Method and apparatus for controlling the fuel flow to a steam re

Details Method and apparatus for controlling the fuel flow to a steam re Method and apparatus for controlling the fuel flow to a steam re

1975-11-20

1977-01-11

Mack, John H.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 19, H01M 806

Patent

active

040028054

ABSTRACT:
A fuel cell system includes an ejector for pumping steam and fuel into a steam reformer. Steam is the primary flow through the ejector and fuel is the secondary flow. The rate of steam flow is metered by a variable area orifice in the ejector. The fuel passes through a fuel control valve before reaching the ejector. A pressure regulator maintains a constant pressure drop across a variable area orifice in the valve. The fuel flow is thus metered by the valve orifice area and not by the ejector pumping characteristics. Ejector back pressure is also eliminated as a factor affecting the amount of fuel pumped by the ejector. Means are provided to simultaneously control the orifice areas of the ejector and the fuel valve in order to maintain a desired ratio of steam to fuel for the steam reformer for each operational mode of the fuel cell. In a preferred embodiment this means is a mechanical linkage connecting the ejector and fuel valve to a common actuator.

REFERENCES:
patent: 3585077 (1971-06-01), Waldman

Affiliated with

Also associated with

Rating

Method and apparatus for controlling the fuel flow to a steam re does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling the fuel flow to a steam re, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling the fuel flow to a steam re will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1744429