US4719756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharged marine diesel engine
Assignee: BBC BROWN BOVERI and Co Ltd
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Filing: 1986-04-11
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Granted: 1988-01-19
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Expires: 2006-04-11
Abstract
Abstract A supercharged marine diesel engine having at least one exhaust gas turbocharger and a separate power turbine is connected in parallel with the supercharger turbine. At least one auxiliary diesel engine drives a synchronous generator for supplying the shipboard grid with electrical energy. The power turbine is connected to a free shaft end of the auxiliary diesel/generator unit. By this arrangement, it is possible to reduce the load on the auxiliary diesel engine, which results in a substantial saving in fuel.
Inventors
- 👤 Adrian Streuli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:52
CPC Classifications
F; F02; F02B; F02B37/00; F02B73/00; B; B63; B63J; B63J3/00; F02B37/005; F02B63/00; F02B63/04; F02D; F02D29/00; F02D29/06; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
72 words
A marine power system comprising a main engine having an exhaust duct with parallel branches, an exhaust gas turbocharger in one of said branches and a separate power turbine in another of said branches, an auxiliary diesel engine, a synchronous generator, and a common shaft connected between said auxiliary diesel engine and said synchronous generator and to said power turbine for driving said generator for supplying electrical power for a shipboard grid.
Claim 2
Dependent Claim
72 words
A marine power system comprising a main engine having an exhaust duct with parallel branches, an exhaust gas turbocharger in one of said branches and a separate power turbine in another of said branches, an auxiliary diesel engine, a synchronous generator, and a common shaft connected between said auxiliary diesel engine and said synchronous generator and to said power turbine for driving said generator for supplying electrical power for a shipboard grid.
Claim 3
Dependent Claim
20 words
The marine power system according to claim 1 including a free wheel coupling between said shaft and said power turbine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |