Particular Connecting Rod Patents (Class 123/197.3)
  • Patent number: 10808607
    Abstract: An energy storage device is provided for a combustion chamber of an internal combustion engine. The energy storage device includes first and second end connectors connected to respective ones of a piston and crankshaft, and a flexible connection rod portion rotatably connected with the first and second end connectors. The flexible connection rod portion elastically buckles above a predetermined cylinder pressure threshold to store combustion energy and provide a more constant pressure combustion process.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 20, 2020
    Assignee: Cummins Inc.
    Inventors: John M. Antonevich, Reid Irish, Stephen D. Cofer, Jr., Kent H. Clark, Garrett Blum, Michael Kosinski, Beth Wagner, Mark Gray
  • Patent number: 10690177
    Abstract: A connecting rod for a variable compression internal combustion engine, the connecting rod including a crank bearing eye for connecting the connecting rod with a crankshaft of the internal combustion engine; a connecting rod bearing eye for connecting the connecting rod with a cylinder piston of the internal combustion engine; an eccentrical element adjustment arrangement for adjusting an effective connecting rod length, wherein the eccentrical element adjustment arrangement includes an eccentrical element that cooperates with an eccentrical element lever and that is connected torque proof with the eccentrical element lever, wherein a wrist pin of the cylinder piston is receivable in the eccentrical element, wherein the eccentrical element adjustment arrangement includes two cylinders with a respective piston that is supported in a cylinder bore and connected with a respective support rod, wherein the eccentrical element lever includes one or plural eccentrical element lever segments.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 23, 2020
    Assignee: ECO Holding 1 GmbH
    Inventors: David Huber, Stefanie Hutzelmann, Dietmar Schulze
  • Patent number: 10598088
    Abstract: A switch valve for controlling a hydraulic fluid flow of a connecting rod for an internal combustion engine with variable compression with an eccentrical element adjustment arrangement for adjusting an effective connecting rod length, the eccentrical element adjustment arrangement including a first cylinder including a first hydraulic chamber; a second cylinder including a second hydraulic chamber, wherein the first cylinder includes a first inlet for feeding hydraulic fluid into the first cylinder from a supply and the second cylinder includes a second inlet for feeding hydraulic fluid into the second cylinder from the supply, wherein the first cylinder includes a first drain for draining the hydraulic fluid from the first cylinder and the second cylinder includes a second drain for draining the hydraulic fluid from the second cylinder, wherein the switch valve includes a step piston which is displaceable into a first switching position or a second switching position.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 24, 2020
    Assignee: ECO Holding 1 GmbH
    Inventors: Alexander Mudra, Wolfgang Rupp
  • Patent number: 10434611
    Abstract: A tool having a relatively ductile working end for engaging workpieces and a relatively hard non-working portion for driving the tool is disclosed, and a process for making same. The tool is formed with the material in a first state, such as by cold-working, and then only the non-working portion is heat treated to a second state. The working end is thus maintained in the ductile state while the non-working portion is hardened, thus imparting different materials performance characteristics to working end and non-working portion.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 8, 2019
    Assignee: Snap-on Incorporated
    Inventor: Daniel M. Eggert
  • Patent number: 10309448
    Abstract: A pivoting bearing is provided for two connecting rods in a reciprocating piston of an internal combustion engine having two crankshafts which are driven via the reciprocating piston and the connecting rods. The pivoting bearing is received by piston bores of the piston and has gudgeon pin bores for mounting gudgeon pins for gudgeon pin eyes of the connecting rods. The pivoting bearing has radial bearing regions which are provided with the pin bores, are arranged on both sides of a center longitudinal axis of the reciprocating pistons, and delimit the gudgeon pin eyes in a manner which forms an intermediate space. To optimize the pivoting bearing, the bearing regions of the pivoting bearing are configured as cylinder bodies with a cup-like cross section, of which each cylinder body has a base wall and a bearing ring shell.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: June 4, 2019
    Assignee: Neander Motors AG
    Inventor: Claus Bruestle
  • Patent number: 10240559
    Abstract: A piston arrangement comprising: a piston, a first chamber, a second chamber and a power transfer assembly; wherein the piston comprises a first head movable within the first chamber and a second head movable within the second chamber; wherein, in operation, the piston follows a linear path in reciprocating motion along a first axis; wherein the power transfer assembly comprises a shaft rotatably coupled to a shuttle bearing and arranged to convert the reciprocating motion of the piston to rotary motion of the shaft; wherein the shuttle bearing moves relative to the piston in reciprocating motion along a second axis substantially transverse to the first axis; and wherein the shuttle bearing is coupled to the piston via a non-planar bearing surface thereby allowing rotation of the shuttle bearing.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: March 26, 2019
    Assignee: Joost Engines Ltd.
