Piston ring for an internal combustion engine

A piston ring for sealing a cylinder wall to a piston body is provided. The piston ring includes a ring body that extends about an axis and has inner and outer faces. The inner face presents a pair of ridges that extend in a radially inward direction, and the outer face presents a groove. A spring of an elastomeric material substantially circumferentially surrounds the ring body and is seated in the groove on the inner face. The spring biases the ring body in the radially inward direction to seal the ridges against the piston body. The ring body also has at least one oil drainage port which extends at an angle relative to the radially inward direction from the inner face to a location on the outer face on one axial side of the spring for conveying oil out of a space between the ridges.

Internal combustion engine

The present embodiment relates to an internal combustion engine having an anodic oxide coating formed on at least a portion of an aluminum-based wall surface facing a combustion chamber. The anodic oxide coating has a plurality of nanopores extending substantially in the thickness direction of the anodic oxide coating, a first micropore extending from the surface toward the inside of the anodic oxide coating, and a second micropore present in the inside of the anodic oxide coating; the surface opening diameter of the nanopores is 0 nm or larger and smaller than 30 nm; the inside diameter of the nanopores is larger than the surface opening diameter; the film thickness of the anodic oxide coating is 15 μm or larger and 130 μm or smaller; and the porosity of the anodic oxide coating is 23% or more.

Method and system for processing an automotive engine block

A method and system for processing an engine block that includes a cylinder liner. The engine block having a first material with different coefficient of thermal expansion than a second material forming the cylinder liner. The method includes providing an insulating barrier to the cylinder liner, and quenching the engine block. The insulating barrier provides a lower cooling rate to the second material forming the cylinder liner than a cooling rate for the first material forming the engine block during the quenching.

INTERNAL COMBUSTION ENGINE INCLUDING AN ELEMENT AT THE CYLINDER INNER WALL FOR SCRAPING OFF OIL CARBON

An internal combustion engine of a motor vehicle includes an element at the cylinder inner wall for scraping off oil carbon. The internal combustion engine includes at least one working cylinder and a cylinder head closing the working cylinder, the working cylinder including a cylinder barrel and/or a cylinder liner (), and which includes at least one element in the area of the cylinder head, which is suitable for scraping off any accumulated oil carbon.

SYSTEM FOR CONTROLLING DEPOSITS ON CYLINDER LINER AND PISTON OF RECIPROCATING ENGINE

A system includes a reciprocating engine having a cylinder liner and a piston disposed within the cylinder liner. The cylinder liner includes an inner wall and extends around a cavity. The inner wall includes a first axial end, a second axial end, a piston travel portion, and a top portion. The top portion is nearer to the first axial end of the cylinder liner than to the second axial end of the cylinder liner. The top portion has a first surface finish with a first roughness average (Ra) greater than approximately 2 μm and a total waviness (Wt) less than approximately 0.1 mm. The piston is configured to move in a reciprocating manner within the cylinder liner. The piston includes a top land configured to be radially opposite the top portion of the inner wall of the cylinder liner when the piston is at a top dead center position. 1. A reciprocating engine , comprising:{'sub': 1', '1, 'a cylinder liner having an inner wall and extending around a cavity, wherein the inner wall comprises a first axial end, a second axial end, a piston travel portion, and a top portion, wherein the top portion is nearer to the first axial end of the cylinder liner than to the second axial end of the cylinder liner, the top portion comprises a first surface finish, the first surface finish comprises a first roughness (Ra) greater than approximately 2 μm and a total waviness (Wt) less than approximately 0.1 mm, and Raand Wt are based on a characteristic length of approximately 0.8 mm; and'}a piston disposed within the cavity and configured to move in a reciprocating manner within the cylinder liner, wherein the piston comprises a top land configured to be radially opposite the top portion of the inner wall of the cylinder liner when the piston is at a top dead center position.2. The reciprocating engine of claim 1 , wherein Rais greater than approximately 5 μm.3. The reciprocating engine of claim 1 , wherein Rais less than approximately 25 μm.4. The reciprocating engine of claim 1 , ...

ARRANGEMENT FOR AN INTERNAL COMBUSTION ENGINE

An arrangement may include one of a cylinder liner or a cylinder bore formed in a crankcase of an internal combustion engine, a piston having a peripheral top land and being accommodated in the cylinder liner or cylinder bore, and an annular insert accommodated in the cylinder liner or cylinder bore and extending axially parallel to the piston top land. The cylinder liner or cylinder bore may have a radially inwardly-directed shoulder at an upper free end of the cylinder liner or cylinder bore. The annular insert may have along an upper peripheral free edge of the annular insert, distributed around a circumference of the annular insert, at least two beads or embossments located opposite one another and resting on the radially inwardly-directed shoulder. 1. An arrangement comprising:one of a cylinder liner or a cylinder bore formed in a crankcase of an internal combustion engine;a piston having a peripheral top land accommodated in the one of the cylinder liner or the cylinder bore; andan annular insert accommodated in the one of the cylinder liner or the cylinder bore and extending axially parallel to the piston top land;wherein the one of the cylinder liner or the cylinder bore has a radially inwardly-directed shoulder at an upper free end of the one of the cylinder liner or the cylinder bore, and the annular insert has along an upper peripheral free edge of the annular insert, distributed around a circumference of the annular insert, at least two beads or embossments located opposite one another and resting on the radially inwardly-directed shoulder.2. The arrangement as claimed in claim 1 , wherein the height of the radially inwardly-directed shoulder is zero.3. The arrangement as claimed in claim 1 , wherein the annular insert has more than two beads or embossments distributed uniformly around the circumference of the annular insert.4. The arrangement as claimed in claim 2 , wherein a distance between two of the beads or embossments is greater than an outer ...

CYLINDER LINER FOR AN OPPOSED-PISTON ENGINE

A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion. 19-. (canceled)10. A method for thermal management in a cylinder liner of an opposed-piston engine , comprising:causing combustion of a mixture of fuel and air between the end surfaces of a pair of pistons disposed in the cylinder liner of the opposed-piston engine when the pistons are near respective top center locations in an annular liner portion of the cylinder liner; and,impeding flow of heat through the cylinder liner with a higher resistance in the annular liner portion than in the rest of the cylinder liner.11. A method of manufacturing a cylinder liner for an opposed-piston engine , comprising:providing a cylinder liner for an opposed-piston engine, in which the cylinder liner includes intake and exhaust ports near respective ends thereof;{'sub': '1', 'honing a bore having a first diameter Din the liner;'}forming an annular groove in the bore at an annular liner portion containing piston top center (TC) locations;{'sub': 2', '1', '2, 'providing an annular ring having an interior diameter D, wherein D>D;'}{'sub': '1', 'heating the cylinder liner to increase the diameter D;'}heating the annular ring;placing the annular ring in the bore over the annular groove;swaging the annular ring into the annular groove; and,cooling the cylinder liner and the annular ring.12. The method of claim 11 , further including claim 11 , from ...

Piston and cylinder of an internal combustion engine and internal combustion engine

A piston of a cylinder of an internal combustion engine includes: an upper piston crown; a radially outer surface; a plurality grooves arranged on the radially outer surface; and a plurality of piston rings each positioned in a respective one of the grooves. The radially outer surface forms a top land arranged between the upper piston crown and an uppermost one of the grooves of the piston, and the top land has an axial length and a non-abrasion-proof coating.

ENGINE BLOCK FOR AN INTERNAL COMBUSTION ENGINE

The present disclosure provides a cylinder block for an internal combustion engine having a first cylinder, a first cylinder sleeve, a second cylinder, and a second cylinder sleeve. The first cylinder defines a first cylindrical wall while the second cylinder defines a second cylindrical wall. The first cylinder sleeve lines the first cylindrical wall while the second cylinder sleeve lines the second cylindrical wall. Each of the first and the second cylinder sleeves define a thrust sleeve region, an anti-thrust sleeve region opposite the thrust sleeve region, and a pair of Siamese regions. The outer wall of each of the first and second cylinder sleeves progressively widens toward the top sleeve surface of each of the first and second cylinder sleeves. 1. A cylinder block of an internal combustion engine comprising:a first cylinder having a first cylindrical wall;a first cylinder sleeve lining the first cylindrical wall;a second cylinder having a second cylindrical wall; anda second cylinder sleeve lining the second cylindrical wall, each of the first and the second cylinder sleeves having an inner wall and an outer wall which define a thrust sleeve region, an anti-thrust sleeve region opposite the thrust sleeve region, and a pair of Siamese regions;wherein the inner and outer walls for each of the first and second cylinder sleeves being substantially co-cylindrical within the first cylinder and the second cylinder respectively, and each of the inner and outer walls define a top sleeve surface for intended to accommodate at least part of a head gasket, andwherein the outer wall of each of the first and second cylinder sleeves progressively widens along longitudinal axis toward a top sleeve surface of each of the first and second cylinder sleeves.2. The cylinder block as defined in wherein the thrust sleeve region and the anti-thrust sleeve region of each of the first and second cylinder sleeves are aligned with a corresponding thrust region and a corresponding anti- ...

