in the field of mechanics, which addresses the problems existing in conventional tighteners where the ratchet wheel tends to be shifted to offset or dislocate the reel. The ratchet wheel for the tightener includes a wheel body which is of a round-disk shape and has several ratchets along the edge thereof. Axial holes are set at the wheel body to pass the reel. Connecting parts are disposed at the ends of the axial holes to protrude vertically from the end face of the ratchet wheel. The connecting parts could be embedded onto the handle or support of the tightener. The ratchet wheel for the tightener is equipped with the advantages such as firm connection and high reliability.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: September 29, 2015
    Assignee: Zhejiang Topsun Logistic Control Co., Ltd.
    Inventor: Zhaoyin Xiao
  • Publication number: 20150122066
    Abstract: Embodiments include a modular flex plate assembly with a plurality of modular segments connectable with at least another modular segment by joining a first end of one modular segment to a second end of another modular segment to form a ring gear. The ring gear can be mounted to a substrate and mounted or fastened to a component of an engine or a transmission system. A plurality of securing devices can cooperatively engage the ring gear to a substrate, such that the gear teeth of the ring gear align with the perimeter edge of the substrate.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 7, 2015
    Inventor: Ross Alan McCombs
  • Publication number: 20150047450
    Abstract: A variety of scissors gear assemblies are disclosed that utilize integral parts or common tools to align teeth of the scissors gear assembly. Methods of use are also disclosed.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: Cummins Inc.
    Inventors: Gregory J. Mitchum, Benjamin D. Snider, Philip W. Burbrink, John G. Allman
  • Publication number: 20150020627
    Abstract: A quiet-running, multi-layer gear assembly includes a compliant center member sandwiched between a pair of stiff outer members. The compliant center member has an outer peripheral surface with gear teeth. Each of the outer members has an outer peripheral surface with gear teeth disposed in a respective directed axial thrust pattern. The center and outer members are joined on a central hub with their outer peripheral surfaces aligned so as to form a gear assembly with low or no net axial thrust. In some aspects, the compliant center member and the hub include cooperating anti-turn constructions.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Inventors: Balazs V. Palfai, Michael S. Tebbe
  • Publication number: 20150020629
    Abstract: A quiet-running, multi-layer gear assembly includes a stiff center member sandwiched between a pair of outer members. At least one of the outer members is compliant; preferably, both are. The stiff center member has an outer peripheral surface with gear teeth. Each of the outer members has an outer peripheral surface with gear teeth disposed in a respective directed axial thrust pattern. The center and outer members are joined on a central hub with their outer peripheral surfaces aligned so as to form a gear assembly.
    Type: Application
    Filed: November 7, 2013
    Publication date: January 22, 2015
    Applicant: Achates Power, Inc.
    Inventors: John J. Koszewnik, Balazs V. Palfai
  • Publication number: 20140360300
    Abstract: The invention relates to a gear arrangement (1) having a split spur gear toothing, comprising a main gear (2) and a gear (4) rotatable relative to it in the circumferential direction (3), and the main gear (2) has a hub (5) on which the rotatable gear (4) is mounted, and having a spring element (9) which is disposed between the main gear (2) and the rotatable gear (4) and by means of which the rotatable gear (4) is biased in the circumferential direction (3) towards the main gear (2), and a first spur gear toothing part (14) is provided on the main gear (2) and a second spur gear toothing part (15) is provided on the rotatable gear (4). The rotatable gear (4) is guided by means of at least one at least approximately annular guide web (16) in the region of the spur gear toothing.
