US5858568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell power supply system
Assignee: ZTEK Corp
•
Filing: 1996-09-19
•
Granted: 1999-01-12
•
Expires: 2016-09-19
Abstract
Abstract A power supply system for enhancing the economic viability of different modes of transportation that incorporate fuel cells to generate electricity. For example, the power supply system of the present invention provides for the off-board use of the electric power generated by an on-board power plant, such as a fuel cell, of a mobile vehicle power system, such as an electric car. Off-board use, or use remote from the vehicle, of the electrical power includes the delivery of power to a remote site. Off-board stations are provided for delivery of fuel to the vehicle and/or for receiving the electrical power generated by the fuel cell. The off-board station and the vehicle are appropriately equipped for quick and easy interconnection such that electrical power is drawn from the fuel cell for off-board use.
Inventors
- 👤 Michael S. Hsu
- 👤 Robin Y. P. Ong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:08
CPC Classifications
H; H01; H01M; H01M16/00; H01M16/003; B; B60; B60L; B60L58/00; B60L58/30; B60L58/32; B60L58/33; B60L58/34; H01M8/00; H01M8/04; H01M8/04223; H01M8/04268; H01M8/04298; H01M8/04313; H01M8/04537; H01M8/04604; H01M8/04619; H01M8/04992; H01M8/16; B60L2200/00; B60L2200/26; H01M2250/00; H01M2250/10; H01M2250/20; H01M2250/40; H01M2250/402; Y; Y02; Y02B; Y02B90/00; Y02B90/10; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02T; Y02T90/00; Y02T90/40; Y10; Y10S; Y10S429/00; Y10S429/90
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
139 words
A power system for converting fuel to electricity, comprising a mobile vehicle fuel cell power system and an off-board station, the mobile vehicle fuel cell power system includes a rechargeable battery, motor means coupled to said battery for propelling the vehicle, a fuel cell for converting fuel to electrical power and for connection to said battery to recharge said battery for powering, storage means for storing fuel for said fuel cell, and means for coupling to said off-board station for delivering thereto electrical power generated by said fuel cell when not required for propelling the mobile vehicle, and said off-board station includes means for receiving electrical power from said mobile vehicle fuel cell power system, and output means for providing at least a portion of said electrical power for use off-board of said mobile vehicle fuel cell power system.
Claim 2
Dependent Claim
139 words
A power system for converting fuel to electricity, comprising a mobile vehicle fuel cell power system and an off-board station, the mobile vehicle fuel cell power system includes a rechargeable battery, motor means coupled to said battery for propelling the vehicle, a fuel cell for converting fuel to electrical power and for connection to said battery to recharge said battery for powering, storage means for storing fuel for said fuel cell, and means for coupling to said off-board station for delivering thereto electrical power generated by said fuel cell when not required for propelling the mobile vehicle, and said off-board station includes means for receiving electrical power from said mobile vehicle fuel cell power system, and output means for providing at least a portion of said electrical power for use off-board of said mobile vehicle fuel cell power system.
Claim 3
Dependent Claim
47 words
The power system of claim 1 wherein said off-board station further comprises means for delivering fuel to said mobile vehicle fuel cell power system, and said mobile vehicle fuel cell power system includes means for receiving fuel from said off-board station for provision to said fuel cell.
Claim 4
Dependent Claim
13 words
The power system of claim 2 wherein said fuel comprises a hydrocarbon fuel.
Claim 5
Dependent Claim
28 words
The power system of claim 2 wherein said fuel is a hydrocarbon fuel, and said mobile vehicle fuel cell power system is capable of reforming the hydrocarbon fuel.
Claim 6
Dependent Claim
24 words
The power system of claim 2 further including a fuel meter for metering the fuel delivered to said mobile vehicle power system fuel cell.
Claim 7
Dependent Claim
33 words
The power system of claim 1 wherein said mobile fuel cell power system includes inverting means for converting direct current generated by said fuel cell to alternating current for on-board or off-board use.
Claim 8
Dependent Claim
48 words
The power system of claim 1 wherein said off-board station further includes inverting means for converting the electrical power supplied to said station from said mobile vehicle fuel cell power system from direct current to alternating current for use off-board of said mobile vehicle fuel cell power system.
Claim 9
Dependent Claim
31 words
The power system of claim 7 wherein said off-board station further includes power meter means for measuring the amount of alternating current power supplied by said output means for off-board use.
Claim 10
Dependent Claim
42 words
The power system of claim 1 wherein the electrical power provided by said output means for off-board use is direct current electrical power, and wherein said power system further includes a direct current power meter for measuring said direct current electrical power.
Claim 11
Dependent Claim
44 words
The power system according to claim 2 wherein said fuel cell is chosen from the group consisting of a solid oxide fuel cell, a molten carbonate fuel cell, a phosphoric acid fuel cell, an alkaline fuel cell, and a proton exchange membrane fuel cell.
Claim 12
Dependent Claim
36 words
The power system according to claim 2 wherein said mobile vehicle fuel cell power system further includes at least one of a fuel reformer and a fuel shifter to produce hydrogen-containing fuel for said fuel cell.
