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    MANUFACTURING PISTONS
    53.
    发明公开
    MANUFACTURING PISTONS 审中-公开
    生产活塞

    公开(公告)号：EP1392470A1

    公开(公告)日：2004-03-03

    申请号：EP02774051.3

    申请日：2002-05-21

    Applicant: Federal-Mogul Technology Limited

    Inventor： BARNES, Samantha, Isobelle

    IPC: B23P15/10 ,  F02F3/00 ,  B23K20/12

    CPC classification number: B23K20/129 ,  B23K2201/003 ,  B23P15/10 ,  F02B23/0603 ,  F02B23/0696 ,  F02F3/00 ,  F02F3/285 ,  Y02T10/125 ,  Y10T29/49256

    Abstract: A piston is manufactured with functional recesses (6, 7, 8) thereof formed from property improving material (18b, 18c, 18d). A blank (10) defines a mounting recess (12, 14, 16) and a quantity of said property-improving material (18b, 18c, 18d) is secured within said mounting recess. Said functional recess (6, 7, 8) is machined out of said quantity of property-improving material. The process for securing said property-improving material (18b, 18c, 18d) comprises forming a rod (20, 22, 34) from a material which on plasticisation under heat and pressure forms said property-improving material, inserting an end of the rod into said mounting recess, and rotating said rod in contact with a surface of the mounting recess (12, 14, 16), while applying force to the rod to feed it into the mounting recess. The rotational speed of said rod and the force applied thereto being controlled so that frictional heat is generated between the rod and the blank, causing plasticisation of the material of the rod, thereby, upon solidification converting it into said property-improving material (18b, 18c, 18d).

    AN ASSEMBLY METHOD OF A PISTON-CYLINDER GROUP AND A PISTON-CYLINDER GROUP THUS OBTAINED
    55.
    发明公开
    AN ASSEMBLY METHOD OF A PISTON-CYLINDER GROUP AND A PISTON-CYLINDER GROUP THUS OBTAINED 审中-公开
    活塞 - 缸组和活塞 - 缸组的组装方法

    公开(公告)号：EP3252319A1

    公开(公告)日：2017-12-06

    申请号：EP17172917.1

    申请日：2017-05-25

    Applicant: OGNIBENE POWER S.P.A.

    Inventor： OGNIBENE, Claudio

    IPC: F15B15/14 ,  B23K9/04 ,  F16J10/02 ,  B23K101/00 ,  B23K9/028

    CPC classification number: F15B15/1438 ,  B23K9/028 ,  B23K2201/003 ,  F15B15/1428 ,  F15B15/1442 ,  F15B2215/30 ,  F16J10/02

    Abstract: An assembly method of a piston-cylinder group (10), where the piston-cylinder group (10) comprises a cylinder (20) at an end of which a head (40) is fixable, provided with seal gaskets (43), where the method comprises steps of:
    - mounting the seal gaskets (43) in appropriate seatings in the head (40);
    - coupling the head (40) with the cylinder (20); and
    - a low-temperature welding of the coupling between the head (40) and the cylinder (20).

    Abstract translation: 一种活塞 - 缸体组（10）的组装方法，其中活塞 - 缸体组（10）包括缸体（20），活塞缸体的一端可固定有头部（40），所述缸体设置有密封垫圈（43） 该方法包括以下步骤：将密封垫圈（43）安装在头部（40）中适当的座位中; - 将所述头部（40）与所述缸体（20）联接; 和 - 头部（40）和缸体（20）之间的联接的低温焊接。

    HYBRID INDUCTION WELDING PROCESS APPLIED TO PISTON MANUFACTURING
    56.
    发明公开
    HYBRID INDUCTION WELDING PROCESS APPLIED TO PISTON MANUFACTURING 审中-公开
    混合感应焊接工艺在活塞制造中的应用

