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公开(公告)号：US5087058A
公开(公告)日：1992-02-11
申请号：US708574
申请日：1991-05-31
CPC分类号： F16J15/0825 , F16J2015/0837 , F16J2015/085
摘要： Disclosed is a metal gasket for a manifold produced by laminating a plurality of bead plates having bead portions which are bent at a predetermined radius of curvature R and by setting the ratio R/t of the radius of curvature R to the thickness t of the bead plates to the range of 7 to 15. Therefore, the radius of curvature of the bent portions of the bead plates to the thickness can be made relatively great and the bent portions of the bead plates become smooth. As a result, when the metal gasket is tightened between a cylinder head and an exhaust manifold, the contact portions of the bead plates are expanded and the stress and face-to-face pressure occurring at the contact portions can be reduced. Accordingly, the stress acting on the bead plates can be made lower than a reference value, the increase of the facet-face pressure can be restricted to within a predetermined range and the stress and face-to-face pressure of the bead portions forming a seal surface can be kept within suitable ranges. For these reasons, even if great thermal deformation occurs in the exhaust manifold relative to the cylinder head, seal performance of the metal gasket is not lowered.
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公开(公告)号：US5294134A
公开(公告)日：1994-03-15
申请号：US017419
申请日：1993-02-10
CPC分类号： F02F11/002 , F16J15/0825 , F16J2015/0837 , F16J2015/0843 , F16J2015/0856
摘要： In the metallic gasket according to the present invention, beads are formed on the circumferential portions of the first cylinder bore-aligned holes in the base member, and folded portions are formed on the auxiliary member by merely folding back the inner edge sections of the second cylinder bore-aligned holes therein so as not to embrace the bead-carrying base member, the auxiliary member being laminated on the side of the base member from which the beads project. In this metallic gasket, the folded portions of the auxiliary member restrict the deformation of the beads to minimize the occurrence of fatigue and cracks in the beads, whereby the sealing function of the gasket is improved with uniform and proper surface pressure distribution maintained. Soft members are provided between the main portion of the auxiliary member and the folded portions thereof so as to secure proper surface pressure distribution in the metallic gasket in accordance with the rigidity of the cylinder head.
摘要翻译： 在根据本发明的金属衬垫中，在基体的第一气缸孔对准孔的周向部分上形成有珠，并且折叠部分仅通过折叠第二部分的内边缘部分而形成在辅助构件上 气缸孔对准的孔，以便不包围胎圈承载底座构件，辅助构件层叠在基座构件的从其突出的一侧上。 在这种金属垫圈中，辅助构件的折叠部分限制了珠子的变形，以最小化珠子的疲劳和裂纹的发生，由此保持了均匀且适当的表面压力分布，提高了垫圈的密封功能。 柔性构件设置在辅助构件的主要部分和其折叠部分之间，以便根据气缸盖的刚性确保金属垫圈中的适当的表面压力分布。
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公开(公告)号：US5310196A
公开(公告)日：1994-05-10
申请号：US932188
申请日：1992-08-20
CPC分类号： F16J15/0818 , F16J2015/0843 , F16J2015/085 , F16J2015/0856
摘要： At the portions of the metallic gasket according to the present invention which are around perforations the inner diameter of which is smaller than that of holes for combustion chamber, the thickness of at least the folded portions and the portions of an elastic metallic plate on which these folded portions are laminated are reduced to a level in the range from a level not higher than that of the thickness of said metallic plate to a level not lower than that of a half of the thickness of said metallic plate. These thickness-reduced portions of the metallic plate are bent onto the bead-ridge-carrying side thereof to form folded portions, whereby the thickness of the folded portions is reduced to provide a difference in height between the folded portions and the bead-surrounding portions of the metallic plate. The metallic plate is heat treated after the folding step has been completed, to regulate the hardness of the metallic plate.
摘要翻译： 在根据本发明的金属衬垫的部分，其内径大于其燃烧室的孔的穿孔，至少折叠部分的厚度和弹性金属板的这些部分的厚度 折叠部分被还原成从不高于所述金属板的厚度的水平的水平到不低于所述金属板的厚度的一半的水平的水平。 金属板的这些厚度减小的部分被弯曲到其凸缘支承侧上以形成折叠部分，由此减小折叠部分的厚度，以提供折叠部分和胎圈周边部分之间的高度差 的金属板。 金属板在折叠步骤完成后进行热处理，以调节金属板的硬度。
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公开(公告)号：US5286039A
公开(公告)日：1994-02-15
申请号：US932184
申请日：1992-08-20
申请人： Shigeru Kawaguchi , Kenji Kubouchi , Naoki Ii , Kunitoshi Inoue
发明人： Shigeru Kawaguchi , Kenji Kubouchi , Naoki Ii , Kunitoshi Inoue
CPC分类号： F16J15/0825 , F16J2015/0837 , F16J2015/0843 , F16J2015/085 , F16J2015/0856
摘要： This metal gasket interposes a regulation plate having compression stop portions and beads between first and second elastic metal plates the convexities of beads of which face one another. The compression stop portions prevent complete compression of each bead and absorbs any irregularity between opposed fitting surfaces around holes for a combustion chamber. An intermediate plate having an offset portion is sandwiched between the regulation plate and the second elastic metal plate. The offset portion is shaped to a height smaller than the thickness of the compression stop portions and regulates the degree of compression of each bead.
摘要翻译： 该金属垫片将具有压缩止挡部分的调节板和第一和第二弹性金属板之间的珠粒插入其中的珠的凸面彼此相对。 压缩止挡部分防止每个胎圈的完全压缩并且吸收用于燃烧室的孔周围的相对的配件表面之间的任何不规则性。 具有偏移部分的中间板夹在调节板和第二弹性金属板之间。 偏移部分成形为小于压缩止挡部分的厚度的高度，并且调节每个胎圈的压缩程度。
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公开(公告)号：US5348315A
公开(公告)日：1994-09-20
申请号：US913657
申请日：1992-07-16
IPC分类号： F16J15/08
CPC分类号： F16J15/0825 , F16J2015/0837 , F16J2015/0843 , F16J2015/085
摘要： The metallic gasket consists of a first elastic metallic plate having beads and folded portions and a second elastic metallic plate having beads, laminated on each other. The folded portions are formed by bending the plate alone the circumferences of cylinder bore holes, and the beads are formed on the portions of the plate spaced from the circumferences of the cylinder bore holes at a predetermined distance in the radially outward direction thereof, whereby double annular seal portions are formed. The projecting portions of the beads on the second elastic metallic plate are fitted in or brought into contact with the recessed portions or projecting portions of the beads on the first elastic metallic plate. The spring constant of the gasket becomes equal to the sum of those of the two plates, and this enables the stress carried by the plates to be lessened, and the durability of the gasket to be improved. It is also possible to reduce the width of the parts of the beads which are between the cylinder bore holes and use such a gasket suitably for an engine in which the distance between cylinder bores is small.
摘要翻译： 金属垫圈由具有珠和折叠部分的第一弹性金属板和具有彼此层叠的具有珠的第二弹性金属板组成。 折叠部分通过单独弯曲气缸孔的圆周而形成，并且，珠形成在板的与气缸孔的周向间隔开的部分上，沿其径向向外的方向以预定的距离，由此双重 形成环形密封部。 第二弹性金属板上的珠的突出部分嵌入或与第一弹性金属板上的珠的凹部或突出部接触。 垫圈的弹簧常数等于两个板的弹簧常数，这样可以减小由板承受的应力，提高垫圈的耐久性。 也可以减小气缸孔之间的气缸部分的宽度，并适用于气缸孔之间的距离较小的发动机。
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公开(公告)号：US5294135A
公开(公告)日：1994-03-15
申请号：US937093
申请日：1992-08-31
CPC分类号： F16J15/0825 , F16J2015/0843 , F16J2015/0856 , Y10T29/49297
摘要： This invention provides a metal gasket and its production method which prevents damage to folded portions by fold-machining and damage to metal materials after fastening, and expands the range of selection of materials for elastic metal plates, by reducing the thickness of a predetermined region of a elastic metal plate at which folded portions are to be formed. The thickness of the folded portion of the elastic metal plate is reduced from the folding side in an inner region of folded base portions and in regions in which folded free ends are positioned. Bend-machining is made gently at the folded base portions subjected to fold-bend machining, and the folded base portions each have a gap there-inside. The folded free ends do not come into contact with the elastic metal plate due to recessed surfaces. Accordingly, cracks and wrinkles do not occur at the folded base portions, and the folded free ends do not leave friction traces on the elastic metal plate.
