Exhaust gas collection bag for accommodation of exhaust sample of internal combustion engine, has intermediate bellow-shaped shell section comprising circumferential folds lying in parallel plane and fastened to outer edge of cover walls

摘要

The bag (11) has an intermediate bellow-shaped shell section (14) comprising circumferential folds (15) lying in a parallel plane. The shell section is fastened to an outer edge of two congruent cover walls (12, 13), where the cover wall is flexible and rotatable. The cover wall is cambered outwardly, and the shell section consists of individual segments, which are connected to an inner folded valley (16) and a folded mount (17). The shell section is designed as a homogenous casing, and the circumferential folds are molded in the casing.