| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Process of fabricating castings provided with inserts, with improved component/insert mechanical cohesion, and an insert usable in the process | US09953750 | 2001-09-14 | US20020046822A1 | 2002-04-25 | Philippe Meyer; Dominique Bardinet; Franck Plumail; Gerard Lesueur |
| A process of fabricating a light alloy casting, such as an aluminum alloy casting, including at least one metal insert includes applying a coating of lampblack to a face of the insert intended to be in contact with the alloy of the component and casting the component with the molten alloy in a mold cavity in which the insert is positioned. Applications include fabricating engine blocks with integrally cast liners made of cast iron. | ||||||
| 182 | Cylinder liner for combustion engines and manufacturing method | US09829610 | 2001-04-10 | US06354259B2 | 2002-03-12 | Manfŕed Fischer; Rudólf Mundl; Peter Gödel; Wolfgang Reichle; Werner Trübenbach; Markus Müller; Reinhard Rosert |
| A method for the manufacture of a cylinder liner for combustion engines and a cylinder liner which can be manufactured by the method according to the invention are disclosed. The method comprises a thermal spray-deposition, such as by an arc spray-deposition process, of a wearing layer on a supporting body and a spray-deposition of a protective or connecting layer on the wearing layer. The wearing layer comprises a hypereutectic aluminum-silicon alloy and the protective or connecting layer comprises a hypoeutectic aluminum-silicon alloy. A melt retarder of iron, for example, may be interposed between these two layers. The melt retarder comprises a higher melting temperature than the two aluminum-silicon alloys, thereby preventing the wearing layer from partially melting when the cylinder liner is cast into a cylinder bore. | ||||||
| 183 | Motor block as well as casting mold and casting method for the manufacture thereof | US09358143 | 1999-07-20 | US06205959B1 | 2001-03-27 | Herbert Smetan; Klaus Lellig |
| In an engine block having cylinder cavities arranged close together, a cooling duct is produced in an intermediate wall between the cylinders by pouring the casting material around a mold core made preferably from a material that is soluble in a liquid, combustible and/or brittle, so that the mold core can easily be removed from the duct once the casting has solidified. In the casting mold, the duct mold core is secured solely at its ends so that a cooling duct is formed that is bordered exclusively by a skin of casting material. | ||||||
| 184 | Crankcase for an internal-combustion engine | US09265959 | 1999-03-11 | US06192852B1 | 2001-02-27 | Ingo Gerhards; Juergen Lang; Klaus Schnarrenberger |
| A crankcase for an internal-combustion engine is constructed with a crankcase top and bottom sections made of a light-metal material. Bearing points for a crankshaft and at least one cylinder space are provided. In the region of the bearing points for the crankshaft, respective parts are cast into the crankcase bottom and top sections. The cast-in parts are constructed of a material with a higher modulus of elasticity and a lower coefficient of thermal expansion than the light metal material for the crankcase bottom and top sections. The cast-in parts are constructed for each bearing point as separate, spatially mutually separated members. | ||||||
| 185 | Cylinder liner of a hypereutectic aluminum/silicon alloy for use in a crankcase of a reciprocating piston engine and process for producing such a cylinder liner | US967944 | 1997-11-12 | US6096143A | 2000-08-01 | Franz Ruckert; Peter Stocker; Roland Biedermann; Roland Rieger |
| A cylinder liner cast into a reciprocating piston engine made of a supereutectic aluminum/silicon alloy which is free of mixed-in particles of hard material and which is composed in such a way that fine silicon primary crystals and intermetallic particles automatically form from the melt as hard particles. A blank is allowed to grow from finely sprayed melt droplets by spray compaction, with a fine distribution of hard particles being produced by setting the spray for small melt droplets. The blank can then be formed by cold extrusion to create a shape approximating the cylinder lining. After premachining, the surface is fine machined, honed in at least one stage and then the hard particles lying at the surface are mechanically or chemically exposed, forming plateau areas of hard particles which project above the remaining surface of the base microstructure of the alloy. The mechanical exposure of the primary crystals or particles is carried out by a honing process using felt strips which are cylindrically shaped on the outside and a slurry of SiC particles in honing oil. The chemical exposure of the primary crystals or particles is carried out by using aqueous alkali. The fine-grained, hard particles formed from the melt and also the mechanical exposure of the hard particles on the surface of the cylinder results not only in high wear resistance and high contact area of the surface, but also in gentle treatment of the piston and its rings. | ||||||
