US4686375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uninterruptible power supply cogeneration system
Assignee: POWER GROUP INTERNATIONAL CORP
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Filing: 1986-03-05
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Granted: 1987-08-11
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Expires: 2006-03-05
Abstract
Abstract A power system for providing an uninterrupitible power supply comprising a first generator connected to a primary external load, a second generator connected to a secondary external load, and a prime mover connected to said first and second generators by a common shaft. The first generator is electrically isolated from the secondary external load. The prime mover is an internal combustion engine that supplies rotational movement to the common shaft. The secondary external load is an electrical utility. A thermal recovery system is connected to the internal combustion engine.
Inventors
- 👤 Carlos F. Gottfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:34
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/066
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
108 words
A power system for providing an uninterruptible power supply comprising: a first generator means for supplying energy to a primary load; a second generator means connected to an electrical utility, said first and second generator means being connected by a common shaft, said first generator means being electrically isolated from said electrical utility; prime mover means connected to said common shaft, said prime mover means for supplying mechanical energy to said shaft; and controller means interposed electrically between said second generator means and said secondary external load, said controller means causing said second generator means to become disconnected from said secondary load upon interruptions in said secondary load.
Claim 2
Dependent Claim
108 words
A power system for providing an uninterruptible power supply comprising: a first generator means for supplying energy to a primary load; a second generator means connected to an electrical utility, said first and second generator means being connected by a common shaft, said first generator means being electrically isolated from said electrical utility; prime mover means connected to said common shaft, said prime mover means for supplying mechanical energy to said shaft; and controller means interposed electrically between said second generator means and said secondary external load, said controller means causing said second generator means to become disconnected from said secondary load upon interruptions in said secondary load.
Claim 3
Dependent Claim
30 words
The system of claim 1, said first generator means comprising a three-phase synchronous A.C. generator adapted so as to produce power relative to the rotational movement of said common shaft.
Claim 4
Dependent Claim
29 words
The system of claim 1, further comprising: a voltage regulator electrically connected to the output of said first generator means for maintaining the desired voltage to said primary load.
Claim 5
Dependent Claim
22 words
The system of claim 3, said desired voltage from said first generator means being adjustable to the requirements of said primary load.
Claim 6
Dependent Claim
42 words
The system of claim 1, said controller means responsive to the restoration of power in said secondary external load, said controller means switchably causing said second generator means to become electrically connected to said secondary external load upon said restoration of power.
Claim 7
Dependent Claim
15 words
The system of claim 1, said second generator means comprising a three-phase synchronous A.C. generator.
Claim 8
Dependent Claim
106 words
A power system for providing an uninterruptible power supply comprising: a first generator means for supplying energy to a primary load; a second generator means connected to an electrical utility, said first and second generator means connected by a common shaft, said first and second generator means being electrically isolated from said electrical utility; prime mover means connected to said common shaft, said prime mover means for supplying mechanical energy to said shaft; and field control means electrically connected to the output of said first generator means and to said second generator means, said field control means for regulating the energy passing to said electrical utility.
Claim 9
Dependent Claim
106 words
A power system for providing an uninterruptible power supply comprising: a first generator means for supplying energy to a primary load; a second generator means connected to an electrical utility, said first and second generator means connected by a common shaft, said first and second generator means being electrically isolated from said electrical utility; prime mover means connected to said common shaft, said prime mover means for supplying mechanical energy to said shaft; and field control means electrically connected to the output of said first generator means and to said second generator means, said field control means for regulating the energy passing to said electrical utility.
Claim 10
Dependent Claim
31 words
The system of claim 1, said prime mover means hving a capacity to generate sufficient energy in said first generator means to meet the peak load requirements of said primary load.
Claim 11
Dependent Claim
14 words
The system of claim 1, said prime mover means being an internal combustion engine.
Claim 12
Dependent Claim
13 words
The system of claim 9, said prime mover means being a diesel engine.
Claim 13
Dependent Claim
35 words
The system of claim 9, further comprising: thermal recovery means connected to said prime mover means for capturing heat from said prime mover means, said thermal recovery means passing said heat external of said system.
Claim 14
Dependent Claim
51 words
The system of claim 11, said thermal recovery means comprising: fluid delivery means communicating with the interior of said prime mover means, said fluid delivery means passing heat absorbing liquid into said internal combustion engine and passing a heated liquid from said internal combustion engine for use external of said system.
Claim 15
Dependent Claim
112 words
A power system comprising: a first generator means for supplying energy to a primary load; a cogeneration means connected electrically to an electrical utility, said primary load electrically isolated from said electric utility; a rotatable shaft connecting said first generator means and said cogeneration means; a prime mover means operably connected to said rotatable shaft, said prime mover means for imparting rotation and motion to said rotatable shaft, said prime mover means electrically isolated from said electrical utility; and controller means electrically interposed between said cogeneration means and said electrical utility, said controller means for causing said cogeneration means to become disconnected from said electrical utility upon interruptions in said electrical utility.
Claim 16
Dependent Claim
112 words
A power system comprising: a first generator means for supplying energy to a primary load; a cogeneration means connected electrically to an electrical utility, said primary load electrically isolated from said electric utility; a rotatable shaft connecting said first generator means and said cogeneration means; a prime mover means operably connected to said rotatable shaft, said prime mover means for imparting rotation and motion to said rotatable shaft, said prime mover means electrically isolated from said electrical utility; and controller means electrically interposed between said cogeneration means and said electrical utility, said controller means for causing said cogeneration means to become disconnected from said electrical utility upon interruptions in said electrical utility.
Claim 17
Dependent Claim
51 words
The power system of claim 13, said prime mover means comprising an internal combustion engine, said power system further comprising: thermal recovery means connected to said internal combustion engine for capturing heat from said internal combustion engine, said thermal recovery means passing said heat to a use external of said system.
Claim 18
Dependent Claim
40 words
The power system of claim 13, said first generator means comprising a three-phase synchronous A.C. generator adapted so as to produce power relative to the rotational movement of said rotatable shaft, said cogeneration means comprising a three-phase synchronous A.C. generator.
Claim 19
Dependent Claim
114 words
A power system comprising: a first generator means for supplying energy to a primary load; a cogeneration means connected electrically to an electrical utility, said primary load electrically isolated from said electric utility; a rotatable shaft connecting said first generator means and said cogeneration means; a prime mover means operably connected to said rotatable shaft, said prime mover means for imparting rotation and motion to said rotatable, said prime mover means electrically isolated from said electrical utility; and field control means electrically connected to the output of said first generator means and to said cogeneration means, said field control means for regulating the energy passing to said cogeneration means from said first generator means.
Claim 20
Dependent Claim
114 words
A power system comprising: a first generator means for supplying energy to a primary load; a cogeneration means connected electrically to an electrical utility, said primary load electrically isolated from said electric utility; a rotatable shaft connecting said first generator means and said cogeneration means; a prime mover means operably connected to said rotatable shaft, said prime mover means for imparting rotation and motion to said rotatable, said prime mover means electrically isolated from said electrical utility; and field control means electrically connected to the output of said first generator means and to said cogeneration means, said field control means for regulating the energy passing to said cogeneration means from said first generator means.
References Cited (Backward Citations)
US2688704A
Cited
US3221172A
Cited
US3305762A
Cited
US3477013A
Cited
US3810116A
Cited
US4168459A
Cited
US4339779A
Cited
US4412170A
Cited
US4406950A
Cited
US4438340A
Cited
US4510756A
Cited
US4458710A
Cited
US4460834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |