公开(公告)号：US5802716A

公开(公告)日：1998-09-08

申请号：US534611

申请日：1995-09-27

申请人： Akihisa Nishimura ,  Fumio Shimizu ,  Kenichi Suzuki

发明人： Akihisa Nishimura ,  Fumio Shimizu ,  Kenichi Suzuki

IPC分类号： B23K35/28 ,  B23K35/36 ,  F01L3/22 ,  B23P15/00

CPC分类号： B23K35/3605 ,  B23K35/282 ,  F01L3/22 ,  Y10T29/4927 ,  Y10T29/49314

摘要： A method for bonding valve seats for intake and exhaust valves to an engine cylinder head. Valve seats are brazed to an aluminum cylinder head using an Al--Zn type brazing material and a fluoride type flux. The brazing material contains 70 to 90 % by weight of Zn. The brazing is preferably carried out at a temperature of 470.degree. to 520.degree. C. To allow the brazing material and flux to be present between the cylinder head and each valve seat, the cylinder head contains U-grooves formed around the opening of each intake or exhaust port. The U-groove consists of an annular step formed along the opening of the intake or exhaust port and a bank extended along the inner circumference of the step. The valve seats are placed in the U-grooves, which are then filled with the brazing material and flux, to carry out brazing of the valve seats onto the cylinder head. After completion of the brazing, the banks are removed to complete bonding of the valve seats to the cylinder head. In another method, a valve seat is directly bonded to a cylinder head by applying a fluoride type flux on the valve seat.

摘要翻译： 一种用于将进气和排气阀的阀座结合到发动机气缸盖的方法。 使用Al-Zn型钎焊材料和氟化物型焊剂将阀座钎焊到铝制气缸盖上。 该钎料含有70〜90重量％的Zn。 钎焊优选在470℃至520℃的温度下进行。为了使钎焊材料和焊剂存在于气缸盖和每个阀座之间，气缸盖包含围绕每个进气口的开口形成的U形槽 或排气口。 U形槽由沿进气或排气口的开口形成的环形台阶和沿着台阶的内圆周延伸的堤岸组成。 阀座放置在U形槽中，然后用钎焊材料和焊剂填充，以便将阀座钎焊到气缸盖上。 在钎焊完成之后，移除堤以完成阀座与气缸盖的接合。 在另一种方法中，通过在阀座上施加氟化物型助焊剂，将阀座直接接合到气缸盖。

公开(公告)号：US06390030B1

公开(公告)日：2002-05-21

申请号：US09580531

申请日：2000-05-26

申请人： Ryuhei Isogawa ,  Yasuhiro Nobata ,  Masatsune Kondo ,  Shigeru Ogino ,  Kenji Kimura ,  Masayoshi Taki ,  Akihisa Nishimura ,  Masaaki Yamaoka ,  Yoshimasa Negishi ,  Hideo Taguchi ,  Norihiko Saito ,  Atsushi Takumi

发明人： Ryuhei Isogawa ,  Yasuhiro Nobata ,  Masatsune Kondo ,  Shigeru Ogino ,  Kenji Kimura ,  Masayoshi Taki ,  Akihisa Nishimura ,  Masaaki Yamaoka ,  Yoshimasa Negishi ,  Hideo Taguchi ,  Norihiko Saito ,  Atsushi Takumi

IPC分类号： C01B332

CPC分类号： H01M8/0631 ,  B01J8/0496 ,  B01J19/2485 ,  B01J2208/00061 ,  B01J2208/00309 ,  B01J2208/0053 ,  B01J2208/00716 ,  B01J2219/002 ,  B01J2219/00231 ,  C01B3/323 ,  C01B3/38 ,  C01B3/583 ,  C01B2203/0244 ,  C01B2203/044 ,  C01B2203/047 ,  C01B2203/0811 ,  C01B2203/0822 ,  C01B2203/0827 ,  C01B2203/0838 ,  C01B2203/0844 ,  C01B2203/085 ,  C01B2203/0866 ,  C01B2203/0883 ,  C01B2203/1023 ,  C01B2203/1076 ,  C01B2203/1082 ,  C01B2203/1217 ,  C01B2203/1223 ,  C01B2203/1235 ,  C01B2203/1276 ,  C01B2203/1288 ,  C01B2203/143 ,  C01B2203/1604 ,  C01B2203/1609 ,  C01B2203/1619 ,  C01B2203/1633 ,  C01B2203/1638 ,  C01B2203/169 ,  C01B2203/1695 ,  C01B2203/82 ,  Y02P20/128

摘要： A fuel reformer suited for mounting on a vehicle is provided. A raw material gas containing methanol and water is vaporized at a vaporization section 30. The vaporized gas flows horizontally to a reforming section 60 with monolithic catalyst 70. The reforming section is divided into two sides, a front side 62 and a rear side 64, with an interconnecting pipe 66 bent at 180 degrees, for connecting the front and rear sides. By making the material gas flow horizontally, even when the reformer is mounted to a vehicle which has a larger space in its horizontal direction than in its vertical direction, especially a small passenger car, the contact time period between gas and catalyst can be extended. By bending the reforming section by 180 degrees, the size of the reformer can be reduced so that the reformer is suited for mounting on a vehicle having limited space. Because the vaporization section 30 and the CO reducing section 80 can be placed adjacent to each other, by using heat generated at the CO reducing section, the heat loss during pre-heating of the methanol and water can be reduced.

摘要翻译： 提供了适合于安装在车辆上的燃料重整器。 含有甲醇和水的原料气体在蒸发部分30蒸发。汽化的气体水平流动到具有整体催化剂70的重整部分60.重整部分分为两侧，前侧62和后侧64， 具有弯曲180度的互连管66，用于连接前侧和后侧。 通过使材料气体水平地流动，即使将重整器安装到水平方向上的空间大于其垂直方向的车辆，特别是小型乘用车，也可以延长气体与催化剂的接触时间。 通过将重整部分弯曲180度，可以减小重整器的尺寸，使得重整器适合于安装在具有有限空间的车辆上。 由于蒸发部分30和CO还原部分80可以彼此相邻放置，所以通过使用在CO还原部分产生的热量，可以减少甲醇和水的预热期间的热损失。