Patent · US Active

Fuel vapor filter purging of a supercharged internal combustion engine in induction mode

US11542898B2 · kind B2 · utility

0Cited by

6References

10Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Alexander Niehoff · Wolfsburg, DE
Michael Mazur · Dearborn Heights, US
Stefan Behrendt · Kiel, DE
Wolfram Gottschalk · Magdeburg, DE
Roman Grabowski · Leiferde, DE

Key dates

Filing date	Jul 1, 2021
Grant date	Jan 3, 2023
Priority date	—
Expiry date	Jul 1, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method is provided for operating an internal combustion engine, which comprises at least one combustion unit, a fresh gas tract for supplying fresh gas to the combustion unit, and a fuel tank system. A fresh gas compressor as well as a differential pressure valve are integrated into the fresh gas tract. The first purge gas line opens into a first section of the fresh gas tract, which is situated downstream from the differential pressure valve as well as upstream from the fresh gas compressor, while the second purge gas line opens into a second section of the fresh gas tract situated downstream from the fresh gas compressor. The differential pressure valve is at least partially closed at least temporarily during an intake mode of the internal combustion engine with fuel vapor filter purging, and purge gas is introduced into the fresh gas tract via the first purge gas line.

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