    Type: Application
    Filed: March 28, 2014
    Publication date: December 11, 2014
    Applicant: Miba Sinter Austria GmbH
    Inventors: Martin VIECHTBAUER, Peter STOETTINGER, Karl DICKINGER
  • Publication number: 20140352473
    Abstract: A gearwheel arrangement that has a main gearwheel that has a hub is provided. The arrangement has a secondary gearwheel that has a receiving hole that receives the hub and is rotatable in a circumferential direction in relation to the main gearwheel. When the arrangement is in a mounting position the secondary gearwheel is secured in an axial direction. The arrangement may include a spring element that pretensions the secondary gearwheel in the circumferential direction. The spring element is completely enclosed within the gearwheel arrangement.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 4, 2014
    Inventors: Walter Blaes, Christoph Schreieck, Herbert Soika
  • Publication number: 20140298941
    Abstract: A herringbone gear assembly, includes: a first gear segment having a first set of teeth; a second gear segment having a second set of teeth, wherein the second set of teeth have a different configuration than the first set of teeth; and a series of compatible locators on the first and second gear segments configured to assist with gear segment alignment.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 9, 2014
    Applicant: Ford Global Technologies LLC
    Inventor: Michael Tekletsion Berhan
  • Publication number: 20140224053
    Abstract: The invention relates to a gearwheel arrangement (1) with a main gearwheel (2) and a gearwheel (4) rotatable relative to the latter in circumferential direction (3), wherein the main gearwheel (2) comprises a hub (5) on which the rotatable gearwheel (4) is arranged, and with a spring element (7), which is arranged between the main gearwheel (2) and the rotatable gearwheel (4), and by means of which the rotatable gearwheel (4) is pretensioned in circumferential direction (3) against the main gearwheel (2), wherein the main gearwheel (2) comprises at least one first support element (22) and the rotatable gearwheel (4) comprises at least one second support element (23), and wherein the spring element (7) is arranged between the first and the second support element (22, 23) and thereby spaced apart from the first surface (19) of the main gearwheel (2) and from the second surface (21) of the rotatable gearwheel (4).
    Type: Application
    Filed: February 7, 2014
    Publication date: August 14, 2014
    Applicant: MIBA SINTER AUSTRIA GMBH
    Inventors: Helmut BUCHLEITNER, Karl DICKINGER, Christian DUMANSKI
  • Publication number: 20130213168
    Abstract: The invention relates to a toothed wheel arrangement (1) comprising a main toothed wheel (2) and a toothed wheel (4) that can be rotated relative thereto in the circumferential direction (3), wherein the main toothed wheel (2) comprises a toothed wheel body (25) on which a hub (5) is arranged in a projecting manner in the axial direction so as, firstly, to accommodate a shaft and, secondly, to arrange the rotatable toothed wheel (4) thereon, for which purpose the rotatable toothed wheel (4) has a cutout (17) coaxial to an axially extending center axis of the main toothed wheel (2), and wherein the main toothed wheel (2) is connected to the rotatable toothed wheel (4) by means of a bayonet fastening (14). The bayonet fastening (14) is formed between the hub (5) and the rotatable toothed wheel (2) and/or between the hub (5) and a spring element (9) bearing on the rotatable toothed wheel (4).
    Type: Application
    Filed: September 27, 2011
    Publication date: August 22, 2013
    Applicant: MIBA SINTER AUSTRIA GMBH
    Inventors: Helmut Buchleitner, Karl Dickinger, Alexander Mueller, Wolfgang Siessl
  • Publication number: 20130145878
    Abstract: Disclosed is a scissors gear structure and a method of manufacturing the same, wherein the scissors gear can efficiently remove backlash and prevent noise and vibrations, and wherein the scissors gear has improved mechanical properties including strength and wear resistance. The present invention provides a scissors gear without requiring separate manufacturing of expensive scissors pins which must be forcibly inserted, and without requiring expensive processing such as fine wire cutting to form grooves at both ends of the scissors spring.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 13, 2013
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventors: Shin Gyu Kim, Ki Bum Kim, Jae Kyu Lee, Tae Hoon Roh, Ki Jung Kim
  • Patent number: 8388317
    Abstract: There is provided a direct crankshaft of an air compressor for producing compressed air in which a crankshaft is implemented by two crank plates integrally overlapped with each other so that compression cylinders can be arranged in the radial direction to exhibit an excellent air cooling performance, top dead centers and bottom dead centers of the compression cylinders are symmetrically arranged so that the cancellation between pressurizing and vacuuming phenomena and the running of a motor can be smoothly performed, and the motor is integrated with a compression pump so that various driving components such as belts, pulleys, covers, and the like are eliminated and manufacturing costs are remarkably reduced. The direct crankshaft includes crank plates integrated with each other to form an overlapping unit. The overlapping unit has a shaft coupling hole through which a motor shaft penetrates such that the direct crankshaft is directly coupled with a motor.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 5, 2013
    Assignee: Kohands Co., Ltd.
