Flanged Cylinder Or Liner Patents (Class 123/41.84)
  • Patent number: 10480499
    Abstract: A crankcase assembly for a reciprocating machine is provided in which a crankcase having at least one cylinder with a wet cylinder liner arranged therein. A cylinder head for charging and discharging pressurized gas is mounted on the crankcase and a cylinder head gasket for preventing leakage of pressurized gas out of the cylinder is arranged between the crankcase and the cylinder head and is running circumferentially spaced from the inner wall of the cylinder liner. A circumferential coolant channel is formed between the inner crankcase wall and an outer wall of the cylinder liner, wherein a lower sealing means is arranged between the inner crankcase wall and the cylinder liner on the crankshaft side of the coolant channel for preventing leakage of coolant fluid. An upper sealing means is arranged between the inner crankcase wall and the cylinder liner on the cylinder head side of the coolant channel for preventing leakage of coolant fluid.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: November 19, 2019
    Assignees: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH, Bendix Commercial Vehicle Systems LLC
    Inventors: Gilles Hebrard, Jean-Baptiste Marescot, Joerg Mellar, Thomas Weinhold, Thomas Franz, Jeffrey Geither, Edward Hoban, Justin Huffman, Nicholas Petek
  • Patent number: 10393059
    Abstract: A method of forming an engine is provided. A liner is cast with an outer surface with a first texture extending circumferentially from a first end to a second end of the liner. A section of the outer surface of the liner is machined to provide a second texture extending circumferentially about the liner and spaced apart from the first end, wherein the second texture has a lower specific surface area than the first texture. An engine and a cylinder liner for the engine are provided. The liner has first and second ends with an outer surface extending therebetween. An outer surface of the liner has axial sections defining different textures to form material interfaces with the block with different thermal conductivities thereacross.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 27, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Prasad Kamat, Jonathan Robert Burns, Daryl Gene Self, Bryan McKeough
  • Patent number: 10107228
    Abstract: Various embodiments of the invention relate to an apparatus and method for assembling a cylinder for an internal combustion engine. The cylinder includes a cylinder liner with a liner wall having an outer diameter and a flange extending radially outward from the liner wall at a superior end of the liner wall. The flange includes a fillet region adjacent to the liner wall having an inferior surface. The inferior surface has a contour defined at least partially by a non-circular profile. The contour defines a minimum diameter that is greater than or equal to an outer diameter of the liner wall. The non-circular profile is optionally defined by a slanted ellipse.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: October 23, 2018
    Assignee: CUMMINS INC.
    Inventors: Priyesh Sharma, Neal R. Phelps, Jameson L. Smith, Gajanan B. Nirwal, Kevin A. Brittain
  • Patent number: 9803583
    Abstract: A robust engine assembly having reduced weight and efficient cooling, without an increase in fuel consumption or carbon dioxide emissions, is provided. The engine assembly includes a double-wall cylinder liner clamped between a cylinder head and a crankcase. A manifold is disposed along a portion of the cylinder liner and includes fluid ports aligned with fluid ports of the cylinder liner to convey cooling fluid to a cooling chamber located between the walls of the cylinder liner. For example, the manifold can be a low-loss hydraulic manifold cast integral with the crankcase. Tie rods connect the cylinder head to the crankcase to clamp the cylinder liner in position. Alternatively, the tie rods can be connected to a main bearing cradle located beneath the crankcase. No attachment features extend into the walls of the cylinder liner, which is especially advantageous when the cylinder liner is formed of aluminum.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: October 31, 2017
    Assignee: Federal-Mogul LLC
    Inventor: Miguel Azevedo
  • Patent number: 9593639
    Abstract: A cylinder liner is disclosed for use with an engine. The cylinder liner may have a hollow generally cylindrical body with a top end and a bottom end, and a flange extending radially outward at the top end of the hollow generally cylindrical body. The cylinder liner may also have a seal end stop formed on an outer annular surface of the hollow generally cylindrical body an axial distance away from the flange, and an annular groove formed within the outer annular surface of the hollow generally cylindrical body at a location between the end stop and the bottom end.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: March 14, 2017
    Assignee: Caterpillar Inc.
