Patent · US Active

Determination of the lambda value of reformate

US7666533B2 · kind B2 · utility

0Cited by

6References

6Claims

0Family size

Assignee

WEBASTO AG · DE

Inventors

Stefan Kaeding · Zerrenthin, DE
Andreas Reinert · Dresden, DE

Key dates

Filing date	Dec 9, 2004
Grant date	Feb 23, 2010
Priority date	—
Expiry date	Dec 22, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A process and device for determination of the lambda value (λactual) of reformate (10) which is to be supplied to a fuel cell stack (12), by determining the lambda value (λactual) of the no-load voltage (U0) of the voltage on at least one fuel cell element (14). Furthermore, a process and device for lambda control of a reformer, utilizes the process and device for determining the lambda value to controller an actuator of a lambda-controlled reformer (16) for reaction of at least fuel (20) and air (22) into reformate (10), the reformer being connected to a fuel cell stack (12) to supply reformate (10) form the reformer (16) to the fuel stack (12).

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