Patent · US Active

Exhaust air guide of a fuel cell stack in a motor vehicle

US9774045B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Stefan HAASE · Munich, DE
Marcel STERZENBACH · Landshut, DE
Marco Schwarze · Munich, DE

Key dates

Filing date	Jan 20, 2016
Grant date	Sep 26, 2017
Priority date	—
Expiry date	Jan 20, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/40
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An exhaust air guide of a fuel cell stack is provided, in particular in a motor vehicle, with a cooling device which belongs to the functional environment of the fuel cell stack and is in the form of a cooler structure through which ambient air flows. At least some of the exhaust air of the fuel cell stack is guided into the cooler structure or behind the cooler structure, as viewed in the direction of flow of the ambient air through the cooler structure, to such an extent that, at the cooler structure, the exhaust air flow brings about an increase in the mass flow of the ambient air through the cooler structure in accordance with the jet pump principle or, at the cooler structure, the exhaust air flow, in accordance with the jet pump principle, brings about a pressure difference conveying at least a portion of the ambient air through the cooler structure.

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