CYLINDER BLOCK AND CYLINDER BLOCK COMBINED WITH CYLINDER LINER

A cylinder block includes an extension portion that is shaped to extend toward the cylinder liner and is formed on an end portion of the cylinder block so as to form a surface contact with a head gasket. In particular, the cylinder liner includes an end portion forming an accommodation groove portion that is shaped to correspond to the extension portion, and a part of the end portion of the cylinder liner is supported on a circumferential surface of the extension portion and is linked to the accommodation groove portion. In addition, the part of the end portion of the cylinder liner forms a surface contact with the head gasket. 1. A cylinder block for an engine , the cyliner block comprising:an extension portion formed on an end portion of the cylinder block and configured to extend toward a cylinder liner, the end portion of the cylinder block configured to form a surface contact with a head gasket,wherein the cylinder liner includes an end portion forming an accommodation groove portion that is shaped to correspond to the extension portion, and a part of the end portion of the cylinder liner is supported on a circumferential surface of the extension portion and is linked to the accommodation groove portion, andwherein the part of the end portion of the cylinder liner forms a surface contact with the head gasket.2. The cylinder block according to claim 1 , wherein a protruding bead portion formed on a bottom surface of the head gasket is not positioned at a border point between the extension portion and the accommodation groove portion.3. The cylinder block according to claim 1 , wherein a protruding bead portion formed on a bottom surface of the head gasket is positioned within an upper surface of the cylinder block.4. The cylinder block according to claim 3 , wherein a liner protrusion is famed on an outer circumferential surface of the cylinder liner claim 3 , and the liner protrusion is shaped to be inserted into an inner circumferential surface of the cylinder ...

CARBON SCRAPING RING WITH ABRADABLE COATING

A device and method for preventing and removing carbon deposit build-up on a piston/cylinder assembly of an engine, including a diesel engine, is disclosed. The device includes a cylinder having an inner sleeve for receiving a piston, a carbon scraping ring positioned on the cylinder sleeve, the carbon scraping ring including an inner surface, and an abradable coating applied to the inner surface of the carbon scraping ring providing a wearable surface between the piston and the cylinder sleeve. The abradable coating has a wearable surface, which conforms to the shape created by the movement of the piston and the cylinder sleeve and carbon scraping ring, creating a substantially zero clearance fit between the piston and the carbon scraping ring. The clearance may reduce oil consumption and improve sealing of the cylinder and piston, thereby reducing blow-by. 1. A carbon deposit removal assembly for use in an internal combustion engine , the device comprising:a cylinder having an inner sleeve for receiving a piston;a carbon scraping ring positioned on the cylinder sleeve, the carbon scraping ring including an inner surface; and,an abradable coating applied to the inner surface of the carbon scraping ring providing a wearable surface between the piston and the cylinder sleeve.2. The carbon deposit removal assembly of claim 1 , wherein the carbon scraping ring is supported on the inner cylinder sleeve.3. The carbon deposit removal assembly of claim 1 , wherein the abradable coating has a thickness sufficient for the wearable surface to contact the piston within the cylinder sleeve.4. The carbon deposit removal assembly of claim 1 , wherein the wearable surface of the abradable coating has a shape determined from movement of the piston against the surface and the carbon scraping ring of the cylinder sleeve.5. The carbon deposit removal assembly of claim 4 , wherein the shape of the wearable surface further provides an engagement surface between the piston and the carbon ...

Cylinder Head with Connected Exhaust Manifold of an Internal Combustion Engine

A cylinder head with connected exhaust manifold of an internal combustion engine the cylinder head has an exhaust duct ending at a cylinder head connecting face to which the exhaust manifold is connected. A flange bushing insert having a bushing part and an end-side flange, is inserted into an exhaust gas duct of the cylinder head. The bushing part has a radially protruding, circumferential bead as a spacer and sealing element that bears against the exhaust duct inner wall. The flange projects at the end of the flange bushing insert and is clamped between the cylinder head connecting face and the exhaust manifold connecting face such that a circumferential insulating gap. 1. A cylinder head assembly of an internal combustion engine , comprising:a cylinder head having at least one exhaust duct that ends at an outer cylinder head connecting face;an exhaust manifold having an assigned exhaust manifold connecting face that is connected to the outer cylinder head connecting face of the cylinder head;at least one screw connection that connects the cylinder head to the exhaust manifold; a bushing part that has at least one radially protruding, circumferential bead as a spacer and sealing element with which the bushing part bears against an exhaust duct inner wall; and', 'an end-side flange part that projects in an annular disc shape radially at an outer end of the flange bushing insert and is clamped between the outer cylinder head connecting face and the exhaust manifold connecting face; and, 'a flange bushing insert inserted into the at least one exhaust duct of the cylinder head, havinga circumferential thermally insulating gap that is uncoupled from an exhaust gas flow having a gap width corresponding to a bead height of the circumferential bead bounded by the exhaust duct inner wall, an outer wall of the bushing part, the flange part, and the at least one radially protruding, circumferential bead.2. The cylinder head assembly according to claim 1 , wherein the flange ...

CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE

Rib configurations for increasing the structural efficiency of a cylinder head, which relates to a peak combustion pressure capability of the cylinder head. In addition to increasing peak combustion pressure, the rib configurations may also improve sealing of the cylinder head and may improve the durability of an associated cylinder head gasket. 120-. (canceled)21. A cylinder head for an internal combustion engine , the cylinder head comprising:a bottom deck;a component bore having an component bore wall extending longitudinally from the bottom deck;a bolt boss extending longitudinally from the bottom deck and positioned at a first radial distance from the component bore;a valve boss positioned a second radial distance from the component bore, the second radial distance being less than the first radial distance;an intake passage wall;an exhaust passage wall; anda first rib connected to one of the intake passage wall and the exhaust passage wall, the first rib extending longitudinally upward from the one of the intake passage wall and the exhaust passage wall and connected to the component bore wall.22. The cylinder head of claim 21 , wherein the first rib is also connected to the valve boss.23. The cylinder head of claim 22 , further comprising a second rib connected to the other of the intake passage wall and the exhaust passage wall claim 22 , the second rib extending longitudinally upward from the other of the intake passage wall and the exhaust passage wall and connected to the component bore wall.24. The cylinder head of claim 23 , further comprising a second valve boss claim 23 , wherein the second rib is also connected to the second valve boss.25. The cylinder head of claim 23 , further comprising a third rib connected to and extending longitudinally upward from the bottom deck and connected to the component bore wall.26. The cylinder head of claim 25 , further comprising a fourth rib connected to and extending longitudinally upward from one of the intake ...

CYLINDER LINER FOR AN INTERNAL COMBUSTION ENGINE AND METHOD OF FORMING

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 circumferential section of the outer surface of the liner is coated with an insulative, thermoset material with a lower thermal conductivity than the 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 a texture and an insulative thermoset coating to form material interfaces with the block with different thermal conductivities thereacross. 1. An engine comprising:a cylinder liner having an outer surface and an inner surface extending from a first end to a second end of the liner; anda cylinder block formed about the cylinder liner with a first end of the liner adjacent to a deck face of the block, the block defining a cooling jacket extending circumferentially about at least a portion of the outer surface of the liner and spaced apart therefrom;wherein a first circumferential section of the outer surface of the liner has a texture forming a first material interface with the block, the first material interface having a first thermal conductivity thereacross;wherein a second circumferential section of the outer surface of the liner has the texture with a coating provided thereon and forming a second material interface with the block, the coating comprising a thermoset resin, the second material interface having a second thermal conductivity thereacross, the second thermal conductivity being less than the first thermal conductivity; andwherein the first circumferential section is positioned between the first end and the second circumferential section.2. The engine of wherein the second circumferential section is directly adjacent to the first circumferential section and is spaced apart from the second end of the liner; andwherein the ...

OPPOSED PISTON ENGINE CYLINDER WITH CARBON SCRAPER

Technology is provided for a cylinder with a carbon scraper for use in an opposed piston engine. The cylinder includes a cylinder body having first and second piston bores extending along a central axis for reciprocation of corresponding first and second pistons therein. A chamber bore is located between the first and second piston bores and first and second annular grooves are located on opposite ends of the chamber bore. The chamber bore extends between and is inclusive of a top-dead-center position of a top land of each of the first and second pistons. The first and second piston bores have a piston diameter and the chamber bore has a chamber diameter smaller than the piston diameter. For example, the chamber diameter can be between about 0.004 and about 0.020 inches smaller than the piston diameter. 1. A cylinder for an opposed piston engine , comprising: first and second piston bores extending along a central axis for reciprocation of corresponding first and second opposed pistons therein;', 'a chamber bore located between the first and second piston bores; and', 'first and second open annular scraper grooves located on opposite ends of the chamber bore., 'a cylinder body including2. The cylinder of claim 1 , wherein the first and second piston bores have a piston diameter and the chamber bore has a chamber diameter smaller than the piston diameter.3. The cylinder of claim 2 , wherein the chamber diameter is between about 0.004 and about 0.020 inches smaller than the piston diameter.4. The cylinder of claim 1 , wherein the first and second piston bores have a piston diameter and the chamber bore has a chamber diameter substantially the same as the piston diameter.5. The cylinder of claim 1 , wherein the first and second piston bores have a piston diameter and the chamber bore has a chamber diameter larger than the piston diameter.6. The cylinder of claim 1 , wherein the chamber bore extends between and is inclusive of a top-dead-center position of a top land of ...

ROTATIONAL UNIT HAVING A HOLLOW-SHAFT MOTOR

In order to create a rotating unit for a coating lance device for thermally coating an interior, it is provided that the rotary drive is implemented as a hollow-shaft motor coaxial with the axis of rotation of the tool holder, and wherein the tool holder and the coating material feed, as well as the process media feed, are located centrally relative to the hollow-shaft motor. Furthermore, in order to create a coating lance device for thermally coating an interior, it is proposed to provide such a rotating unit; at least one linear actuator for axial and/or lateral positioning of the rotating unit relative to an interior to be coated; and stationary supply connections for supplying electricity to the coating lance, and for the coating material feed, and for the process media feed. 1. A rotating unit for a coating lance device for thermally coating an interior of a cylinder bore of an engine block , the rotating unit comprising:a tool holder for a coating lance with an axis of rotation;a rotary drive for rotating the tool holder about the axis of rotation;a coating material feed for supplying the coating lance with a coating material;a process media feed for providing process media for coating an interior via the coating lance mounted in the tool holder,wherein the rotary drive is a hollow-shaft motor arranged coaxial with the axis of rotation of the tool holder, andwherein the tool holder and the coating material feed, as well as the process media feed are located centrally relative to the hollow-shaft motor.2. The rotating unit according to claim 1 , wherein a slip ring assembly for transmitting electric power to the coating lance is located radially outside the hollow-shaft motor.3. The rotating unit according to claim 2 , wherein an exhaust system for removing slip ring dust from the slip ring assembly is provided claim 2 , and wherein at least one air jet is also provided via which removal of the slip ring dust is assisted.4. The rotating unit according to claim ...

