Patent · US Active

Venting system, in particular for a fuel tank

US9297717B2 · kind B2 · utility

3Cited by

2References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Silke Haag · Beilstein, DE
Helmut Denz · Stuttgart, DE
Andreas Pape · Brakel, DE
Manfred Franz · Ditzingen, DE

Key dates

Filing date	Nov 25, 2011
Grant date	Mar 29, 2016
Priority date	—
Expiry date	Feb 16, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M25/0872
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a venting system, in particular for a fuel tank of a motor vehicle, which has a sorption filter for temporarily storing fuel evaporating from the fuel tank and a fluid-conveying conveying device situated between the sorption filter and an air supply or an intake manifold of an internal combustion engine, according to the present system, the conveying device is a bidirectional conveying device which is switchable in a first conveying direction in the direction of the internal combustion engine for regenerating the sorption filter and in a second conveying direction in the direction of the sorption filter for carrying out a fuel tank leak diagnosis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.