Patent ID: 7137466
Filing Date: 2006-11-21
Classification: B60K,B60L,H01M,Y02E,Y02T

Abstract:
1. An arrangement structure for a fuel cell system in a vehicle, comprising: a fuel cell box which holds a fuel cell; a sub-frame which holds a hydrogen tank, said sub-frame being placed so as to be aligned with said fuel cell box; and a fuel gas dilution box which is disposed between said fuel cell and said sub-frame, wherein said fuel gas dilution box mixes hydrogen gas, which is discharged when a purging process of water remaining at an anode or of nitrogen contaminating hydrogen gas is carried out, with air exhausted from a cathode so that concentration of hydrogen is reduced; said sub-frame is a member formed in a rectangular shape and said hydrogen tank is fixed thereto by a band, said sub-frame being fixed to a rear frame and including a flat surface at a front thereof; said fuel cell box is disposed below a floor so as to extend over left and right floor frames which are connected to the rear frame; said fuel cell box includes a flat surface at a rear thereof, said fuel cell box being disposed close to said sub-frame with the flat surface at the rear of said fuel cell box facing the flat surface at the front of said sub-frame; and said fuel gas dilution box is fixed to said fuel cell box in a state such that the fuel gas dilution box contacts a wall portion at the rear of said fuel cell box so that no space is present therebetween.