Fuel cell stack compressive loading system
Abstract
A fuel cell module comprising a stack of fuel cells with reactant gas manifolds sealed against the external surfaces of the stack includes a constraint system for providing a compressive load on the stack wherein the constraint system maintains the stack at a constant height (after thermal expansion) and allows the compressive load to decrease with time as a result of the creep characteristics of the stack. Relative motion between the manifold sealing edges and the stack surface is virtually eliminated by this constraint system; however it can only be used with a stack having considerable resiliency and appropriate thermal expansion and creep characteristics.
- Inventors:
-
- Manchester, CT
- Glastonbury, CT
- Issue Date:
- OSTI Identifier:
- 864311
- Patent Number(s):
- 4345009
- Assignee:
- United Technologies Corporation (Hartford, CT)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- ET-77-C-03-1471
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- fuel; cell; stack; compressive; loading; module; comprising; cells; reactant; gas; manifolds; sealed; external; surfaces; constraint; providing; load; maintains; constant; height; thermal; expansion; allows; decrease; time; result; creep; characteristics; relative; motion; manifold; sealing; edges; surface; virtually; eliminated; considerable; resiliency; appropriate; manifold seal; gas manifolds; fuel cell; virtually eliminated; external surface; relative motion; cell stack; thermal expansion; fuel cells; reactant gas; compressive load; stack surface; manifold sealing; cell module; external surfaces; sealing edges; module comprising; gas manifold; virtually eliminate; constant height; /429/
Citation Formats
Fahle, Ronald W, and Reiser, Carl A. Fuel cell stack compressive loading system. United States: N. p., 1982.
Web.
Fahle, Ronald W, & Reiser, Carl A. Fuel cell stack compressive loading system. United States.
Fahle, Ronald W, and Reiser, Carl A. Fri .
"Fuel cell stack compressive loading system". United States. https://www.osti.gov/servlets/purl/864311.
@article{osti_864311,
title = {Fuel cell stack compressive loading system},
author = {Fahle, Ronald W and Reiser, Carl A},
abstractNote = {A fuel cell module comprising a stack of fuel cells with reactant gas manifolds sealed against the external surfaces of the stack includes a constraint system for providing a compressive load on the stack wherein the constraint system maintains the stack at a constant height (after thermal expansion) and allows the compressive load to decrease with time as a result of the creep characteristics of the stack. Relative motion between the manifold sealing edges and the stack surface is virtually eliminated by this constraint system; however it can only be used with a stack having considerable resiliency and appropriate thermal expansion and creep characteristics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}
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