Patent · US Active

Motor vehicle

US8528527B2 · kind B2 · utility

2Cited by

8References

6Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Thomas Rauner · Blaubeuren, DE
Stefan Fischer · Lichtenfels, DE

Key dates

Filing date	Jan 14, 2011
Grant date	Sep 10, 2013
Priority date	—
Expiry date	Mar 15, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M37/20
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A motor vehicle has an internal combustion engine, a fuel tank and a tank ventilation device. The fuel tank is connected via a first and second tank ventilation lines to an intake tract of the internal combustion engine. A hydrocarbon store has first and second chambers separated by a diaphragm. The first chamber is connected in communicating fashion to the first tank ventilation line and the second chamber is connected in communicating fashion to the second tank ventilation line. Valves are arranged in the first tank ventilation line upstream and downstream of the first chamber. A valve is arranged in the second tank ventilation line between the second chamber and the intake tract.

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