    Inventor: Oliver Jukes
  • Patent number: 10161327
    Abstract: An engine system for a vehicle may include an engine including a plurality of cylinders connected to a crankshaft, a Cylinder Deactivation (CDA) apparatus provided to at least one cylinder among the plurality of cylinders of the engine, a first flywheel mounted on the crankshaft, a second flywheel having a rotation center formed eccentrically with respect to the crankshaft by being disposed at a position corresponding to the cylinder including the CDA apparatus, and a clutch provided to the crankshaft to selectively transmit a torque of the crankshaft to the second flywheel during operation of the CDA apparatus.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 25, 2018
    Assignee: Hyundai Motor Company
    Inventor: Kyoungchan Han
  • Patent number: 10156253
    Abstract: A engine connecting includes a large diameter end portion mounted to a crank of a crankshaft of an engine to be rotatable, a small diameter end portion into which a piston pin is inserted and which supports the piston pin to be rotatable, and a connecting portion connecting the large diameter end portion and the small diameter end portion at a longitudinal end portions thereof. The connecting portion has a plate-shape widened in a wide width direction thereof to be perpendicular to a center axis of the crank shaft, the connecting portion is provided with four vertical reinforcing portions projecting in four directions so as to extend in a longitudinal direction of the connecting rod from the small diameter end portion to the large diameter end portion.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 18, 2018
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Takashi Nishihara, Yuki Tsukamoto
  • Patent number: 10087980
    Abstract: A connecting rod (10) has a big end bearing eye (11) for attachment to a crankshaft and a small end bearing eye (12) for attachment to a piston of a cylinder. An eccentric adjusting device (13) adjusts an effective connecting rod length. The eccentric adjusting device (13) has eccentric rods (15, 16) that engage on an eccentric lever (14) of the eccentric adjusting device (13) so that, in the region of each eccentric rod (15, 16), a connecting pin (36) extends through apertures in the eccentric lever (14) and in the respective eccentric rod (15, 16). The aperture (37) in the respective eccentric rod (15, 16), through which the respective connecting pin (36) extends, and/or a section of the respective connecting pin (36) that extends through the aperture (37) in the respective eccentric rod (15, 16), has/have arched contours, at least in some section or sections.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: October 2, 2018
    Assignee: Dr. Ing. H.c.F. Porsche Aktiengesellschaft
    Inventor: Michael Paul
  • Patent number: 10082073
    Abstract: A variable length connecting rod includes a connecting rod body, an eccentric member, a first piston mechanism, a second piston mechanism and a flow-direction switching mechanism. The eccentric member, the first piston member, the second piston member and the flow-direction switching mechanism are provided in the connecting rod body. The first piston mechanism and the second piston mechanism are configured to pivot the eccentric member. The connecting rod body has a control oil passage that communicates with a first opening of the connecting rod and the flow-direction switching mechanism. The flow-direction switching mechanism is switched between the first state and the second state by switching pins. The switching pins are disposed in the connecting rod body such that directions in which the switching pins are operated are angled with respect to a plane perpendicular to an axis of the first opening.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 25, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuichi Ezaki, Yoshiro Kamo, Akio Kidooka
  • Patent number: 9964031
    Abstract: A hydraulic valve, in particular for shifting an actuation piston in a piston rod for an internal combustion engine with variable compression, the piston rod including a valve housing which includes a first operating connection and a second operating connection and a supply connection which is loadable with a hydraulic pressure of a hydraulic fluid, wherein a piston that is movably arranged in the valve housing is movable in a linear manner against a force of a preloaded spring, wherein the operating connections and the supply connection are sealable relative to each other and against an ambient atmosphere by seal elements upon correct installation in a valve receiving bore hole of the connecting rod, and wherein the seal elements are applicable against a wall of the valve receiving bore hole in a sealing manner due to the hydraulic pressure.
