For Crankshaft Patents (Class 384/429)
  • Patent number: 12129893
    Abstract: A bearing is disclosed. The bearing includes a first half shell and an eccentric second half shell, the first half shell and the second half shell configured to connect at a joint to form a cylindrical bearing. The first half shell has a first crown thickness at a first crown of the first half shell, and a first wall thickness between the first crown and the joint. The second half shell has a second crown thickness at a second crown of the second half shell, and a second wall thickness between the second crown and the joint. The second crown thickness is greater than the first crown thickness, and the first wall thickness is equal to the second wall thickness at a point of equal thickness between 10 and 60 degrees from the joint.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: October 29, 2024
    Assignees: Mahle Engine Systems UK Ltd, Mahle International GmbH, MAHLE France SAS
    Inventors: Olivier Beaurepaire, David Merritt
  • Patent number: 11898625
    Abstract: A stator assembly for a torque converter includes a body, a one-way clutch, and a washer. The body is rotatable about an axis and has a cavity defined by an axial wall radially spaced from the axis and a radial wall extending radially inward from the axial wall. The one-way clutch is disposed in the cavity. The washer includes a thrust surface, a supporting surface, and an axial retention feature. The thrust surface faces away from the cavity. The supporting surface directly contacts the one-way clutch. The axial retention element is configured to connect to the axial wall of the body.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: February 13, 2024
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Alexander Reimchen, Christopher Krause
  • Patent number: 11892280
    Abstract: A method and apparatus for determining crush height of a plain bearing shell, including a light source for forming illuminating light to the plain bearing shell; a sensor device configured to capture an image; at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to: capture a first image of the plain bearing shell in a first mode, wherein no external compression stress in a circumference direction of the plain bearing shell is formed; generate plain bearing data based on the first captured image; maintain housing reference data including at least diameter information of a bore for receiving the plain bearing shell; and determine crush height of the plain bearing shell based on the plain bearing data and the housing reference data.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 6, 2024
    Assignee: Wärtsilä Finland Oy
    Inventors: Janne Leppäkangas, Pasi Halla-aho, Jaakko Istolahti, Jukka-Pekka Vesala
  • Patent number: 11814087
    Abstract: A support structure of a railcar bogie and a method of supporting a railcar bogie each of which is capable of easily managing axial force acting on a fastener between a pressing member and a main body sandwiching a shaft body. In the support structure of the railcar bogie, the pressing member and the main body are fastened to each other such that a clearance is formed between the pressing member and the main body. The support structure is configured such that a car upper-lower direction end portion, located around a first recess of the main body, of the main body and a car upper-lower direction end portion of the pressing member are substantially flush with each other.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: November 14, 2023
    Assignee: KAWASAKI RAILCAR MANUFACTURING CO., LTD.
    Inventors: Fumikazu Konoike, Francois Olivier Uchida
  • Patent number: 11703012
    Abstract: An internal combustion engine includes a crankshaft. The crankshaft includes multiple crank journals, at least two crank pins positioned between two of the multiple crank journals that neighbor one another, and at least one pin arm. Each pin arm may be positioned between two of the crank pins neighboring one another. Arrangements may include multiple crankshaft supports and multiple thrust bearings. These elements may be distributed about the crankshaft such that two or more of the multiple crankshaft supports have at least one associated thrust bearing. Each of the crankshaft supports having the associated thrust bearing may support one of the multiple the crank journals. Each thrust bearing may be positioned between the crankshaft and the crankshaft support having the associated thrust bearing.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 18, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Samuel D. Koch, Yeongching Lin, Toshiharu Noguchi
  • Patent number: 10907683
    Abstract: A half thrust bearing includes a back metal layer, a bearing alloy layer defining a slide surface, and two thrust relieves formed adjacent to both circumferential end surfaces of the half thrust bearing and each including a thrust relief surface. The back metal layer includes an exposed end face configuring at least a part of the circumferential end surface, an exposed slant surface configuring at least a part of the thrust relief surface, and a transition surface formed between the exposed end face and the exposed slant surface. The transition surface is covered with a cover member including a cover end surface configuring at least a part of the circumferential end surface and a cover slant surface configuring at least a part of the thrust relief surface.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: February 2, 2021
    Assignee: DAIDO METAL COMPANY LTD.
    Inventor: Shiho Goto
  • Patent number: 10590923
    Abstract: A reciprocating pump capable of reducing its overall size by suppressing the size of an entire drive unit. A plurality of piston parts move in the same direction and draw fluid into a plurality of pump chambers and discharge the fluid. The pump chambers are adjacent to each other. A motor has a drive shaft between the centers of piston parts located at both ends in the installation direction of the pump chambers and oriented in a direction substantially orthogonal to the installation direction of the pump chambers and substantially orthogonal to the moving direction of the piston parts. A plurality of cams are aligned adjacent each other in the axial direction on the motor drive shaft. The cams are linked to the piston parts so that the cams cause the reciprocal movement of the piston parts.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: March 17, 2020
    Assignee: Tacmina Corporation
    Inventor: Nobuhiko Fujiwara
  • Patent number: 9759258
    Abstract: A sliding member includes: a lining layer formed from an alloy having a predetermined shape; and an overlay layer formed on an inner circumferential surface of the lining layer, the overlay layer being formed of a resin, the overlay layer sliding with a shaft, the overlay layer including a raised portion a height of which in a predetermined area including each of an edge in an axial direction of the shaft is greater than a height of another area of the overlay layer.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: September 12, 2017
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Shu Kamiya, Toshiyuki Chitose, Takashi Tomikawa, Yasunori Kabeya, Taichi Yoshimi
  • Patent number: 9726219
    Abstract: A thrust washer for a flange half-bearing may include a semi-annular panel having an inner edge and an outer edge. A plurality of hooking lugs may project inwardly from the inner edge of the panel. The hooking lugs may have at least one latching edge configured to engage with a corresponding opening in a bearing shell received by the thrust washer and prevent disconnection of the thrust washer and the bearing shell without deformation of the bearing shell. The hooking lugs may have a hooking lug inner portion proximate to a central part of the thrust washer around the inner edge of the panel for engaging against an edge of the corresponding opening of the bearing shell, and a hooking lug outer portion remote from the central part around the inner edge of the panel. The hooking lug inner portion may be thinner than the hooking lug outer portion.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: August 8, 2017
    Assignees: Mahle Engine Systems UK Ltd, Mahle Composants Moteur France SAS, Mahle Industries, Incorporated, Mahle Engine Components Slovakia S.R.O., Mahle International GmbH
    Inventors: Tino Gallas, Ha Tran, Mark Sharpe, Stephane Barral, Kevin Berkery, Miroslav Bukna, Murray Scott
  • Patent number: 9388846
    Abstract: A core structure for a cast crankshaft is provided which eliminates the need to machine and install plugs in one or more of the main bearing lightening holes. This is achieved by configuring the core structure to take out all but a thin wall of material in the center of the main bearing journals.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: July 12, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ronald M. Tkac, Edward R. Romblom
  • Patent number: 8992087
    Abstract: A crank drive includes a crankshaft journal having a concave-shaped surface, a bearing element in which the crankshaft journal is rotatably mounted, and a bearing shell disposed between the crankshaft journal and the bearing element and having a first convex-shaped surface matched with the concave-shaped surface of the crankshaft journal. The bearing shell has a second surface associated with the bearing element and is constructed such that the bearing shell has a non-constant cross section in the longitudinal direction of the crankshaft journal. The bearing element surface facing the bearing shell is adapted to the second surface of the bearing shell regarding the shape of the bearing element surface, and the second surface of the bearing shell is cylindrical or concave and has a smaller curvature than the concave-shaped surface of the crankshaft journal.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 31, 2015
    Assignee: Thyssenkrupp Metalurgica Campo Limpo Ltda.
    Inventors: Alex de Souza Rodrigues, Luis Antonio Fonseca Galli, Tavares Walter Oliveira, Stefano Sergio Guerreiro
  • Patent number: 8974121
    Abstract: A thrust plate is provided. The thrust plate includes a first side surface and a second side surface. The thrust plate also includes an inner surface and an outer surface extending axially between the first and second side surfaces respectively. Further, the inner and outer surfaces of the thrust plate define an inner diameter and outer diameter respectively. The thrust plate further includes a number of mounting apertures extending between the first and second side surfaces. The number of mounting apertures is defined proximate to the outer diameter of the thrust plate. A wear layer is positioned radially inward from the mounting apertures. The wear layer is integrated into a stepped portion defining a wear prone area on the first and/or second side surfaces. Further, the wear layer is made of a material different from that of a core of the thrust plate.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: March 10, 2015
    Assignee: Caterpillar Inc.