CYLINDER LINER FOR INTERNAL COMBUSTION ENGINE

A cylinder liner for an engine block that includes an inter-bore saw cut includes a first engine block bonding surface, and a second engine block bonding surface that has a lower level of bonding between the cylinder liner and an engine block than the first engine block bonding surface. The second engine block bonding surface extending from an axial end portion of the liner a distance greater than a depth of the saw cut in inter-bore section of the engine block. 1. A cylinder liner for an engine block that includes an inter-bore saw cut , comprising:a first engine block bonding surface; anda second engine block bonding surface that has a lower level of bonding between the cylinder liner and an engine block than the first engine block bonding surface, the second engine block bonding surface extending from an axial end portion of the liner a distance greater than a depth of the saw cut in inter-bore section of the engine block.2. The liner of claim 1 , wherein the first engine block bonding surface comprises an as-cast surface.3. The liner of claim 2 , wherein the as-cast surface comprises a spiny-lock surface.4. The liner of claim 2 , wherein the as-cast surface comprises a plurality of projections radially extending between about 0.3 to 0.7 millimeters.5. The liner of claim 1 , wherein the second engine block bonding surface comprises a machined surface.6. The liner of claim 1 , wherein the first engine block bonding surface extends from the second engine block bonding surface across substantially the remaining axial extent of the liner.7. The liner of claim 1 , wherein the first engine block bonding surface is configured to provide a strong mechanical bond and a high thermal conductivity between the liner and the engine block and wherein the second engine block bonding surface is configured to provide a reduced mechanical bond between the liner and the engine block such that a differing coefficient of thermal expansion between the liner material and the engine ...

STRESS RELIEF OF MECHANICALLY ROUGHENED CYLINDER BORES FOR REDUCED CRACKING TENDENCY

A method of treating the surface of an aluminum-based engine block cylinder bore that has been mechanically roughened. In one form, this method includes using vibratory stress relief, elevated temperature stress relief or cryogenic stress relief so that residual stresses imparted to the surface by the roughening process are reduced. In this way, a protective coating that is also applied to the bore surface will exhibit better adhesion and lower incidence of stress-induced or fatigue-induced cracking. 1. A method of treating a cylinder bore that is formed in an aluminum-based engine block , said method comprising:activating an exposed surface of said bore with mechanical roughening; andreducing residual stress present in said activated surface through at least one of vibration stress relief, elevated temperature stress relief and cryogenic stress relief.2. The method of claim 1 , further comprising forming at least one protective coating on said treated bore.3. The method of claim 2 , wherein said at least one protective coating is selected from the group consisting of a thermal barrier coating claim 2 , a wear resistant coating claim 2 , an anti-corrosion coating claim 2 , a bond-promotion coating and combinations thereof.4. The method of claim 2 , wherein said at least one protective coating is applied by thermal spraying.5. The method of claim 2 , wherein no cylinder liner is placed between said cylinder bore and said at least one protective coating.6. The method of claim 1 , wherein said vibration stress relief comprises:operating a vibrating device that is in vibration cooperation with said block in order to ascertain at least one resonant frequency response condition associated with said block;imparting vibration to said block from said vibrating device under an operational condition that substantially coincides with said at least one resonant frequency response condition; andmonitoring said imparted vibration until said residual stress is reduced to a ...

Method for producing a sprayed cylinder running surface of a cylinder crankcase of an internal combustion engine and such a cylinder crankcase

A method for producing a cylinder running surface of a cylinder crankcase of an internal combustion engine includes thermally spraying a coating material comprising particles onto a cylinder inner wall of a cast cylinder crankcase using an inert gas as an atomizer gas so as to produce a coating. A mass feed rate of the coating material during the thermal spraying is 8 to 22.5 kg/h.

Piston scraping ring with power groove

A device and method for preventing and removing piston deposit build-up on a piston cylinder assembly of an engine, including a diesel engine, is disclosed. A cylinder having an inner sleeve for receiving a piston, has a piston scraping ring positioned on the cylinder sleeve. The piston scraping ring includes an inner surface, and has a curved or hook shaped feature on its inner surface. The curved or hook shaped feature, named the ‘power groove’ for the purposes of this application, allows for reduced wear between the piston rings and the cylinder sleeve by reducing the pressure on the piston rings by expanding and reversing the flow of combustion gases. Additionally, this reversal of the combustion gases results in a decrease in blow-by gases passing between the piston rings and cylinder sleeve thereby improving sealing between the piston and the cylinder.

LASER REMELTING TO ENHANCE CYLINDER BORE MECHANICAL PROPERTIES

An engine block, an automotive structure, and a method of coating an inner surface of an engine cylinder bore of an engine cylinder are provided. The method includes providing an inner bore substrate defining an inner surface of the engine cylinder bore, the inner bore substrate being formed of a first material. The method further includes disposing a thermal spray coating onto the inner surface of the engine cylinder bore. The thermal spray coating is formed of a second material that is different than the first material. The method also includes melting at least a portion of the thermal spray coating with a laser after performing the step of disposing the thermal spray coating onto the inner surface of the engine cylinder bore. The automotive structure and the engine block have a substrate covered by a thermal spray coating and laser remelted sections anchoring the coating to the substrate. 1. A method of creating an engine cylinder bore of an automotive engine , the method comprising:providing an inner bore substrate defining an inner surface of the engine cylinder bore, the inner bore substrate being formed of a first material;disposing a thermal spray coating onto the inner surface of the engine cylinder bore such that a substantial entirety of a piston travel path on the inner surface is covered by the thermal spray coating, the thermal spray coating being formed of a second material that is different than the first material; andmelting at least a portion of the thermal spray coating with a laser after performing the step of disposing the thermal spray coating onto the inner surface of the engine cylinder bore.2. The method of claim 1 , wherein the step of melting at least a portion of the thermal spray coating with the laser includes melting multiple sections of the thermal spray coating to form a plurality of laser remelted sections claim 1 , while allowing at least a portion of the thermal spray coating to remain unmelted by the laser.3. The method of claim ...

Engine

Provided is an engine, including: a cylinder including a cylinder liner; a piston provided inside the cylinder liner; a piston ring provided on the piston; a contact detector configured to detect a contact between a step formed in an inner peripheral surface of the cylinder liner and the piston ring; and a compression ratio controller configured to control a top dead center position of the piston so that the piston ring at the top dead center position is located on a combustion chamber side with respect to the step when the contact is detected.

ANTIPOLISHING RING

Unique apparatuses and methods for scraping deposits from a piston as the piston moves in an upstroke direction and a downstroke direction. An engine assembly includes a cylinder having a cylinder bore, a piston having a crown end, wherein the piston is disposed in the cylinder bore and configured to move in an upstroke direction and a downstroke direction relative to the cylinder bore. The piston includes a first land positioned adjacent the crown end. An antipolishing ring is disposed within the cylinder bore. The antipolishing ring has an outer annular surface and an inner annular surface, the inner annular surface has one or more protrusions configured to scrape the first land when the piston moves in the upstroke direction and the downstroke direction. The protrusions are also configured to scrape the first land when the piston has secondary or lateral motion. 1. An engine assembly , comprising:a cylinder having a cylinder bore;a piston having a crown end with a first land adjacent the crown end, the piston disposed in the cylinder bore and configured to move in an upstroke direction and a downstroke direction relative to the cylinder bore; andan antipolishing ring disposed within the cylinder bore, the antipolishing ring having an outer annular surface and an inner annular surface, the inner annular surface including a protrusion having an inner face with an inner diameter that is smaller than a diameter of the inner annular surface, the protrusion having a first edge and a second edge wherein the first and second edges are configured to scrape the first land when the piston moves in at least one of the upstroke direction and the downstroke direction.2. The engine assembly of claim 1 , wherein the protrusion is configured to scrape the first land when the piston moves in a lateral direction.3. The engine assembly of claim 1 , wherein the protrusion is positioned at a lower end of the inner annular surface as measured relative to a longitudinal axis of the ...

Cylinder block inspection method and system

A system for inspecting thermal spray coated cylinder bores of aluminum alloy cylinder blocks, the system includes a failure detection apparatus, a heating apparatus, a cooling apparatus, and a control unit in electronic communication with each of the failure detection apparatus, the heating apparatus, and the cooling apparatus, and wherein the control unit includes a memory and a control logic sequence for operating the system.