    Inventor: Christopher Lee Batta
  • Patent number: 9482178
    Abstract: A cylinder liner for an engine includes a cylindrical wall having a radially internal surface and a radially external surface opposite the radially internal surface, the cylindrical wall defining a longitudinal axis therethrough, the radially external surface including a sealing surface and an undercut surface adjacent to the sealing surface, the sealing surface at least partly facing away from the longitudinal axis. The undercut surface includes a first surface and a second surface, the first surface at least partly facing the longitudinal axis, and the second surface at least partly facing away from the longitudinal axis.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: November 1, 2016
    Assignee: Caterpillar Inc.
    Inventor: Christopher Batta
  • Patent number: 9427801
    Abstract: Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing the same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on the external surface thereof; and the protrusions each contain a pillar section extending from the external surface, and a head section formed at the end of the pillar section.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: August 30, 2016
    Assignee: MORESCO CORPORATION
    Inventors: Hiroshi Yamagata, Hidetaka Shima
  • Patent number: 9416749
    Abstract: An engine is provided. The engine includes a thermo-molded composite cylinder block including a front engine cover attachment interface and a transmission attachment interface. The engine further includes a cylinder liner comprising a different material than a composite cylinder block and integrally molded with the composite cylinder block, the cylinder liner defining a portion of a boundary of a cylinder and including a top deck at least partially extending across a water jacket cavity surrounding the cylinder.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: August 16, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Clifford E. Maki, Rick L. Williams
  • Patent number: 9217360
    Abstract: This disclosure relates to an improved prechamber device for an internal combustion engine. The prechamber device is positioned adjacent to a combustion chamber. The improved prechamber device is configured to improve removal of heat from the prechamber device, particularly in the area adjacent to the combustion chamber.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: December 22, 2015
    Assignee: Cummins Intellectual Property, Inc.
    Inventor: Patrick M. Pierz
  • Patent number: 8978620
    Abstract: An apparatus includes an internal combustion engine with an engine block and a cylinder liner housing a piston. The engine block includes at least one cylinder cavity and at least one replaceable cylinder liner positioned within the cylinder cavity. At least two press fit areas create an interference fit between the engine block and the replaceable cylinder liner. One press fit area is located proximate to the top surface of the engine block and the other press fit area is located in the engine block at the opposite end of the cylinder liner. A storage volume is formed between the press fit areas by the outer surface of the cylinder liner and the surface of the engine block defining the cylinder cavity.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 17, 2015
    Assignee: Cummins Inc.
    Inventors: Aaron S. Quinton, Jerl J. Purcell, Nathaniel Hassall, Steven M. Chapman, Jim D. Kahlenbeck
  • Patent number: 8844478
    Abstract: A modular unit is composed of a cylinder sleeve and a crankcase for an internal combustion engine. The cylinder sleeve and the crankcase each have a face surface and a cooling water space that at least partly surrounds the cylinder sleeve and is open toward the face surfaces is configured between the cylinder sleeve and the crankcase. A holder ring is provided, which completely covers the cooling water space and at least partially covers the face surface of the cylinder sleeve.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 30, 2014
    Assignee: MAHLE International GmbH
    Inventor: Ingo Roth
  • 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: 8601995
    Abstract: A cylinder liner sealing arrangement for an internal combustion engine including a cylinder block having cylinder bores, a cylinder head, a cylinder liner within each cylinder bore and a circumferential cut-out formed in the upper and outer surfaces of the cylinder liner. A circular sealing ring is positioned in the circumferential cut-out with the sealing ring contacting at least the cylinder block and the cylinder liner to form a coolant seal therebetween. The sealing ring includes a seal enhancing configuration formed on at least an outer circumferential surface of the sealing ring with the seal enhancing configuration including at least one of an arcuate portion of a ā€œDā€ ring seal or a plurality of circumferentially extending ribs.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: December 10, 2013
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: Joseph Worthington, Terry M. Shaw, Dave Genter, Dan E. Richardson, Ian McGiffen, Mark G. Luehrmann, Keith Gunter
  • Publication number: 20130298853
    Abstract: A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventors: Feng Song Liu, Jiongyang Wu, Patrick R. Lee
  • Patent number: 8550041
    Abstract: Integrated, multi-cylinder opposed engine constructions include a unitary support structure to which cylinder liners are removeably mounted and sealed and on which crankshafts are rotatably supported. The engine constructions include a cooled piston with a resiliently deformable joint connecting crown and skirt and a cooled cylinder liner with wipers to manage lubricant in the cylindrical interstice between the cylinder bore and the piston skirts.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: October 8, 2013
    Assignee: Achates Power, Inc.
    Inventors: James U. Lemke, Gordon E. Rado, Michael H. Wahl, Patrick R. Lee, Clark A. Klyza, Eric P. Dion
  • Patent number: 8539916
    Abstract: A height of a spacer which is arranged inside a water jacket formed to surround peripheries of cylinder bores of a cylinder block of an internal combustion engine is made to be lower by a step in an intermediate portion thereof in a cylinder row line direction. Consequently, among end-portion cylinder bores having a lower temperature and being situated at opposite end portions in the cylinder row line direction and intermediate cylinder bores being other than the end-portion cylinder bores and having a higher temperature, a cooling performance of the intermediate cylinder bores is higher than that of the end-portion cylinder bores. Therefore, all the temperatures of the respective cylinder bores can be made uniform. A similar operation effect can be obtained alternatively by making a thickness of the spacer thinner in portions facing the intermediate cylinder bores and thicker in portions facing the end-portion cylinder bores.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: September 24, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takeru Hamakawa, Shigeo Okui, Naoto Kodama, Atsushi Nakajima
  • Patent number: 8539918
    Abstract: Integrated, multi-cylinder opposed engine constructions include a unitary support structure to which cylinder liners are removeably mounted and sealed and on which crankshafts are rotatably supported. The unitary support structure includes cooling manifolds that provide liquid coolant to the cylinder liners. Exhaust and intake manifolds attached to the support structure to serve respective ports in the cylinder liner. The engine constructions may also include certain improvements in the construction of cooled pistons with flexible skirts, and in the construction of cylinders with sealing structures mounted outside of exhaust and inlet ports to control lubricant in the cylindrical interstice between the through bore and the pistons.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 24, 2013
    Assignee: Achates Power, Inc.
    Inventors: James U. Lemke, Gordon E. Rado, Michael H. Wahl, Patrick R. Lee, Eric P. Dion, Jin Dai, Louis F. Medeiros, Tristan M. Burton, Ryan G. MacKenzie, Brendan M. Lenski, Todd R. Rose, Clark A. Klyza
  • Patent number: 8474251
    Abstract: A cylinder head with an integrated exhaust manifold is provided, the integrated exhaust manifold including an exhaust manifold flange. In one example, the cylinder head includes a cooled flange to control exhaust system heat. The cylinder head can improve operation of an integrated cylinder head during at least some operating conditions.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: July 2, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Ted Beyer, Jody Michael Slike, John Christopher Riegger
  • Patent number: 8443768
    Abstract: A cylinder liner for an internal combustion engine and a method of making the same are disclosed. The cylinder liner may generally include a cylindrical body configured to receive a piston assembly. The cylindrical body may further include a main body portion configured for selective engagement with an engine bore, and an upper flange configured to support the cylindrical body within the engine bore. The cylindrical body may also define an undulating cooling gallery adjacent the upper flange. The undulating cooling gallery generally defines a single coolant flow path extending about a perimeter of the cylindrical body.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: May 21, 2013
    Assignee: Mahle International GmbH
    Inventors: Petru M. Berghian, Dan H. Dinu
  • Publication number: 20110168109
    Abstract: A modular unit is composed of a cylinder sleeve and a crankcase for an internal combustion engine. The cylinder sleeve and the crankcase each have a face surface and a cooling water space that at least partly surrounds the cylinder sleeve and is open toward the face surfaces is configured between the cylinder sleeve and the crankcase. A holder ring is provided, which completely covers the cooling water space and at least partially covers the face surface of the cylinder sleeve.