摘要翻译： 本发明提供一种金属垫片及其制造方法，其通过在紧固后对金属材料进行折叠加工和损坏来防止对折叠部的损伤，并且通过减小弹性金属板的预定区域的厚度来扩大弹性金属板材料的选择范围 弹性金属板，其上将形成折叠部分。 弹性金属板的折叠部分的厚度在折叠的基部的内部区域和折叠的自由端定位的区域中从折叠侧减小。 在进行折弯加工的折叠基部上轻轻地弯曲加工，并且折叠的基部各自在其内部具有间隙。 折叠的自由端由于凹陷的表面而不与弹性金属板接触。 因此，折叠的基部不会发生裂纹和褶皱，折叠的自由端不会在弹性金属板上留下摩擦痕迹。
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公开(公告)号：US4964293A
公开(公告)日：1990-10-23
申请号：US328270
申请日：1989-03-24
CPC分类号： F16J15/0818 , C21D7/02 , F16J2015/085 , F16J2015/0856 , Y10T29/49863
摘要： This invention discloses the method of manufacturing metallic gaskets which are properly prestressed by a load which is determined according to a stress calculation. In the process of applying prestresses to the gaskets, a die formed to a thickness smaller than the thickness of the metallic gasket material--which has a bead portion and is coated with resin such as a fluoroelastomer--is placed close to and surrounding the outer circumference of the metallic gasket material or inside the holes formed in the metallic gasket material. Then, the tension side of the bead portion of the metallic gasket material is prestressed by a stress greater than a specified stress that will occur when the metallic gasket is used.
摘要翻译： 本发明公开了一种通过根据应力计算确定的负载适当预应力的金属垫圈的制造方法。 在将预应力施加到垫圈的过程中，形成厚度小于具有胎圈部分并且涂覆有诸如含氟弹性体的树脂的金属衬垫材料的厚度的模具放置在靠近并围绕外周的位置 的金属衬垫材料或形成在金属衬垫材料中的孔内。 然后，金属垫圈材料的胎圈部分的张力侧受到大于使用金属垫圈时将发生的特定应力的应力的预应力。
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公开(公告)号：US06898349B2
公开(公告)日：2005-05-24
申请号：US10132413
申请日：2002-04-25
申请人： Junji Yamauchi , Michiya Masuda , Shigeru Kawaguchi , Hisamatsu Nakano , Yuichi Yamamoto , Ryouichi Tazawa
发明人： Junji Yamauchi , Michiya Masuda , Shigeru Kawaguchi , Hisamatsu Nakano , Yuichi Yamamoto , Ryouichi Tazawa
CPC分类号： G02B6/12014 , G02B6/2813 , G02B2006/121
摘要： An optical multi-demultiplexer of the present invention comprises an input waveguide to which wavelength division multiple signals are applied, a plurality of output waveguides for demultiplexing and outputting the wavelength division multiple signals, an arrayed waveguide including a plurality of channel waveguides having different waveguide lengths, an input slab waveguide, and an output slab waveguide. The input slab waveguide is provided between the input waveguide and the arrayed waveguide. The output slab waveguide is provided between the arrayed waveguide and the output waveguides. The input slab waveguide is formed with tapered island regions having a refractive index lower than that of the core layer of the slab waveguide. The island regions are situated in positions opposite the channel waveguides of the arrayed waveguide.