| 186 | Method of casting an engine block of aluminum | US859884 | 1997-05-21 | US5931213A | 1999-08-03 | Azita Khalili; Herbert Smetan |
| A method of casting an engine block of aluminum whose working surfaces, after milling the interiors of the cylinders, are coated with a harder metal, particularly nickel, includes inserting permanent molds in the sand mold and manufacturing the cylinder interiors of a metal which has a thermal expansion coefficient of greater than 18.times.10.sup.-6 K.sup.-1. | ||||||
| 187 | Cylinder liner of a hypereutectic aluminum/silicon alloy for casting into a crankcase of a reciprocating piston engine and process for producing such a cylinder liner | US790939 | 1997-01-29 | US5891273A | 1999-04-06 | Franz Ruckert; Peter Stocker; Roland Rieger |
| The invention relates to a cylinder liner, cast into a reciprocating piston engine, of a highly hypereutectic aluminum/silicon alloy which is free of hard material particles independent of the melt and has such a composition that fine primary silicon crystals and intermetallic phases automatically form from the melt as hard particles. By spray-compacting, a blank of finely sprayed melt droplets is caused to grow, a fine distribution of the hard particles being produced by controlled introduction of small melt droplets. The blank can be transformed by an extrusion step into a form approximating the cylinder liner. After subsequent premachining with chip removal, the running surface is precision-machined and subsequently honed in at least one stage, after which the hard particles located in the running surface are exposed, plateau faces of the particles being formed, which faces protrude from the remaining surface of the matrix structure of the alloy. The exposing of the primary crystals and/or particles is effected chemically, using aqueous alkali. Owing to the fine-grained hard particles formed in the melt and to their large proportion in the matrix structure and owing to the exposing of the hard particles in the matrix structure, not only high wear resistance and a high load bearing proportion of the running surface result, but also the possibility of using inexpensive piston ring fittings and piston coatings with, at the same time, low oil consumption and correspondingly low hydrocarbon emissions. | ||||||
| 188 | Core assembly manufacturing apparatus of casting engine blocks and method for making the assembly | US286617 | 1994-08-05 | US5771955A | 1998-06-30 | Gary Dale Helgesen; Robert Gordon Rentschler; Thomas John Heater |
| A plurality of inter-connected cores includes barrel cores (18). Bore liners (10) surround the barrel cores (18) and are fixed in relation thereto. A cylinder block mold core package (22) is assembled from the cores (14, 24, 26, 28). The liners (10) are heated while they are within the cylinder block mold core package (22) by induction heating. To prevent migration, a mechanical interlock is provided between each liner (10) and its associated barrel core (18). | ||||||
| 189 | Cylinder liner and cylinder block and method for producing the cylinder liner and the cylinder block | US636221 | 1996-04-23 | US5727511A | 1998-03-17 | Hiroyuki Omura; Shin Nitta; Yosuke Takahashi; Hirotake Usui; Jun Isomoto; Haruhisa Mori; Takashi Yamaguchi; Hiroshi Miyazaki |
| A cylinder liner or a cylinder block's bore portion formed of a composite alloy material reinforced with fibers and dispersed with ceramic particles. In the cylinder liner or the bore portion of the cylinder block, ceramic particles and alumina short fibers are uniformly dispersed in a light metal matrix. For producing the cylinder liner and the cylinder block, a preform having a shape identical with the cylinder liner or the bore portion is produced by mixing together the ceramic particles and the alumina short fibers. Molten light metal is infiltrated into voids of the preform during casting. | ||||||
| 190 | Casting method and apparatus for use therein | US339356 | 1994-11-14 | US5607006A | 1997-03-04 | Byron W. Koch |