    公开(公告)号：EP3186027A2

    公开(公告)日：2017-07-05

    申请号：EP15749947.6

    申请日：2015-08-05

    Applicant: Federal-Mogul Corporation

    Inventor： ROELOFS, Zachary Odel ,  MARTINES, Airton ,  EVERS, Ross ,  GARZA, Oscar

    IPC: B23K13/01 ,  B23K20/12 ,  B23K20/24 ,  B23K28/02 ,  B23P15/10 ,  F02F3/00

    CPC classification number: F02F3/003 ,  B21J5/08 ,  B21K3/00 ,  B23K13/015 ,  B23K20/129 ,  B23K20/24 ,  B23K28/02 ,  B23K31/12 ,  B23K2201/003 ,  B23P15/10 ,  F02F2003/0061

    Abstract: A hybrid induction welded piston including an upper piston part welded to a lower piston part is provided. The piston is produced by induction heating the upper piston part and the lower piston part, and bringing the parts together to a part growth compensated position. The method then includes rotating the upper piston part 17 to 34 degrees clockwise and then 17 to 34 degrees counterclockwise. In addition to controlling the axial position and degree of rotation, the force applied to the piston parts is controlled so that preferably no flash is formed in a narrow cooling chamber of the piston. During the rotating steps, the pressure gradually increases to a maximum level which occurs while the upper piston part is rotating in the second direction. The piston includes a homogenous metallurgical bond across the weld and no indentation on the outer surface at the weld prior to machining.

    Abstract translation: 提供了包括焊接到下活塞部分的上活塞部分的混合感应焊接活塞。 活塞通过感应加热上部活塞部分和下部活塞部分并且将这些部分一起带到部分增长补偿位置而产生。 该方法然后包括将上活塞部分17顺时针旋转到34度，然后逆时针旋转17到34度。 除了控制轴向位置和旋转角度之外，还控制施加到活塞部件上的力，使得优选地不在活塞的狭窄冷却室中形成闪光。 在旋转步骤期间，压力逐渐增加到在上部活塞部件沿第二方向旋转时发生的最大水平。 在加工之前，活塞在焊接处包括均匀的冶金结合，并且在焊接处的外表面上没有压痕。

    JOINED BODY
    57.
    发明公开
    JOINED BODY 审中-公开
    VERBUNDENERKÖRPER

    公开(公告)号：EP2949417A4

    公开(公告)日：2017-01-25

    申请号：EP14775845

    申请日：2014-03-27

    Applicant: KYB CORP

    Inventor： HARA TAKAHIKO ,  KAWAKAMI TAKAYASU ,  OYAMA HIROSHI ,  TAKAHASHI YUSUKE ,  HIRAKI KENICHI

    IPC: B23K20/12 ,  F15B15/14 ,  F16J7/00

    CPC classification number: B23K20/129 ,  B23K20/12 ,  B23K33/006 ,  B23K2201/003 ,  B23K2201/04 ,  F15B15/1457

    Abstract: A joined body formed by joining end surfaces of two joining members to each other by a friction welding, the joined body includes a hollow portion formed on at least one of the two joining members, the hollow portion being configured to have an opening at the joining face between the two joining members; and an annular groove portion formed on an inner circumferential surface of the hollow portion at a position separated from a joining face in an axial direction.

    Abstract translation: 通过摩擦焊接将两个接合构件的端面相互连接形成的接合体，所述接合体包括形成在所述两个接合构件中的至少一个上的中空部，所述中空部构造成在所述接合处具有开口 面对两个加盟成员; 以及环形槽部，其在与所述接合面在轴向上分离的位置处形成在所述中空部的内周面上。

    VERFAHREN ZUR HERSTELLUNG EINES KOLBENS FÜR EINEN VERBRENNUNGSMOTOR UND MITTELS DIESES VERFAHRENS HERGESTELLTER KOLBEN
    59.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINES KOLBENS FÜR EINEN VERBRENNUNGSMOTOR UND MITTELS DIESES VERFAHRENS HERGESTELLTER KOLBEN 有权
    VERFAHREN ZUR HERSTELLUNG EINES KOLBENSFÜREINEN VERBRENNUNGSMOTOR UND MITTELS DIESES VERFAHRENS HERGESTELLTER KOLBEN

