Patent · US Active

Method for flushing a fuel cell system

US10707504B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Sascha Mielke · Vancouver, CA
Pere Antoni Pastor Nigorra · Rötteln, DE
Sven Schmalzriedt · Eßlingen, DE
Muhammad Usman · Dhahran, SA

Key dates

Filing date	Oct 28, 2016
Grant date	Jul 7, 2020
Priority date	—
Expiry date	Jan 14, 2037

Classification

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

Abstract

A method for flushing a fuel cell system during a power-down cycle includes conveying air by an air conveying device through a cathode space of a fuel cell and releasing the conveyed air through an exhaust air line. An outlet valve is cyclically closed and opened during the power-down cycle, where an opening duration depends on an amount of air that is conveyed and the outlet valve connects an anode discharge line to the exhaust air line. The conveyed air is guided from a delivery side of the air conveying device directly to the exhaust air line at least in part through a system bypass.

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