    Inventor: Joo-Hwan Sung
  • Patent number: 8104370
    Abstract: A carrier plate and related method for an automatic transmission is provided, whereby the carrier plate has a ring gear (1) connected to a driving plate (2) by means of welding and has at least one thickening plate (4, 5) connected to the driving plate (2) by means of welding. Preferably the ring gear (1) is connected to the driving plate (2) means of beam welding using auxiliary material.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: January 31, 2012
    Assignee: Johann Hay GmbH & Co. KG Automobiltecnik
    Inventor: Tobias Wesnigk
  • Patent number: 7793753
    Abstract: In a power-assisted steering system or power steering system having an electric motor, which drives a worm gear mechanism that has a composite gear wheel in the form of a worm wheel, the worm wheel includes a ring gear connectible to a hub via a first disk, and an annular projection of the first disk axially engages with the ring gear. In order to improve the centering of the component parts of the composite gear wheel in the tangential direction, and in order to render the power transmission in the gear wheel uniform, the annular projection on the first disk is provided with one or more depressions in the axial direction to form tooth-like projections, which form a drive-type toothed section and engage with depressions on an axial side face of the ring gear.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: September 14, 2010
    Assignee: ZF Lenksysteme GmbH
    Inventors: Werner Bernhard, Oliver Hetzel, Joachim Fischer, Olaf Beutler, Achim Ottenstein, Richard Kaisser, Reinhold Schuster, Wolf-Ingo Ratzel
  • Patent number: 7726449
    Abstract: An airtight damper, an input axis, and a flywheel are mounted to the input axis with a bolt. A torque transmitter, a torque transmitter attachment unit of the flywheel, and a support plate are united with each other using a bolt. The torque transmitter includes a spline unit. A pressure plate engaged with the spline unit is pressed by a pressure spring so as to press a friction plate and a torque transmitter plate against the support plate. Since the torque transmitter plate is fixed to a drive plate by a rivet, the torque from the input axis can be transmitted to the drive plate. Although the torque from the engine is larger than an allowable value, a friction member can slip at a constant torque depending on the pressure of the pressure spring, thereby protecting the damper against an excess load.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 1, 2010
    Assignee: NSK-Warner K.K.
    Inventors: Hiroshi Yabe, Dai Okamura
  • Patent number: 7677131
    Abstract: A steering-wheel arrangement is disclosed which comprises a steering-wheel having a first gear element. A second gear element is provided which is mounted on a steering column. The first and second gear elements inter-engage one another and the arrangement is further provided with an anti-backlash gear which is mounted on one of the gear elements. The anti-backlash gear has teeth configures to as to align substantially with the teeth of the gear element upon which it is mounted, and the anti-backlash gear is biased relative to the gear element upon which it is mounted towards a position in which the teeth of the anti-backlash gear become displaced from the corresponding teeth of the gear element. This gear arrangement has been found to provide improved “feel” for a person driving a motor vehicle.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: March 16, 2010
    Assignee: Autoliv Development AB
    Inventors: Etienne Chapelain, Laurent Groleau
  • Publication number: 20040103737
    Abstract: Apparatus and method for reducing backlash in a gear wheel (10) including at least two interacting gear rims (11, 12) that can rotate in relation to one another. At least one adjusting means (15) is located between the gear rims for adjusting the relative angle of rotation of the gear rims about a common axis of rotation. The adjusting means (15) includes an hydraulic cylinder which is connected to a pressure medium source and is arranged so as to act between two gear rims (11, 12). In this connection, a force arises, which tends to displace one gear rim in relation to the other about the axis of rotation.