    Type: Grant
    Filed: February 28, 2016
    Date of Patent: May 8, 2018
    Assignee: Hillte Germany GmbH
    Inventors: Manfred Balling, Stefanie Hutzelmann, Dietmar Schulze, Tobias Matschiner
  • Patent number: 9822701
    Abstract: A system and method for providing a variable compression ratio internal combustion engine is disclosed. The system can include a crankshaft pivotally coupled to a standard engine block using a plurality of pivoting main bearing caps. The system can pivot the main bearing caps, and thus the crankshaft, to increase or decrease the compression ratio of the engine. The system can also include a plurality of actuators to move one end of the main bearing caps. The crankshaft can comprise one or more flexible joints to enable the crankshaft to move, while the output(s) of the crankshaft remain stationary to enable conventional sealing and power take-off. The compression ratio can be varied continuously during use and can be included in an overall engine management system.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: November 21, 2017
    Inventor: Scott Blackstock
  • Patent number: 9670872
    Abstract: An internal combustion engine (1) is designed so that the center axis P of a cylinder (4) is offset relative to a main journal part (2a) of a crankshaft (2). A bearing cap (17) is designed so that the side toward the cylinder center axis from a main bearing part (18) is secured to a bulkhead (7) by two fastening bolts (24a, 24c) while the side away from the cylinder center axis from the main bearing part is secured to the bulkhead by one fastening bolt (24b) and that the bearing cap securing force on the side toward the cylinder center axis from the main bearing part (18) is greater than the bearing cap securing force on the side away from the cylinder center axis.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: June 6, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Hiroaki Hoshikawa
  • Patent number: 9664229
    Abstract: A connecting rod for a device includes a rod having a large end, and a cap attached to the large end. The large end of the rod and the cap cooperate to define a first side surface and a second side surface disposed opposite to each other. The large end of the rod and the cap further define a crankshaft bore that extends along a crank axis between the first side surface and the second side surface. A thrust surface is defined by at least one of the first side surface or the second side surface, and is disposed on a thrust plane. The thrust surface includes at least one recessed region that extends inward away from the thrust plane of the thrust surface. Each of the thrust surfaces include ramps that extend between the recessed regions and the flat regions at the thrust plane of the thrust surface.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 30, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Dale Edward Murrish, Yuchuan Liu, Thomas George Halka
  • Patent number: 9638441
    Abstract: A cryogenic refrigerator includes a Scotch yoke mechanism including a Scotch yoke and a bearing movably engaged with the Scotch yoke, and a displacer caused to reciprocate in a cylinder by the Scotch yoke mechanism, so that a refrigerant gas inside an expansion space formed in the cylinder is expanded by the reciprocation of the displacer to generate cold temperatures. The Scotch yoke includes a concave part at a position corresponding to a top dead center of the displacer.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: May 2, 2017
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Mingyao Xu
  • Patent number: 9476454
    Abstract: The invention relates to a sliding element with a substrate and at least one layer of a sliding layer material applied onto the substrate. The sliding layer material can consist of an antifriction lacquer comprising at least one cross-linkable binder or at least one high-melting thermoplast material or of a material that contains a matrix of at last one high-melting thermoplast material or at least one duroplast material. Said sliding layer material contains Fe2O3 with a preferred fraction of 0.1 to 15 vol. %.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: October 25, 2016
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventors: Achim Adam, Joachim Schluter
  • Patent number: 9464570
    Abstract: A crank drive has a frame, which may be formed in particular by a housing, a rocker fixed on the frame, a crank that is fixed on the frame and which forms the drive output, and a coupler which connects the rocker and the crank. The coupler is articulately connected in each case to the crank and to an end, which is situated opposite the positionally fixed mounting, of the rocker. In order to drive the crank, a first cylinder is provided which has a movably mounted piston. The piston and the rocker are articulately connected to one another via a push rod such that the axial movement of the piston sets the rocker in an oscillating swinging motion. The rocker has a section that is remote from the fixed mounting of the rocker and which is inclined by a fixed angle towards the coupler.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: October 11, 2016
    Inventor: Konrad Heimanns
  • Patent number: 9316251