    Inventor: Paul D. Rudolph
  • Patent number: 8833328
    Abstract: A structural frame is provided. The structural frame includes a bottom surface, first and second cylinder block sidewall engaging surfaces, the first and second cylinder block sidewall engaging surfaces positioned above the bottom surface at a height that is above a centerline of a crankshaft support included in a cylinder block when the structural frame is coupled to the cylinder block.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: September 16, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher K. Palazzolo, Darren Sipila, Steve Poe, Philip D. Cierpial, Changsheng Gan
  • Patent number: 8646980
    Abstract: A bearing shell segment for internal combustion engines, composed of a body defining an inner surface that receives a coating and makes contact with a layer of lubricant oil film and an opposite outer surface, associable to a bearing, an inner surface having at least a first area substantially free from the compression load coming from the movement of the piston by the explosion of air-fuel mixture, and a second area which receives compression load coming from the movement of the piston by the explosion of air-fuel mixture. The first area has at least a surface portion to capture foreign particles present in the layer of lubricant oil film, the surface portion having cavities positioned so as to enable at least one foreign particle to be captured and withheld while moving towards the flow of lubricant oil, before reaching the second area.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: February 11, 2014
    Assignees: MAHLE International GmbH, MAHLE Metal Leve S/A
    Inventor: Denys Flores
  • Patent number: 8556515
    Abstract: A split-type sliding bearing for a crankshaft in an internal combustion engine incorporated in a split-type bearing housing. The sliding bearing consists of a pair of semi-cylindrical bearing bodies combined with each other to form a cylindrical body. The bearing housing has a cylindrical bearing retaining bore and consists of a pair of housing halves. One of the housing halves has a relatively lower stiffness, and the other has a relatively higher stiffness. One of the bearing bodies is held by the housing half having a relatively lower stiffness. The other bearing body is held by the housing half having a relatively higher stiffness. The bearing bodies have an equal outer diameter to each other, and both of the circumferential end parts of one bearing body have a larger thickness than those of the other bearing body prior to incorporation into the housing halves.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: October 15, 2013
    Assignee: Daido Metal Company Ltd.
    Inventors: Aisuke Kuwabara, Osamu Ishigo, Yasushi Saito
  • Patent number: 8449193
    Abstract: Disclosed is a crankshaft bearing for an internal combustion engine. At the inner periphery of the semicircular thrust bearing, two impact load receiving projections are projected besides the two tabs. Each of at least the two impact load receiving projections is between each of the two tabs and each of the circumferential end surfaces of the semicircular thrust bearing. The two impact load receiving projections are at line-symmetrical positions with each other with respect to the center line of the semicircular thrust bearing. A height of the impact load receiving projection is set at a dimension such that a top portion of the impact load receiving projection is not in contact with an outer circumferential surface of the semi-cylindrical sliding bearing in a static state in which the pair of semi-cylindrical sliding bearings is assembled into the bearing housing of the crankshaft and restrained.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: May 28, 2013
    Assignee: Daido Metal Company
    Inventors: Aisuke Kuwabara, Takahiko Mizuno
  • Patent number: 8419285
    Abstract: Disclosed is a sliding bearing consisting of a pair of semi-cylindrical bearings for supporting a crankshaft or a crank pin in an internal combustion engine. The sliding bearing is incorporated in a split-type bearing housing. One of the semi-cylindrical bearings being incorporated in at least one of the pair of housing halves, which one housing half has a relatively higher stiffness, is provided with a number of circumferential grooves on an inner surface of the semi-cylindrical bearing so as to extend circumferentially along the inner surface of the semi-cylindrical bearing. The circumferential grooves existing at least one circumferential end region of the inner surface of the semi-cylindrical bearing have a depth of not less than 10 ?m, the circumferential end region including a circumferential bearing end face orientating a direction opposite to the rotation direction of the shaft or pin.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: April 16, 2013
    Assignee: Daido Metal Company Ltd.
    Inventors: Osamu Ishigo, Atsushi Okado
  • Patent number: 8413633
    Abstract: Featured is a bedplate for a reciprocating engine having a rollerized cranktrain. Such a bedplate includes a peripheral support structure having sides and ends, a plurality of cross members that extend between the sides of the peripheral support structure, and a plurality of rolling element bearings. Each of the plurality of cross members includes a bearing support portion, the bearing support portion being configured so as to receive and retain therein a portion of one of the rolling element bearings. Also, the portion of the rolling element bearing is such that when the bedplate is secured to a cylinder block of the reciprocating engine, the bearing support portion rotatably supports a crankshaft of the reciprocating engine. Also featured is a reciprocating engine having such a bedplate.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: April 9, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai America Technical Center, Inc.
