公开(公告)号：US20040003713A1

公开(公告)日：2004-01-08

申请号：US10283173

申请日：2002-10-30

Applicant: Hitachi, Ltd.

Inventor： Shizuka Yamaguchi ,  Noboru Baba ,  Masaya Takahahsi ,  Katsuyoshi Terakado ,  Arata Kagiyama ,  Masayoshi Kotaki ,  Shogo Sawada ,  Kazuo Ojima ,  Hiroyuki Yamada ,  Hideki Machimura ,  Yukio Takahashi

IPC: F16J010/00

CPC classification number: C23C28/321 ,  C23C28/345 ,  F04B1/0404 ,  F04B53/162 ,  F05C2201/021 ,  F05C2201/903 ,  F05C2253/12 ,  Y10S428/936 ,  Y10T137/7036 ,  Y10T137/85978 ,  Y10T428/1275 ,  Y10T428/12944

Abstract: Disclosed herein is a fuel pump for an inter-cylinder direct fuel injection apparatus, in which occurrence of corrosion and attrition caused by cavitation or erosion can be suppressed, their resistance against the environment can be improved, and an excellent lifetime can be achieved in the case of the use of an aluminum material even if the temperature reaches as high as 100null C. or higher and the pressure reaches as high as 7 to 12 MPa. In the fuel pump for an inter-cylinder direct fuel injection apparatus, made of aluminum or an aluminum alloy, a coating film plated with NinullP or a NinullP based material is formed by electroless plating.

Abstract translation: 这里公开了一种用于缸内直接燃料喷射装置的燃料泵，其中可以抑制由空化或侵蚀引起的腐蚀和磨损的发生，可以提高其对环境的抵抗力，并且可以在 即使温度高达100℃以上，压力达到高达7〜12MPa，也可以使用铝材的情况。 在由铝或铝合金制成的缸内直接燃料喷射装置的燃料泵中，通过无电镀形成镀Ni-P或Ni-P基材料的涂膜。