    Abstract: A clip-fastened raceway for a variable compression ratio engine includes: at least one curved segment whose outer surface cooperates with a raceway housed in the transmission member or in the control member of the variable compression ratio engine and whose inner surface is maintained in contact with a curved outer surface housed in the toothed wheel of the engine; at least one clip, housed in at least one of the ends of the curved segment and fastened to one or the other of the ends of the curved outer surface housed in the toothed wheel and hooking onto a hook or protrusion which the wheel includes in the vicinity of the end of its curved outer surface, the hook or protrusion being complementary to that of the clip so as to be able to cooperate with the latter.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 19, 2016
    Assignees: MCE-5 DEVELOPMENT
    Inventors: Sylvain Bigot, Philippe Dury
  • Patent number: 9297303
    Abstract: A connecting rod for internal combustion engines and the like has a rod, an upper connecting rod part, and a lower connecting rod part the rod is composed of at least two parts including a left part, as considered in direction of rotation of a crankshaft clockwise, having a straight shape and connected directly to the upper connecting rod part and to the lower connecting rod part, and a right preferably bent part connected directly to the lower connecting rod part and to the upper connecting rod part by an intermediate part.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: March 29, 2016
    Inventor: Yakiv Cherkasky
  • Publication number: 20150122213
    Abstract: A crankshaft may include first and second journals having circular cross-sections, and a crankpin, the crankpin extending between first and second crankpin journals. The crankpin may include first, second, and third cams including respective first, second, and third cam profiles, wherein the first, second, and third cam profiles differ from one another. At least one of the first, second, and third cam profiles may be configured to affect the stroke of a connecting rod coupled to the crankpin. A connecting rod may include first, second, and third followers including respective first, second, and third follower surfaces, wherein the first and second follower surfaces differ from one another. An internal combustion engine may include a crankshaft and a connecting rod configured to provide relative linear movement between a crankpin axis and a proximal end of the connecting rod.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Applicant: Wilkins IP, LLC
    Inventor: LARRY C. WILKINS
  • Patent number: 9021994
    Abstract: A variable compression ratio apparatus includes: a piston defining a combustion chamber, a connecting rod connected to the piston; an eccentric link eccentrically connected to the piston, a swing link connected to the eccentric link so as to rotate the eccentric link, a crankpin to which the connecting rod is connected, and a crank web disposed at both sides of the crankpin and provided with a guide portion for guiding downward motions of the eccentric link and the swing link when the eccentric link and the swing link move downward. Thereby, the downward motions of the eccentric link and the swing link are stabilized.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: May 5, 2015
    Assignee: Hyundai Motor Company
    Inventors: Yoonsik Woo, Jin Kook Kong, Dong Seok Lee, Eun Ho Lee, Soo Hyung Woo
  • Patent number: 8973551
    Abstract: An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 10, 2015
    Assignee: Cummins Inc.
    Inventor: Guangrui Zhu
  • Publication number: 20150059683
    Abstract: An internal combustion engine with adjustable compression ratio with a connecting rod bearing eye for connecting to a piston of the at least one cylinder and an eccentrical element adjustment device for adjusting an effective connecting rod length, and wherein the eccentrical element adjustment device includes an eccentrical element cooperating with an eccentrical element lever and eccentrical element rods engaging the eccentrical element lever, wherein the eccentrical element rods are loaded with a hydraulic pressure that is provided in hydraulic cavities interacting with the eccentrical element rods, wherein the eccentrical element lever includes at least one eccentrical element lever segment, wherein the at least one eccentrical element lever segment is positioned in axial direction of the eccentrical element in front and/or behind the connecting rod bearing eye, and wherein the at least one eccentrical element lever segment is fixated at the eccentrical element.
    Type: Application
    Filed: June 2, 2014
    Publication date: March 5, 2015
    Inventors: Dietmar Schulze, Michael Paul
  • Patent number: 8967097
    Abstract: A mechanism for varying the stroke length of an internal combustion engine during each cycle of operation includes a gear set with a first gear non-rotatably mounted to the engine block and a second gear having teeth formed on an inner surface thereof meshing with the first gear to achieve a uniform mechanical crank arm and a variable cam arm for producing a varying length of piston reciprocation throughout the overall stroke cycle of the engine. The orientation of the crank arm and the cam arm relative to the axis of piston reciprocation is selected for causing the crank arm and the cam arm to cooperatively produce a positive torque on the crankshaft at the top dead center position of the piston. The gear set is also selectively configured and dimensioned to achieve a predetermined ratio of the length of the cam arm to the length of the crank arm.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: March 3, 2015
    Assignee: Lugo Developments, Inc.