    Type: Application
    Filed: December 17, 2010
    Publication date: July 14, 2011
    Applicant: MAHLE International GmbH
    Inventor: Ingo Roth
  • Patent number: 7753023
    Abstract: A cylinder liner has an outer circumferential surface on which a film is formed. The film functions to form gaps between the cylinder block and the cylinder liner. Alternatively, the film functions to reduce adhesion of the cylinder liner to the cylinder block. The cylinder liner suppresses excessive decreases in the temperature of a cylinder.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: July 13, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshihiro Takami, Kouhei Hori, Takeshi Tsukahara, Noritaka Miyamoto, Masaki Hirano, Yukinori Ohta, Satoshi Yamada, Kouhei Shibata, Nobuyuki Yamashita, Toshihiro Mihara, Giichiro Saito, Masami Horigome, Takashi Sato
  • Patent number: 7726267
    Abstract: A cylinder liner for an internal combustion engine, especially a gasoline motor, in which a piston can move between a lower and an upper dead center in an axial direction K, and the cylinder liner has a thrust collar, by which the cylinder liner can be fixed in a housing of the internal combustion engine, and there is provided a recess at the cylinder head end, in which there is installed an insert ring with a height hR, while the thrust collar of the liner has a height hB which is between 65% and 100% or between 83% and 95% or 100% of the height hR of the insert ring.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: June 1, 2010
    Assignee: Deutz Powersystems GmbH
    Inventor: Diethard Plohberger
  • Patent number: 7721688
    Abstract: An internal combustion engine includes a variable compression ratio mechanism made up of a case-side bearing-forming portion, a block-side bearing-forming portion, and a shaft-shaped drive portion. The case-side bearing-forming portion is formed in an upper portion of a crankcase. The block-side bearing-forming portion extends outward from a lower end portion of an outer wall surface of the cylinder block. The block-side bearing-forming portion is linked to the case-side bearing-forming portion by the shaft-shaped drive portion. Slit-shaped stress reduction groove portions each having an opening in a region between the block-side bearing-forming portion and cylinder bores are formed in a lower surface of the cylinder block. Therefore, even when the block-side bearing-forming portion presses the outer wall surface, the stress reduction groove portions reduce the stress, so that the deformation of the wall surface of each cylinder bore can be restrained.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: May 25, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Eiichi Kamiyama
  • Patent number: 7617805
    Abstract: A cylinder liner for receipt in an internal combustion engine cylinder block having a water cooling jacket surrounding a portion of the cylinder liner and method of construction thereof. The cylinder liner has a wall with an inner surface providing a cylinder bore extending along a central axis for reciprocation of a piston against an axial portion thereof and an outer surface opposite the axial portion. The outer surface has a hardened outer layer of purely martensitic microstructure for direct exposure to fluid in the water cooling jacket.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: November 17, 2009
    Assignee: Federal-Mogul World Wide, Inc.