摘要翻译： 本发明的光多路解复用器包括：施加波分多信号的输入波导，用于解复用和输出波分多信号的多个输出波导;阵列波导，包括具有不同波导长度的多个波导波导 输入平板波导和输出平板波导。 输入平板波导设置在输入波导和阵列波导之间。 输出平板波导设置在阵列波导和输出波导之间。 输入平板波导形成为具有比平板波导的芯层的折射率低的折射率的锥形岛状区域。 岛区位于与阵列波导的通道波导相对的位置。
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公开(公告)号：US06220606B1
公开(公告)日：2001-04-24
申请号：US07798339
申请日：1991-11-26
IPC分类号： F02F1100
CPC分类号： F16J15/08
摘要： A laminate-type metallic gasket comprising adjacent combustion chamber holes (A, A), a pair of bead substrates (3, 4) made of an elastic metallic plate with a bead (1) formed along each of the combustion chamber holes (A, A) and first and second intermediate plates (6, 8), in which peak portions of beads (1) are symmetrically opposite to each other, disposed between the two bead substrates (3, 4) according to the present invention wherein a first intermediate plate (6) is provided with a step (9) having a thickness less than that of a second intermediate (8) formed along an edge portion (7) of the combustion chamber holes (A, A). The intermediate plate (8) is disposed upon an outer surface which is made of a downwardly convex surface (10) by a formation of the step (9), and an edge portion (11) of the second intermediate plate (8) being folded back between the second intermediate plate (8) and the edge portion (7) of the combustion chamber holes (A, A) of the first intermediate plate (6) to form the compensating portion (12) having a thickness larger than the total thickness of the two intermediate plates (6, 8) at a portion, where peak portions of the beads (1) are respectively brought into contact with the first and second intermediate plates (6, 8), around the combustion chamber holes (A, A).
摘要翻译： 一种层叠型金属垫片，包括相邻的燃烧室孔（A，A），由弹性金属板制成的一对胎圈衬垫（3,4），所述胎圈衬垫沿着每个所述燃烧室孔（A， A和第一和第二中间板（6,8），其中珠子（1）的峰部彼此对称地布置在根据本发明的两个胎圈衬底（3,4）之间，其中第一中间体 板（6）设置有具有小于沿着燃烧室孔（A，A）的边缘部分（7）形成的第二中间体（8）的厚度的台阶（9）。 中间板（8）通过形成台阶（9）而设置在由向下凸出的表面（10）制成的外表面上，第二中间板（8）的边缘部分（11）被折叠 在第二中间板（8）和第一中间板（6）的燃烧室孔（A，A）的边缘部分（7）之间形成补偿部分（12），其厚度大于总厚度 在两个中间板（6,8）的一部分处，其中珠（1）的峰部分分别与第一和第二中间板（6,8）接触，在燃烧室孔（A，A ）。
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公开(公告)号：US06605228B1
公开(公告)日：2003-08-12
申请号：US09616224
申请日：2000-07-14
IPC分类号： C03B37075
CPC分类号： G02B6/132 , G02B2006/12038 , G02B2006/12147 , G02B2006/1215 , G02B2006/12176
摘要： Proposed is a method for fabricating a planar optical waveguide device having a plurality of core segments formed between a lower clad layer and an upper clad layer, in which a hot isostatic pressing process (HIP) is carried out during the fabrication process. The lower clad layer may consist of a substrate or a buffer layer formed on a substrate. Each layer may be formed either by a low-temperature film-forming process such as CVD or by the flame hydrolysis pressing process. The HIP process is also effective in eliminating voids when the core is formed in a recess of the lower clad layer. According to the tests conducted by the inventors, it was found that the HIP process can be conducted without requiring any protective layer or a gas barrier through proper selection of the condition for the HIP process, as opposed to the common belief that a protective layer or a gas barrier is essential for the HIP process.
摘要翻译： 提出了一种制造平面光波导器件的方法，该平面光波导器件具有形成在下覆盖层和上覆层之间的多个芯部分，其中在制造过程中进行热等静压加工（HIP）。 下覆盖层可以由形成在基板上的基板或缓冲层构成。 各层可以通过CVD等低温成膜法或者火焰水解加压法来形成。 当芯形成在下包层的凹部中时，HIP工艺也有效地消除空隙。 根据本发明人进行的试验，发现通过适当选择HIP工艺的条件，可以进行HIP工艺而不需要任何保护层或气体屏障，而不是普遍认为保护层或 气体屏障对HIP过程至关重要。
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