Patents Assigned to BorgWarner, Inc.
  • Synergistic blade and hub structure for cooling fans
    Patent number: 8240996
    Abstract: A synergistic blade and hub structure for a cooling fan. Helical gussets are provided which proceed from the central hub member adjacent one blade member to the trailing edge of an adjacent blade member. The helical gussets provide structural load paths as well as aerodynamic flow guides. The helical gussets extend axially rearwardly to the trailing edges of preceding blade members and provide structural attachments between the leading and trailing edges of adjacent blade members. Hollow triangular structures are also provided on the rear of the fan structure and the triangulation area provides superior stiffness.
    Type: Grant
    Filed: May 10, 2008
    Date of Patent: August 14, 2012
    Assignee: BorgWarner Inc.
    Inventor: Michael M. Surls
  • ACTIVE CONTROL TENSIONER
    Publication number: 20120202629
    Abstract: A tensioner system for an engine including at least one driven sprocket, at least one driving sprocket, a chain, and a tensioner for tensioning the chain. The damping of the tensioner is actively controlled by a valve that allows fluid to exit the tensioner.
    Type: Application
    Filed: September 8, 2010
    Publication date: August 9, 2012
    Applicant: BORGWARNER INC.
    Inventor: Fenton O'Shea
  • RADIO COMMUNICATION SYSTEM, TRANSMITTING APPARATUS, RECEIVING APPARATUS, RECEIVING METHOD AND TRANSMITTING METHOD
    Publication number: 20120201655
    Abstract: The invention relates to a turbine casing (1) of an exhaust-gas turbocharger (62), having an inlet connection piece (2) adjoined by a spiral (3), and having an outlet connection piece (4), characterized by an insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the outlet connection piece (4).
    Type: Application
    Filed: October 22, 2010
    Publication date: August 9, 2012
    Applicant: BORGWARNER INC.
    Inventors: Susumu Kusakabe, Fumio Kubono, Mamoru Suzuki, Takao Yoshizawa
  • Hydraulic clutch assembly for a motor vehicle driveline
    Patent number: 8235198
    Abstract: A hydraulic clutch assembly for a motor vehicle driveline is provided. The clutch assembly comprises an input member, and output member and a friction clutch pack operably disposed therebetween for controlling torque transfer. A first fluid circuit contains hydraulic based fluid at a first pressure and is in fluid communication with the friction clutch pack for lubrication thereof. A second fluid circuit is in fluid communication with the first fluid circuit for replenishing the second fluid circuit with the hydraulic based fluid at a second pressure that is less than the first pressure. The clutch assembly further comprises a motor and a gear train. A first piston is in fluid communication with the second fluid circuit for delivering the hydraulic based fluid thereto A second piston is translated by the hydraulic based fluid displaced by the first piston to actuate the friction clutch pack.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: August 7, 2012
    Assignee: Borgwarner, Inc.
    Inventors: Larry A. Pritchard, Philip J. Francis, Thad Kopp, Tsunlock A. Yu
  • Thermatically operated bypass valve for passive warmup control of aftertreatment device
    Patent number: 8234865
    Abstract: In order for automobile exhaust catalysts to function they must be at operational temperatures. When an engine starts from cold the vehicle, including the exhaust system and any after-treatment device located therein, is at ambient temperature. Since 60% to 80% of the total emissions emitted occur at engine cold start and idle up to 120 seconds, it is imperative that the catalyst function as fast as possible. This invention provides a passive thermatically controlled bypass valve to enable the exhaust flow to bypass the enthalpy loss incurred by driving the turbine wheel of a turbocharger, and thus more rapidly deliver heat to the catalyst or after-treatment.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: August 7, 2012
    Assignee: BorgWarner Inc.
    Inventor: David Andrews
  • METHOD FOR DETERMINING BEARING PLAY OF EXHAUST-GAS-TURBOCHARGER FRICTION BEARINGS
    Publication number: 20120197579
    Abstract: The invention relates to a method for determining bearing play of exhaust-gas-turbocharger friction bearings comprising the following method steps: accelerating the exhaust-gas turbocharger or the body group from standstill to a maximum rotational speed and at the same time registering the vibration acceleration by means of a sensor; determining the constant-tone frequency of the friction bearing at at least one rotational speed; plotting the determined constant-tone frequency in a diagram, in which bearing-play ranges determined experimentally in advance are assigned to constant-tone frequency ranges; and establishing whether or not the determined constant-tone frequency lies in a bearing-play target range.
    Type: Application
    Filed: October 1, 2010
    Publication date: August 2, 2012
    Applicant: BORGWARNER INC.
    Inventors: Norbert Walter, Andre Seiler
  • Combustion engine breathing system including a compressor valve for a biturbo with cylinder deactivation
    Patent number: 8230684
    Abstract: One embodiment of the invention includes a combustion engine breathing system including a compressor valve for use with a biturbo system and cylinder deactivation.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: July 31, 2012
    Assignee: BorgWarner Inc.