HEAT INSULATION STRUCTURE OF COMBUSTION CHAMBER OF ENGINE

An object of the present invention is to, while forming a heat insulating layer on a squish area surface of a top surface of a piston main body, prevent generation of large cracks on the heat insulating layer and suppress damages and peeling of the heat insulating layer. To achieve this object, in the present invention, a heat insulating layer on a squish area surface of a top surface of a piston main body is made thinner than a heat insulating layer on a cavity surface of the top surface of the piston main body. 1. A heat insulation structure of a combustion chamber of an engine ,the heat insulation structure being configured such that a heat insulating layer is provided on a top surface of a piston main body defining the combustion chamber of the engine, wherein:the top surface of the piston main body includes a cavity surface forming a cavity of the combustion chamber and a squish area surface forming a squish area of the combustion chamber; anda thickness of the heat insulating layer provided on the squish area surface is 5% or more and 50% or less of a thickness of the heat insulating layer provided on the cavity surface.2. The heat insulation structure according to claim 1 , wherein the heat insulating layer includes:a large number of hollow particles; anda binder that holds the hollow particles on the top surface of the piston main body and fills spaces among the hollow particles to form a base material of the heat insulating layer.3. The heat insulation structure according to claim 2 , wherein the binder is silicone-based resin.4. The heat insulation structure according to claim 2 , wherein the hollow particles are glass balloons.5. The heat insulation structure according to claim 1 , wherein:the thickness of the heat insulating layer provided on the cavity surface is 60 μm or more and 100 μm or less; andthe thickness of the heat insulating layer provided on the squish area surface is 30 μm or more and 50 μm or less.6. The heat insulation structure according ...

CYLINDER LINER FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR MAKING CYLINDER LINER

A method of manufacturing a cylinder liner for an engine block for a vehicle propulsion system and the cylinder liner made from the method. The method includes providing a cylinder liner mold having a cylindrical inner surface, masking a first portion of the cylindrical inner surface, applying a coating to a second portion of the cylindrical inner surface, and forming a cylinder liner by solidifying molten metal in the cylinder liner mold. 1. A method of manufacturing a cylinder liner for an engine block for a vehicle propulsion system , the method comprising:providing a cylinder liner mold having a cylindrical inner surface;masking a first portion of the cylindrical inner surface;applying a coating to a second portion of the cylindrical inner surface; andforming a cylinder liner by solidifying molten metal in the cylinder liner mold.2. The method of claim 1 , further comprising removing the masking from the first portion of the cylindrical inner surface prior to forming the cylinder liner.3. The method of claim 2 , further comprising applying a second coating to the first portion of the cylindrical inner surface.4. The method of claim 1 , wherein masking the first portion comprises inserting a mask into the cylinder liner mold that masks the first portion of the cylindrical inner surface.5. The method of claim 1 , further comprising inserting a spray tool having a spray nozzle into the cylinder liner mold prior to applying the coating.6. The method of claim 5 , wherein the spray tool comprises a mask that masks the first portion of the cylinder liner surface.7. The method of claim 1 , wherein the cylinder liner mold further comprises a spline formed in the second portion of the cylindrical inner surface.8. A cylinder liner produced by the method of .9. The cylinder liner of claim 8 , wherein the cylinder liner comprises a first engine block bonding surface formed adjacent to the first portion of the cylindrical inner surface and a second engine block bonding ...

Cast Part and Insert for Such a Cast Part

The invention provides a cast part which is cast from a casting material and into which a channel is formed which gas flows through in operation, wherein the channel is at least in sections delimited by a separately prefabricated metal insert which is cast into the cast part. In order that such a cast part can withstand the highest thermal and mechanical stresses in the area of its gas-conveying channel, the invention proposes that the insert on its inner surface assigned to the gas and on its outer surface assigned to the casting material is in each case at least in sections coated in each case with a glaze or enamel coat. 1. A cast part which is cast from a casting material and into which a channel is formed which gas flows through in operation ,wherein the channel is at least in sections delimited by a separately prefabricated metal insert which is cast into the cast part,wherein the insert on its inner surface assigned to the gas and on its outer surface assigned to the casting material is in each case at least in sections coated in each case with a glaze or enamel coat.2. The cast part according to claim 1 , wherein the glaze or enamel coats on the inside and outside of the insert are different.3. The cast part according to claim 1 , wherein the coat in each case provided on the outer surface of the insert has pores.4. The cast part according to claim 3 , wherein the casting material during casting of the insert has penetrated into pores of the coat on the outer surface.5. The cast part according to claim 1 , wherein the insert is tubular.6. The cast part according to claim 1 , wherein the cast part is a cylinder head for an internal combustion engine and the insert is assigned to a channel of the cylinder head which conveys exhaust gas.7. The cast part according to claim 1 , wherein the cast part is a housing for an exhaust gas turbocharger claim 1 , and the insert is assigned to a channel of the housing which conveys exhaust gas.8. The cast part according to ...

CYLINDER LINER HAVING ROLL-BURNISHED RECESS

A cylinder liner is disclosed. The cylinder liner may include a hollow generally cylindrical body extending from a top end to a bottom end along a longitudinal axis, and an annular flange extending radially outwardly from the top end of the body. The cylinder liner may also include an annular recess adjacent the flange at a side closest to the bottom end of the body. The recess may have first and second axial ends, a substantially straight portion extending between the first and second axial ends, and at least one fillet formed at an intersection between the straight portion and at least one of the first and second axial ends. A roll-burnishing operation may be performed on the straight portion and the at least one fillet in a direction along the longitudinal axis. 1. A cylinder liner , comprising:a hollow generally cylindrical body extending from a top end to a bottom end along a longitudinal axis;an annular flange extending radially outwardly from the top end of the body; and first and second axial ends;', 'a substantially straight portion extending between the first and second axial ends; and', 'at least one fillet formed at an intersection between the straight portion and at least one of the first and second axial ends,, 'an annular recess adjacent the flange at a side closest to the bottom end of the body, the recess havingwherein a roll-burnishing operation is performed on the straight portion and the at least one fillet in a direction along the longitudinal axis.2. The cylinder liner of claim 1 , wherein the at least one fillet includes:a first fillet formed at an intersection between the flange and the recess; anda second fillet formed at an intersection between the recess and an outer surface of the cylinder liner.3. The cylinder liner of claim 2 , wherein the straight portion extends between and is tangential with the first and second fillets.4. The cylinder liner of claim 3 , wherein a length of the straight portion is about 1 to 8 mm.5. The cylinder ...

Ice design

FIELD: engines and pumps. SUBSTANCE: engine comprises at least one cylinder (11) with lengthwise axis (A). One end of said cylinder is closed by head (12). Cylinder head seals (16) are fitted in between cylinder and its head. Gome removal ring (17) has axial end surface (20) and second axial end surface (21) and is fitted in recess (18) around cylinder inner periphery to abut on cylinder head seal. Axial length of gome removal ring (17) is smaller than total length of recess (18) and cylinder head seal (16). One or both axial both surfaces (20, 21) of said gome removal ring is equipped with seal (23). Axial length before fitting in place is such that sum of seal axial length of gome and removal ring (17) axial length are larger than total axial length of recess (18) and that of cylinder head seal (16). Invention describes the engine of above described design. EFFECT: decreased emission of harmful emissions, longer life. 7 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 528 227 C1 (51) МПК F02F 11/00 (2006.01) F02B 77/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013101778/06, 14.06.2011 (24) Дата начала отсчета срока действия патента: 14.06.2011 (72) Автор(ы): ЛИАНДЕР, Фредрик (SE), ЛАРСЕН, Пер (SE) (73) Патентообладатель(и): СКАНИА СВ АБ (SE) Приоритет(ы): (30) Конвенционный приоритет: R U 16.06.2010 SE 1050613-7 (45) Опубликовано: 10.09.2014 Бюл. № 25 6196179 B1, 06.03.2001 . US 4474147 A, 02.10.1984 . US 5553585 A, 10.09.1996 . DE 1902502 B1, 12.11.1970 . US 6164260 A, 26.12.2000. RU 2153089 C2, 20.07.2000 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.01.2013 (86) Заявка PCT: 2 5 2 8 2 2 7 (56) Список документов, цитированных в отчете о поиске: DE 10321034 B3, 13.01.2005 . US 2 5 2 8 2 2 7 R U (87) Публикация заявки PCT: C 1 C 1 SE 2011/050726 (14.06.2011) WO 2011/159231 (22.12.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО " ...

Method of making aluminium alloy castings containing an insert and cylinder head of internal combustion engine obtained thereby

Cylinder head with local oil cooling for air-cooled internal combustion engine

Cylinder head of internal combustion engine

Heat conducting shield member for cylinder heads of internal combustion engines having at least two gas change ports with valve seat rings at their combustion chamber end, with the valve bridge portion between the valve seat rings shielded by the shield member against the combustion chamber. The shield member is formed as a heat conducting shield which in the area of the valve bridge portion between the bridge and the cylinder head wall forms a hollow space and is in full contact with the cylinder head in the area of cylinder head wall members which can be readily cooled.

