IT1225663B - Propulsion system for small and medium sized boats - Google Patents
Propulsion system for small and medium sized boatsInfo
- Publication number
- IT1225663B IT1225663B IT8812517A IT1251788A IT1225663B IT 1225663 B IT1225663 B IT 1225663B IT 8812517 A IT8812517 A IT 8812517A IT 1251788 A IT1251788 A IT 1251788A IT 1225663 B IT1225663 B IT 1225663B
- Authority
- IT
- Italy
- Prior art keywords
- small
- propulsion system
- medium sized
- electric motor
- sized boats
- Prior art date
Links
- 230000003068 static effect Effects 0.000 abstract 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention concerns a propulsion system for small and medium sized boats, of the type that provides a bank of storage batteries (10) for an electric motor (40) suitably connected to a propulsion screw (50). According to the invention, the said electric motor (40) is an asynchronous motor of the squirrel-cage type and, between the said electric motor (40) and the said bank of storage batteries (10), a static converter (30) is inserted, which is capable of generating a mainly sinusoidal voltage for the said asynchronous motor, with variable voltage and frequency. According to the invention the ratio between the said voltage and said frequency is maintained constant (figure 5).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8812517A IT1225663B (en) | 1988-07-11 | 1988-07-11 | Propulsion system for small and medium sized boats |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8812517A IT1225663B (en) | 1988-07-11 | 1988-07-11 | Propulsion system for small and medium sized boats |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8812517A0 IT8812517A0 (en) | 1988-07-11 |
IT1225663B true IT1225663B (en) | 1990-11-22 |
Family
ID=11141100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8812517A IT1225663B (en) | 1988-07-11 | 1988-07-11 | Propulsion system for small and medium sized boats |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1225663B (en) |
-
1988
- 1988-07-11 IT IT8812517A patent/IT1225663B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8812517A0 (en) | 1988-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950731 |