• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CYLINDER SHIRT WITH CONNECTION LAYER A cylinder jacket is shown for the engine block assembly of an internal combustion engine. The cylinder liner includes a liner member that is formed of cast iron and has an outer surface. A first portion of the outer surface of the jacket member is machined to a reduced outside diameter. The aluminum-based material is then thermally sprayed onto the first machined portion, while a second portion of the outer surface remains uncoated. The coated cylinder liner is then placed in a mold, and another material based on aluminum is melted around the coated cylinder liner to form the engine block assembly. During the casting process, the two aluminum-based materials form a strong intermetallic bond between the liner member and the engine block.
    公开号:BR112016001120B1
    申请号:R112016001120-1
    申请日:2014-07-16
    公开日:2020-10-20
    发明作者:Eric Allan Highum
    申请人:Tenneco Inc；
    IPC主号:
    专利说明:

    CROSS REFERENCE WITH RELATED APPLICATION
    [0001] This American utility patent application claims the benefit of provisional patent application serial number 61 / 846,973 filed on July 16, 2013, the entire content of which is incorporated herein by reference in its entirety. BACKGROUND OF THE INVENTION 1. Field of the invention
    [0002] The invention relates generally to cylinder liners for internal combustion engines, sets of engine blocks including cylinder liners, and methods of manufacturing them. 2. Description of prior art
    [0003] Currently, preferably, engines are designed to be smaller and lighter in order to decrease the installation site, reduce engine weight, and improve fuel economy. However, the smaller size can cause problems and concerns regarding finding locations and positions for the various components and for machining. One area of concern is the smaller connection area between the holes in the piston cylinder openings and the engine block. When cooling between the connections and the holes is required, the drilled holes and sawn slots can be machined in the connection areas. Due to the smaller hole spacing, and if the liners are placed in the cylinders, it may be difficult to machine the sawn grooves and / or drill the holes without contact with the cylinder liner and damage the cutting tools. This can cause the engine block to be lost and / or the manufacturing line to stop.
    [0004] The downward facing of the outer surface of the cylinder liners can create some additional space in the connection regions between the holes for the machining of the holes and the grooves. However, this can result in poor thermal conductivity and large bore distortion magnitudes due to the lack of physical and or mechanical connection between the cylinder liner and the engine block. These conditions are undesirable in these critical regions of the engine block. SUMMARY OF THE INVENTION
    [0005] One aspect of the invention features a cylinder liner for an internal combustion engine that produces a better connection with the engine block. The cylinder liner includes a liner member that extends longitudinally from the top end to the bottom end and which has a length between the top and bottom ends. The shirt member includes an inner surface that extends around a central axis and an outer face facing the opposite side. The outer surface has a first outer diameter along a first portion of the length and a second outer diameter along a second portion of the length, where the first outer diameter is smaller than the second outer diameter. A bonding layer formed of an aluminum-based material is applied to the outer surface along the first portion of the cylinder member.
    [0006] The invention also features a method for making the improved cylinder liner. The method includes producing the shirt member with the first outside diameter along the first portion of the length and the second outside diameter along the second portion of the length. The method also includes applying a layer of an aluminum-based material to the outer surface along the first portion of the shirt member length.
    [0007] Another aspect of the invention features an engine block assembly that includes a number of cylinder liners. Each cylinder liner includes the liner member and a layer of a first aluminum-based material applied to the outer surface along the first portion. The set also includes a block formed by a second material based on aluminum with a number of holes, each receiving one of the cylinder liners. The first aluminum-based material of the cylinder liners is bonded to the second aluminum-based material of the block.