    Inventor: Matthew Dunlavey
  • Patent number: 8393792
    Abstract: In a bearing device 1, annular recesses 3a and 6a that house a thrust bearing 7 are formed in side surfaces of a housing 3 and a cap 6, a rotation preventing protrusion 12b is provided in an outer periphery of a lower side half-split thrust bearing 12 in the thrust bearing 7, and a rotation preventing groove 6b into which the rotation preventing protrusion 12b fits is formed in the annular recess 6a formed in the cap 6.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: March 12, 2013
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Yukitaka Muramoto, Masaru Kondo, Yasuaki Goto, Masao Takahashi
  • Patent number: 8382376
    Abstract: A split-type sliding bearing for a crankshaft is formed of a pair of semi-cylindrical bearings halves which are fitted between a pair of housing halves having respectively high and low thermal expansion coefficients, one of the pair of bearing halves being supported on the housing half having a low thermal expansion coefficient, and the other of the pair of bearing halves being supported on the housing half having a high thermal expansion coefficient. The circumferential end zones of the bearing half supported on the housing half having a high thermal expansion coefficient have a thickness which is greater than that of the circumferential end zones of the bearing half supported on the housing half having a low thermal expansion coefficient.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: February 26, 2013
    Assignee: Daido Metal Company Ltd.
    Inventors: Aisuke Kuwabara, Osamu Ishigo, Yasushi Saito
  • Patent number: 8371754
    Abstract: A split-type sliding bearing for a crankshaft in an internal combustion engine is incorporated in a split-type bearing housing. The sliding bearing is formed of a first and a second semi-cylindrical bearing bodies combined to form a cylindrical body. The bearing housing has a cylindrical bearing retaining bore and is formed of a pair of housing halves. One of the housing halves has a lower stiffness, and the other has a higher stiffness. The first bearing body is held by the housing half having a lower stiffness. The second bearing body is held by the stiffer housing half. The first and second bearing bodies have equal outer diameters, and both of the circumferential end parts of the first bearing body have a larger thickness than those of the second bearing body prior to incorporation into the housing halves.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: February 12, 2013
    Assignee: Daido Metal Company Ltd.
    Inventors: Aisuke Kuwabara, Osamu Ishigo, Yasushi Saito
  • Patent number: 8328425
    Abstract: A split-type sliding bearing for a crankshaft in an internal combustion engine fits within a bearing housing having a housing half with a higher thermal expansion coefficient, and a housing half with a lower thermal expansion coefficient. The pair of semi-cylindrical bearings includes first and second semi-cylindrical bearings, the first being supported on the housing half having a higher thermal expansion coefficient, and the second being supported on the housing half having a lower thermal expansion coefficient. The first and second semi-cylindrical bearings have equal outer diameter, and the first has circumferential ends having a thickness smaller than that of the opposite circumferential ends of the second semi-cylindrical bearing.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: December 11, 2012
    Assignee: Daido Metal Company Ltd.
    Inventors: Tomohiro Ukai, Osamu Ishigo, Yasushi Saito
  • Publication number: 20120243815
    Abstract: Disclosed is a crankshaft bearing for an internal combustion engine. At the inner periphery of the semicircular thrust bearing, two impact load receiving projections are projected besides the two tabs. Each of at least the two impact load receiving projections is between each of the two tabs and each of the circumferential end surfaces of the semicircular thrust bearing. The two impact load receiving projections are at line-symmetrical positions with each other with respect to the center line of the semicircular thrust bearing. A height of the impact load receiving projection is set at a dimension such that a top portion of the impact load receiving projection is not in contact with an outer circumferential surface of the semi-cylindrical sliding bearing in a static state in which the pair of semi-cylindrical sliding bearings is assembled into the bearing housing of the crankshaft and restrained.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 27, 2012
    Applicant: DAIDO METAL COMPANY LTD.
    Inventors: Aisuke KUWABARA, Takahiko Mizuno
  • Patent number: 8166940
    Abstract: A bearing device for supporting a camshaft in a cylinder head is disclosed. The bearing device comprising at least one locking contour, which is connected with at least one counter-locking contour configured at a cylinder head cover, such that the cylinder head cover is clamped tightly against the cylinder head by the bearing device.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: May 1, 2012
    Assignee: Mahle International GmbH
    Inventors: Uwe Grass, Stefan Ruppel, Falk Schneider, Markus Walch
  • Patent number: 8104967
    Abstract: A device encapsulates a main bearing of a crankshaft. The main bearing is supplied with oil via an oil supply groove. The device has a bearing seat for the main bearing and on its sides which face toward the crank webs of the crankshaft, has oil channels which are open in the direction of the main bearing and in the direction of the crankshaft webs. In the device, the oil channels are sealed off in the direction of the crankshaft webs by sealing disks which are fastened to the bearing seat.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: January 31, 2012
    Assignee: Dr. Ing. h.c. F. Porsche AG
    Inventors: Erwin Rutschmann, Willi Schultz, Thorsten Wieg
  • Publication number: 20110318096
    Abstract: The invention relates to a dual material device that includes an insert (12), a part (14) made of a material other than that of) the insert, the insert and the part being assembled by moulding one around the other, the interface between the insert and the part defining at least one junction plane (40), and a bore (26, 28) for receiving a pin, formed in said device and extending through the junction plane, wherein the bore includes an inlet chamfer (36) for guiding the pin up to a pin engagement section (38), characterised in that the inlet chamfer (36) extends beyond the junction plane (40).