Claim 13
Dependent Claim
20 words
The power system of claim 11 further including a fuel meter for metering the fuel delivered to said power system.
Claim 14
Dependent Claim
21 words
The power system of claim 11 wherein the off-board station includes water supply means for providing water to said fuel reformer.
Claim 15
Dependent Claim
57 words
The power system of claim 11 wherein said off-board station further includes inverting means for converting the electrical power supplied to said station by said mobile vehicle fuel cell power system from direct current to alternating current, and wherein said output means provides said alternating current for use off-board of said mobile vehicle fuel cell power system.
Claim 16
Dependent Claim
31 words
The power system of claim 14 wherein said off-board station further includes power meter means for measuring the amount of alternating current power supplied by said output means for off-board use.
Claim 17
Dependent Claim
42 words
The power system of claim 11 wherein the electrical power provided by said output means for off-board use is direct current electrical power, and wherein said power system further includes a direct current power meter for measuring said direct current electrical power.
Claim 18
Dependent Claim
43 words
The power system of claim 11 wherein said fuel cell is chosen from the group consisting of a solid oxide fuel cell, a molten carbonate fuel cell, a phosphoric acid fuel cell, an alkaline fuel cell, and a proton exchange membrane fuel cell.
Claim 19
Dependent Claim
41 words
The power system of claim 2 further wherein said off-board station further comprises a fuel reformer for producing a hydrogen-containing fuel from a hydrocarbon fuel, and a second fuel storage means for storing said hydrogen-containing fuel produced by said fuel reformer.
Claim 20
Dependent Claim
25 words
The power system according to claim 18 further including a fuel meter for metering the fuel delivered to said mobile vehicle power system fuel cell.
Claim 21
Dependent Claim
18 words
The power system of claim 18 wherein said off-board station includes means for supplying water to said reformer.
Claim 22
Dependent Claim
43 words
The power system of claim 18, wherein said off-board station further comprises a fuel shifter for receiving hydrogen-containing fuel from said fuel reformer and for producing from said hydrogen-containing fuel a hydrogen fuel for supply to said mobile vehicle fuel cell power system.
Claim 23
Dependent Claim
72 words
The power system of claim 18 wherein said off-board station further includes inverting means for converting the electrical power received from said mobile vehicle fuel cell power system from direct current to alternating current, wherein said output means provides alternating current for use off-board of said mobile vehicle fuel cell power system, and power meter means for measuring the amount of alternating current power supplied by said output means for off-board use.
Claim 24
Dependent Claim
38 words
The power system of claim 18 wherein the electrical power provided by said output means for off-board use is direct-current electrical power, and wherein said power system further includes a direct-current power meter for measuring direct-current electrical power.
Claim 25
Dependent Claim
44 words
The power system according to claim 18 wherein said fuel cell is chosen from the group consisting of a solid oxide fuel cell, a molten carbonate fuel cell, a phosphoric acid fuel cell, an alkaline fuel cell, and a proton exchange membrane fuel cell.
Claim 26
Dependent Claim
93 words
A power system, comprising an off-board station for use with a mobile vehicle fuel cell power system having a fuel cell for converting fuel to electrical power, electrical connection means adapted for receiving electrical power generated by the fuel cell of the mobile vehicle fuel cell power system and adapted for supplying power generated by the fuel cell for use off-board from said mobile vehicle fuel cell power system, and communication means for communicating information regarding at least one of the on-board fuel cell operation and off-board station condition parameters to another location.
Claim 27
Dependent Claim
93 words
A power system, comprising an off-board station for use with a mobile vehicle fuel cell power system having a fuel cell for converting fuel to electrical power, electrical connection means adapted for receiving electrical power generated by the fuel cell of the mobile vehicle fuel cell power system and adapted for supplying power generated by the fuel cell for use off-board from said mobile vehicle fuel cell power system, and communication means for communicating information regarding at least one of the on-board fuel cell operation and off-board station condition parameters to another location.
Claim 28
Dependent Claim
26 words
The power system of claim 25 further including fuel supply means for supplying fuel to a mobile vehicle fuel cell power system from the off-board station.
Claim 29
Dependent Claim
20 words
The power system of claim 25 further comprising securing means for preventing unwanted access to the fuel and electric connections.
Claim 30
Dependent Claim
33 words
The power system of claim 26 further including means for supplying a reactant to said mobile vehicle fuel cell power supply system for use in a fuel reformation process from the off-board station.
Claim 31
Dependent Claim
16 words
The power system of claim 28 wherein the reactant supply means includes means for supplying water.
Claim 32
Dependent Claim
19 words
The power system of claim 29 wherein the water supply further includes means for preventing said water from freezing.
Claim 33
Dependent Claim
16 words
The power system of claim 25 wherein the communication means comprises at least one telecommunication link.
Claim 34
Dependent Claim
29 words
The power system of claim 26 further including a fuel meter for metering the fuel provided to said mobile vehicle power system fuel cell by said fuel supply means.