    Inventors: Luis Marino Gonzalez Perez, Simon Alfredo Perez Perez, Henrique Jose Perez Perez
  • Publication number: 20150053168
    Abstract: The present invention relates to transmission mechanism for vehicle Internal Combustion (IC) engines, wherein such mechanism improves the efficiency and the power output of internal combustion engines through dividing the conventional connecting rod between the crank shaft and the piston into two parts; a first part and a second part and connecting such parts together by a pin joint, wherein the second part slides through an oscillating rocker that is connected to the engine block by pin joint, and thus adding a degree of freedom to the conventional connecting rod controlled by said oscillating rocker. The mechanism of the present invention can be retrofitted in the existing vehicle combustion engines without the need for any significant change in the design of such engines. The transmission mechanism of the present invention replaces the traditional connecting rod that connects the piston with the crank shaft of the engine.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Inventor: Mohammad Hesham Fayiz Abazid
  • Publication number: 20150053169
    Abstract: The present invention relates to a connecting rod for an internal combustion engine with a big bearing portion for forming a coupling arrangement with a crankshaft and with a small bearing portion for forming a coupling arrangement with a piston, whereas between the big bearing portion and the small bearing potion is arranged a rod shaft. According to the invention the rod shaft features a single piece construction with a first shaft beam and a second shaft bean arranged substantially parallel to the first shaft beam, whereas the shaft beams extend from the big bearing portion to the small bearing portion and feature a certain distance to each other, whereas at least the small bearing portion features an outer dimension which is broader than the median width of the rod shaft and the transition of the rod shaft into the small bearing portion features a concave transition portion.
    Type: Application
    Filed: April 5, 2013
    Publication date: February 26, 2015
    Applicant: THYSSENKRUPP METALURGICA CAMPO LIMPO LTDA.
    Inventors: Luis Antonio Fonseca Galli, Alex de Souza Rodrigues, Almir Atoatte, Rafael Augusto Lima E Silva, Robson Ferreira Da Cruz
  • Patent number: 8960150
    Abstract: A piston arrangement comprising a piston movable within a cylinder and having a stroke with a first end and a second end, wherein the piston is coupled to a crankshaft by a linkage mechanism including a toggle link which is pivotally coupled to the piston and pivotally coupled to a con-rod, wherein the toggle link has a first position corresponding to the first end of the piston stroke, a second position different to the first position also corresponding to the first end of the piston stroke, and an intermediate position between the first and second positions corresponding to the second end of the piston stroke such that the piston completes four strokes for every one revolution of the crankshaft.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 24, 2015
    Assignee: Milladale Limited
    Inventor: Frederick A. Summerlin
  • Publication number: 20150027401
    Abstract: The invention relates to a piston (1) of an internal combustion engine, which piston (1) has a piston head (2) with a ring field (3) and a skirt part which is arranged on the piston head (2), wherein the skirt part has at least two load-bearing skirt-wall sections (4a, 4b), and the load-bearing skirt-wall sections (4a, 4b) are connected to one another via at least two obliquely positioned box walls (5) which are set back with respect to the piston external diameter. In each case one pin boss (9) for receiving a piston pin is arranged in the box wall (5) and one skirt-wall section (4a) forms the pressure side and the other skirt-wall section (4b) forms the counter-pressure side. According to the invention that the inner surface of the pin boss (9), in relation to the piston centre, runs flushly with respect to the surface of the associated box wall (5), and the box wall (5) has a concave profile in the transverse extent with respect to the direction of the pin boss (9).
    Type: Application
    Filed: August 3, 2012
    Publication date: January 29, 2015
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventor: Volker Gniesmer
  • Publication number: 20150013635
    Abstract: An engine combustion system includes a power cylinder and a gear assembly, the piston having respective intake and exhaust valves. The power cylinder includes a connecting rod pivotally attached to a bottom of the piston and extends vertically downwardly in vertical alignment with a gear assembly. A movable rack gear is coupled to the connecting rod and in communication with a rotatably mounted central gear. When an air/fuel mixture is ignited within the power cylinder fuel chamber, the connecting rod is urged downward causing linear movement of the rack gear in operative communication with the rotatably mounted central gear such that the power generated thereby is translated to a vehicle transmission or power train without angular inefficiency of a traditional crankshaft system.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 15, 2015
    Inventor: Mark Brooks
  • Publication number: 20140366834
    Abstract: A length-adjustable connecting rod for a reciprocating-piston engine. At least one first rod part and second rod part are telescopically displaceable relative to and/or into one another. The second rod part forms a guide cylinder and the first rod part forms a piston element which is longitudinally displaceable in the guide cylinder. Between the first and second rod parts is a high-pressure chamber into which at least one first oil duct opens. At least one control valve is arranged in the first oil duct, with an actuator thereof to be displaced into a first position by a spring and into a second position by oil pressure against the force of the spring. To permit adjustment of the compression ratio, a second oil duct formed as a feed duct opens into the high-pressure chamber and in which a check valve is arranged which opens in the direction of the high-pressure chamber.