    Inventor: Eric Highum
  • Patent number: 7392771
    Abstract: A cylinder sleeve for being inserted in a cylinder bore defined in a block body of a cylinder block for an internal combustion engine. The cylinder bore includes a first annular recess and a second annular recess, and projecting walls. The cylinder sleeve comprises a hollow cylindrical body that is inserted into the cylinder block with at least part of an outer circumferential wall thereof adjacent to an inner circumferential wall of the projecting walls of the cylinder block, a larger-diameter portion projecting diametrally outwardly from an upper end of the outer circumferential wall of the hollow cylindrical body, a step disposed on an outer circumferential wall of said larger-diameter portion, by which the larger-diameter portions of adjacent cylinder sleeves are stacked, and a reduced-diameter portion provided by reducing a diameter of an inner circumferential wall of said hollow cylindrical body.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: July 1, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toshihide Sunada, Yasushi Iseda, Masanori Kosugi, Kazumi Nagao
  • Patent number: 7383805
    Abstract: A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block material in a favorable manner. The cylinder liner satisfies the following requirements: (i) the height of projections 1P is in a range between 0.5 mm and 1.0 mm, inclusive; (ii) the number of the projections 1P is in a range between 5 and 60, inclusive, per cm2 on the outer circumferential surface; (iii) the area ratio of regions each encircled by a contour line of a height of 0.4 mm is in a range between 10% and 50%, inclusive; (iv) the area ratio of regions each encircled by a contour line of a height of 0.2 mm is in a range between 20% and 55%, inclusive; (v) the region each encircled by a contour line of the height of 0.4 are independent from each other; and (vi) the area of the regions each encircled by a contour line of the height of 0.4 mm is in a range between 0.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: June 10, 2008
    Assignees: Toyota Jidosha Kabushiki Kaisha, Teikoku Piston Ring Co., Ltd., Teipi Industry Co., Ltd.
    Inventors: Hirofumi Michioka, Toshihiro Takami, Kazunari Takenaka, Takashi Kurauchi, Norihiko Tomioka, Isao Katou, Hiroshi Muraki, Shunya Hattori, Giichiro Saito, Kiyoharu Oizumi
  • Patent number: 7337756
    Abstract: A coolant groove-type internal combustion engine has a cylinder block that includes a frame having at least one longitudinal surface and a lateral member transverse to the longitudinal surface, the lateral member defining a coolant passage therethrough, wherein the lateral member also defines at least one cylinder opening and a groove coolant port extending from the coolant passage to the cylinder opening. A cylinder liner includes a cylindrical member, defining an elongated cylinder bore. The cylinder member has an outer surface that has a diameter that allows the cylindrical member to be fitted into the cylinder opening so as to form a coolant jacket between the outer surface of the cylindrical member and the longitudinal surface. The outer surface of the cylindrical member includes an upper portion that plugs the groove coolant port.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: March 4, 2008
    Assignee: PAI Industries, Inc.
    Inventors: Jan A. Ruble, Navid Yavari
  • Patent number: 7334546
    Abstract: A ductile repair cylinder liner for a diesel engine, the cylinder liner having an additional cooling groove with a parabolic varying cross-section machined into the outer surface of the cylinder liner immediately below the radially extending locating flange for the liner.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 26, 2008
    Assignee: IPD Corporation
    Inventor: Robert Rasmussen
  • Publication number: 20080035081
    Abstract: A coolant groove-type internal combustion engine has a cylinder block that includes a frame having at least one longitudinal surface and a lateral member transverse to the longitudinal surface, the lateral member defining a coolant passage therethrough, wherein the lateral member also defines at least one cylinder opening and a groove coolant port extending from the coolant passage to the cylinder opening. A cylinder liner includes a cylindrical member, defining an elongated cylinder bore. The cylinder member has an outer surface that has a diameter that allows the cylindrical member to be fitted into the cylinder opening so as to form a coolant jacket between the outer surface of the cylindrical member and the longitudinal surface. The outer surface of the cylindrical member includes an upper portion that plugs the groove coolant port.