    [0008] The invention also features a method for manufacturing the engine block assembly. The method includes producing a number of cylinder liners, and placing the number of cylinder liners in a mold. The method then includes the application of the second material based on aluminum around the amount of cylinder liners in the mold. BRIEF DESCRIPTION OF THE DRAWINGS
    [0009] Other advantages of the current invention will be presented immediately, because it will be better understood by reference to the following detailed description, when considering its connection with the attached drawings where:
    [0010] Figure 1 is a schematic view of a cylinder liner according to an example embodiment of the invention;
    [0011] Figure 1A is an expanded view of a portion of the cylinder liner of figure 1 on line 1A;
    [0012] Figure 2 illustrates a thermal spraying step in a method of fabricating the cylinder liner according to an example embodiment of the invention;
    [0013] Figure 3 illustrates a casting step in a method of fabricating an engine block assembly that includes a number of cylinder liners according to an example embodiment of the invention;
    [0014] Figure 4 is a schematic view of the engine block assembly that includes the number of cylinder liners according to an example embodiment of the invention;
    [0015] Figure 4A is a sectional view for a motor block assembly of figure 4 along line 4A;
    [0016] Figure 5 is a top view of the engine block assembly of figure 4;
    [0017] Figure 6 is an enlarged view of a portion of the engine block assembly shown in Figures 4 and 5; and
    [0018] Figure 7 illustrates the steps of a method of manufacturing the engine block assembly according to an example embodiment of the invention. DETAILED DESCRIPTION OF A VIABLE ACHIEVEMENT
    [0019] One aspect of the invention features a cylinder liner 20 for an internal combustion engine with a liner member 22 and a connection layer 24, as shown in figure 1. Connection layer 24 provides a better connection and conductivity increased heat between the metal material of the jacket member 22 and the metal material that is spilled around it, which form an engine block 26. The connecting layer 24 also produces an increased space between the adjacent cylinder liners 22 in the engine block 26.
    [0020] The cylinder liner 20 includes a liner member 22 that is formed of a metallic material. In an example embodiment, the metallic material used to form the liner member 22 is cast iron, but the liner member 22 may alternatively be formed of steel or other metallic material that is capable of withstanding temperature, pressure, and other conditions of an internal combustion engine. The metallic material used to form the liner member 22 is different from the metallic material of the engine block around it 26, and the metallic material of the liner member 22 is typically not physically and chemically bonded to the engine block 26 without the layer connection point 24.
    [0021] As shown in figure 1, the shirt member 22 extends longitudinally from one end of the top 28 to one end of the bottom 30 and has a length L between the ends of the top and bottom 28, 30. In the example embodiment , the length L of the shirt member 22 ranges from 100 mm to 150 mm. The liner member 22 also includes an inner surface 32 that extends around a central axis A and an outer surface facing the opposite side 34. The inner surface 32 of the liner member 22 extends circumferentially around the central axis A and has a cylindrical-shaped opening that extends from the top end 28 to the bottom end 30.
    [0022] The outer surface 34 of the shirt member 22 also extends circumferentially around the central axis A and has a cylindrical surface that extends from the top end 28 to the bottom end 30. The outer surface 34 has a first outer diameter Di along a first portion of length L and a second outer diameter D2 along a second portion of length L. As shown in Figure 1, the first outer diameter Di is smaller than the second outer diameter D2 . In the example embodiment, the first portion is machined at a radial distance relative to the central axis A to have the first reduced outer diameter Di. However, other methods can be used to reduce the first outer diameter D1 so that it is smaller than the second outer diameter D2. The jacket member 22 also has a thickness ti, t2 that extends from the outer surface 34 to the inner surface 32, as shown in figure 1A. The thickness ti along the first machined portion of the jacket member 22 is typically 10 to 15 mm less than the thickness te along the second portion. The thickness ti, te of the shirt member 22 can vary, depending on the application, but typically for the thickness ti along the first portion of the shirt member 22 is at least 1.8 mm.
    [0023] The first portion with the first reduced outer diameter D 1 and reduced thickness ti extends over a portion of the length L of the shirt member 22 which is less than 100% of the length L of the shirt member 22. A second portion also extends over a portion of length L of shirt member 22 which is less than 100% of length L. The first portion of outer surface 34 is typically 10% to 50% of length L of shirt member 22 , and more typically, 20 to 30% of the length L of the shirt member 22. The first portion is typically located adjacent to one of the ends 28 or 30 of the shirt member 22, in which case the second portion extends from the first portion to the opposite end 28 or 30. For example, the first portion can be located adjacent to the top end 28 of the liner member 22, as shown in figure 1, which is placed face up on the engine block 26 in the direction of a distribution tube. Alternatively, the first portion could be separated from both ends 28, 30 of the shirt member 22, for example, the first portion could be placed in the center of the shirt member 22. In this alternative case, the second portion would be located in two areas distinct, each extending from an end 28, 30 of the shirt member 22 to the first portion. In yet another embodiment, the shirt member 22 could include an amount of the first machined portions placed anywhere and separated from each other by the second portions.
    [0024] The first outside diameter along the length L of the first portion of the shirt member 22 is typically constant. However, small variations in the first outer diameter Di may be present. For example, the first outer diameter D 1 may vary by no more than 1 mm along the length L of the first portion. In one embodiment, the first portion of the outer surface 34 is shot coated before bonding layer 24 is applied. The shot coating process forms a number of depressions 36 along the outer surface 34 to assist the adhesion of the coating layer. connection 24 with the jacket member 22, as shown in figure 1A. Each depression 36 typically has a depth of no more than 1 mm.
