Patent ID: 6123216
Filing Date: 2000-09-26
Classification: F02B

Abstract:
A double-chamber tank comprisinga first storage tank and a second storage tank, which are partitioned by a partitioning wall integrally formed with said storage tanks;wherein said first storage tank, said second storage tank and said partitioning wall are constituted by a first split counterpart and a second split counterpart, both splitting said first storage tank, said second storage tank and said partitioning wall into two sections;wherein both said first split counterpart and second split counterpart are molded separately by means of an injection molding method and are bonded with each other through a bonding between a joining edge of said first counterpart and a joining edge of said second split counterpart, which is effected by means of vibration welding;wherein the joining edge of said first counterpart and the joining edge of said second split counterpart are constituted by a flat surface that is substantially planar and free from recesses or projections, andwherein the partitioning wall includes a plate portion and a tube portion.