    Type: Application
    Filed: December 13, 2012
    Publication date: December 18, 2014
    Inventor: Helmut Melde-Tuczai
  • Publication number: 20140366833
    Abstract: A connecting rod of an internal combustion engine, that includes a large bore, and an interior bore surface. The current art uses soft metal bearing surfaces to reduce wear, and friction between the connecting rod inner diameter and the crankshaft journal surface. The soft metal bearing surface is a separate component of the engine. In this invention the large bore end interior diameter is coated with a hard material to reduce, or eliminate wear. The hard material is a metal or metal alloy applied to the inner diameter by a thermal spray method. A relatively soft polymer material can also be applied to the interior diameter surface of the con-rod bore. The relatively softer polymer acts as a first and sometimes a consumable layer, and applied over the thermal sprayed hard layer. The polymer layer is often used in conjunction with the sprayed metal layer.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: Ronald Brock, Viviane Morais, Joachim Wagenblast, David Maloney
  • Publication number: 20140360455
    Abstract: A connecting rod for internal combustion engines and the like has a rod, an upper connecting rod part, and a lower connecting rod part the rod is composed of at least two parts including a left part, as considered in direction of rotation of a crankshaft clockwise, having a straight shape and connected directly to the upper connecting rod part and to the lower connecting rod part, and a right preferably bent part connected directly to the lower connecting rod part and to the upper connecting rod part by an intermediate part.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 11, 2014
    Inventor: Yakiv Cherkasky
  • Patent number: 8904990
    Abstract: A dwell cycle crank configuration for converting reciprocating linear motion to rotary motion includes: a follower, a top roller, a bottom roller, and a body. The top roller has a bottom portion removed. The removed bottom portion of the top roller is adapted to fit the top of the follower. The bottom roller has a top portion removed. The removed top portion of the bottom roller is adapted to fit the bottom of said follower. The top and bottom rollers are positioned within the body where each roller is adapted to rotate for allowing the follower to ride between the rollers within the body in an S-shaped pattern.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: December 9, 2014
    Inventor: W. Daniel Hamby
  • Publication number: 20140331754
    Abstract: A system for determining a health of bearing associated with a connecting rod is provided. The system includes an oil collector placed proximate to the connecting rod and configured to receive an oil cast off from side thrust surfaces of the connecting rod during movement of the connecting rod. The system includes a sensor associated with the oil collector and configured to generate a signal indicative of a temperature of the oil cast off from the side thrust surface of the connecting rod. The system also includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the oil cast off from the side thrust surface of the connecting rod. The controller further determines the health of the bearing as a function of the signal of temperature of oil cast off from side thrust surface of the connecting rod.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Ronald P. Maloney
  • Publication number: 20140331753
    Abstract: A system for determining a health of a bearing associated with a connecting rod is provided. The system includes a sensor associated with the connecting rod and remotely disposed relative to the bearing of the connecting rod. The sensor is configured to generate a signal indicative of a temperature of the bearing. The system includes a controller communicably coupled to the sensor. The controller is configured to receive the signal indicative of the temperature of the bearing. The controller further determines a health of the bearing as a function of the signal of the temperature of the bearing.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 13, 2014
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Wiebrecht, Colin P. Garner, Andrew M. Williams, Michael Gore
  • Publication number: 20140318494
    Abstract: A connecting rod for a device includes a rod having a large end, and a cap attached to the large end. The large end of the rod and the cap cooperate to define a first side surface and a second side surface disposed opposite to each other. The large end of the rod and the cap further define a crankshaft bore that extends along a crank axis between the first side surface and the second side surface. A thrust surface is defined by at least one of the first side surface or the second side surface, and is disposed on a thrust plane. The thrust surface includes at least one recessed region that extends inward away from the thrust plane of the thrust surface. Each of the thrust surfaces include ramps that extend between the recessed regions and the flat regions at the thrust plane of the thrust surface.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dale Edward Murrish, Yuchuan Liu, Thomas George Halka
  • Patent number: 8869769
    Abstract: An internal combustion engine may include a cylinder block defining a cylinder, and a crankshaft defining a crankpin, wherein the crankshaft is rotatably received by the cylinder block and rotates about a longitudinal axis. The internal combustion engine may further include a piston configured to reciprocate within the cylinder, and a connecting rod operably coupled to the piston and the crankpin. The connecting rod may include a first rod element having a first distal end and a first proximate end, wherein the first distal end is operably coupled to the piston. The connecting rod may further include a second rod element having a second distal end operably coupled to the first proximate end of the first rod element, and a second proximate end operably coupled to the crankpin, wherein the first rod element and the second rod element are pivotally coupled to one another.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: October 28, 2014