    [0025] The second outer diameter D2 along the length L of the second portion of the shirt member 22 is also typically constant. However, small variations in the second outer diameter D2 may also be present. For example, the second outer diameter D2 may vary by no more than 1 mm along the length L of the second portion. In an alternative embodiment, the second outer diameter D2 varies more significantly over the second portion of length L. For example, the outer surface 34 may have a number of protrusions (not shown), such as ribs or protuberances, which extend radially outwardly in relation to the surrounding portion of the outer surface 34. The outer surface 34 along the second portion, alternatively, could consist of another type of engineered surface (not shown). Protrusions or other types of engineered surfaces can have an improved mechanical connection between the jacket member 22 and the molten engine block around it 26.
    [0026] The bonding layer 24 applied to the jacket member 22 is formed of an aluminum-based material. The bonding layer 24 typically covers the entire first portion of the outer surface 34, but could cover only a section of the first portion. The aluminum-based material applied to the jacket member 22, which is referred to as the first aluminum-based material, is typically the same or similar to a second aluminum-based material used to form the engine block 26. Therefore, a strong bond is formed when the second aluminum-based material is poured molten around the first aluminum-based material. The bonding layer 24 also has a thickness that can vary. Preferably, the connecting layer 24 produces an outer diameter D3 that is not greater than the second outer diameter D2 of the jacket member 22, as shown in Figure 1A. In one embodiment, the thickness t is not greater than 15 mm, for example, 10-15 mm. The bonding layer 24 can consist of a single layer or an amount of layers 24 to obtain the desired thickness.
    [0027] In an example embodiment, the aluminum-based material used to form the bonding layer 24 is an aluminum alloy, including aluminum in an amount of 85 to 90% by weight (% by weight), silicon in an amount from 10 to 15% by weight, oxygen in an amount of 0.05 to 0.15% by weight, and optionally Fe, Mg, Zn, and Mn in a total amount less than 1% by weight based on weight total aluminum alloy. In this example embodiment, the bonding layer 24 also has a porosity of less than 5%, a thermal conductivity of 80 to 120 W / mK of 50 to 400 0 C, a coefficient of thermal expansion of 20 to 24 x 10'6 / K of 20 to 150 0 C, a tensile strength of at least 170 MPa, and an elastic modulus of 40 to 70 GPa.
    [0028] In the example embodiment, the bonding layer 24 is applied to the outer surface 34 by means of thermal spraying, such as plasma spraying. However, other methods for applying the bonding layer 24 to the jacket member 22 can be used.
    [0029] Another aspect of the invention features a method of fabricating the cylinder liner 20. Firstly the method includes producing the liner member 22, like the liner member 22 described above. The geometry of the shirt member 22, however, may vary. Next, the method includes preparing the jacket member 22 for application of the bonding layer 24. Typically this includes radial machining of a portion of the outer surface 34 of the jacket member 22 to form the first portion having a reduced first outer diameter D 1 . However, methods other than machining can be used to form the first outer diameter Di.
    [0030] To better prepare the jacket member 22 for applying the bonding layer 24, the method typically includes activating the outer surface 34 along the first machined portion. This step includes removing any contaminants, oil, or corrosion from the outer surface 34. The method may also include the formation of a coarse texture along the first portion, for example, by shot coating, as described above. The shot coating process forms a number of depressions 36 which assist the adhesion of the bonding layer 24 on the jacket member 22.
    [0031] The step of applying the aluminum-based material layer, referred to as the first aluminum-based material, on the outer surface 34 along the first portion, preferably includes thermal spraying. Any type of thermal spraying technique can be used, for example, plasma spraying. Figure 2 illustrates the step of applying the first aluminum-based material to the jacket member 22 according to an example embodiment, which can be used in an automatic process or in a production process. In this embodiment, a number of machined liner members 22 are placed on a rotating axis 52 and are thermally sprayed by means of a thermal sprinkler 54 while moving longitudinally in relation to the thermal sprinkler 54. However, the connection 24 formed with the first material based on aluminum, alternatively could be applied to the first portion of the jacket member 22 using other methods. The step of applying the bonding layer 24 to the jacket member 22 may include forming a single layer or an amount of layers 24 to achieve the desired thickness t2;
    [0032] Another aspect of the invention features an engine block assembly 38 for an internal combustion engine that includes the cylinder liner with connection layer 24, and a method of fabricating the engine block assembly 38, as shown in figures 3 - 7. The engine block assembly 38 includes a number of cylinder liners 20, where each of the cylinder liners 20 includes the liner member 22 and the bonding layer 24 applied by the thermal spray method, as described above. The engine block assembly 38 also includes block 26 formed of the second material based on aluminum and having a number of holes 40, each of which receives a cylinder liner 20. The first machined portion of the cylinder liner 20 with the connecting layer 24 is typically located adjacent the top end 28 of the liner member 22 and is placed face up on the engine block 26 towards a manifold. The top end 28 of the sleeve member 22 is placed slightly below an upper surface 48 of the engine block 26.