    Inventor: Matthew B. Delavan
  • Torque biased friction hinge for a tensioner
    Patent number: 8226509
    Abstract: A pivot joint for a single blade spring tensioner or double blade spring tensioner generates a biased friction loss at a pivot joint. The friction torque generated in one direction of joint rotation is greater than the friction torque generated in the opposite direction of rotation. In one embodiment, the direction of torque bias at the joints is used to make the damping of the blade spring greater in compression than in extension. High damping in compression and low damping in extension is a desirable characteristic for a tensioner in most applications. The device may be designed to act as a one-way clutch or as a two-way clutch. The device may also be designed to apply large friction torques only when the joint undergoes large amplitude motions (loss of control).
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 24, 2012
    Assignee: BorgWarner Inc.
    Inventor: Michael Smart
  • Measurement of torque uniformity in multiplate clutches
    Patent number: 8225650
    Abstract: The invention relates to a method for measuring the uniformity of the moments of shiftable friction clutch systems, the individual friction clutch system comprising an adapter at the input end and at least one adapter at the output end, as well as a system for measuring the uniformity of the moments of shiftable friction clutch systems. According to the invention, the friction clutch system is inserted into a measuring apparatus encompassing at least one moment measuring device. The clutch plates that transmit the driving power in a frictionally engaged manner are pressed against each other by means of a test force. The driving motor is driven at a certain test speed. The torque of the driving motor transmitted by means of the friction clutch system is measured within a certain interval with the aid of the moment measuring device.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: July 24, 2012
    Assignee: BorgWarner Inc.
    Inventors: Michael Ritschel, Ludwig Moch, Michael Schäfer
  • ENGINE BREATHING SYSTEM VALVE AND PRODUCTS INCLUDING THE SAME
    Publication number: 20120181468
    Abstract: One embodiment may include an engine breathing system valve (10) for an internal combustion engine breathing system (12) including a valve body (60), a stem (62), and a valve member (64). The valve body (60) has a port (66) with a center axis (CP). The valve body (60) may have a seating surface (68) lying along a cone outer surface (CS) of an imaginary cone (C). The imaginary cone (C) has a cone center axis (CA). The stem (62) is carried by the valve body (60) so that it can rotate. The stem (62) has an axis of rotation (R-i) radially offset from the port center axis (CP). The valve member (64) is connected to the stem (62) and may have a valve member plane (M) axial Iy offset from the axis of rotation (R-i).
    Type: Application
    Filed: August 4, 2010
    Publication date: July 19, 2012
    Applicant: BORGWARNER INC.
    Inventors: Robert J. Telep, Peter G. Weissinger
  • Integrated clutch assembly damper arrangement
    Patent number: 8220608
    Abstract: A clutch assembly and damper arrangement is provided that includes a driver hub and a driven element coupled to the driver hub by a compliance element. A clutch is provided that is selectively engageable to the driven element. The clutch has a housing supporting the compliance element and is torsionally unitary with the driven element.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: July 17, 2012
    Assignee: BorgWarner Inc.
    Inventors: Karl-Heinz Bauer, Hans-Jürgen Hauck, Thomas E. Braford, Jr., Till Ebner
  • Planetary ring gear lug design for NVH improvement
    Patent number: 8216107
    Abstract: In the present invention, an improved planetary gearset which reduces the amount of vibration transferred from the planetary gearset to a housing. The present invention is a new way to interface the ring gear of a planetary gearset with the housing by incorporating a series of lugs around the ring gear and adjusting the number of lugs and the size and the shape of the lugs. The distribution of these lugs affects the sound levels transferred from the planetary gearset. Additionally, multiple rows of lugs can also be strategically arranged on one ring gear to gain further noise and vibration improvement.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: July 10, 2012
    Assignee: Borgwarner Inc.
    Inventors: Kun Tao, Susan M. Stroope
  • HYDRAULIC CIRCUIT FOR AUTOMATIC TRANSMISSION HAVING AREA CONTROLLED SHIFT ACTUATOR VALVE WITH FLOW FORCE COMPENSATION
    Publication number: 20120168274
    Abstract: A hydraulic circuit (88) for an automatic transmission (10) that employs a shift actuation valve (96) that controls the actuation of the synchronizer (29) for selectively controlling gear engagement. The shift actuation valve (96) includes a valve member (114) having at least one valve element (122) with an outer diameter (162) and a metering face (164). The metering face (164) is adapted to control the flow of pressurized fluid between an inlet (108) and an outlet (110) of the valve body (102). The metering face (164) includes a flow force compensating annular void (166) disposed adjacent the outer diameter (162) and that is defined by a lead angle ? measured between the outer diameter (162) and a line intersecting the outer diameter (162) and tangential to the annular void (166). A solenoid (104) is employed to move the valve member (114) between predetermined positions.
    Type: Application
    Filed: September 2, 2010
    Publication date: July 5, 2012
    Applicant: BORGWARNER INC.