    Type: Application
    Filed: February 15, 2010
    Publication date: December 29, 2011
    Applicant: Peugeot Citroen Automobiles SA
    Inventor: David Lausch
  • Patent number: 8079762
    Abstract: Crankshaft bearing cap presenting on one of its faces a semi-cylindrical notch, formed by powder metallurgy with an iron powder blend molded by compaction and sintering, and partially infiltrated with Cu, being the area adjacent to the area around the notch, the one with highest Cu content. A method for manufacturing main bearing caps by infiltration of Cu including the steps of placing the molded cap so that the axis of the semi-cylindrical notch extends in a horizontal direction and the notch cavity is in the upwards position. Placing high Cu content tablets on the upper face of the cap and on the cylindrical arch and sintering of the cap and Cu tablets system.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: December 20, 2011
    Inventors: Antonio Romero Fernandez, Brian Daniel Kaminski
  • Patent number: 7896556
    Abstract: A needle roller bearing comprises an outer ring having a plurality of outer ring members split by split lines extending in an axial direction of the bearing, a plurality of needle rollers arranged on an orbit surface of said outer ring so that they can roll thereon, and a cage holding the needle rollers at intervals. The outer ring member has a projection serving as a positioning engaging part which engages with a housing for positioning, and an engaging click protruding from an axial end of the outer ring member inward along a diameter to prevent the cage from moving in an axial direction, in positions shifted from its circumferential center.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: March 1, 2011
    Assignees: NTN Corporation, Honda Motor Co., Ltd.
    Inventors: Yoshiyasu Nakano, Shinji Oishi, Katsufumi Abe, Akihiko Katayama, Yugo Yoshimura, Noriaki Fujii, Keiko Yoshida
  • Publication number: 20100050979
    Abstract: The present disclosure refers to a crankshaft bearing arrangement for an internal combustion engine. The bearing arrangement comprises: a bearing arranged at a crankshaft of an internal combustion engine; a bearing seat for housing the bearing; and a sealing arrangement for sealing against the crankshaft and the bearing seat. The at least one part of the bearing seat has a reinforcement arranged in the bearing seat, and a surface of the at least one part of the bearing seat, which surface bears against the bearing, is made from a plastic material.
    Type: Application
    Filed: December 6, 2006
    Publication date: March 4, 2010
    Inventors: Peter Björkman, Mats Granstedt
  • Publication number: 20090290823
    Abstract: The present invention relates to a modular unit for example for an internal combustion engine, having a shaft and having at least one further component, wherein the shaft is provided with bearing pins for mounting it in corresponding bearing bores provided in the at least one component. According to the invention, the surface of least one bearing pin has a sliding layer, with the surface of each bearing bore being in direct contact with the sliding layer of the associated bearing pin. The present invention also relates to a shaft and a component for a modular unit of the type. The shaft according to the invention can, for example, be a crankshaft or a camshaft.
    Type: Application
    Filed: July 18, 2006
    Publication date: November 26, 2009
    Inventor: Wolfgang Issler
  • Publication number: 20090041398
    Abstract: An internal combustion engine varies a compression ratio according to a rotational displacement of a control shaft which is connected to a crankshaft via links. A crankshaft bearing cap supporting the crankshaft in association with a cylinder block is fixed to the cylinder block by a first pair of joint bolts. A control shaft bearing cap which supports the control shaft is fixed to the crankshaft bearing cap by a second pair of joint bolts. A first joint bolt of the first pair of joint bolts, which is nearer to the control shaft, is disposed between the axes of the second pair of joint bolts. The supporting structure of the crankshaft is thereby enhanced.