    [0033] The jacket member 22 is formed from a metallic material different from the aluminum-based materials of the layer and block 26. In the example embodiment, the jacket member 22 is formed by the first aluminum-based material and is bonded physically and chemically with the second aluminum-based material from block 26 along holes 40. The second aluminum-based material from engine block 26 is preferably the same or similar to the first aluminum-based material from cylinder liner 20 and therefore the two materials form an intermetallic bond that includes a homogeneous mixture of the first aluminum-based material with the second aluminum-based material during the casting process. The intermetallic bond increases the thermal conductivity of the resulting engine block assembly 38 because heat from the jacket member 22 can flow through the jacket member 22 and through the bonding layer 24 to the block 26. The bonding layer 24 also reduces any distortion of hole 40 and connection areas.
    [0034] The engine block 26 of the example embodiment has a cooling chamber 44, also referred to as a water jacket, separated from each of the holes 40 by the second aluminum-based material in block 26, as shown in figures 4 - 6. The engine block 26 also includes a number of cooling passages 46, such as drilled holes or sawn grooves, which extend from the cooling chamber 4 and through a portion of said block 26 between said holes 40. The cooling passages guide the cooling fluid from the cooling chamber 44 through the engine block 26 to prevent the areas between the adjacent holes 46 from overheating.
    [0035] The outer surface 48 of the motor block 26 has a number of connection areas 42, and each connection area 42 is flat and is located between adjacent holes 40. The width of each connection area 42 located between the adjacent holes 40 and used to form the cooling chamber 44 and the cooling passages 46 are increased when machined cylinder liner 20 with connection layer 24 is used, compared to cylinder liners without connection layer 24. The figure 6 shows that the machinable connection area 42 is increased from di to d2 due to connection layer 24, where di is the distance between the second outer diameters D2 of the unmachined section portions of the adjacent cylinder liners 20, and d2 is the distance between the outer diameters D3 of the adjacent coated cylinder liners 20. This increased connection area 42 is an advantage during the manufacturing process, because it produces more space that can be used for the form action of the cooling chamber 44 and the cooling passages 46.
    [0036] Another aspect of the invention features a method of manufacturing an engine block assembly 38. The method generally includes producing a number of cylinder liners 20, including the bonding layer 24 formed by the first aluminum-based material applied to the first machined portion of the liner member 22, placing the cylinder liners 20 in a mold 50, and melting the second aluminum-based material around the amount of cylinder liners 20 in the mold 50. An example of the steps of the method is shown in figure 7.
    [0037] The first stage of production of the cylinder liners 20 can be carried out as described above. As shown in Figure 7, this portion of the method typically includes machining the outer surface 34 of the first portion of the liner member 22, for example, by spray spraying, and then applying the first aluminum-based material to the first machined portion. , for example, through thermal spray.
    [0038] The coated cylinder liners 20 are then placed in a mold 50. The casting step includes supplying the second aluminum-based material in the molten form and pouring the second aluminum-based material into the mold 50 to form the engine block 26. The second aluminum-based material bonds with the first aluminum-based material of the clamping layer 24 physically and chemically during the casting step. The mechanical and intermetallic connection created during the casting step helps to ensure that the cylinder liner 20 is strongly connected to the engine block 26.
    [0039] After the engine block 26 is cooled and solidified, it is removed from the mold 50. Subsequently, the engine block 26 is machined and / or drilled as desired or required, typically to form the connection areas 42, the cooling chamber 44 and cooling passages 46, as described above.
    [0040] Obviously, several modifications and variations of the current invention are possible in light of the above teachings that could be practiced in a way other than that specifically described, while remaining within the scope of the attached claims.
