| 摘要 |
PCT No. PCT/DE97/02163 Sec. 371 Date Jun. 19, 1998 Sec. 102(e) Date Jun. 19, 1998 PCT Filed Sep. 24, 1997 PCT Pub. No. WO98/19064 PCT Pub. Date May 7, 1998A tank venting system for motor vehicles, having an internal combustion engine supplied from a fuel tank. A filter housing with an adsorption filter, and an air inlet and an air outlet that can be connected to a venting neck of the fuel tank. An air pump device for error diagnosis, which is integrated with a pump housing that has a pump inlet and a pump outlet. To attain a compact design of the tank venting system that is economical in terms of installation space, the pump housing is mounted with the pump outlet oriented coaxially to the air inlet on the filter housing and secured on the filter housing by means of spring-elastic fastening elements. The transition between the pump outlet and the air inlet is sealed off in airtight fashion.
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