Patent · US Expired

Method and apparatus for conveying a cryogenically-stored fuel

US6526760B2 · kind B2 · utility

6Cited by

5References

20Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Hans Fickel · Moosburg an der Isar, DE
Juergen Ringler · Kissing, DE

Key dates

Filing date	Dec 7, 2001
Grant date	Mar 4, 2003
Priority date	—
Expiry date	Dec 7, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method and an apparatus for conveying a cryogenically-stored fuel to an internal-combustion engine for providing a combustible working gas. In accordance with the invention, the cryogenically-stored fuel is drawn, in the liquid state, from a thermally-insulated fuel tank, and forced into a fuel line by a conveying device. At least from time to time, within the scope of the operation of the conveying device, the pressure in the fuel tank is increased by an amount that is larger than the difference between a drop in the supply-flow pressure occurring on the intake side of the conveying device and the difference between the dominant tank pressure at a pump-inlet point and the boiling pressure dictated by the instantaneous fuel temperature.

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