Ultra light engine valve and method of welding cap thereto
    1.
    发明授权
    Ultra light engine valve and method of welding cap thereto 失效
    超轻型发动机气门及其盖帽焊接方法

    公开(公告)号:US06263849B1

    公开(公告)日:2001-07-24

    申请号:US09356989

    申请日:1999-07-20

    IPC分类号: F01L114

    CPC分类号: F01L3/20 F01L3/02

    摘要: A hollow poppet valve (31) is disclosed, in which a stem portion (13) includes a flared fillet portion (17), having a wall thickness (T), and a downwardly-extending cylindrical portion (33;51), having a cylindrical external surface (35). In the main embodiment, the valve includes a cap member (15) defining a seat face (25), and a cylindrical internal surface (39), the internal and external surfaces (39,35) being closely spaced apart, defining an interface having an axial length (L), and being consumed by a weld (43). Preferably, the length (L) of the weld (43) is equal to at least 1.1 times the thickness (T). The fillet portion (17) defines an internal fillet radius (R1), greater than 0.3 times the thickness (T), and near the radius (R1) is a transition region (TR). The present invention improves fatigue strength of the poppet valve by separating the transition region (TR) from the weld (43) so that there is overlap for no more than a minor portion of the weld.

    摘要翻译: 公开了一种中空的提升阀(31),其中杆部分(13)包括具有壁厚(T)的扩口的圆角部分(17)和具有向下延伸的圆柱形部分(33; 51) 圆柱形外表面(35)。 在主要实施例中,阀包括限定座面(25)的盖构件(15)和圆柱形内表面(39),内表面和外表面(39,35)紧密间隔开,限定了具有 轴向长度(L),并被焊缝(43)消耗。 优选地,焊缝(43)的长度(L)等于厚度(T)的至少1.1倍。 圆角部分(17)限定大于0.3倍厚度(T)的内圆角半径(R1),并且半径(R1)附近是过渡区域(TR)。 本发明通过将过渡区域(TR)与焊缝(43)分离,从而提高了提升阀的疲劳强度,使焊缝的重要部分不超过少部分。

    AIRFLOW MANAGEMENT SYSTEM IN A HVAC UNIT INCLUDING TWO FANS OF DIFFERENT DIAMETERS
    2.
    发明申请
    AIRFLOW MANAGEMENT SYSTEM IN A HVAC UNIT INCLUDING TWO FANS OF DIFFERENT DIAMETERS 审中-公开
    HVAC单元中的气流管理系统,包括两个不同直径的风机

    公开(公告)号:US20090133856A1

    公开(公告)日:2009-05-28

    申请号:US12090405

    申请日:2005-11-16

    IPC分类号: F28D15/00

    CPC分类号: F24F1/0007

    摘要: Air is heated by a gas or electric heat exchanger or cooled in an evaporator coil. The air is discharged through a discharge opening to heat or cool an area. Two fans draw an exterior air stream over the gas or electric heat exchanger or the evaporator coil. A first fan has a diameter greater than a diameter of a second fan. When in a side discharge configuration, the second fan is located between the first fan and the side discharge opening. The first fan has a larger diameter to produce a stronger airflow to overcome the airflow produced by the second fan, better distributing the airflow from the first fan. The airflow generated by the second fan is directed to the discharge opening relatively unimpeded.

    摘要翻译: 空气由气体或电热交换器加热或在蒸发器盘管中冷却。 空气通过排放口排出,以加热或冷却一个区域。 两个风扇在气体或电热交换器或蒸发器盘管上抽出外部气流。 第一风扇的直径大于第二风扇的直径。 当处于侧排出构造时,第二风扇位于第一风扇和侧排出口之间。 第一风扇具有较大的直径以产生更强的气流以克服由第二风扇产生的气流,从而更好地分配来自第一风扇的气流。 由第二风扇产生的气流相对不受阻碍地被引导到排出口。

    Sound baffle installation and retention device
    5.
    发明授权
    Sound baffle installation and retention device 失效
    隔音板安装和保持装置

    公开(公告)号:US5879031A

    公开(公告)日:1999-03-09

    申请号:US839115

    申请日:1997-04-23

    IPC分类号: F23M99/00 F16L37/088 F01N1/10

    CPC分类号: F23M20/005 Y10T24/149

    摘要: A sound baffle retention clip for use in a combustion driven heating apparatus. The clip allows for positive retention of a sound baffle within the heat tube of a combustion driven heating apparatus without adversely affecting system operating performance. Further the clip allows for easy and efficient installation of the sound baffle without compromising the integrity of the heat tube.

    摘要翻译: 一种用于燃烧驱动加热装置的隔音挡板。 夹子允许在燃烧驱动的加热装置的热管内正确地保持隔音挡板,而不会不利地影响系统的操作性能。 此外,夹子允许容易且有效地安装隔音挡板,而不会影响热管的完整性。