A CORE FOR AN INVESTMENT CASTING PROCESS
    53.
    发明公开

    公开(公告)号:EP3533532A1

    公开(公告)日:2019-09-04

    申请号:EP19155458.3

    申请日:2019-02-05

    申请人: Rolls-Royce plc

    发明人: Mottram, Martin

    摘要: A core (400) for an investment casting process in which a component to be cast has an internal passageway, the internal passageway being provided by the core (400), the core (400) comprising: a first core passage (401) having a first point (405) and a second point (406) therein and including no straight path between the first point (405) and the second point (406); and a first core bridge (421a) which extends away from the first core passage (401) between the first and second points (405, 406), wherein the first core bridge (421a) comprises a first pillar (422) and a second pillar (412a) which connect to the first and second points (405, 406) respectively, and a bridge portion (423a) which extends between the first and second pillars (422, 412a); wherein the first pillar (422) comprises a core inlet portion (408) having a thickness at the first point (405) and the second pillar (412a) has a thickness at the second point (406), the thickness of the core inlet portion (408) at the first point (405) being less than the thickness of the second pillar (412a) at the second point (406).

    VEHICLE SUBFRAME
    57.
    发明授权

    公开(公告)号:EP2990305B1

    公开(公告)日:2018-06-13

    申请号:EP14788182.5

    申请日:2014-04-25

    摘要: This vehicle subframe (15) includes a main body section (32) that results from a top section (41) and a bottom section (42) being provided with a predetermined gap in the vertical direction by means of being formed in a hollow shape by means of a core unit (80). A central joining section (38) is provided to the front-half section (32g) at the center (32h) in the vehicle widthwise direction of the main body section (32). Furthermore, in the main body section (32), a rear partition wall (64) is joined to the top section (41) and the bottom section (42) at the rearwards direction of the vehicle with respect to the central joining section (38). The rear partition wall (64) extends in the front-back direction of the vehicle.

    METHOD AND ASSEMBLY FOR FORMING COMPONENTS HAVING INTERNAL PASSAGES USING A JACKETED CORE
    59.
    发明公开
    METHOD AND ASSEMBLY FOR FORMING COMPONENTS HAVING INTERNAL PASSAGES USING A JACKETED CORE 审中-公开
    使用夹心核心形成具有内部通道的组件的方法和组装

    公开(公告)号:EP3184196A1

    公开(公告)日:2017-06-28

    申请号:EP16204605.6

    申请日:2016-12-16

    IPC分类号: B22C9/10 B22C9/24 B22D29/00

    摘要: A method (700) of forming a component (80) having an internal passage (82) defined therein includes positioning (702) a jacketed core (310) with respect to a mold (300). The jacketed core includes a hollow structure (320) formed from a first material (322), an inner core (324) disposed within the hollow structure, and a core channel (360) that extends from at least a first end (311) of the inner core through at least a portion of inner core. The method also includes introducing (704) a component material (78) in a molten state into a cavity (304) of the mold, such that the component material in the molten state at least partially absorbs the first material from the jacketed core within the cavity. The method further includes cooling (706) the component material in the cavity to form the component. The inner core defines the internal passage within the component.

    摘要翻译: 形成具有限定在其中的内部通道(82)的部件(80)的方法(700)包括相对于模具(300)定位(702)夹套芯体(310)。 所述夹套芯包括由第一材料(322)形成的中空结构(320),设置在所述中空结构内的内芯(324)和从所述中空结构的至少第一端(311)延伸的芯通道(360) 内芯穿过内芯的至少一部分。 该方法还包括将处于熔融状态的组分材料(78)引入(704)到模具的腔体(304)中,使得处于熔融状态的组分材料至少部分地从第一材料中的夹套芯吸收 腔。 该方法还包括冷却(706)空腔中的部件材料以形成部件。 内芯限定了部件内的内部通道。

    CYLINDER HEAD, INTERNAL COMBUSTION ENGINE EQUIPPED WITH SAME, AND CORE FOR MOLDING INTAKE PORT
    60.
    发明公开
    CYLINDER HEAD, INTERNAL COMBUSTION ENGINE EQUIPPED WITH SAME, AND CORE FOR MOLDING INTAKE PORT 审中-公开
    ZYLINDERKOPF,BRENNKRAFTMASCHINE DAMIT UND KERN ZUM FORMEN EINES ANSAUGKANALS

    公开(公告)号:EP3150299A1

    公开(公告)日:2017-04-05

    申请号:EP15799236.3

    申请日:2015-02-25

    摘要: [Object]
    To provide a technique for further improving fuel economy.
    [Solution]
    An intake port 24 has a quadrangular port region that is substantially quadrangular in a cross section perpendicular to a longitudinal direction (flowing direction of intake air), and openings of injector attachment holes 26 to branch ports 24b and 24c are nearly entirely provided in upper flat wall portions 122b and 122c in quadrangular port regions of the branch ports 24b and 24c. Thus, the size of a dead volume 92 can be made smaller than when the injector attachment holes are provided in an intake port of circular cross section. Therefore, turbulence of intake air flowing in the intake port 24, particularly in the branch ports 24b and 24c can be suppressed, and mixability of fuel and intake air can be enhanced to improve combustion efficiency. As a result, fuel economy can be improved further.

    摘要翻译: 提供一种进一步提高燃油经济性的技术。 [解决方案]进气口24具有在垂直于纵向(进气流动方向)的横截面中基本上四边形的四边形端口区域,并且喷射器附接孔26至分支端口24b和24c的开口几乎完全设置 在分支端口24b和24c的四边形端口区域中的上平坦壁部分122b和122c中。 因此,与将喷射器安装孔设置在圆形横截面的进气口中时,可以使死体积92的尺寸更小。 因此,可以抑制在进气口24,特别是分支口24b和24c中流动的进气的湍流,并且可以提高燃料和进气的混合性,以提高燃烧效率。 因此,可以进一步提高燃油经济性。