    Type: Application
    Filed: July 22, 2008
    Publication date: February 12, 2009
    Inventors: Yoshiaki Tanaka, Naoki Takahashi, Masayuki Tomita
  • Publication number: 20090028482
    Abstract: A split bearing which is divided in two is formed of a rolling bearing, and its outer ring is provided with ribs at both side parts thereof in an axial direction. An integrating mechanism is provided at a position within a range in the axial direction where this rib is formed. The integrating mechanism include a concave groove in an annular shape which is formed on a side surface of the rib, and a C-shaped ring is engaged with this concave groove, whereby upper and lower split outer ring pieces of the divided outer ring are integrated into a preassembled state.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Applicant: JTEKT CORPORATION
    Inventors: Takashi Iwata, Yoshitaka Waseda
  • Patent number: 7384196
    Abstract: The invention relates to a bearing cover (1) for a crankshaft bearing of an internal combustion engine comprising a bearing shell (2), two screw columns (3,3?), which are located on both sides of the bearing shell (2) and provided for mounting on a bearing block, and comprising a reinforcement (4) of the bearing shell (2) extending between both screw columns (3,3?). The aim of the invention is to optimize a bearing cover (1) of the aforementioned type with regard to its shape whereby attaining a high level of stability with a low weight. To this end, the reinforcement (4) is comprised of two braces (6,6?), which extend diagonally from the area of the upper ends (5,5?) of the screw columns (3,3?) to the bearing shell (2) and which have an essentially constant cross-section over the length thereof, and comprised of a rib (7) extending on the upper side of the bearing shell (2) from one brace (6) to the other (6?).
    Type: Grant
    Filed: October 5, 2002
    Date of Patent: June 10, 2008
    Assignee: Audi AG
    Inventors: Thomas Binder, Tobias Markle
  • Patent number: 7314315
    Abstract: Improved serviceability of cold metal cutting machines is accomplished in a modified gearbox structure enabling several annular components that are conventionally attached by press-fit to be attached instead by slide-fit for easy removal and replacement, eliminating hammering and/or heating required conventionally to release press-fit components. Press-fitting of a motor shaft coupling is eliminated by introduction of clamping slide-fit structure. Press-fits of two thrust bearings to the housing are eliminated by introduction of slide-fit adaptors. Instead of the conventional practice of making the saw rotor integral with the low speed shaft, a separate saw rotor bolted to the shaft enables easy replacement of the oil seal.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: January 1, 2008
    Inventor: Ashot Salvaryan
  • Patent number: 7217035
    Abstract: The invention relates to a connecting rod-bearing combination comprising a bearing for a small connecting rod eye of a connecting rod which serves to receive a piston pin that supports a piston. The invention also relates to a method for producing a connecting rod-bearing combination of the aforementioned type. The aim of the invention is to be able to exert an influence on the connecting rod-piston combination whereby enabling a fine tuning of the oscillating masses. To this end, the invention provides a connecting rod-bearing combination, which is post-machined in the area of the small connecting rod eye during which material is removed form a mass that corresponds to the difference between the oscillating mass of the connecting rod-bearing combination and a stipulated oscillating mass.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: May 15, 2007
    Assignee: Federal-Mogul Wiesbaden GmbH & Co. KG
    Inventor: Philippe Damour
  • Patent number: 7089903
    Abstract: In an internal combustion engine including a valve actuating mechanism, a vibration control member made of vibration control alloy is interposed in a path of vibration transmission between a camshaft and a cylinder head. The vibration control alloy has a vibration isolation capability comparable to that of rubber, but provides a durability and a resistance to degradation comparable to those of metal and alloy that are typically used in internal combustion engines. Therefore, a desired vibration control can be achieved while ensuring a required reliability, durability and resistance to degradation. The present invention is particularly useful when the valve actuating mechanism is provided with a variable lift, variable timing or variable compression mechanism because such a variable mechanism increases the stress to the engine, and tends to cause more vibrations than a more conventional non-variable valve actuating mechanism.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: August 15, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Noriaki Fujii, Akiyuki Yonekawa, Katsunori Nakamura, Keiko Yoshida, Masaki Nagakura, Tomoya Fujimoto
  • Patent number: 6926444
    Abstract: A main bearing cap (20) for an internal combustion engine consists of an aluminum alloy with an iron alloy core (10). The cap has a supporting surface (22) for a bearing shell. The iron alloy core has a central portion (13) with two spaced apart through-channels (15) filled with an aluminum alloy (24) forming a coherent mass with an aluminum layer (23) the outer limiting surface of which forms the supporting surface (22).
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: August 9, 2005
    Assignee: Ford Global Technologies, LLC
    Inventor: Staffan Rengmyr
  • Publication number: 20040264822
    Abstract: The invention relates to a bearing cover (1) for a crankshaft bearing of an internal combustion engine comprising a bearing shell (2), two screw columns (3,3′), which are located on both sides of the bearing shell (2) and provided for mounting on a bearing block, and comprising a reinforcement (4) of the bearing shell (2) extending between both screw columns (3,3′). The aim of the invention is to optimize a bearing cover (1) of the aforementioned type with regard to its shape whereby attaining a high level of stability with a low weight. To this end, the reinforcement (4) is comprised of two braces (6,6′), which extend diagonally from the area of the upper ends (5,5′) of the screw columns (3,3′) to the bearing shell (2) and which have an essentially constant cross-section over the length thereof, and comprised of a rib (7) extending on the upper side of the bearing shell (2) from one brace (6) to the other (6′).