Cylinder head of multicylinder water-cooled internal combustion engine

Cylinder head for internal-combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Internal combustion engine

Anti-cavitation and environment-friendly cylinder sleeve

本发明公开了一种抗穴蚀的环保型气缸套，包括气缸套本体，所述气缸套本体的水道壁上设置有水道壁增强结构，水道壁增强结构包括环绕水道壁外周面设置的增强套，增强套的内周面与水道壁的壁面固定连接，增强套的外周面设置为锥面，该锥面与水道壁的壁面连接处平滑过渡；所述气缸套本体的支撑肩下端面处设置有垫圈，垫圈套设在所述气缸套本体上。本发明增加了气缸套整体刚度，减小了气缸套工作时振动，以实现来抗穴蚀。

Aluminum alloy engine component and method of manufacturing the same

Cylinder head

내용없음 No content

METHOD FOR PRODUCING A SPRAYED WORKING SURFACE OF A CYLINDER IN THE INTERNAL COMBUSTION ENGINE CYLINDER BLOCK, AND ALSO SUCH A CYLINDER BLOCK

А 2016123807 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) заах за (13) ЗА 3 КО зо Чаи: А (51) МПК С23С 4/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (52) СПК С23С 4/06 (2006.01); С23С 4/1 34 (2006.0) (21)(22) Заявка: 2016123807, 12.08.2014 (71) Заявитель(и): КС ХУАЮЙ АЛУТЕК ГМБХ (РЕ) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 20.11.2013 РЕ 10 2013 112 809.2 ШРАММ Леандер (ОЕ), (43) Дата публикации заявки: 25.12.2017 Бюл. № 36 КЛИМЕШ Др. Кристиан (РЕ) (85) Дата начала рассмотрения заявки РСТ на национальной фазе: 20.06.2016 (86) Заявка РСТ: ЕР 2014/067246 (12.08.2014) (87) Публикация заявки РСТ: УГО 2015/074775 (28.05.2015) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ИЗГОТОВЛЕНИЯ НАПЫЛЕННОЙ РАБОЧЕЙ ПОВЕРХНОСТИ ЦИЛИНДРА В БЛОКЕ ЦИЛИНДРОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ, А ТАКЖЕ ТАКОЙ БЛОК ЦИЛИНДРОВ (57) Формула изобретения 1. Способ изготовления рабочей поверхности цилиндра в блоке цилиндров двигателя внутреннего сгорания, причем покрытие (30) изготавливают на внутренней стенке (24) цилиндра отлитого блока цилиндров термическим напылением и причем в качестве распылительного газа используют инертный газ, отличающийся тем, что величина массового расхода покровного материала (15) при термическом напылении составляет от 8 до 22,5 кг/ч. 2. Способ изготовления напыленной рабочей поверхности цилиндра в блоке цилиндров двигателя внутреннего сгорания по п.1, отличающийся тем, что величина расхода распылительного газа при термическом напылении составляет от 900 до 1500 л/мин. 3. Способ изготовления напыленной рабочей поверхности цилиндра в блоке цилиндров двигателя внутреннего сгорания по п.1, Стр.: 1 па 408$ 2С1910С У А 2016123807 ко отличающийся тем, что величина расхода распылительного газа при термическом напылении составляет от 300 до 900 л/мин. 4. Способ изготовления напыленной рабочей поверхности цилиндра в блоке цилиндров двигателя ...

Internal combustion engine with coke scraping ring in cylinder

INTERNAL COMBUSTION ENGINE AND MOUNTING RING

Reduced component internal combustion engine

An engine block is formed by a single piece lower crankcase and a single piece upper crankcase having abutting surfaces sealed with a gasket. The abutting surfaces have semicircular notches aligned with one another to form a circular opening for a crankshaft. The upper crankcase includes central section from which extends a barrel unit that contains the entire cylinder bore for a piston. An integral housing for the cylinder valves and rocker arms is formed on the barrel unit and an integral intake manifold extends from the housing. Forming the engine block from two primary components reduces the number of joints that require machining and gaskets.

Internal combustion engine with carbon scraper ring in cylinder (versions)

FIELD: mechanical engineering; two-stroke crosshead uniflow scavenging engine. SUBSTANCE: internal combustion engine has carbon scraper ring in cylinder and piston capable of moving in cylinder in longitudinal direction and furnished with piston rings sliding along inner surface of cylinder when piston is moved to form, together with pressure seal, separation between above-piston space and working chamber arranged above upper piston ring and set by upper piston ring, piston, inner surface of cylinder and cylinder cover. Carbon scraper ring projects from inner surface of cylinder, being arranged in such place along cylinder axis, that upper piston ring is located close to lower edge of carbon scraper ring when piston is in TDC. Several passage grooves are formed on cylindrical inner surface of carbon scraper ring. Grooves run with tilting relative to longitudinal axis of cylinder from lower surface of upper surface of carbon scraper ring. Passage grooves can be formed also in cylindrical outer surface of piston top arranged above upper piston ring. EFFECT: increased reliability. 18 cl, 6 dwg 6зос стс пы сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2 153 089 ' 13) С2 Е 02 В 77/04 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97117450/06, 28.06.1996 (24) Дата начала действия патента: 28.06.1996 (30) Приоритет: 07.07.1995 ОК 0804/95 (46) Дата публикации: 20.07.2000 (56) Ссылки: СВ 1249685 А, 13.10.1971. СВ 2009884 А, 20.06.1979. ОЕ 3543688 АЛ, 19.06.1987. \$ 4414141 А, 02.10.1984. ЕК 2322269 АЛ, 25.03.1977. ($ 3476093 А, 04.11.1969. ЕК 999612 А, 04.02.1952. 54 1420215 АЛ, 30.08.1988. (85) Дата перевода заявки РСТ на национальную фазу: 22.10.1997 (86) Заявка РСТ: ОК 96/00295 (28.06.1996) (87) Публикация РСТ: \М/О 97/03280 (30.01.1997) (98) Адрес для переписки: 129010, Москва, ул.Большая Спасская 25, стр.3, ООО "Городисский и Партнеры", Томской Е.В. (71) Заявитель: МАН Б ЭНД В ДИЕСЕЛЬ А/С (ОК) (72) Изобретатель: ...

Energy conseving exhaust passage for an internal combustion engine

Each engine cylinder has two exhaust valves operated together by a common rocker arm through a common tappet. The exhaust passage(16) from each valve runs parallel to the valve stems and then bends at an angle to join a common exhaust passage(8). The inlet section of the common passage contains a dividing wall(54), which keeps the two streams from the two valves separate for the first part of their flow after their change of direction. The second valve stem passes through a slot in the dividing wall. The arrangement allows large gas flows with low hydraulic losses improving enine efficiency.

INTERNAL COMBUSTION ENGINE HEAD

La culasse comporte une face combustion qui délimite une chambre de combustion d'un cylindre du moteur. La face combustion comporte au moins deux orifices (10, 20) qui débouchent dans la chambre de combustion et qui sont séparés par une zone relativement étroite dénommée « pontet ». Il est réalisé dans le pontet une forme en creux (32) par enlèvement de matière, de manière à augmenter la largeur du pontet et, en conséquence, à renforcer la tenue thermomécanique du pontet. Véhicules automobiles. Culasses de moteurs à combustion interne. Culasses de moteurs à combustion interne à trois cylindres essence. The cylinder head has a combustion face which delimits a combustion chamber of a cylinder of the engine. The combustion face comprises at least two orifices (10, 20) which open into the combustion chamber and which are separated by a relatively narrow zone called "bridge". It is made in the bridge a hollow form (32) by removal of material, so as to increase the width of the bridge and, consequently, to strengthen the thermomechanical behavior of the bridge. Motor vehicles. Cylinders of internal combustion engines. Cylinders of three-cylinder gasoline internal combustion engines.

PRECOMBUSTION CHAMBER IN A CYLINDER HEAD OF A DIESEL ENGINE

A.CHAMBRE DE PRECOMBUSTION. B.CHAMBRE CARACTERISEE EN CE QU'ENTRE LA CHAMBRE DE PRECOMBUSTION 10, 11 ET LA TETE DE CYLINDRE 14, IL EXISTE AU MOINS UN INTERVALLE 15 PAR RAPPORT A LA CHAMBRE DE COMBUSTION PRINCIPALE 19 ET LA MATIERE CERAMIQUE PROTEGEE PAR RAPPORT A LA TETE DE CYLINDRE 14 METALLIQUE ET LE CAS ECHEANT PAR RAPPORT A D'AUTRES METAUX, PAR L'INTERMEDIAIRE D'UN MOYEN D'ISOLATION THERMIQUE. C.L'INVENTION S'APPLIQUE AUX MOTEURS DIESEL. A. PRECOMBUSTION CHAMBER. B. CHAMBER CHARACTERIZED IN THAT BETWEEN THE PRECOMBUSTION CHAMBER 10, 11 AND THE CYLINDER HEAD 14, THERE IS AT LEAST AN INTERVAL 15 FROM THE MAIN COMBUSTION CHAMBER 19 AND THE CERAMIC MATERIAL PROTECTED FROM THE HEAD OF METAL CYLINDER 14 AND WHERE APPLICABLE IN RELATION TO OTHER METALS, THROUGH A MEANS OF THERMAL INSULATION. C. THE INVENTION APPLIES TO DIESEL ENGINES.

METHOD FOR MANUFACTURING ALUMINUM COLOR ALLOY PARTS COMPRISING AN INSERT AND CULASSE OF AN INTERNAL COMBUSTION ENGINE OBTAINED BY THIS PROCESS.

La présente invention concerne un procédé de fabrication de pièces en alliage d'aluminium coulé comportant un insert. Cet insert est composé d'un matériau composite à matrice métallique, qui est constitué par un renfort à base de fibres céramiques telles que des fibres d'alumine ou d'alumine - silice formant feutre, imprégné sous haute pression par un alliage d'aluminium différent de ou identique à l'alliage de coulée. L'invention trouve application dans l'industrie automobile pour la fabrication de culasses en alliage d'aluminium. The present invention relates to a method of manufacturing cast aluminum alloy parts comprising an insert. This insert is composed of a composite material with a metal matrix, which is constituted by a reinforcement based on ceramic fibers such as alumina or alumina fibers - silica forming felt, impregnated under high pressure with an aluminum alloy different from or identical to the casting alloy. The invention finds application in the automotive industry for the manufacture of aluminum alloy cylinder heads.

Process for preventing cracking of machine parts

INTERNAL COMBUSTION ENGINE CYLINDER HEAD

La culasse comporte deux canaux : admission 2 et échappement 3, terminés par des sièges 4, 5. L'entre-sièges 7 est soumis à de fortes sollicitations thermiques. Pour protéger cette zone et bien évacuer la chaleur, il est prévu une plaque 9 conductrice de la chaleur, qui comporte un espace creux 10 sur l'entre-sièges et des zones élargies 11, 12 bien appliquées sur les zones bien refroidies de la culasse. L'entre-sièges est protégé des hautes températures et il ne s'y forme plus de fissures, tandis que la chaleur est bien évacuée par les parties larges de la plaque. The cylinder head has two channels: intake 2 and exhaust 3, terminated by seats 4, 5. The between-seats 7 is subjected to strong thermal stresses. To protect this area and properly evacuate the heat, a heat-conducting plate 9 is provided, which has a hollow space 10 on the between-seats and enlarged areas 11, 12 well applied to the well-cooled areas of the cylinder head. . The between-seats is protected from high temperatures and no more cracks form there, while the heat is well evacuated by the wide parts of the plate.

