Caterpillar Inc.

Daniel Cavanaugh

Curtis John Graham

Justin Curtis Embrey

Daniel Joseph Sordelet

Kegan Jon Luick

Taylor Douglas Young

Luis Vazquez

Kevin P Reardon

Waylon Scott Walker

Thierry Andre Marchione

M Brad Beardsley

Robert E Sharp

Daniel Herbert Gerke

Robert Louis Brockman

Kristin Ann Schipull

Darryl Hatfield

A pre-chamber for a fuel injector is disclosed. The pre-chamber includes a cylindrical body member extending axially from a first end portion to a second end portion opposite to the first end portion. The pre-chamber further includes a bottom plate located proximal to the first end portion of the cylindrical body member. The pre-chamber also includes a sacrificial member extending axially outwards from the second end portion of the cylindrical body member.

Pre-chamber assembly for fuel injector

A method for remanufacturing or repairing a cylinder head having a bore configured to receive a fuel injector comprises machining a portion of a surface forming the bore to remove imperfections, inserting a repair component into the bore proximate the machined portion of the bore, and spraying material into the bore proximate the machined portion and the repair component, thereby holding the component into place.

Fuel injector bore repair

A prechamber ignition device in an internal combustion engine is provided having a body piece formed of a first type of material and a tip piece formed of a second type of material. A distal end of the body piece has a cladding, which may be of the second type of material, for preventing corrosion of the first type of material from which the body piece is formed.

Prechamber ignition device for internal combustion engine, and method

A laser cladding system includes a laser apparatus, a chamber, and a pump system. The laser apparatus is configured to generate a laser beam. The chamber includes an interior surface that defines a cladding area comprising a sealed volume. The chamber includes a window that is made from a laser-transparent material and is configured to allow the laser beam to pass therethrough into the cladding area. The pump system has a port in communication with the cladding area. The pump system is configured to selectively generate a vacuum pressure within the cladding area sufficient to evacuate gas from within the cladding area out through the port. The laser apparatus includes a laser head from which the laser beam is emitted and a robotic laser motion system configured to selectively move the laser head such that the laser beam moves relative to a reference point within the chamber.

System and method for laser cladding in controlled environment

A method of manufacturing a component is disclosed. The method includes depositing a material on a removable form structure having geometry corresponding to an internal space of the component. The material is deposited on the removable form structure by an additive manufacturing technique. The method includes removing the removable form structure to obtain a pre-machined component, and then machining the pre-machined component to manufacture the component having the internal space.

System and method for manufacturing component

A piston including a piston crown, the piston crown defining a combustion bowl with a bowl base and bottom surface. A failure initiation structure is provided on the bottom surface of the combustion bowl to initiate favorable fracture at predetermined loads. Such favorable fracture may lead to the a separation of a fragment of the bowl base from the combustion bowl when a predetermined load or pressure is exceeded within the combustion bowl.

Piston for an internal combustion engine and method for producing said piston

A prechamber ignition assembly for an internal combustion engine includes a base attached to a remanufactured prechamber ignition device at a base weld interface. The remanufactured prechamber ignition device includes a new tip formed of a tip material, and a root formed of a root material, with a used body formed of a body material disposed therebetween. The new tip is bonded to the used body at a tip weld interface and the root is bonded to the used body at a root weld interface.

Remanufactured prechamber device and method

A method for manufacturing an engine block is disclosed. In embodiments, the method includes forming an expansion hole in a block body of the engine block that encircles an engine block bore at a head face of the engine block. The method also includes placing an insert into the expansion hole, the insert including an insert body. The method further includes placing a reaction material between the insert and the block body. The method yet further includes forming an insert bond layer between the insert and block body using the reaction material. The method still further includes forming an insert bore through the insert body.

Exothermic bonding for cylinder block inserts

A method for repairing a cylinder liner includes: placing a cylinder liner having a first inner diameter and a first outer diameter into a cavity of a confinement, the cavity including a cavity inner diameter that is substantially the same as the first outer diameter of the cylinder liner; heating the cylinder liner to a temperature at which the cylinder liner undergoes plastic deformation, causing the first inner diameter of the cylinder liner to decrease; and cooling the cylinder liner. The cooled cylinder liner has a second inner diameter that is less than the first inner diameter. An apparatus for repairing a cylinder liner includes a confinement having a cavity and a fluid passageway for controlling the temperature of the confinement, and a heating block for heating the cylinder liner when the cylinder liner is inserted into the cavity.

Method and apparatus for repairing cylinder liners

A method for remanufacturing of a flywheel is provided. The flywheel has a damage area thereon. The method includes removing a portion of a material from a face of the flywheel containing the damage area to form a recessed portion, wherein the recessed portion has a ring shaped profile. The method also includes aligning an insert within the recessed portion of the flywheel, wherein the insert is ring shaped and is configured to fit within the recessed portion of the flywheel. The method further includes coupling the insert within the recessed portion of the flywheel.

Method for remanufacturing flywheel

A cylinder liner assembly is disclosed for use with an engine. The cylinder liner assembly may include a liner having a hollow generally cylindrical body extending from a top end to a bottom end along a longitudinal axis, and an internal annular cuff ring groove formed at the top end of the liner. An internal surface of the internal cuff ring groove may include a metal spray coating having a thermal conductivity that is less than a thermal conductivity of a base material of the liner to act as a thermal insulating layer. A cuff ring may be disposed within the internal cuff ring groove at the top end of the liner in contact with the metal spray coating. A seal may be disposed around an outer circumferential surface of the liner approximately in axial alignment with an internal axial end of the internal cuff ring groove.

Cylinder liner assembly having a thermal barrier coating

Cladding and remanufacturing a machine component includes directing cleaning and welding beams split from an incident laser beam toward the machine component, and moving the machine component relative the cleaning and welding beams such that the welding beam trails behind the cleaning beam along a common travel path. A surface of the machine component is decontaminated by the cleaning beam, while a cladding material is melted via the welding beam such that upon solidifying the cladding material forms a coating metallurgically bonded to base material and previously deposited cladding material of the machine component.

Machine component cladding strategy

A method for laser cladding a material onto a surface of a machine component using a laser scanning head with laser scanning optics is disclosed. The method includes forming a molten bead of cladding material by directing a beam with the laser scanning optics over a bead scan on the machine component. The method also includes directing the beam with the laser scanning optics over a secondary scan on the machine component, the secondary scan being offset from the bead scan at a predetermined distance on the machine component.

Laser cladding with a laser scanning head

The present disclosure is related to a cladding composition. The cladding composition may include cladding powder particles and flux particles. The flux particles may have an average particle size of less than about 40 &#x3bc;m, and more than about 50% of the flux particles may adhere to the surfaces of the cladding powder particles.

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Chillicothe, IL, United States of America

Daniel Cavanaugh