    Type: Application
    Filed: April 6, 2004
    Publication date: December 30, 2004
    Inventors: Thomas Binder, Tobias Markle
  • Publication number: 20040136627
    Abstract: The invention relates to a collar bearing split shell (1′, 1″), comprising a bearing shell (2, 2′, 2″) and two thrust washers (3, 3a′, 3b′, 3c′, 3d′) which are located on said bearing shell (2, 2′, 2″). The invention also relates to a collar bearing (1) comprising two collar bearing split shells (1′, 1″), each of which has a bearing shell (2, 2′, 2″), at least one bearing shell (2, 2′, 2″) being provided with two thrust washers (3, 3a′, 3b′, 3c′, 3d′) located on said bearing shell (2, 2′, 2″). The invention also relates to a thrust washer (3a′) for a collar bearing split shell (1′). The aim of the invention is to provide a collar bearing (1) which ensures that the two collar bearing split shells (1′, 1″) of a collar bearing (1) are essentially flush with each other when installed.
    Type: Application
    Filed: February 9, 2004
    Publication date: July 15, 2004
    Inventor: Hans-Jurgen Klier
  • Patent number: 6761484
    Abstract: The invention relates to a crankshaft bearing for a motor vehicle, in which a crankshaft 1 produced from ADI (austempered ductile iron, DIN EN 1564) is supported on an engine block 2 produced from aluminum without the interposition of other components. There is very little difference between the thermal expansion coefficients between ADI and aluminum materials, ensuring that the bearing operates reliably even when there are fluctuations in temperature.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: July 13, 2004
    Assignee: Ford Global Technologies, LLC
    Inventor: Kai Martin Mayer
  • Publication number: 20040126042
    Abstract: The invention relates to a connecting rod bearing shell or bushing for internal combustion engines or to a main bearing shell for crankshaft mounting in internal combustion engines, made of a sliding bearing composite material having a metal, preferably steel support layer and a metal sliding layer applied thereto. The sliding bearing composite material is suitable for all applications cited and the sliding layer is made up of a copper zinc alloy with 10-25 wt. % Zn. 1-3 wt. % Mn. 1-3 wt. % Ni. 2-6 wt. % Fe: the remainder being copper, and impurity elements, respectively accounting for a maximum of 0.1%, corresponding to a maximum overall sum of 1 wt. % and the sliding layer is exclusively crystallised in the &agr;-phase.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 1, 2004
    Inventor: Werner Schubert
  • Publication number: 20010033703
    Abstract: A combination of a bearing and a housing for the bearing is described, the combination comprising two substantially semi-cylindrical half bearings each retained in a corresponding housing part about a joint face split-line wherein the housing has at least one locking plate inserted in said joint face split-line, the at least one locking plate extending over the whole of the joint face area and extending radially inwardly to lie between opposed joint faces of the two bearing halves, at least one of the two bearing halves having a recess at the joint face to receive a projection on the locking plate.