Claim 35
Dependent Claim
54 words
The power system of claim 26 further including inverting means for converting electrical power received from said mobile vehicle fuel cell power system from direct current to alternating current, wherein said electrical connection means provides at least a portion of said alternating current for use off-board of said mobile vehicle fuel cell power system.
Claim 36
Dependent Claim
28 words
The power system of claim 33 further including power meter means for measuring the amount of alternating current power supplied by said electrical connection means for off-board use.
Claim 37
Dependent Claim
26 words
The power system of claim 27 wherein the securing means includes at least one locked enclosure configured to house one of the fuel and electrical connections.
Claim 38
Dependent Claim
35 words
The power system of claim 35 wherein said enclosure includes a glass panel mounted on one wall thereof, and a striking element coupled to the enclosure for breaking the glass panel to access said connections.
Claim 39
Dependent Claim
41 words
The power system of claim 26 wherein at least one of said fuel supply means and said electrical connection means includes a connector for selected disconnection and connection of said connector to and from said mobile vehicle fuel cell power system.
Claim 40
Dependent Claim
28 words
The power system of claim 25, further comprising a gas turbine generator operating in tandem with said mobile fuel cell power system for converting said fuel to electricity.
Claim 41
Dependent Claim
31 words
The power system of claim 25, further comprising a heating, ventilation and air conditioning unit operating in tandem with said mobile fuel cell power system for converting said fuel to electricity.
Claim 42
Dependent Claim
119 words
A power system for converting fuel to electricity, comprising a first mobile vehicle fuel cell power system and a second mobile electrical power system, the first mobile vehicle fuel cell electric power system including a first rechargeable battery, a fuel cell for converting fuel to electricity and for connection to said battery to recharge said battery, a storage means for storing fuel for said fuel cell, and means for coupling to said second mobile power system for delivering thereto electrical power generated by said fuel cell, and said second mobile power system including a second rechargeable battery, and means for receiving electrical power from said first mobile vehicle fuel cell power system so as to recharge said second battery.
Claim 43
Dependent Claim
119 words
A power system for converting fuel to electricity, comprising a first mobile vehicle fuel cell power system and a second mobile electrical power system, the first mobile vehicle fuel cell electric power system including a first rechargeable battery, a fuel cell for converting fuel to electricity and for connection to said battery to recharge said battery, a storage means for storing fuel for said fuel cell, and means for coupling to said second mobile power system for delivering thereto electrical power generated by said fuel cell, and said second mobile power system including a second rechargeable battery, and means for receiving electrical power from said first mobile vehicle fuel cell power system so as to recharge said second battery.
Claim 44
Dependent Claim
114 words
A power system for converting fuel to electricity, comprising a mobile vehicle power system and an off-board station, the mobile vehicle power system including a rechargeable battery, power plant means for propelling the vehicle and for conversion of fuel to electrical power and for recharging said battery, a storage means for storing fuel for said power plant, and means for electrical coupling to said off-board station for delivering thereto electrical power generated by said power plant, and said off-board station including means for receiving electrical power from said mobile vehicle power plant, and output means for providing at least a portion of said electrical power for use off-board of said mobile vehicle power system.
Claim 45
Dependent Claim
114 words
A power system for converting fuel to electricity, comprising a mobile vehicle power system and an off-board station, the mobile vehicle power system including a rechargeable battery, power plant means for propelling the vehicle and for conversion of fuel to electrical power and for recharging said battery, a storage means for storing fuel for said power plant, and means for electrical coupling to said off-board station for delivering thereto electrical power generated by said power plant, and said off-board station including means for receiving electrical power from said mobile vehicle power plant, and output means for providing at least a portion of said electrical power for use off-board of said mobile vehicle power system.
Claim 46
Dependent Claim
42 words
The power system of claim 41 wherein said mobile vehicle power system includes means for receiving fuel from said off-board station for provision to said power plant, and said off-board station includes means for delivering fuel to said mobile vehicle power system.
References Cited (Backward Citations)
US3321334A
Cited
US3441444A
Cited
US3443115A
Cited
US3595699A
Cited
US3677823A
Cited
US3971454A
Cited
US3843410A
Cited
US4081693A
Cited
US4277737A
Cited
US4614628A
Cited
GB2132108A
Cited
JPS59136006A
Cited
US4962462A
Cited
US4961151A
Cited
US4931947A
Cited
US4853100A
Cited
US4721556A
Cited
US4629537A
Cited
JPS632263A
Cited
JPS63143756A
Cited
US4713303A
Cited
JPH01166470A
Cited
US4988283A
Cited
EP0334474A2
Cited
JPH01320773A
Cited
US5105142A
Cited
DE4001684A1
Cited
DE4116899A1
Cited
WO1993009572A2
Cited
US5332630A
Cited
US5248566A
Cited
US5470670A
Cited
US5631532A
Cited
US5532573A
Cited
US5678647A
Cited
EP0755088A2
Cited
US5725062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-11 | 2002-07-13 | 2003-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-11 | 2006-07-13 | 2007-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-11 | 2010-07-13 | 2011-01-12 | $7700.00 | Window Closed / Lapsed |