Fuel cell engine

Abstract

A fuel cell engine comprises a box body, a containing cavity is formed in the box body, an air outlet and an air inlet are formed in the top face of the box body, a purging channel is formed in the box body, and a plurality of air inlet communicating holes penetrating to the purging channel are formed in the cavity wall, relative to the second direction, of the containing cavity in the first direction and the vertical direction in an array mode. The purging channel comprises a main channel and a plurality of branch channels, the main channel extends in the vertical direction and communicates with the air inlet, the plurality of branch channels are arranged at intervals in the vertical direction, the branch channels comprise first channels and a plurality of second channels, the first channels extend in the first direction, and the plurality of second channels are arranged at intervals in the first direction; the first channel extends in the first direction and is spaced from the main channel in the first direction, the second channel extends in the vertical direction, and the first channel communicates with the main channel and communicates with the second channel; according to the utility model, the accommodating cavity can be uniformly purged, and the condition that the local hydrogen concentration in the accommodating cavity is relatively high is prevented.

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