    Type: Application
    Filed: August 10, 2006
    Publication date: February 14, 2008
    Inventors: Jan A. Ruble, Navid Yavari
  • Patent number: 7322320
    Abstract: A cylinder block including a block with two parts, a cylinder liner portion defining an inner wall of a water jacket and a cylinder block body defining an outer wall of the water jacket. The water jacket, which extends around the cylinders, is defined between the cylinder liner portion and the cylinder block body. A cylinder connector includes rectangular partition walls arranged in the direction cylinder liners are aligned. Each partition wall partitions adjacent cylinder lines and extends vertically downward from the bottom of the cylinder connector.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: January 29, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Minoru Sugano
  • Patent number: 7290506
    Abstract: Particular embodiments of the present invention provide novel fluid-cooled cylinder liners. Preferred liners are annular cylinders containing a plurality of passages, arranged generally parallel to the axis of the cylinders, and integrated between the inner and outer surfaces of the cylinders. Preferably, the integral passages are arranged so that they are typically closer to the outer surface of the liner than the inner surface. Each passage has at least two openings. A passage with two openings on opposite end of the cylinder runs the entire length of the liner, while a passage with a opening at one end of the liner and a second opening along a surface of the liner runs only for a fraction of the liner length. In preferred embodiments, openings on the outer surface of the liner will be arranged in a circle lying on a plane perpendicular to the axis of the cylinder, and near either end of the cylinder; ensuring that each passage traverses the majority of the length of the liner.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: November 6, 2007
    Assignee: Benmaxx, LLC
    Inventors: Charles Benjamin Rau, III, Dallas W. Jolley, Jr.
  • Patent number: 7146939
    Abstract: A wet-style cylinder liner (16) for a diesel engine is provided with a surface texture (28) to combat the effects of cavitation-induced erosion. The surface texture (28) can be formed as a coating (30) of manganese phosphate applied about the outer surface (26) of the cylinder liner (16) within the coolant flow passage (20) of the engine. The manganese phosphate is applied in such a manner that a crystalline structure of 2ā€“8 ?m average grain size, blocky in nature, clearly faceted, with no cauliflower-like formations and a discernable channel network surrounding the crystals is formed. This crystalline structure works with the natural adhesion and surface tension effects within the liquid coolant to create a stagnant fluid layer about the outer surface (26) of the cylinder liner (16). The stagnant fluid layer functions like a self-healing armor plate.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 12, 2006
    Assignee: Federal-Mogul Worldwide, Inc.
    Inventor: Miguel Azevedo
  • Patent number: 6799541
    Abstract: A cylinder sleeve for an internal combustion engine having an engine block and a cylinder head. The cylinder sleeve includes a cylindrical section having a top portion and a bottom portion, and configured to receive a cylinder piston that reciprocates in the block. The top portion is configured to mate with the cylinder head. The cylinder sleeve also includes a flange section adjacent to the top portion of the cylindrical section. The flange section is configured with a coolant groove and at least one coolant hole to provide a passageway for coolant to pass into the coolant groove of the flange section.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: October 5, 2004
    Assignee: Darton International, Inc.
    Inventors: David L. Clinton, Gary L. Cyr, Stephan J. Demirjian
  • Patent number: 6733903
    Abstract: Disclosed are an insert of pour-around die casting, which is incorporated by an aluminum alloy die casting and has an organic film formed on the surface of the insert, wherein the organic film contains a higher fatty acid ester, a petroleum sulfonate and a mineral oil and has a thickness of from 0.5 to 2 &mgr;m, a rust preventive oil used therefor, and a method for incorporating the insert with an aluminum alloy die casting.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: May 11, 2004
    Assignees: Teipi Industry Co., Ltd., Teikoku Piston Ring Co., Ltd.
    Inventors: Takahiro Suzuki, Akinari Nobumoto, Giichiro Saito
  • Patent number: 6729272
    Abstract: Deflecting ribs are provided within a coolant jacket formed in a cylinder head in such a manner as to protrude upwardly from bottom walls for directing the flow of coolant toward exhaust-valve-port side port wall portions The deflecting ribs for deflecting part of the flow of coolant toward the exhaust-valve-port side port wall portions are formed in such a manner as to extend from the intake-valve-port side port wall portions, and gaps are left between the exhaust-valve-port side port wall portions and the deflecting ribs for allowing the coolant to flow along the wall surfaces of the exhaust-valve-port side port wall portions, whereby there is generated no stagnation of the coolant on the wall surfaces of the exhaust-valve-port side port wall portions at the portions where the gaps are formed.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: May 4, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Iizuka, Makoto Suzuki, Kiyoshi Takagi
  • Patent number: 6722320
    Abstract: A cylinder liner for an internal combustion engine provides a method of replacement of spent cylinder liners, wherein the cylinder liner includes a generally cylindrical body having a flange extending radially outwardly defining a shoulder. The shoulder provides a positive stop in an axial direction against a surface within a cylinder block of the engine. The body has an engagement portion adjacent the shoulder. The engagement portion is necked down from the flange and has lower and upper portions providing an interference fit within the cylinder block. The lower and upper portions of the engagement portion are separated from one another by a channel that extends substantially about the circumference of the body. The channel provides a passage for fluid flow between the lower and upper portions to facilitate cooling of the engagement portion.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: April 20, 2004
    Assignee: Federal-Mogul World Wide, Inc.