    Type: Application
    Filed: August 15, 2003
    Publication date: June 3, 2004
    Applicant: Volvo Lastvagnar AB
    Inventors: Kenneth ASK, Elise Nielsen Hojkrogh, Nils-Olof Hakansson
  • Publication number: 20040069086
    Abstract: To render a gear arrangement for a transmission as quiet as possible but nevertheless able to handle heavy loads, a first gear (1) made of a first material and a second gear (2) made of a second material sit loosely next to one another on a common shaft (4). The elasticity of the first gear (1), preferably made of plastic, is chosen to be greater than that of the second gear (2), preferably made of metal, while the strength of the second gear (2) is chosen to be greater than that of the first gear (1). Because the second gear (2) preferably exhibits a slightly smaller toothing than the first gear (1), only the first gear (1), while having the same modulus, comes into engagement with another gear in normal operation. As the load increases, the first gear (1) made of plastic yields in the elastic range so that now the second gear (2) made of metal also comes into engagement in order to accept the forces occurring and thereby protect the first gear (1) against overloading and fracture.
    Type: Application
    Filed: August 25, 2003
    Publication date: April 15, 2004
    Inventor: Helmut Thoma
  • Patent number: 6561945
    Abstract: A laminated carrier comprises a first end plate, a second end plate, and a connection joining the first and second end plates together such that windows are formed therebetween for locating planetary gears. At least one of the first and second end plates comprises multiple layers of material joined together, such that a non-uniform internal structure is formed.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: May 13, 2003
    Assignee: The Torrington Company
    Inventors: Charles W. Shattuck, Christopher Kaswer, Phillip J. Draper, Mitchell Bussell
  • Patent number: 6510762
    Abstract: A control cam or a gear wheel having a plurality of layers of flat material placed one on top of the other. Each of the layers of flat material is of a multi-part form with partition lines that extend in a direction of planes over the layers of material. At least some of the partition lines of neighboring layers of the flat material are offset in relation to one another. The partition line of a layer of flat material is arranged so that in both circumferential directions it lies approximately equally spaced in relation to a partition line of a neighboring layer of flat material.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: January 28, 2003
    Assignee: Volkswagen AG
    Inventors: Alfred Beier, Dietrich Distler
  • Publication number: 20020121152
    Abstract: A gear set comprising a pair of phased split gears, a driven gear (1) and a driving gear (2). The sections ((3)(4) and (5)(6)) of each of the split gears are offset from each other, preferably by one-half pitch, and in one of the two split gears, the sections of the gear may rotate relative to each other. The two sections of that gear must then be connected by a means that allows the transmission of torque between the two, preferably by being resiliently loaded by a torsion spring (33) or other bias medium to the leading edge of the meshing tooth of the mating gear. When the driving split gear is turned, force is initially applied to the driven gear through the resilient bias medium. This allows perfect mesh between the two gears in the drive while taking manufacturing variability into consideration.
    Type: Application
    Filed: March 4, 2002
    Publication date: September 5, 2002
    Inventors: David C. White, Philip J. Mott
  • Publication number: 20020112556
    Abstract: An anti-noise gear wheel against which at least one vibration damping mass made from a heat-resistant and oil-resistant material is coupled in order to de-tune its vibration behavior. In order to produce an anti-noise gear wheel which is simple to assemble and whose anti-vibration mass can be mounted in the gear assembly area using standard means, the anti-vibration mass is applied against the gear wheel by its full surface under a defined contact pressure. As a result, the use of adhesive to make an anti-noise gear wheel, which has been common practice to date, can be dispensed with.