| A method for casting metals around an article having a bore extending along a central axis and defined at least in part by an interior cylindrical wall portion utilizes a mandrel having a cylindrical exterior surface portion sized to be slidingly positioned in said bore in close relationship with said interior cylindrical wall portion. The mandrel has an annular groove in which is positioned a canted coil spring with a series of outer contact points extending radially outwardly beyond said cylindrical exterior surface portion. The article is moved onto the mandrel to compress the spring and deflect the outer contact points such that the spring imparts an outwardly directed force to the article interior cylindrical wall portion to provide frictional resistance between the spring, outer contact points and the interior cylindrical wall portion to retain the article on the mandrel while casting molten metal around the mandrel supported article to form a cast part. | ||||||
| 191 | Method of making a cylinder barrel having ceramic bore liners | US323645 | 1994-10-17 | US5581881A | 1996-12-10 | Donald H. Sherman; Michael C. Long |
| A cylinder barrel includes a casting having a plurality of ceramic bore liners cast in situ within the casting. The cylinder barrel is made by positioning the ceramic bore liners at predetermined locations within a casting mold and pouring a molten ferrous metal into the mold so as to envelope the bore liners. | ||||||
| 192 | Reinforced cylinder head | US355674 | 1994-12-14 | US5463989A | 1995-11-07 | Lars Saaf; Sven E. Stenfors |
| A cast cylinder head of light metal incorporates a reinforcement made of a stronger material than the light metal. The reinforcement consists of a relatively narrow elongated steel plate (6) which stretches in a single piece along all the cylinders. The elongated steel plate (6) is provided with transverse arms (8) which stretch out approximately perpendicularly from the steel plate between the valve port apertures (3a, 4a, 5a, 6a) of each cylinder. | ||||||
| 193 | Casting core and method for cast-in-place attachment of a cylinder liner to a cylinder block | US920603 | 1992-07-27 | US5361823A | 1994-11-08 | John W. Kuhn; Thomas E. Prucha |
| A decomposable casting core (56a, 56b) is formed in-situ with a sleeve-like liner member (64) and the assembly mounted within the mold cavity (24) of a cylinder block casting mold (22) for lining piston cylinder chambers (62a, 62b) of a cylinder block (26) cast within the mold (22). The liner member (64) is formed with an inner annular recess (80) which receives a corresponding annular projection (76) of the core (56a, 56b) for preventing the liner (64) from sliding axially on the core (56a, 56b) during casting. | ||||||
| 194 | Cylinder block and a process for casting the same | US456 | 1993-01-04 | US5357921A | 1994-10-25 | Hisashi Katoh; Tadayoshi Nakajima; Tomoyuki Goto; Tsunehisa Hata; Hideyo Miyano; Shinsuke Koda |
| A cylinder block has a cylinder block body and a cylinder liner block mounted by casting in the cylinder block body. The cylinder liner block is formed from a material having a rigidity larger than that of the cylinder block body, and the cylinder liner block comprises a liner section mounted by casting in position in a cylinder barrel portion of the cylinder block body, and a reinforcing wall section mounting by casting in position in a bearing wall of a crank case portion of the cylinder block body in a. Thus, it is possible to increase the wear resistance of cylinders in the cylinder block, as well as to provide an increase in performance by reductions in vibration and noise of the engine including the cylinder block, and to provide reductions in size, weight and cost of the cylinder block by a reduction in thickness of the bearing walls. | ||||||
| 195 | Internal combustion engine cylinder heads and similar articles of manufacture and methods of manufacturing same | US13817 | 1993-02-02 | US5354608A | 1994-10-11 | Thomas M. Keelan; Stanley J. Hinkle |
| A casting for conducting high temperature gases, such as an internal combustion engine cylinder head having to pass combustion exhaust gases therethrough, and a method of manufacturing the same wherein the casting includes a main body portion and a high strength steel exhaust port liner with a heat insulating chamber therebetween filled with hollow ceramic particles. The liner is cast in place thereby affixing the liner to the casting by means of diffusion bonding during the casting of the cast article. The liner and a low heat conductivity insulation blanket of hollow ceramic particles surrounding the liner and an annular steel ring, which serves as a thermally expanding seal between the casting and liner which also allows axial displacement between the casting and liner, are all provided as a unitary mold core prior to the casting of the cast article. | ||||||
