HOSE ASSEMBLY FOR AN ENGINE AIR INTAKE SYSTEM

摘要

A hose assembly (20) for engine intake air comprises a hose (22) having connection regions (22a, 22b) at first and second ends of the hose and an axially compressible and extendable bellows region (22c) disposed between the two connection regions. In the invention, an inextensible inner tube (24) is disposed within the hose (22) which has a gas-impermeable wall. The inner tube (24) has first and second ends (24a, 24b) that seal, respectively, against the first and second connection regions (22a, 22b) of the hose when the bellows region is compressed. At least one of the first and second ends of the inner tube (24a) separates from the adjacent connection region (22a) of the hose (22) when the bellows region (22c) is extended.