    Inventors: Anh Ngoc Pham, David Y. Nov
  • Publication number: 20040069253
    Abstract: A cylinder liner for an internal combustion engine provides a method of replacement of spent cylinder liners, wherein the cylinder liner comprises a generally cylindrical body having a flange extending radially outwardly defining a shoulder. The shoulder provides a positive stop in an axial direction against a surface within a cylinder block of the engine. The body has an engagement portion adjacent the shoulder. The engagement portion is necked down from the flange and has lower and upper portions providing an interference fit within the cylinder block that inhibits fluid flow between the lower and upper portions and the cylinder block. The lower and upper portions of the engagement portion are separated from one another by a channel that extends substantially about the circumference of the body. The channel provides a passage for fluid flow between the lower and upper portions to facilitate cooling of the engagement portion.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Applicant: Federal-Mogul World Wide, Inc.
    Inventors: Anh Ngoc Pham, David Y. Nov
  • Patent number: 6675750
    Abstract: The subject invention is a cooling system of an internal combustion engine having a wet-sleeve cylinder liner that improves heat reduction efficiency as compared with traditional cylinder liners. The improved liner has an outer surface with a plurality of peaks and valleys. The peaks and valleys create an increased surface area of the outer surface thereby increasing contact with a cooling medium and more efficiently reducing heat within the engine. The peaks and valleys are positioned along the entire length of the cylinder liner and are generally arcuate in a sinusoidal pattern. The liner also includes an inner surface of the liner that remains generally planar for receiving a piston. Finally, one end of the liner also includes a flange for mating the liner to a counterbore of the engine.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: January 13, 2004
    Assignee: Dana Corporation
    Inventor: Jay Wagner
  • Patent number: 6615791
    Abstract: The present invention relates to a modular internal combustion engine assembly that includes a closed-dome cylinder liner having solenoid actuated intake and exhaust valves supported within the dome portion of the cylinder liner. The engine assembly also includes a crankshaft having a series of discs joined together in a spaced parallel relationship by a plurality of crankpins, that is supported at the lower end of the cylinder block by bushings adapted to receive the crankshaft, such that the crankshaft rotates within the bushings in response to piston power strokes.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 9, 2003
    Inventor: Kaloust P. Sogoian
  • Publication number: 20020170510
    Abstract: Deflecting ribs are provided within a coolant jacket formed in a cylinder head in such a manner as to protrude upwardly from bottom walls for directing the flow of coolant toward exhaust-valve-port side port wall portions The deflecting ribs for deflecting part of the flow of coolant toward the exhaust-valve-port side port wall portions are formed in such a manner as to extend from the intake-valve-port side port wall portions, and gaps are left between the exhaust-valve-port side port wall portions and the deflecting ribs for allowing the coolant to flow along the wall surfaces of the exhaust-valve-port side port wall portions, whereby there is generated no stagnation of the coolant on the wall surfaces of the exhaust-valve-port side port wall portions at the portions where the gaps are formed.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 21, 2002
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Iizuka, Makoto Suzuki, Kiyoshi Takagi
  • Patent number: 6439173
    Abstract: An internal combustion engine includes an engine block having a head seat surface and a cylinder opening extending from the head seat surface into an interior of the engine block, and a cylinder insert residing within the cylinder opening and having an insert upper surface substantially flush with the head seat surface of the engine block. The cylinder insert has a smooth cylindrical inner surface with a longitudinally extending cylindrical axis, and a stepped outer surface formed of three longitudinal regions. The three longitudinal regions include a first longitudinal region adjacent to the insert upper surface and having a first wall thickness, a second longitudinal region remote from the first longitudinal region and having a second wall thickness less than the first wall thickness, and a third longitudinal region intermediate between and continuous with the first longitudinal region and the second longitudinal region.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: August 27, 2002
