IP Library Granted Patent US 7,550,113
Granted Patent B2
US 7,550,113 · App. 10/711,395 · Granted Jun 23, 2009

System for maintaining hydrogen purity in electrical generators and method thereof

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Quick Facts
Patent No.
US 7,550,113
App. No.
10/711,395
Granted
Jun 23, 2009
Kind
B2
Abstract

A method and apparatus is provided for an a system for maintaining hydrogen purity in an electrical power generator. The purity system includes: a generator, a hydrogen generator configured to provide hydrogen gas to the generator, a purity monitor for detecting the level of hydrogen purity in the generator and providing a signal when the purity drops below a predetermined threshold. The system automatically compensates for gas loss or contamination to maintain the desired level of efficiency in the electrical generator.

Claims (11)

1. A system for maintaining hydrogen purity in an electrical generator, the system comprising: a hydrogen generator; a hydrogen cooled electrical generator, said electrical generator fluidly coupled to receive hydrogen gas from said hydrogen generator by a gas conduit; a vent line having a first and second end, said first end being directly fluidly coupled to said electrical generator and said second end being fluidly coupled to the atmosphere; a valve coupled to said vent line between said hydrogen cooled generator and said vent line second end; a hydrogen purity monitor operably coupled to said electrical generator and said valve, said hydrogen purity monitor including means for transmitting a signal to said valve; and, a pressure transducer fluidly coupled to said conduit, said pressure transducer transmitting a signal to said hydrogen generator in response to the gas pressure in said electrical generator falling below a first threshold wherein said hydrogen generator produces hydrogen gas in response to said pressure transducer signal, wherein said valve operates to release hydrogen gas directly from said electrical generator to the atmosphere in response to a signal from said hydrogen purity monitor.

2. The system of claim 1 , wherein said hydrogen generator is configured to generate hydrogen gas at a second threshold pressure, said hydrogen generator producing hydrogen gas in response to a reduction in pressure in said electrical generator.

3. The system of claim 2 wherein said hydrogen generator is an electrochemical generator having at least one polymer electrode membrane.

4. The system of claim 3 further comprising a pressure monitor coupled to said hydrogen cooled electrical generator.

5. The system of claim 4 further comprising said hydrogen purity monitor coupled to said electrical generator.

6. The system of claim 2 wherein said hydrogen purity monitor provides a signal to said valve when the purity of hydrogen gas in said electrical generator is less than 99% pure.

7. The system of claim 2 wherein said hydrogen purity monitor provides a signal to said valve when the purity of hydrogen gas in said electrical generator is less than 95% pure.

8. A system for maintaining hydrogen purity in an electrical generator, the system comprising: a hydrogen generator, said hydrogen generator having means for disassociating water into hydrogen and oxygen gas; a hydrogen cooled electrical generator coupled to a turbine, said hydrogen generator being fluidly coupled to directly transfer hydrogen gas to said hydrogen cooled electrical generator by a gas conduit; a vent line having a first and second end, said first end being directly fluidly coupled to said hydrogen cooled electrical generator and said second end being fluidly coupled to the atmosphere; a valve coupled to said vent line between said hydrogen cooled electrical generator and said vent line second end, said valve being configured to release hydrogen gas from said electrical generator through said vent line at a predetermined hydrogen gas pressure level; a hydrogen purity monitor operably coupled to said electrical generator and said hydrogen generator; and, a pressure transducer fluidly coupled to said conduit, said pressure transducer transmitting a signal to said hydrogen generator in response to the gas pressure in said electrical generator falling below a first threshold wherein said hydrogen generator produces hydrogen gas in response to said pressure transducer signal, wherein said valve operates to release hydrogen gas directly from said electrical generator to the atmosphere in response to a signal from said hydrogen purity monitor.

9. The system of claim 8 wherein said hydrogen generator produces hydrogen gas at predetermined rate in response to a signal from said pressure transducer.

10. The system of claim 9 wherein said hydrogen generator is an electrochemical generator having at least one polymer electrode membrane.

11. The system of claim 8 wherein said valve releases hydrogen gas when the gas pressure in said electrical generator exceeds 100 psi.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Feb 19, 2013
From: PERSEUS PARTNERS VII, L.P.
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 029834/0750 →
SECURITY AGREEMENT Recorded Jun 8, 2007
From: PROTON ENERGY SYSTEMS, INC.
To: PERSEUS PARTNERS VII, L.P.
Reel/Frame 019399/0436 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2005
From: GUDINO, LUISA; SPERANZA, A. JOHN
To: PROTON ENERGY SYSTEMS, INC.
Reel/Frame 016541/0284 →