    Type: Application
    Filed: August 14, 2001
    Publication date: August 22, 2002
    Inventors: Winfried Rehle, Martin Stowasser, Herbert Weitnauer
  • Patent number: 6419061
    Abstract: A fabricated gear is provided which is formed from a plurality of plates disposed in series one on top of another. Each of the plates include a plurality of teeth along an outer circumference thereof. An aperture extending through a center portion of each of the plates is provided. This aperture forms an inner circumference within each of the plates and is capable of receiving a shaft member therethrough. The plates are secured together to form the fabricated gear. This fabricated gear may be keyed onto a shaft member. Alternatively, an anti-backlash mechanism may be provided in the fabricated gear to achieve one direction rotation of a shaft member in a manner similar to a pawl and ratchet mechanism. This anti-backlash mechanism is formed by providing at least one indentation within an inner circumference of at least some of the plates which cooperates with a cylindrical member positioned within an opening formed by this indentation.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: July 16, 2002
    Assignee: Westinghouse Air Brake Technologies Corporation
    Inventors: Michael E. Ring, Scott L. Natschke
  • Patent number: 6280115
    Abstract: To secure a control element in the axial direction on a shaft member, the control element is pushed onto a region of the shaft member which has a slightly enlarged diameter, displacing shaft material in the process to form a burr on one side of the control element. Then a punch is pushed onto the enlarged diameter region to produce another burr by displacement of shaft material on the other side of the control element which is thus held axially on the shaft member in a positive manner in both directions. The control element is preferably formed from a multiplicity of layers of flat stock.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: August 28, 2001
    Assignee: Volkswagen AG
    Inventors: Alfred Beier, Dietrich Distler
  • Patent number: 6189399
    Abstract: The invention relates to an adjustment device for motor vehicle seats which contains a gearing part which meshes with a gearing member to limit backlash, the gearing part is formed by a main part consisting of a main gearing and a compensation part with an elastic member arrange between the parts. A swiveling axis connects the parts. The degree of backlash of the two parts is restricted to a circular movement based on the connection through the swiveling axis.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: February 20, 2001
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Ernst-Reiner Frohnhaus, Burckhard Becker, Michael Lingner
  • Patent number: 6055880
    Abstract: A continuously variable transmission (10) having input (12) and output (14) gearsets each having a pair of bevelled gears (16) rotatable about generally coplanar respective axes of rotation (22) and with the two bevelled faces (24) in a spaced-apart parallel relationship. The input (12) and output (14) gearsets are mounted opposite one another with the bevelled faces (24) aligned. A restorably deformable transfer ring is mounted between the input and output gearsets and a portion of the transfer ring (28) is captured between opposed teeth (24) of the bevelled gears (16). The transfer ring (28) is laterally moveable relative to the input (12) and output (14) gearsets.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: May 2, 2000
    Assignee: Designco Inc.
    Inventor: Noru Gogovitza
  • Patent number: 6047607
    Abstract: A transmission gear wheel has at least two gear wheel elements which are provided with teeth on their circumference and which, coaxially and non-displaceably with respect to one another in the circumferential direction. Mutually offset teeth connect the elements with one another such that, for the engagement of a meshing gear wheel, the existing tooth flank play is reduced or discontinued. At least the teeth of one gear wheel element are constructed such with respect to their elasticity that, during the engagement of meshing gear wheel, at least starting at a defined transmitted torque, the offset in the circumferential direction of the tooth transmitting this torque is at least partially discontinued with respect to the tooth of the other gear wheel element by means of a deformation.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: April 11, 2000
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Gunter Weber, Heinrich Samitsch, Eduard Mohorko
  • Patent number: 5934144
    Abstract: An assembly suitable for preventing and/or effectively dampening the presence of backlash within a worm gear type drive is described. The assembly includes a drive gear adapted to be mounted on a shaft. The drive gear has an annular body with a plurality of teeth extending radially outwardly therefrom. The assembly also includes an offsetable secondary gear mounted to the drive gear. The secondary gear has a complementary annular body with a plurality of teeth extending radially outwardly therefrom. The teeth on the drive gear are equal in number and pitch to the teeth on the secondary gear. The teeth on the drive gear and the secondary gear, together form an array of expandable teeth having a variable thickness. Operatively connected to the drive gear and to the secondary gear is a biasing means for expanding the variable thickness of each expandable tooth.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: August 10, 1999
    Assignee: Active Automation, Inc.