    公开(公告)号：EP2976180A1

    公开(公告)日：2016-01-27

    申请号：EP14721188.2

    申请日：2014-03-18

    Applicant: Mahle International GmbH

    Inventor： BERR, Gerhard ,  BOCZEK, Sascha-Oliver ,  MÜLLER, Reiner ,  SCHARP, Rainer

    IPC: B23P15/10 ,  B21K1/18 ,  F02F3/00

    CPC classification number: F02F3/28 ,  B21K1/18 ,  B21K1/185 ,  B23B2215/245 ,  B23K15/0053 ,  B23K15/0093 ,  B23K26/282 ,  B23K26/32 ,  B23K2201/003 ,  B23K2203/04 ,  B23K2203/50 ,  B23P15/10 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061 ,  F02F2200/04

    Abstract: The invention relates to a method for producing a piston (10) for an internal combustion engine, comprising a piston main body (11) and a piston ring part (17), wherein the piston main body (11) has a combustion recess (12) having a dome (13), and comprising piston bosses (14) provided with boss bores (15), said piston bosses being connected to one another via running surfaces (16), wherein the piston ring part (17) comprises a piston floor (18), a circumferential fire land (19) and a circumferential ring part (21), and wherein the piston main body (11) and the piston ring part (17) form a circumferential cooling duct (22). According to the invention the method comprises the following steps: a) producing a blank (11') of the piston main body (11) by means of a forming method, b) producing a blank (17') of the piston ring part (17) by means of a forming method or a casting method, c) rough-machining the blanks (11', 17') and finish-machining welding faces (26, 26; 27, 29); d) connecting the rough-machined blanks (11", 111", 17") of piston main body (11) and piston ring part (17) by a welding method to form a piston body (30, 130), e) secondary machining and/or finish-machining the piston body (30, 130) to form a finished piston (10). According to the invention, in step a) during the production of the blank (11') of the piston main body (11), the contour of the combustion recess (12) away from a domed region (13a, 113a) is completed, surplus material (23, 123) is formed in the domed region (13a, 113a) of the combustion recess (12) and in step e) the surplus material (23, 123) in the domed region (13a, 113a) of the combustion recess (12) is removed in an amount such that a predetermined volume of the combustion recess (12) results.

    Abstract translation: 本发明涉及一种用于制造用于内燃机的活塞（10）的方法，该方法包括活塞主体（11）和活塞环部分（17），其中活塞主体（11）具有燃烧凹部 ）具有圆顶（13），并且包括设有凸台孔（15）的活塞凸台（14），所述活塞凸台通过工作表面（16）彼此连接，其中活塞环部分（17）包括活塞底板 （18），周向火区（19）和周向环部分（21），并且其中所述活塞主体（11）和所述活塞环部分（17）形成周向冷却管道（22）。 根据本发明，该方法包括以下步骤：a）通过成形方法制造活塞主体（11）的坯件（11'），b）制造活塞环部件（17'）的坯件 17.根据权利要求16所述的方法，其特征在于，所述方法还包括：c）对所述坯件（11'，17'）进行粗加工并且精加工焊接面（26,26; 27,29）。 d）通过焊接方法连接活塞主体（11）和活塞环部分（17）的粗加工坯件（11“，111”，17“）以形成活塞体（30,130），e）次级 其特征在于，在步骤a）中，在制造所述活塞主体（11）的所述坯件（11'）期间，在所述活塞主体 ）时，燃烧凹部（12）远离圆顶区域（13a，113a）的轮廓完成，剩余材料（23,123）形成在燃烧凹部（12）的圆顶区域（13a，113a）中，并且 在步骤e）中，燃烧凹部（12）的圆顶形区域（13a，113a）中的剩余材料（23,123）被移除一定量，使得产生预定体积的燃烧凹部（12）。

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