Patent FR2663250B1

Arrangement of metal inserts for cylinder head expansion joints of an internal combustion engine.

Reduced component internal combustion engine

An engine block is formed by a single piece lower crankcase and a single piece upper crankcase having abutting surfaces sealed with a gasket. The abutting surfaces have semicircular notches aligned with one another to form a circular opening for a crankshaft. The upper crankcase includes central section from which extends a barrel unit that contains the entire cylinder bore far a piston. An integral housing for the cylindcsr valves and rocker arms is formed on the barrel unit and an integral intake manifold extends from the housing. Forming the engine block from two primary components reduces the number of joints that require machining and gaskets.

CYLINDER SHIRT AND CYLINDER BLOCK

L'invention porte sur une chemise (2) de cylindre pour l'habillage de la paroi cylindrique d'un cylindre d'un moteur à combustion interne, la chemise (2) ayant une paroi intérieure (3) destinée au guidage d'un piston en translation et une paroi extérieure (4) destinée à prendre appui sur la paroi cylindrique du cylindre, les parois intérieure (3) et extérieure (4) de la chemise de cylindre étant sensiblement co-cylindriques et délimitant entre elles un bord supérieur (5) de la chemise destiné à recevoir au moins une partie d'un joint de culasse, la paroi extérieure (4) de la chemise de cylindre (2) comprenant une partie supérieure (6) évasée, caractérisée en ce que la paroi extérieure (4) est revêtue, sur tout ou partie de sa surface mais pas sur la partie supérieure (6) évasée qui est nue, d'un revêtement (8) apte à favoriser la liaison mécanique entre la paroi extérieure et une pièce métallique coulée autour de ladite paroi extérieure. Bloc cylindres et véhicule automobile associés.

Method for the cylinder liner of internal combustion engine and for manufacturing cylinder liner

一种制造用于车辆推进系统的发动机机体的气缸衬套的方法，以及由该方法制成的气缸衬套。该方法包括提供具有圆柱形内表面的气缸衬套模具，掩盖圆柱形内表面的第一部分，施加涂层到圆柱形内表面的第二部分，并通过固化气缸衬套模具中的熔融金属形成气缸衬套。

PRE-COMBUSTION CHAMBER IN A CYLINDER HEAD OF A DIESEL ENGINE

Diesel engine cylinder gasket - has cut=out below swirl combustion chamber to reduce thermal stress

The cylinder gasket (13) of a Diesel engine with separate swirl combustion chambers is cut-out (23) above the cylinder bore. The cut-out is extended (40) to include the area below the swirl chamber. This minimises the thermal stresses set up by contact between the gasket and the swirl chamber insert (37). The radius r1 of cut-out (40) is about 2mm smaller than the radius r2 of the swirl chamber insert (37). The gasket is made of soft material and the edge has metallic reinforcement (24) with extensions (42) in the critical region.

Patent IN154185B

Internal combustion engine having a coke scraping ring in its cylinder

INTERNAL COMBUSTION ENGINE WITH BASE.

"COMBUSTION CHAMBER IN A CYLINDER HEAD OF A DIESEL ENGINE"

INTERNAL COMBUSTION ENGINE THAT HAS A CARBON DEPOSIT SCRAPER RING IN A CYLINDER.

UN MOTOR DE CRUCETA DE DOS TIEMPOS CON BARRIDO DE FLUJO CONTINUO TIENE UN ANILLO RASPADOR DE COQUE EN UN CILINDRO Y UN PISTON (18) DESPLAZABLE LONGITUDINALMENTE EN EL CILINDRO Y PROVISTO DE AROS DE PISTON (19, 19 ) QUE SE DESLIZAN A LO LARGO DE LA SUPERFICIE INTERIOR SUSTANCIALMENTE CILINDRICA DEL CILINDRO AL DESPLAZARSE EL PISTON Y CREAN UNA SEPARACION ESTANQUIZANTE A LA PRESION ENTRE EL VOLUMEN BAJO EL PISTON Y LA CAMARA DE TRABAJO (20), QUE ESTA SITUADA SOBRE EL ARO DE PISTON MAS ALTO Y ESTA DEFINIDA POR EL ARO DE PISTON MAS ALTO (19 ), EL PISTON (18), LA SUPERFICIE INTERIOR DEL CILINDRO Y LA CUBIERTA DEL CILINDRO (8). EL ANILLO RASPADOR DE COQUE (23) SOBRESALE DE LA SUPERFICIE INTERIOR DEL CILINDRO Y SE EXTIENDEN ANULARMENTE A LO LARGO DE LA MISMA EN UNA POSICION AXIAL DE MODO QUE EL ARO DE PISTON MAS ALTO SE POSICIONA CERCA DEL BORDE INFERIOR DEL ARO RASPADOR DE COQUE CUANDO EL PISTON ESTA EN SU POSICION DE CONTRAPUNTO SUPERIOR. EN SU SUPERFICIE INTERIOR CILINDRICA, EL ANILLO RASPADORDE COQUE (23) ESTA PROVISTO DE VARIOS SURCOS DE ESCAPE (24) QUE SE EXTIENDEN OBLICUAMENTE EN RELACION CON EL EJE LONGITUDINAL DEL CILINDRO DESDE LA SUPERFICIE INFERIOR HASTA LA SUPERFICIE SUPERIOR DEL ANILLO RASPADOR DE COQUE. ALTERNATIVAMENTE, LOS SURCOS DE ESCAPE PUEDEN DISPONERSE EN LA SUPERFICIE EXTERIOR CILINDRICA DE LA SECCION DE PISTON MAS ALTA (21) SITUADOS SOBRE EL ARO DE PISTON MAS ALTO. A TWO-STROKE CROSS ENGINE WITH CONTINUOUS FLOW SWEEP HAS A COKE SCRAPER RING ON A CYLINDER AND A PISTON (18) LONGITUDALLY MOVABLE IN THE CYLINDER AND FITTED WITH PISTON RINGS (19, 19) THAT SLIDE THROUGH THE SUBSTANTIALLY CYLINDRICAL INTERIOR SURFACE OF THE CYLINDER AS THE PISTON DISPLACES AND CREATES A SEALING SEPARATION TO THE PRESSURE BETWEEN THE VOLUME UNDER THE PISTON AND THE WORKING CHAMBER (20), WHICH IS LOCATED ON THE HIGHEST PISTON RING AND IS DEFINED BY THE HIGHEST PISTON RING. HIGHEST PISTON (19), THE PISTON (18), THE INNER SURFACE OF THE CYLINDER AND THE CYLINDER COVER (8). THE ...

Arrangement of metal inserts for cylinder head expansion joints of an internal combustion engine.

Agencement d'inserts métalliques 10, composés d'un corps 14 raccordé à un bord plié formant collet 15 disposés avant la coulée, pour former au moins un joint d'expansion, dans une culasse de moteur à combustion interne comportant plus de deux canaux par cylindre, séparés par des zones soumises à des contraintes thermiques. Ces inserts sont reliés entre eux par des languettes ou cloisons 20, 21 venues de forme avec lesdits inserts pour former une grappe 8 disposée et maintenue dans le moule de la culasse de façon que chacun des inserts élémentaires 10 se trouve implanté, après la coulée, dans l'une des zones de contrainte située entre deux canaux adjacents. Application au moulage des culasses de moteurs diesel.

Method for producing a sprayed cylinder running surface of a cylinder crankcase of an internal combustion engine and such a cylinder crankcase

FIELD: technological processes. SUBSTANCE: invention relates to methods for applying coatings, in particular to a method for applying coatings to a cylinder running wall of a cast cylinder crankcase of an internal combustion engine. A cylinder inner wall of a cast cylinder crankcase of the internal combustion engine, the coating is formed by thermal spraying wherein an inert gas is used as the atomizer gas. Atomizer gas consumption is from 300 to 900 l/min, the mass throughput of the coating material is from 8 to 22.5 kg/h. EFFECT: formed coating provides high corrosion resistance of the cylinder running surface of a cylinder crankcase of an internal combustion engine. 9 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 647 064 C2 (51) МПК C23C 4/12 (2006.01) F02F 1/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C23C 4/06 (2006.01); C23C 4/134 (2006.01) (21)(22) Заявка: 2016123807, 12.08.2014 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): КС ХУАЮЙ АЛУТЕК ГМБХ (DE) Дата регистрации: 13.03.2018 20.11.2013 DE 10 2013 112 809.2 (43) Дата публикации заявки: 25.12.2017 Бюл. № 36 10308563 B3, 19.08.2004. EP 1340834 A2, 03.09.2003. WO 2013/060552 A1, 02.05.2013. RU 2134810 C1, 20.08.1999. SU 1785290 A1, 20.06.1996. (45) Опубликовано: 13.03.2018 Бюл. № 8 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.06.2016 2 6 4 7 0 6 4 (56) Список документов, цитированных в отчете о поиске: US 6001426 A, 14.12.1999. DE Приоритет(ы): (30) Конвенционный приоритет: R U 12.08.2014 (72) Автор(ы): ШРАММ, Леандер (DE), КЛИМЕШ, Др. Кристиан (DE) EP 2014/067246 (12.08.2014) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 4 7 0 6 4 WO 2015/074775 (28.05.2015) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ИЗГОТОВЛЕНИЯ НАПЫЛЕННОЙ РАБОЧЕЙ ПОВЕРХНОСТИ ЦИЛИНДРА В БЛОКЕ ЦИЛИНДРОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО ...

CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE.

Insert for a cylinder sleeve or for a cylinder of an internal combustion engine

The present invention relates to an insert (10, 110) for a cylinder sleeve (20, 120, 220) or for a cylinder (222) of an internal combustion engine (30, 130, 230) for reducing the diameter of the cylinder sleeve (20, 120, 220) or of the cylinder in the region (21, 221) of the upper dead center position of a piston (33, 233) guided into the cylinder sleeve (20, 120, 220) or the cylinder. According to the invention, the insert (10, 110) is in the form of an open, pretensioned ring with a ring joint (11, 111), and is held radially by its outwards acting radial forces and axially by a recess (121; 221) in the cylinder sleeve (20, 120, 220) or the cylinder (222) in such a way that the radial surface pressure around the circumference is approximately constant, wherein the ratio of the ring wall thickness (d) to the internal diameter (D) of the cylinder sleeve or the cylinder amounts to between 0.001 and 0.02.

There is the cylinder sleeve of wear resistant inner layer

本发明涉及一种汽缸套(2)，具有外罩层(4)和设置在汽缸套的内侧的耐磨内层(6)，其中，耐磨内层(6)的厚度在汽缸套(2)的至少一个轴向末端减小。

Anode-oxide coating of internal combustion engine and method of making same

FIELD: engines and pumps. SUBSTANCE: invention relates to internal combustion engine (ICE) and can be used for application of coating on its working surface. Anode-oxide coating of ICE formed at least on part of wall surface facing combustion chamber, is characterised by that it contains voids and nanovlves, smaller in size than voids, wherein at least part of voids with plugged with plugging material obtained by conversion of sealing material into plugging material, and at least part of nanovalves is not plugged. Method of producing anode-oxide coating of ICE includes formation of anode-oxide coating on at least part of wall surface facing combustion chamber, sealing nanovalves circuit, anode-oxide coating has inside voids and nanovalves which are smaller than voids, applying sealant on voids and plugging at least part of voids with plugging material obtained by conversion of sealing material to form anode-oxide coating, in which at least part of nanovalves are not plugged. EFFECT: low heat conductivity and heat capacity of coating, high heat-insulating properties and parameters of amplitude of cyclic temperature of working surface of combustion chamber. 7 cl, 9 dwg, 3 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 583 496 C2 (51) МПК C25D 11/18 (2006.01) F02F 3/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014109053/02, 11.09.2012 (24) Дата начала отсчета срока действия патента: 11.09.2012 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.10.2015 Бюл. № 29 (45) Опубликовано: 10.05.2016 Бюл. № 13 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 14.04.2014 (86) Заявка PCT: 2 5 8 3 4 9 6 (56) Список документов, цитированных в отчете о поиске: WO 2010/119977 A1, 21.10.2010. RU 2143573 С1, 27.12.1999. RU 2251596 С2, 10.05.2005. ЕP 2003319 A1, 17.12.2008. (73) Патентообладатель(и): ТОЙОТА ДЗИДОСЯ КАБУСИКИ КАЙСЯ (JP) R U 12.09.2011 JP 2011-198812 (72) Автор(ы): ...

Improvements in combustion engines

Improvements to the construction and operation of reciprocating internal combustion engines are described. The invention may have particular application to compression ignition engines. The constructional modifications relate to components designed to be inserted between a cylinder head and piston bore where those components effect a reduction in the combustion volume thereby reducing the geometrical compression ratio of the engine. These components may be integrated with the cylinder head and include a cylindrical sleeve or a spacer plate. These components can further incorporate a heating/cooling system to regulate the combustion chamber temperature during various phases of the engine's operation. A method is described which may be used in conjunction with the modified engine whereby turbulence from a turbo charging unit is preserved in the intake air thus enhancing air/fuel mixing. Further variations are made to the timing regime of the engine including delaying closure of the inlet valves and early opening of the exhaust valves. Further operating modifications include varying the shape of the air/fuel mixture cloud which is injected into the combustion volume so that the mixture is forced symmetrically radially outward from the point of injection and combining this step with turbo charging the intake air in such a manner so as to produce turbulence in the air fuel mixture within the combustion volume. This latter operating regime includes early opening of the exhaust valve and late closure of the inlet valve. Modified piston shapes are described as are modifications to the combustion chamber shape resulting from the use of the spacer place or ring components designed to reduce the geometrical compression ratio of the regime.

Thermal fatigue resistant cylinder head

A cylinder head for a valve-controlled internal combustion engine having a bottom surface which faces into an associated combustion chamber and a plurality of spaced valve openings therethrough and also an injector bore for induction of fuel or ignition spark through the combustion face of said cylinder head into the cylinder, said bottom surface or combustion face of said cylinder head having a circular cut-out portion located radially spaced between said injector bore and the center lines of said valve openings, with said cut-out possibly intersecting each of said valve openings.

Internal combustion engine having coke scraping ring in cylinder

一种单流扫气的二冲程十字头型发动机，在汽缸内有一个刮炭环并有一个可在汽缸内沿纵向移动且设有活塞环(19，19’)的活塞(18)，这些活塞环在活塞移动时沿汽缸的基本上圆筒形的内表面滑动并在活塞下方容积和工作室(20)之间产生压力密封隔离，工作室(20)安置在活塞的最上活塞环上方并由最上活塞环(19’)、活塞(18)、汽缸内表面和汽缸盖(8)形成。刮炭环从汽缸内表面凸出并环形地沿其延伸在一个轴向位置中，使得当活塞位于其顶部死点位置时最上活塞环位于刮炭环下边缘附近。刮炭环(23)在其圆筒形内表面中设有若干泄漏槽(24)，这些泄漏糟从刮炭环的下表面到项面相对于汽缸的纵轴倾斜地延伸。或者是，泄漏糟可以设置在位于最上活塞环上方的最上活塞区段(21)的圆筒形外表面中。

CYLINDER HEAD FOR COMBUSTION MACHINES

Internal combustion engine and liner installation ring

一种内燃机，包括：缸体，它有一个或者多个气缸；缸套，呈管状形状并且设置在气缸的内部中；活塞，在缸套内往复运动并且具有由位于活塞顶部和最上部环槽之间的活塞外边缘所形成的顶部环槽脊部分；及缸套安装环，在气缸内形成环形台阶部，环形台阶部伸向缸套的内边缘。缸套安装环以这样的方式设置在缸体或者缸套内，以致缸套安装环的底表面面对缸套的最上部。缸套安装环设置在根据当活塞到达上止点时顶部环槽脊部的上端位置合适的位置上。缸套安装环设定成以0.05mm或者更大到0.5mm或者更小的长度从缸套内边缘沿着向内方向伸出。

Cylinder head seal

The seal (1) has a transmission partial-area (5) for transmitting a contact force between a cylinder head (3) and a cylinder sleeve (2), and a weak partial area (6), where only small or no contact force is transmitted between the head and the sleeve in a mounted condition. The partial areas are designed as a single piece and made from matrix-material e.g. steel. A hollow space is provided in the weak partial area, where the seal is designed such that it seals an entire front area of the sleeve against the cylinder head.

CYLINDER FEED IN A PISTON ENGINE

Patent RU2017134960A3

’ВИ“” 2017134960” АЗ Дата публикации: 21.12.2020 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017134960/12(061250) 05.10.2017 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 192016012719.8 25.10.2016 РЕ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ГОЛОВКА БЛОКА ЦИЛИНДРОВ С ПРИМЫКАЮЩИМ ВЫПУСКНЫМ КОЛЛЕКТОРОМ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ Заявитель: МАН ТРАК УНЛ БАС АГ, РЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е02Е 1/42 (2006.01) ЕО1М 13/10 (2010.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ЕО1М13/00-Е01М13/20; Е02Е1/00-202Е1/42; 0211/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепе Соозе, Рабеагсв, Оцез{е]-Огьи, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к ...

Light-alloy cylinder-head for a valve-controlled internal-combustion engine

ABSTRACT OF THE DISCLOSURE A light-metal cylinder-head having an oxide-layer for protection of the internal surface and, in the area be-tween the valve openings, a hole for an injection-nozzle, igni-tion-aid or firing pocket, sheet-steel inserts being cast into the head in the said area between the valve openings, the said inserts being themselves coated with aluminum or ceramic to protect them when the surface of the combustion chamber is oxidized.

Protect ring

Piston engine cylinder liner flame ring is grooved in high-thermally loaded areas to reduce ring wall thickness but increase elasticity under thermal load.

Bei einem Flammring (2), der in das brennraumseitige Ende einer Zylinderbuchse (1) einer Hubkolbenbrennkraftmaschine eingesetzt ist, lässt sich dadurch eine hohe thermische Belastbarkeit erreichen, dass die Wandstärke des Flammrings (2) partiell in thermisch hoch beanspruchten Bereichen zur Erhöhung seiner Elastizität vermindert ist.