    Assignee: Wilkins IP, LLC
    Inventor: Larry C. Wilkins
  • Patent number: 8857404
    Abstract: A piston-powered internal explosion engine for providing power output through a rotating crankshaft. The engine includes an engine block having power cylinders for receiving working pistons, bearing means for supporting the crankshaft, and a crankshaft supported within the bearing means having an output end extending outside of the engine block and a plurality of offset power cranks. The engine includes connecting rods operably coupled to the power cranks and configured to transfer power from the working pistons to rotate the crankshaft, and working pistons that are received into the power cylinders and operably coupled to the power cranks. Each working piston has a head end positioned adjacent to a cylinder head to form a compression chamber and is configured to receive power from an explosion of a compressed volume located within the compression chamber, and to transfer the received power to the connecting rods.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: October 14, 2014
    Inventor: Douglas K. Furr
  • Patent number: 8851031
    Abstract: A differential stroke reciprocating internal combustion engine having an engine shaft and a piston configured to reciprocate within a cylinder chamber includes an inner piston part, a piston stem coupled at a first end to said inner piston part, an outer piston part which serves as a carrier for said inner piston part and is connected to said engine shaft, wherein said inner piston part is configured to operate on a cycle different from that of said outer piston part, and a control and linkage assembly coupled to said engine at an anchor point, and said control and linkage assembly pivotally coupled at a second end of said piston stem defining a copy point, wherein said control and linkage assembly guides and defines the movement of said copy point to be substantially aligned with an axis of said cylinder chamber.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: October 7, 2014
    Assignee: Yan Engines, Inc.
    Inventor: Miin Jeng Yan
  • Patent number: 8844494
    Abstract: Reciprocating motion can be converted to rotary motion through a crankshaft and a connecting rod. In a connecting rod that is primarily in tension, two opposing connecting rods can be coupled to a single journal. Two bearing caps are placed over the journal, the bearing caps having fingers that extend away from the bearing cap with the fingers of the two bearing caps being enmeshed. Fingers of each bearing cap are coupled to the connecting rods. The resulting joint is compact and lighter weight with a shorter journal than prior joints.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: September 30, 2014
    Assignee: EcoMotors, Inc.
    Inventors: Adrian Tusinean, Peter Hofbauer
  • Patent number: 8839687
    Abstract: The reciprocating piston mechanism with an extended piston offset is provided. The mechanism is of the type that contains at least one cylinder having a longitudinal axis, at least one piston that has a pivot pin and is slidingly installed in the cylinder, a crankshaft, which is offset at a distance from the longitudinal axis of the cylinder, a rocker arm/lever assembly pivotally mounted on a crankpin of the crankshaft. The mechanism is also provided with a connecting rod that connects the piston to one arm of the rocker arm/lever assembly. The other arm of the rocker arm/lever assembly has a roller that is guided in a confined pathway and works as a fulcrum of the lever and a stabilizer/rudder at the same time.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: September 23, 2014
    Inventor: Michael Inden
  • Patent number: 8820291
    Abstract: A connecting rod including a connecting rod body and a cap attached to the connecting rod body by a plurality of bolts. The connecting rod body includes a shank having a centerline. Two of the bolts are positioned at a first distance from the centerline and two of the bolts are positioned at a second distance from the centerline that is greater than the first distance. The plurality of bolts may be disposed symmetrically about a centroid of a planar face of the connecting rod.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: September 2, 2014
    Assignee: Cummins Intellectual Property, Inc.
    Inventor: Benjamin Dodman
  • Publication number: 20140209054
    Abstract: In a premixed compression self-ignition engine which is compact but capable of exerting a high output, an intermediate portion of a trigonal link is rotatably supported on a crankpin, a large end portion of a connecting rod is connected to one end portion of the trigonal link, and a swing link swingably supported on a fulcrum shaft is connected to another end portion of the trigonal link. The engine includes: an intake port open to a crank chamber; a reed valve mounted in the intake port; a scavenging port configured to guide fresh air from the crank chamber into a cylinder bore in a downward stroke of a piston; an exhaust port provided in a cylinder head and open to a top portion of the cylinder bore; and an exhaust valve configured to be opened before the piston opens the scavenging port in the downward stroke of the piston.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 31, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yasuhiro Shimizu, Sei Watanabe, Yoshikazu Yamada, Toru Kawai
  • Patent number: 8770158
    Abstract: A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations. The radial cam engine can be used in vehicles, such as hybrid vehicles.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: July 8, 2014
    Assignee: Thien Ton Consulting Services Co., Ltd.