    权利要求:
    Claims (19)
    [0001]
    1. Cylinder liner (20), characterized by the fact that it comprises: a liner member (22) that extends longitudinally from a top end (28) to a bottom end (30) and having a length between said ends top (28) and bottom (30); said jacket member (22) including an inner surface (32) that extends around a central axis and an outer surface (34) facing opposite; said outer surface (34) having a first outer diameter (Di) along a first portion of said length and a second outer diameter (D2) along a second portion of said length, said first outer diameter (Di) being smaller than said second external diameter (D2); a bonding layer (24) formed of an aluminum-based material applied to said outer surface (34) along said first portion, and wherein said bonding layer (24) of an aluminum-based material is applied on said external surface (34) by thermal spray.
    [0002]
    Cylinder liner (20) according to claim 1, characterized in that said first portion is 10 to 50% of said length of said external surface (34).
    [0003]
    Cylinder liner (20) according to claim 1, characterized in that said liner member (22) is formed from a metal material other than said aluminum-based material.
    [0004]
    4. Cylinder liner (20), according to claim 1, characterized in that said external surface (34) presents a plurality of depressions (36), each of them having a depth not greater than 1 mm along the said first portion.
    [0005]
    Cylinder liner (20) according to claim 1, characterized in that said first portion of said outer surface (34) is located adjacent to one of said ends of said liner member (22), and said second portion extends from said first portion to the opposite end of said shirt member (22).
    [0006]
    A cylinder liner (20) according to claim 1, characterized in that said liner member (22) is formed of cast iron; said inner surface (32) of said shirt member (22) extending circumferentially about said central axis and having a cylindrical shaped opening extending from the top end (28) to said bottom end (30 ); said length of said shirt member (22) being from 100 mm to 150 mm; said first portion of said outer surface (34) being 10 to 50% of said length of said shirt member (22); said outer surface (34) being machined at a radial distance from said central axis to have said first outer diameter (Di) being smaller than said second outer diameter (D2); said outer surface (34) has a plurality of depressions (364), each having a depth of no more than 1 mm along said first portion; said shirt member (22) having a thickness extending from said inner surface (32) to said outer surface (34), said thickness being at least 1.8 mm along said first portion, and said thickness along said first portion being 10 to 15 mm less than said thickness along said second portion; said connecting layer (24) entirely covering said outer surface (34) along said first portion; said aluminum-based material of said connection layer (24) is an aluminum alloy; said aluminum alloy includes aluminum in an amount of 85 to 90% by weight (% by weight), silicon in an amount of 10 to 15% by weight, oxygen in an amount of 0.05 to 0.15% by weight, and optionally, Fe, Mg, Zn, and Mn in a total amount of less than 1% by weight, based on the total weight of said aluminum alloy; said bonding layer (24) has a porosity of less than 5%, a thermal conductivity of 80 to 120 W / mK from 50 to 400 ° C, a coefficient of thermal expansion of 20 to 24 x 10'6 / K of 20 to 150 ° C, a tensile strength of at least 170 MPa, and an elastic modulus of 40 to 70 GPa; said connection layer (24) having a thickness not greater than 15 mm; and said connecting layer (24) is applied to said external surface (34) by means of thermal spray.
    [0007]
    A cylinder liner (20) according to claim 1, characterized in that it comprises: a liner member (22) having a length extending longitudinally from a top end (28) to a bottom end (30 ); a bonding layer (24) adhered to said outer surface (34) along said first portion, and said bonding layer (24) including aluminum.
    [0008]
    8. Method of manufacturing a cylinder liner (20), as defined in any of claims 1 to 7, characterized in that it comprises the steps of: providing a liner member (22) extending longitudinally from one end top (28) to a bottom end (30) and having a length between the top (28) and bottom (30) ends, the shirt member (22) including an inner surface (32) extending around a central axis and an external surface (34) facing opposite, the external surface (34) presenting a first external diameter (Di) along the first portion of the length and a second external diameter (D2) along the second portion in length, and the first outside diameter (Di) being smaller than the second outside diameter (D2); adhering a bonding layer (24) that includes aluminum to the outer surface (34) of the shirt member (22) along the first portion of the length; applying a layer of aluminum-based material to the outer surface (34) along the first portion of the length, wherein the step of applying the layer of aluminum-based material to the outer surface (34) includes thermally spraying the material the aluminum base on the outer surface (34).
    [0009]
    9. Method according to claim 8, characterized in that it includes reducing the first outer diameter (Di) along the first portion, so that the first outer diameter (Di) is smaller than the second outer diameter (D2) .