    Inventor: Sinisa V. Marinkovic
  • Patent number: 5899120
    Abstract: A laminated counterweight for connecting the main shaft with the crankpin of a crankshaft in which the counterweight includes a pair of end laminations which are circular in shape and have a central opening dimensioned to receive the main shaft and a crankpin opening radially spaced from the central opening and dimensioned to receive the crankpin. A plurality of central laminations is sandwiched in between the end laminations. Each central lamination, like the end laminations, includes a central opening dimensioned to receive the main shaft as well as a crankpin opening dimensioned to receive the crankpin. A pair of cutouts is provided through each central lamination and, said cutouts being disposed on opposite sides of the radius extending between the central opening and the crankpin opening.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: May 4, 1999
    Assignee: Panther Machine, Inc.
    Inventor: Donald G. Leith
  • Patent number: 5852951
    Abstract: A composite gear includes one or more metal stamped plates, and two thermoplastic layers disposed on opposite sides of the plates. Apertures are provided in the stamped metal plates so that the molten thermoplastic material may flow through the apertures and anchor the two thermoplastic layers to each other as well as to the metal plates. The composite gear has composite gear teeth which consist of one or more metal gear teeth portions sandwiched between two thermoplastic gear teeth portions. The thermoplastic gear teeth portions extend outwardly from the metal gear teeth portions so that the thermoplastic teeth portions absorb loads under normal operating conditions. Under abnormal conditions such as when an abrupt stop occurs, the thermoplastic portions of the gear teeth are compressed and the higher torque forces resulting from the abnormal condition are absorbed by the metal gear teeth portions.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: December 29, 1998
    Assignee: Briggs & Stratton Corporation
    Inventor: John D. Santi
  • Patent number: 5590569
    Abstract: The energy storage flywheel device (6) includes a plurality of annular shaped composite sections (8) and an annular shaped insert (10). The insert (10) has a specific radial strength substantially greater than the composite sections' specific radial strength. The composite sections (8) and the insert (10) are alternately stacked such that they have a common axis of rotation. They are bonded to each other such that shear stress is transferred between the composite sections (8) and insert (10). In some applications, the flywheel (6) may comprise at least one annular shaped metal matrix composite section (8).
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 7, 1997
    Assignee: United Technologies Corporation
    Inventors: Vincent C. Nardone, Mark S. Thompson, Thomas G. Meyer
  • Patent number: 5586471
    Abstract: The energy storage flywheel device (6) includes a plurality of annular shaped composite sections (8) and an annular shaped insert (10). The insert (10) has a specific radial strength substantially greater than the composite sections' specific radial strength. The composite sections (8) and the insert (10) are alternately stacked such that they have a common axis of rotation. They are bonded to each other such that shear stress is transferred between the composite sections (8) and insert (10). In some applications, the flywheel (6) may comprise at least one annular shaped metal matrix composite section (8).
