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Title: 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:
 [1];  [2]
  1. Manchester, CT
  2. Glastonbury, CT
Publication Date:
OSTI Identifier:
864311
Patent Number(s):
US 4345009
Assignee:
United Technologies Corporation (Hartford, CT)
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 = {},
url = {https://www.osti.gov/biblio/864311}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

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