The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1987
Filed:
Nov. 03, 1986
Ronald J Wertheim, Hartford, CT (US);
International Fuel Cells Corporation, South Windsor, CT (US);
Abstract
The fuel cell stack is a phosphoric acid fuel cell stack which can operate at higher pressures because it does not use steam in the operation of the reformer portion. By being able to operate at higher pressures, the stack displays very low system heat rates and thus higher operating efficiency. The higher operating pressure also results in improved fuel cell power density and reduced cost. The stack is cooled by a coolant mixture of air and entrained water droplets comprising cathode exhaust and injected water fog. During the cooling operation, the water droplets in the coolant mixture are vaporized in the cooling passages of the stack. The exhaust from the cooling system after being heated is then delivered to an autothermal reformer where it reacts with a raw fuel reactant to produce hydrogen for operating the fuel cells in the stack. The reformer does not require a separate burner to operate properly.