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 24, 1996
    Assignee: United Technologies Corporation
    Inventors: Vincent C. Nardone, Mark S. Thompson, Thomas G. Meyer
  • Patent number: 5452625
    Abstract: The energy storage flywheel device (6) includes a plurality of annular shaped composite sections (8) and an annular shaped insert (10). The insert (10) has a specific radial strength substantially greater than the composite sections' specific radial strength. The composite sections (8) and the insert (10) are alternately stacked such that they have a common axis of rotation. They are bonded to each other such that shear stress is transferred between the composite sections (8) and insert (10). In some applications, the flywheel (6) may comprise at least one annular shaped metal matrix composite section (8).
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: September 26, 1995
    Assignee: United Technologies Corporation
    Inventors: Vincent C. Nardone, Mark S. Thompson, Thomas G. Meyer
  • Patent number: 5359771
    Abstract: In a process for the manufacture of a gear wheel in an internal geared wheel pump, which wheel consist of two half-wheels (2A, 2B), which are respectively equipped with overflow ducts (3) constructed as half cavities (4A, 4B), into which balls can be inserted, the half-wheels (3A, 3B) are joined so that the complete overflow ducts (3) are formed from the half-cavities (4A, 4B) and the teeth (5) of the gear wheel (1) lie over one another in alignment. The insertion of any valve balls into the half-cavities (4A or 4B) of a half-wheel (2A or 2B) is performed before a welding operation and the half-wheels (2A, 2B) undergo a capacitor discharge welding process.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: November 1, 1994
    Assignee: Schwaebische Huettenwerke GmbH
    Inventors: Michael Krehl, Rolf Schwarze, Gerhard Subek
  • Patent number: 5337626
    Abstract: A laminated gear and a method of forming the laminated gear are disclosed. The method comprises punching a central hole and a circular array of closely adjacent perforations in a generally planar sheet. The array defines an interior portion having the outline of the gear, and a selvedge portion disposed outboard the perforations. The central hole and the perforations are progressively stamped until they have burnished faces perpendicular to the sides of the sheet. Web portions interconnecting the interior and selvedge portions are then broken to separate the gear from the sheet. A projection and corresponding recess are then stamped on the opposite sides of the gear. A predetermined number of gears are queued and finally arranged into an assembly by frictionally nesting the projections and corresponding recesses. The central holes are thereby aligned to form a bore adapted to be press fit onto a camshaft or crankshaft. The laminated gear formed by this method is also disclosed.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: August 16, 1994
    Assignee: Ryobi Outdoor Products, Inc.
    Inventors: Robert G. Everts, Harry G. Rickard
  • Patent number: 5181433
    Abstract: A gear is provided with double rows of teeth having the same pitch circle, which are deviated from each other in the circumferential direction. The gear can be mutually engaged with another counterpart identical with no backlash between the meshed teeth, whereby a rotary motion can be efficiently and smoothly transmitted between the rotating gears engaged without involving vibrations and noises.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: January 26, 1993
    Assignee: Chiba Dies Co., Ltd.
    Inventors: Kiyoshi Ueno, Teisuke Bushimata
  • Patent number: 4947700
    Abstract: This invention relates to a unique transmission system for applying torque from an engine flywheel to the drive train of an automotive vehicle including a long travel viscous damped torsional damper driven by the flywheel and coupled to a continuously variable transmission which in turn is coupled to a wet drive clutch, the output of which is connected to an output counter shaft for the automotive drive train. An important part of the unique combination is the long travel viscous damped torsional damper of the invention which includes an enclosed, effectively sealed housing contains input and output members coupled through a plurality of series parallel spring sets and immersed in a viscous medium to provide effective viscous damping matched to the effective spring rate of the mechanical damping system to accommodate both transient and steady-state vibrational torques. The damper is especially useful with the continuously variable transmission but is useful in other applications as well.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: August 14, 1990
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: John M. Kern, Donald E. Freyburger, Karl F. Schneider, Romas B. Spokas
  • Patent number: 4901821
    Abstract: A motor operated mechanism for transferring energy to the energy storing mechanism of a circuit breaker of the type which utilizes the energy to close the primary contacts of the circuit breaker. The mechanism includes a motor for driving a cam and follower assembly. The cam and follower assembly cooperate with a linkage to supply rotational motion of an energy delivery shaft, wherein the energy delivery shaft is coupled to the energy storing mechanism of the circuit breaker.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: February 20, 1990
    Assignee: Siemens Energy & Automation, Inc.