    Assignee: Advanced Engine Breathing System
    Inventor: Lee Wai Chung
  • Patent number: 6363894
    Abstract: An internal combustion engine including a cylinder block having at least one cylinder bore and a cylinder liner concentrically disposed within the cylinder bore and secured to the cylinder block. The cylinder liner includes a main body portion and an upper margin. A main cooling chamber surrounds a substantial portion of the main body portion of the cylinder liner and has an inlet port and at least one outlet port for circulating a coolant fluid about the main body portion of the cylinder liner. A secondary cooling chamber is located about the circumference of the upper margin of the cylinder liner. The secondary cooling chamber has four inlet ports in fluid communication with the main cooling chamber and disposed space from one another at equidistant points about the circumference of the cylinder liner. Furthermore, the secondary cooling chamber includes four outlet ports providing fluid communication with the outlet port of the main cooling chamber.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: April 2, 2002
    Assignee: Detroit Diesel Corporation
    Inventor: Dick Allen Barkman
  • Patent number: 6357400
    Abstract: The piston sleeve has a radial positioning surface adjacent to the top surface and an axial positioning surface separated from radially positioning surface by a coolant contact surface. A piston bore extending the length of the piston sleeve is machined to form a non-cylindrical bore. The sleeve is compressed by applying force to the top surface and to the axial positioning surface. The piston sleeve is also heated to a normal working temperature. The compression force and the force due to thermal expansion deforms the piston sleeve and changes the non-cylindrical bore into a substantially cylindrical bore.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: March 19, 2002
    Assignee: Federal-Mogul World Wide, Inc.
    Inventors: Tommy J. Bedwell, Carmo Ribeiro
  • Patent number: 6328001
    Abstract: A replaceable cylinder liner for an internal combustion engine. The position of the liner within the block is established by a midstop. An interference fit below the midstop seals the bottom end of a cooling passage that extends around the liner. The top end of the cooling passage is sealed by an o-ring, and when the engine is warmed up by an interference fit also. The top of the cooling passage is close to the top dead center position of the top piston ring, and reduces the temperature of the top piston ring.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: December 11, 2001
    Assignee: Cummins Engine Company, Inc.
    Inventors: Daniel E. Kirtley, Carol L. Corbeels, Andrew P. Perr, Abby J. Dawkins, Kristopher R. Bare
  • Patent number: 6263840
    Abstract: The present invention concerns an engine block (1) of a metal material for a multicylinder internal combustion engine, with a housing (2), in which cylinder boreholes (5) are provided, whereby the outer surfaces of side walls (6) of cylinder boreholes (5) are distanced from the wall (3) of housing (2), so that cooling channels (9) arranged between wall (3) and cylinder boreholes (5) result. It is provided according to the invention that cylinder boreholes (5′) are shortened such that the height (h2) of the shortened cylinder boreholes (5′) is smaller than the height (h1) of the unshortened cylinder boreholes (5). The present invention also concerns a cylinder bushing (10) with a sleeve (11) and a collar (12), whose outer diameter is larger than the outer diameter of sleeve (11).
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 24, 2001
    Inventor: Panagiotis Avramidis
  • Patent number: 6167847
    Abstract: A cylinder liner for a liquid-cooled internal combustion engine, includes a cylinder liner collar which is adjacent to a cylinder head sealing plane and into which is formed at least one circular cooling duct.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: January 2, 2001
    Assignee: AVL List GmbH
    Inventors: Ugur Ergezen, Tuomas Tanska, Helmut Melde-Tuczai