    [0010]
    Method according to claim 8, characterized in that it includes casting fragments on the outer surface (34) along the first portion to form a plurality of depressions (36), each having a depth of no more than 1 mm .
    [0011]
    Method according to claim 8, characterized in that the shirt member (22) is formed from a metallic material different from the aluminum-based material.
    [0012]
    Method according to claim 8, characterized in that it comprises the steps of: providing a shirt member (22) having a length that extends longitudinally from a top end (28) to a bottom, the shirt member (22) including an inner surface (32) that extends around a central axis and an outer surface (34) opposite, the outer surface (34) having a first outer diameter (Di) along a first portion of the length and a second outer diameter (D2) along a second portion of the length, and the first outer diameter (Di) being smaller than the second outer diameter (D2); and adhering a bonding layer (24) that includes aluminum to the outer surface (34) of the shirt member (22) along the first portion of the length.
    [0013]
    13. Engine block assembly (38), characterized by the fact that it comprises: a plurality of cylinder liners (20), each cylinder liner (20) including a liner member (22) extending longitudinally from one end of top (28) to a bottom end (30) and having a length between said top (28) and bottom (30) ends, said jacket member (22) including an inner surface (32) extending around a central axis and an external surface (34) facing opposite, said external surface (34) having a first external diameter (Di) along a first portion of said length and a second external diameter (D2) along a second portion of said length, and said first outer diameter (Di) being less than said second outer diameter (D2); each of said cylinder liners (20) including a layer of a first aluminum-based material applied to said outer surface (34) along said first portion; a block (26) formed from a second aluminum-based material and having a plurality of holes (40), each of them to receive one of said cylinder liners (20); and said first aluminum-based material of said cylinder liners (20) being connected to said second aluminum-based material of said block (26); wherein said block (26) has a cooling chamber (44) spaced from each of said holes (40) by said second aluminum-based material, said block (26) includes an upper surface (48) which presents a plurality of connection areas (42), each connection area (42) being planar and located between adjacent holes (40), said block (26) includes a plurality of cooling passages (46), each extending up from said cooling chamber (44) and through a portion of said block (26) between said holes (40) to direct the cooling fluid from said cooling chamber (44).
    [0014]
    Engine block assembly (38) according to claim 13, characterized in that the first aluminum-based material of said cylinder liners (20) is the same as said second aluminum-based material of said block (26).
    [0015]
    Engine block assembly (38) according to claim 13, characterized in that said jacket member (22) is formed of a metallic material different from said aluminum-based materials of said layer and said block ( 26).
    [0016]
    16. Method of manufacturing an engine block assembly (38), as defined in any one of claims 13 to 15, characterized in that it comprises the steps of: providing a plurality of cylinder liners (20), each liner cylinder (20) including a sleeve member (22) extending longitudinally from a top end (28) to a bottom end (30) and a length between the top (28) and bottom ends (30) ), the jacket member (22) including an inner surface (32) that extends around a central axis and an outer surface (34) facing opposite, the outer surface (34) having a first diameter (Di) external to the along a first portion of the length and a second outer diameter (D2) along a second portion of the length, and the first outer diameter (Di) being smaller than the second outer diameter (D2), each of the cylinder liners (20) including a layer of a first material l the aluminum base applied to the external surface (34) along the first portion; arranging the plurality of cylinder liners (20) in a mold (50); and melting a second aluminum-based material around the plurality of cylinder liners (20) within the mold (50).
    [0017]
    17. Method according to claim 16, characterized in that the second aluminum-based material is bonded to the first aluminum-based material during the casting step.
    [0018]
    18. Method according to claim 16, characterized in that the shirt member (22) is formed from a metallic material different from the aluminum-based materials of the layer and the block (26).
    [0019]
    19. Method according to claim 16, characterized in that it includes applying the first aluminum-based material to the external surface (34) by thermal spray.
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    法律状态:
    2018-11-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-09| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2019-10-01| B25D| Requested change of name of applicant approved|Owner name: FEDERAL-MOGUL LLC (US) |
    2019-10-15| B25A| Requested transfer of rights approved|Owner name: TENNECO INC. (US) |
    2020-04-22| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-20| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/07/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201361846973P| true| 2013-07-16|2013-07-16|
    US61/846,973|2013-07-16|
    PCT/US2014/046782|WO2015009777A1|2013-07-16|2014-07-16|Cylinder liner with bonding layer|
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