| 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. |