| 196 | Method for metallurgically bonding cast-in-place cylinder liners to a cylinder block | US835781 | 1992-02-14 | US5232041A | 1993-08-03 | John W. Kuhn |
| A method for metallurgically bonding cast-in-place cylinder liners 12 to a cylinder block 38 includes first coating the outer surface of the liners 12 with a low melting point molten metal material 14 and allowing it to solidify. The coated liners 12 are then positioned within a cylinder block casting mold 22 and molten cylinder block metal introduced into the mold 22. At a time prior to the cylinder block metal contacting and surrounding the coated liners 12, induction heating coils 28 are activated to premelt the coating material 14. The molten cylinder block metal then contacts and mixes with the molten coating metal 14 to form a metallurgical bond between the liners 12 and cylinder block 38 upon solidification. | ||||||
| 197 | Method of eliminating porosity defects within aluminum cylinder blocks having cast-in-place metallurgically bonded cylinder liners | US821229 | 1992-01-16 | US5179994A | 1993-01-19 | John W. Kuhn |
| A method for eliminating porosity defects in aluminum cylinder blocks (22) having cast-in-place metallurgically bonded cylinder liners (12) includes coating the liners (12) with a low melting point molten metal such as zinc and thereafter removing a virtually entire outer layer of pure Zn, which would otherwise melt during casting and invade the block metal, leaving behind shrinkage defects in the resultant cylinder block (22). | ||||||
| 198 | Single cylinder or multicylinder block | US666296 | 1991-03-08 | US5131356A | 1992-07-21 | Georg Sick; Peter Everwin; Hans H. Duve |
| In a cast linerless single cylinder or multicylinder block made of an aluminum alloy and intended for use in internal combustion engines, the aluminum matrix contains embedded silicon particles, which protrude from the sliding surface of the cylinder. In order to distinctly reduce the cost of the mechanical machining of the entire surface of the single cylinder or multicylinder block, only the sliding surface of the cylinder is constituted by a fibrous body which contains interspersed silicon particles and infiltrated aluminum alloy. | ||||||
| 199 | Process for manufacturing siamese-type cylinder block | US51622 | 1987-05-19 | US5121786A | 1992-06-16 | Akio Kawase; Shuji Kobayashi; Toshio Hamashima; Kiyoshi Shibata; Yoshikazu Kanzawa; Masuo Ebisawa; Shigeo Kaiho |
| A process for manufacturing a siamese-type clyinder block which is disclosed herein comprises a blank making step of providing a cylinder block blank in which a sleeve made of a cast iron is cast in each cylinder barrel of a siamese-type barrel made of an aluminum alloy and consisting of a plurality of cylinder barrels connected in series, and a mechanically working or machining step of forming the inner peripheral surface of each sleeve of the cylinder block blank into a true circle. The process is characterized in that the blank making step includes placing highly rigid sleeves each having a thickness set as large as 10% or more of the inner diameter thereof into a siamese-type cylinder barrel molding cavity in a mold and then pouring a molten metal of aluminum alloy under a pressure into the cavity to effect a casting. The sleeve is cast-in as it is at an ambient temperature or in a heated state. A cylinder block blank resulting from the casting-in of sleeves at an ambient temperature is subjected to a thermal treatment for reducing the casting strain in each cylinder barrel. | ||||||
| 200 | Cylinder block making method and device | US701578 | 1991-05-14 | US5069266A | 1991-12-03 | Shigeki Nakatani; Takahiro Idemoto |
| A method and device for making a cylinder block includes a plurality of cylinder liners with flange portions respectively arranged side by side and extending in one direction. Each of the cylinder liners being casted together with a light metal to form a cylinder bore of an engine. The method includes the steps of disposing the cylinder liners within a cavity in a side by side relationship with one another with each of the cylinder liners being held by a core for forming the cylinder bore, forming a material holding section above the flange portions of the two cylinder liners adjacent to each other so as to communicate the two cylinder liners with each other therethrough, introducing a molten material of the light metal into the cavity for making the cylinder block, and removing a solidified material of the light metal in the material holding section. A high quality cylinder block product can thus be obtained. | ||||||
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