    Inventor: David C. Mills
  • EXHAUST-GAS SUPPLY DEVICE OF A TURBINE WHEEL OF AN EXHAUST-GAS TURBOCHARGER
    Publication number: 20120159946
    Abstract: An exhaust-gas supply device (1) of a turbine wheel (2) of an exhaust-gas turbocharger (3), having a two-channel turbine housing (4), and an exhaust manifold (7) which can be connected to an internal combustion engine (8), which exhaust manifold (7) has a first manifold channel (9) which connects first cylinders (Z1, Z4) of the internal combustion engine (8) so as to form a first manifold exhaust-gas path length, and a second manifold channel (10) which connects second cylinders (Z2, Z3) so as to form a second manifold exhaust-gas path length, to generate virtually identical overall exhaust-gas path lengths of the two channels.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 28, 2012
    Applicant: BORGWARNER INC.
    Inventor: Rolf Sauerstein
  • Torsional vibration damper comprising a sectional primary element
    Patent number: 8206227
    Abstract: A torsional vibration damper includes a drive-side primary element having at least one primary dog, an output-side secondary element having at least one secondary dog, and at least one spring device between the primary and secondary dogs for spring-elastic coupling of the primary element to the secondary element and including a plurality of spring elements. A separator sheet includes a ring element. At least one sliding block extends from the ring element between adjacent spring elements and is arranged circumferentially about the spring elements. The primary element has also an inner part having an external toothing, an outer part on which the primary dog is arranged and having an internal toothing engaging into the external toothing, and at least one damping part arranged between the external and internal toothing for vibration damping between the inner and outer parts.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 26, 2012
    Assignee: BorgWarner Inc.
    Inventors: Jochen Boelling, Christian Bernhard Halm, Frank Guenter, Volker Heinz
  • Turbocharger with improved charge pressure regulating flap configuration
    Patent number: 8205448
    Abstract: The invention relates to a turbocharger (1) comprising a compressor (2), a turbine connected to the compressor (2) by means of a shaft (3) and provided with an exhaust inlet (5) and an exhaust outlet (7), and a bypass line (6) which branches off from the exhaust inlet (5), bypassing the turbine, and leads to the exhaust outlet in which a boost-pressure regulating flap is arranged, said regulating flap comprising a flap plate (13) which is connected to a flap shaft (14) by means of a connecting device (12).
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: June 26, 2012
    Assignee: BorgWarner Inc.
    Inventors: Silvio Koch, Thomas Koerner, Rainer Wickert
  • SILENT CHAIN
    Publication number: 20120157252
    Abstract: To provide a silent chain which makes it possible to further reduce friction loss during operation and to enhance operating efficiency, while also making it possible to reliably prevent assembly errors. A silent chain 1 in which a plurality of links 2 each having a pair of tooth parts 21 which mesh with sprockets and a pair of pin holes 20 are arranged in the lengthwise direction and thickness direction and are linked so as to be able to pivot about one another by linking pins 5 which are inserted into the pin holes 20, and sliding plates 3 are provided. The sliding plates 3 have a pair of pin holes 30 into which the linking pins 5 are inserted, and also have a back surface part 3a which has a greater back surface height h2 than the back surface height h1 of the links 2 and comes into contact with a tensioner arm or chain guide. The sliding plates 3 do not have tooth parts which mesh with the sprockets.
    Type: Application
    Filed: August 24, 2010
    Publication date: June 21, 2012
    Applicant: BORGWARNER INC.
    Inventors: Yukio Yoshida, Junichi Eda
  • CLUTCH DEVICE
    Publication number: 20120152684
    Abstract: A clutch device for arrangement in a drive train of a motor vehicle between a drive unit and a transmission is provided. The clutch device may include a multiple-disk clutch arrangement for selective torque transfer between the drive unit and the transmission. The multiple-disk clutch arrangement may be actuable via a force transfer element supported on a disk carrier of the multiple-disk clutch arrangement.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 21, 2012
    Applicant: BORGWARNER INC.
    Inventors: Hans Juergen Hauck, Tobias Zacher
  • Automatic axle disconnect
    Patent number: 8204657
    Abstract: A method of regulating an axle disconnect device that is operable in an axle assembly of a vehicle drivetrain includes monitoring a plurality of parameters, determining whether an occurrence of at least one of a traction event and a stability event is imminent based on at least one of the parameters, the stability event being determined based on a first set parameters, and the traction event being determined based on a second set of parameters that includes less parameters than the first set of parameters, and regulating the axle disconnect device to an engaged position if the occurrence of the at least one of the traction event and the stability event is imminent.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: June 19, 2012
    Assignee: BorgWarner, Inc.
    Inventors: John R. Buszek, Brian Ginther, Earl David Ray
  • Random elastomer cushion rings for a chain sprocket
    Patent number: 8202185
    Abstract: A sprocket includes a plurality of teeth spaced about its periphery, roots located between pairs of adjacent teeth, and a cushion ring contacted by a chain engaging the sprocket teeth. The roots have root radii defined as the distance between the center of sprocket and the point along the root closest to the sprocket center in the radial direction. In some embodiments, the roots have three distinct radii. The cushioning material of the cushion ring receives the impact while engaging the chain. In some embodiments, the cushion ring has a contour substantially following the contours of the sprocket teeth geometry. In some embodiments, the cushion ring has a randomized contour to provide predetermined cushioning that varies from tooth to tooth around the sprocket.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: June 19, 2012
    Assignee: BorgWarner Inc.
    Inventor: J. Christian Haesloop