PROTECTION AGAINST ABNORMAL COMBUSTION IN AN ENGINE AND PISTON CONFIGURATION FOR SAME

Ein Motor (12) beinhaltet eine Zylinderlaufbuchse (34) und einen innerhalb der Zylinderlaufbuchse (34) beweglichen Kolben (40), einen Spalt (68), der zwischen einem oberen Steg (64) des Kolbens (40) und der Zylinderlaufbuchse (34) gebildet ist, und einen Öleintrittsspalt (70), der zwischen einem oberen Ring des Kolbens (40) und der Zylinderlaufbuchse (34) gebildet ist. Der Motor (12) beinhaltet auch einen Inhibitor für anormale Verbrennung (72) mit einer Ölrückgewinnungsfläche (74), die dem Spalt (68) ausgesetzt und so ausgerichtet ist, dass sie die Migration von Öl (75) aus dem Spalt (68) in Richtung einer Brennkammer (36) im Motor (12) beschränkt. Der Inhibitor für anormale Verbrennung (72) beinhaltet eine Nutstruktur (95), die als Substrat zumindest entweder die Zylinderlaufbuchse (34) oder den Kolben (40) aufweist. Eine diesbezügliche Methodik ist ebenfalls offenbart. An engine (12) includes a cylinder liner (34) and a piston (40) movable within the cylinder liner (34), a gap (68) formed between an upper land (64) of the piston (40) and the cylinder liner (34) is formed, and an oil entry gap (70) formed between an upper ring of the piston (40) and the cylinder liner (34). The engine (12) also includes an abnormal combustion inhibitor (72) having an oil recovery surface (74) exposed to the gap (68) and oriented to prevent the migration of oil (75) from the gap (68) into Limited direction of a combustion chamber (36) in the engine (12). The abnormal combustion inhibitor (72) includes a groove structure (95) having at least one of the cylinder liner (34) and the piston (40) as a substrate. A related methodology is also disclosed.

Cylinder head and engine

CYLINDER SHAPER FOR AN INTERNAL COMBUSTION ENGINE AND BLOCK CYLINDERS EQUIPPED WITH SUCH A SHIRT

L'invention concerne une chemise de cylindre (2) pour l'habillage de la paroi cylindrique d'un cylindre (A1) d'un moteur à combustion interne. La chemise (2) comprend une paroi intérieure (3) destinée au guidage d'un piston en translation et une paroi extérieure (4) destinée à prendre appui sur la paroi cylindrique du cylindre. La paroi extérieure (4) de la chemise de cylindre (2) comprend une partie supérieure (6) en évasement vers un bord supérieur (5) de la chemise (2) délimité entre les parois intérieure (3) et extérieure (4) de la chemise de cylindre.L'invention concerne également un bloc cylindres d'un moteur à combustion interne comportant au moins deux cylindres (A1, B1), chaque cylindre étant équipé d'une telle chemise de cylindre. The invention relates to a cylinder liner (2) for cladding the cylindrical wall of a cylinder (A1) of an internal combustion engine. The liner (2) comprises an inner wall (3) for guiding a piston in translation and an outer wall (4) intended to bear against the cylindrical wall of the cylinder. The outer wall (4) of the cylinder liner (2) comprises an upper portion (6) flaring towards an upper edge (5) of the liner (2) delimited between the inner (3) and outer (4) walls of The invention also relates to a cylinder block of an internal combustion engine comprising at least two cylinders (A1, B1), each cylinder being equipped with such a cylinder liner.

CYLINDER SHIRT FOR AN INTERNAL COMBUSTION ENGINE WITH AN ALTERNATIVE PISTON.

Internal combustion engine having improved cooling arrangement

An improved cooling fluid passage configuration provides for uniformity of cooling about the entire periphery of a cylinder liner of an internal combustion engine in addition to improved cooling by increasing the flow in an upper water jacket of a split water jacket design. The cooling fluid passage configuration also provides a reduced pressure drop between a cylinder liner cooling fluid inlet and a cylinder head cooling fluid outlet when compared to conventional designs with a single head feed line, permitting use of a smaller cooling fluid pump and leading to increased efficiency of the engine.

An internal combustion engine having a coke scraping ring in a cylinder

Cylinder cover for diesel engine

Objects of a cylinder cover (2) for diesel engine is to prevent the interference of mists between a plurality of fuel valves (10), thereby enhancing the spray efficiency, and to prevent troubles of burning of nozzle (10f) caused by the collision of mist sprayed from the adjacent fuel valve and increase in thermal stress caused by local overheat of combustion chamber surface due to the collision of mist. To achieve these objects, fuel valves (10) are mounted in a side wall (2b) of the cylinder cover (2) so that the centerline thereof is substantially at right angles to the cylinder centerline (Z). Further, the injection angle of the fuel valve (10) is set so as to be an acute angle not larger than 90 to prevent local collision of mist with the combustion chamber wall surfaces, and the volume of the volume portion at the tip of the fuel valve (10) is decreased to the minimum.

Cylinder liner for internal combustion engine

包括内孔锯痕的用于发动机缸体的气缸衬套包括第一发动机缸体粘贴表面和第二发动机缸体粘贴表面。第二发动机缸体粘贴表面在气缸衬套和发动机缸体之间具有的粘贴水平低于第一发动机缸体粘贴表面。第二发动机缸体粘贴表面从衬套的轴向端部延伸的距离大于发动机缸体的内孔部分中锯痕的深度。

Cylinder jacket with chamfering and anti-polishing oversleeve

一种用于包括在内燃发动机(100)的缸膛(104)中的气缸套组件包括套筒状气缸套(120)和防抛光套袖(170)以从沿着气缸套(120)的轴线(108)可往复移动的活塞(106)刮去燃烧沉积物。火墙(160)可以从气缸套(120)的第一衬套端部(124)轴向突出，并且可以具有布置在其中的围绕轴线(108)的倾斜成角度的倒角(164)。为了在上止点位置时将防抛光环(170)定位在活塞(106)的顶部槽岸附近，防抛光环(170)可以包括布置在第一套袖端部(174)处的套袖头部(182)，其大体上为三角形并且具有与倾斜成角度的倒角(164)对应的成角度的底切(182)。当配合时，倒角(164)和成角度的底切(182)彼此抵靠。

Head for an internal combustion reciprocating engine

The present invention is concerned with a head for an internal combustion reciprocating engine, with a couple of spark-plugs for each combustion chamber, wherein the structure of the head is optimized in order to improve the preformance of the engine, and to secure the necessary structural stiffness.

Cylinder cover for diesel engine

Internal combustion engine with fluid-cooled cylinder liner

An internal combustion engine with a block cylinder head 7 and a fluid-cooled cylinder liner 1 has a cooling chamber between the cylinder liner 1 and the crankcase 2. The cooling chamber includes at least two partial cooling chambers 9a, 9b which are connected only by a connecting channel 8, and wherein the first partial cooling chamber 9a, which is adjacent to the cylinder head 7, is open in the direction of cylinder head 7 and passes over into a slot-shaped annular chamber 10 in cylinder head 7. A cooling arrangement for a cylinder liner for use with block cylinder heads is provided in which the cooling adjusts itself according to the quantities of heat which need to be removed, i.e., the thermal load is more uniformly carried over the entire axial length of the cylinder liners.

Thermal fatigue resistant cylinder head

Rotary unit with hollow shaft motor

为了提供一种用于用来对内部空间(40)进行热覆层的覆层枪装置(100)的旋转单元(10)，提出，旋转驱动器(13)实施为同轴于工具容纳件(14)的旋转轴线(15)的空心轴马达(13a)，并且其中，工具容纳件(14)和覆层材料供应装置(11)以及工艺介质供应装置(12)相对于空心轴马达(13a)布置在中央。为了此外提供用于对内部空间(40)进行热覆层的覆层枪装置(100)，提出，设置有这种旋转单元(10)；至少一个升降执行器(23)，该升降执行器用于旋转单元(10)相对于要覆层的内部空间(40)的轴向和/或横向定位；固定的供应接头(24,25,26)，所述供应接头用于将电流供应至覆层枪(30)、以及用于覆层材料供应装置(11)和用于工艺介质供应装置(12)。

CYLINDERLOCK FOR COMBUSTION ENGINES

Arrangement in a combustion engine

一种内燃机中的装置，包括汽缸（11）、汽缸头（12）、汽缸头密封件（16）和刮环（17）。弹性刮环密封件（23、30）靠近刮环的末端表面（20、21）的其中之一或二者设置，并且把靠近刮环形成的体积从燃烧室中分离出。从燃烧室分离出这些体积防止了在这些体积中不完全燃烧的剩余物的积累。这使得提高发动机效率、降低排放值和延长发动机使用寿命成为可能。

Light alloy insert for the formation of an expansion joint in combustion chamber walls of internal combustion engines formed from cast light alloy, especially cylinder head bases of diesel internal combustion engines

For a light alloy insert for the formation of an expansion joint in combustion chamber walls of internal combustion engines formed from cast light alloy, especially cylinder head bases of diesel internal combustion engines, it is proposed that the insert of approximately T-shaped cross-section with a combustion chamber-side web have an expansion joint essentially extending on the web into the transitional area with the transversely aligned head section and that the other area of the light alloy insert with no parting layer have a metal connection to the combustion chamber wall and/or the cylinder head base, the light alloy insert having a higher thermal stability than the casting material of the combustion chamber wall.

For handling the method and system of automobile engine cylinder-body

一种用于处理发动机缸体的方法和系统，其包括汽缸衬套。发动机缸体所具有的第一材料相较形成汽缸衬套的第二材料具有不同的热膨胀系数。该方法包括为汽缸衬套提供绝热屏障，并且对发动机缸体淬火。在淬火期间，与形成发动机缸体的第一材料的冷却速率相比，绝热屏障为形成汽缸衬套的第二材料提供较低的冷却速率。

Piston engine

用于形成活塞发动机(1)的气缸(2)的气缸套(5)包括通孔(9)，所述通孔(9)被配置成允许压力从所述气缸(2)传输到压力传感器(3)，并且所述通孔(9)布置在所述气缸套(5)的壁中的这样的高度，使得当所述气缸套(5)被安装在所述发动机(1)中以形成气缸(2)并且所述气缸(2)内的活塞(6)处于上止点时，所述通孔(9)在所述活塞(6)的所有活塞环(10)上方的位置处通向所述气缸(2)内。

Patent IN168097B

Cylinder liner of internal combustion engine

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