    Inventors: Tai Dung Nguyen, Tue Nguyen, Donald James Duncalf
  • Patent number: 8763583
    Abstract: An opposed-piston, opposed-cylinder OPOC engine is disclosed in which the central axis of the two cylinders is collinear. In four-stroke engines, this is possible with a built up crankshaft. Disclosed are connecting rod configurations that are suitable for a two-stroke engine that can be assembled to a unitary crankshaft, including both pullrods in tension and pushrods in compression. The configuration includes pistons arranged symmetrically, but with offset timing of the intake and exhaust pistons. The offset timing leads to a slight imbalance which can be partially overcome by having the center of gravity of the crankshaft offset from the axis of rotation.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: July 1, 2014
    Assignee: EcoMotors, Inc.
    Inventors: Peter Hofbauer, Adrian Tusinean
  • Patent number: 8763584
    Abstract: A connecting rod assembly is disclosed for use with an engine. The connecting rod assembly may include a first connecting rod having a first end configured to pivotally connect to a first piston and a second can with a circular opening configured to receive a throw of a crankshaft. The connecting rod assembly may also include a second connecting rod having a first end configured to pivotally connect to a second piston and a second end with a circular opening configured to receive the throw of the crankshaft. The second connecting rod may have a running surface defining at least two outer lands and at least one inner land disposed between the at least two outer lands that alternately support a load of the second piston. Both the at least one inner and the at least two outer lands may simultaneously support the load of the second piston at a point of highest load on the second piston.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: July 1, 2014
    Assignee: Caterpillar Inc.
    Inventor: Aaron G. Foege
  • Publication number: 20140174400
    Abstract: The disclosure is directed to a connecting rod, The connecting rod may include a first end having a bore configured to receive a piston pin, and a second end having a yoke and a cap removably connected to the yoke at a separation plane. Together, the yoke and the cap may define a bore configured to receive a crankshaft. The connecting rod may also include a shank extending between the first and second ends and being generally symmetrical about a longitudinal plane that may be oriented at an oblique angle with respect to the separation plane. The connecting rod may further include a radial thickness of a shoulder that is greater than a radial thickness of the yoke at the separation plane.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: CATERPILLAR INC.
    Inventors: James Dean Dunbar, Michael Ray Hess, Lucas John Moehling
  • Patent number: 8757125
    Abstract: An engine comprises one or more cylinders, each cylinder comprising a piston, a connecting rod, a crank shaft, and a crankpin, wherein the crankpin further comprises a main crankpin and a crankpin extension, wherein the connecting rod is affixed at one end to the piston and at another end to a first end of the crankpin extension, wherein a second end of the crankpin extension is affixed to a first end of the main crankpin, and wherein a second end of the main crankpin is affixed to the crankshaft.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: June 24, 2014
    Inventor: Chris Karabatsos
  • Patent number: 8757028
    Abstract: A crankshaft has a receiving platform for catching lubricant dropping from a main bearing assembly. The receiving platform has at least one wall disposed thereon. The wall has one point that is the furthest from the rotational axis of the crankshaft. One channel is defined in the platform and has an inlet disposed close to the point of the wall that is furthest from the rotational axis of the crankshaft. The channel has an outlet in the vicinity of a connecting rod bearing assembly, so that lubricant dropped on the receiving platform will flow to the connecting rod bearing assembly.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: June 24, 2014
    Assignee: BRP US Inc.
    Inventors: George Broughton, Andrew Findlay, John Valek, James E. Macier
  • Patent number: 8752523
    Abstract: A piston assembly is disclosed for use with an engine. The piston assembly may include a first and second piston crown and a first and second connecting rod. The first and second connecting rods may each have a first end pivotally connected to the first and second piston crowns, respectively, and a second end with a circular opening configured to receive a throw of a crankshaft. The second connecting rod may have a running surface defining at least two outer lands and at least one inner land disposed between the at least two outer lands that alternately support a load of the second piston crown. The piston assembly may further include a bearing. Both the inner and outer lands may simultaneously support the load of the second piston crown against the bearing at a point of highest load on the second piston crown.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: June 17, 2014
    Assignee: Electro-Motive Diesel, Inc.
    Inventor: Aaron G. Foege