    Type: Application
    Filed: April 12, 2001
    Publication date: October 25, 2001
    Applicant: Dana Corporation
    Inventor: John William Martin
  • Patent number: 6280091
    Abstract: A combination of a bearing and a housing for the bearing is described, the bearing comprising two substantially semi-cylindrical half bearings each retained in a corresponding housing part about a joint face split-line wherein the housing has at least one circumferential locking plate inserted in said joint face split-line, said at least one circumferential locking plate extending radially inwardly to lie between opposed joint faces of the two bearing halves.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: August 28, 2001
    Assignee: Dana Corporation
    Inventors: John William Martin, Allen Angus Graham
  • Patent number: 6214774
    Abstract: A grease for a bearing of a fan comprises a base oil selected from a various kinds of silicone oils having a viscosity of 30 to 500 mm2/s at 40 degree-C. and a viscosity of 30,000 mm2/s or less at −30 degree-C., and a diurea compound, as a thickening agent, at the compounding ratio of 2 to 30%-wt. The urea compound has a general formula of: R1—NHCONH—R2—NHCONH—R3 wherein R2 indicates a tolylene group, a diphenylmethan group or a dimethylbiphenylene group, and R1 and R3 respectively indicate a straight chain saturated alkyl group having the number of carbon atoms of 6 to 18, and an alicyclic group, and wherein the ratio of the straight chain saturated alkyl group to the alicyclic group is within a range of 5 to 95 mol-% to 95 to 5%-mol. The grease maintains its properties suitable for use in a fan, and effectively restrict or prevent generation of hoot sound, while providing satisfactory durability and cost-effctiveness.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: April 10, 2001
    Assignee: NTN Corporation
    Inventors: Seiichi Nozaki, Takahiro Koremoto, Kazuhiro Matsumoto, Yosiki Yamaguchi
  • Patent number: 6120189
    Abstract: A wrist pin is provided with a plurality of offset cylindrical segments which are centered on one of two parallel axes. The segments are of reducing diameter in going from one end to the other and the reduction in diameter between segments is at least equal to their offset.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: September 19, 2000
    Assignee: Carrier Corporation
    Inventors: Wayne P. Beagle, John F. Booker
  • Patent number: 6070562
    Abstract: A cylinder block for a multi-cylinder internal combustion engine with a multi-bearing crankshaft and a water jacket surrounding the cylinders. The outer wall of the water jacket extends downwards approximately into a parting plane of the crankshaft bearings. A base frame rests against and is connected to a contact surface formed by a circumferential free edge of the water jacket outer wall. The crankshaft bearings are arranged on the base frame and detachable bearing caps are arranged and fastened by screws on the side of the base frame facing the cylinders.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: June 6, 2000
    Assignee: Eisenwerk Bruehl GmbH
    Inventor: Nico Johan Van Bezeij
  • Patent number: 6065878
    Abstract: In a slide bearing attached onto a bearing mounting surface including at least one of recess and hole facing to the slide bearing, a bearing surface faces to a counter member to be borne movably by the slide bearing, a reverse surface contacts with the bearing mounting surface, and a relief surface is arranged adjacent to the at least one of recess and hole in a slide bearing thickness direction and faces to the counter member with a relatively large clearance between the relief surface and the counter member in comparison with a clearance between the bearing surface and the counter member.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: May 23, 2000
    Assignee: Daido Metal Company Ltd.
    Inventors: Akira Ono, Koichi Yamamoto, Takayuki Shibayama
  • Patent number: 5788380
    Abstract: In order to take account of dimensional variations in crankcases and connecting rods, the lower bearing shell (9) in the unmounted state is formed such that the outer contour is in the shape of an arc having a radius r.sub.a and the inner contour has the shape of a semi-ellipse having semi-axes a.sub.i and b.sub.i. The bearing semi-axis a.sub.i passes through the vertex (19) of the lower bearing shell (9). When the bearing is mounted, the contour of the upper bearing shell (8) remains unchanged while the lower bearing shell (9) is slightly deformed such that its outer contour assumes the shape of a semi-ellipse having semi-axes a.sub.a and b.sub.a. The short semi-axis b.sub.a passes through the vertex (19) of the lower bearing shell (9).
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: August 4, 1998
    Assignee: Glyco-Metall-Werke Glyco B.V. & Co. KG
    Inventors: Fritz Niegel, Hjalmar Weiland
  • Patent number: 5711614
    Abstract: The crankshaft bearing of a multicylinder internal combustion engine has an upper and a lower bearing part, as well as upper and lower bearing brackets with bearing bores connected therewith, in which brackets the main bearing pins of a crankshaft are mounted. The main bearing pins of the crankshaft are supplied with lubricant through oil grooves in the bearing bores. In order to guide the oil escaping from the bearing locations, which oil is flung-off by the rotating crankshaft cheeks, oil grooves are provided on the lateral surfaces of the bearing brackets. The groves are open on their radial interiors and drain downward in the installed position. This prevents severe foaming of the oil, since the oil flung-off the crankshaft can be captured directly and guided. The residence time of the oil in the crank chamber is reduced so that the oil flows more rapidly back into the oil pan and churning losses are reduced.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 27, 1998
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Johannes Wuest, Dieter Nowak, Herbert Ampferer, Michael Muddemann
  • Patent number: 5564837
    Abstract: A main bearing structure for an internal combustion engine includes a cylinder block with main bearing bulkheads which are bored for receiving cylindrical alignment elements carried in a main bearing cap assembly. The cylindrical alignment elements and the bores formed in the cylinder block are not concentric, with the result that a majority of the cylindrical alignment elements extending into the cylinder block are in interference fit with the cylinder block itself.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: October 15, 1996
    Assignee: Ford Motor Company
    Inventors: Craig A. Putnam, Gary D. Liimatta, Bradford R. Battey