    Inventor: W. Dale Robbins
  • Patent number: 4838107
    Abstract: A rotary drive element for damping torsional vibration comprises an outer part (1) and an inner part (2) defining an annular space therebetween, containing a plurality of interleaved plates and a viscous fluid. The plates comprise a set of first plates (3) having internal teeth (6') which engage teeth (8) on the inner part (2) of the element substantially without circumferential clearance, and outer teeth (5) which engage teeth (7) in the outer part (1) with a circumferential clearance. The second set of plates has inner teeth which engage the teeth of the inner part with a circumferential clearance, and outer teeth which engage the teeth in the outer part (1) without a circumferential clearance. Thus the inner and outer parts are able to move angularly relative to one another according to the circumferential teeth clearances, which movement is damped by the viscous fluid between the plates. The drive element may be incorporated in a gear wheel for a vehicle transmission, or a clutch driven plate.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: June 13, 1989
    Assignee: Uni-Cardan Aktiengesellschaft
    Inventor: Gert Herrmann
  • Patent number: 4630498
    Abstract: A wheel assembly includes a cam and a cam gear mounted on a camshaft of an internal combustion engine. The cam gear is constructed of a laminated stack of flat plate members which are disposed in abutting relationship to one another to form a plurality of axially spaced and radially extending interfaces. The cam gear is press fit onto the camshaft and the frictional forces between the gear and the camshaft provide the substantially sole force for maintaining the interfaces between the plate members in abutting relationship at their radially outer ends to form integral tooth members. The cam is also constructed of a laminated stack of flat plate members and press fit onto the camshaft in substantially the same manner as the gear to form an integral cam surface. The plates which form the cam are stamped from the plates that form the gear.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: December 23, 1986
    Assignee: Briggs & Stratton Corp.
    Inventor: John D. Santi
  • Patent number: 4522080
    Abstract: A wheel assembly includes a cam and a cam gear mounted on a camshaft of an internal combustion engine. The cam gear is constructed of a laminated stack of flat plate members which are disposed in abutting relationship to one another to form a plurality of axially spaced and radially extending interfaces. The cam gear is press fit onto the camshaft and the frictional forces between the gear and the camshaft provide the substantially sole force for maintaining the interfaces between the plate members in abutting relationship at their radially outer ends to form integral tooth members. The cam is also constructed of a laminated stack of flat plate members and press fit onto the camshaft in substantially the same manner as the gear to form an integral cam surface. The plates which form the cam are stamped from the plates that form the gear. A method of forming the wheel assembly is also disclosed.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: June 11, 1985
    Assignee: Briggs & Stratton Corp.
    Inventor: John D. Santi
  • Patent number: 3999445
    Abstract: A high-precision pinion gear comprises a core formed of a plurality of stampings bonded together in axial alignment and having a plurality of relatively low precision teeth formed thereon. A thin plastic layer bonded to the circumference of the core provides a precision plastic surface on which the teeth of the pinion gear are formed with high precision.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: December 28, 1976
    Inventor: James P. Liautaud
  • Patent number: 3988942
    Abstract: A spur gear formed of a laminated stack of axially thin spur gear elements having straight axially extending teeth identical involute tooth profiles and with means for securing them together in coaxial relation with stepped increments of phase between them producing a gear having a helical tooth pattern distinguished by the smoothness and lack of vibration of a helical gear while nevertheless avoiding the end thrust problems and the variations in phase which can occur with helical gearing.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: November 2, 1976
    Assignee: Roland Offsetmaschinenfabrik Faber & Schleicher AG
    Inventor: Harry M. Greiner