Power generating and propelling system of vessel

• US 20040192123A1
• Filed: 02/27/2004
• Published: 09/30/2004
• Est. Priority Date: 09/11/2001
• Status: Active Grant

• Current Assignee: Yanmar Company Limited (Yanmar Holdings Co., Ltd.)
• Original Assignee: Yanmar Company Limited (Yanmar Holdings Co., Ltd.)
• Inventors: Mori, Hisanori, Hitachi, Junichi, Nakagaki, Mitsuhiro, Toda, Takayuki
• Granted Patent: US 7,147,523 B2
• Time in Patent Office: Days
• US Class Current: 440/6
• CPC Class Codes: B63H 20/00 Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
• CPC Class Codes: B63H 20/14 Transmission between propulsion power unit and propulsion element
• CPC Class Codes: B63H 20/28 Arrangements, apparatus and methods for handling cooling-water in outboard drives, e.g. cooling-water intakes cooling circuits for outboard marine engines F01P3/202
• CPC Class Codes: B63H 2021/202 of hybrid electric type
• CPC Class Codes: B63H 2021/205 the second power unit being of the internal combustion engine type, or the like, e.g. a Diesel engine
• CPC Class Codes: B63H 21/20 the vessels being powered by combinations of different types of propulsion units
• CPC Class Codes: B63H 23/14 with unidirectional drive or where reversal is immaterial
• CPC Class Codes: B63J 3/02 from propulsion power plant
• CPC Class Codes: F02B 73/00 Combinations of two or more engines, not otherwise provided for
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 70/5236 Renewable or hybrid-electric solutions

Abstract

An electric power generating equipment (10) is provided between an internal combustion engine (2) and a power transmission device (3), and an electric motor (9) is disposed at an area of the power transmission device. An output shaft (9a) of the electric motor (9) is disposed coaxially to any of rotary shafts of the power transmission device (3).

Claims

1. A power generating and propelling system of a vessel, comprising:

an internal combustion engine;

a power transmission device;

an electric power generating equipment provided between the internal combustion engine and the power transmission device; and

an electric motor disposed at an area of the power transmission device.

2. The power generating and propelling system of a vessel as set forth in claim 1, further comprising:

a rotary shaft of the electric motor disposed coaxially to any of rotary shafts of the power transmission device.

3. The power generating and propelling system of a vessel as set forth in claim 1, further comprising:

a rotary shaft of the electric motor disposed eccentrically and parallel to any of rotary shafts of the power transmission device.

4. The power generating and propelling system of a vessel as set forth in claim 2, wherein the rotary shaft of the electric motor transfers power to the power transmission device through a torque limiter.

5. The power generating and propelling system of a vessel as set forth in claim 2, wherein the rotary shaft of the electric motor transfers power to the power transmission device through an elastic joint.

6. The power generating and propelling system of a vessel as set forth in claim 2, wherein the rotary shaft of the electric motor transfers power to the power transmission device through a clutch.

7. The power generating and propelling system of a vessel as set forth in claim 1, wherein cooling water for cooling the internal combustion engine is passed near the electric motor.

8. The power generating and propelling system of a vessel as set forth in claim 7, wherein the cooling water is taken in from the outside of a propelling machine of the vessel.

9. The power generating and propelling system of a vessel as set forth in claim 7, wherein the cooling water is circulated in a closed circuit provided within a propelling machine of the vessel.

10. A power generating and propelling system of a vessel comprising:

an internal combustion engine having a substantially horizontal crankshaft;

a power transmission device having an input shaft, which is substantially coaxially connected to the crankshaft, and a substantially vertical transmission shaft;

a propeller shaft having a height different from the input shaft, the power transmission device transmitting rotational force of the input shaft to the propeller shaft;

an electric power generating equipment interposed between the internal combustion engine and the power transmission device; and

an auxiliary electric motor for driving the propeller shaft, the electric motor being driven by electric power generated from the generating equipment, wherein the electric motor has an output shaft substantially coaxially connected to the substantially vertical transmission shaft of the power transmission device.

11. The power generating and propelling system of a vessel as set forth in claim 10, wherein the propelling shaft is lower than the input shaft, and wherein the electric motor is disposed upright on a top of the power transmission device.

12. The power generating and propelling system of a vessel as set forth in claim 10, wherein the output shaft of the electric motor transfers power to the power transmission device through a torque limiter.

13. The power generating and propelling system of a vessel as set forth in claim 10, wherein the rotary shaft of the electric motor transfers power to the power transmission device through an elastic joint.

14. The power generating and propelling system of a vessel as set forth in claim 10, wherein the rotary shaft of the electric motor transfers power to the power transmission device through a clutch.

15. The power generating and propelling system of a vessel as set forth in claim 10, wherein cooling water for cooling the internal combustion engine is passed near the electric motor.

16. The power generating and propelling system of a vessel as set forth in claim 15, wherein the cooling water is taken in from the outside of a propelling machine of the vessel.

17. The power generating and propelling system of a vessel as set forth in claim 15, wherein the cooling water is circulated in a closed circuit provided within a propelling machine of the vessel.

23. The power generating and propelling system of a vessel as set forth in claim 11, wherein the output shaft of the electric motor transfers power to the power transmission device through a torque limiter.

24. The power generating and propelling system of a vessel as set forth in claim 11, wherein the rotary shaft of the electric motor transfers power to the power transmission device through an elastic joint.

25. The power generating and propelling system of a vessel as set forth in claim 11, wherein the rotary shaft of the electric motor transfers power to the power transmission device through a clutch.

18. A power generating and propelling system of a vessel comprising:

an internal combustion engine having a substantially horizontal crankshaft;

a power transmission device having an input shaft, which is substantially coaxially connected to the crankshaft, and a gear provided on the input shaft;

a propeller shaft having a height different from the input shaft, the power transmission device transmitting rotational force of the input shaft to the propeller shaft;

an electric power generating equipment interposed between the internal combustion engine and the power transmission device; and

an auxiliary electric motor for driving the propeller shaft, the electric motor being driven by electric power generated from the generating equipment, and the electric motor having an output shaft in parallel to the input shaft, wherein the power transmission device is provided with a common gear meshing with both of the gear on the input shaft and a gear on the output shaft of the electric motor so as to transmit rotation of the common gear to the propeller shaft.

19. The power generating and propelling system of a vessel as set forth in claim 18, wherein the propelling shaft is lower than the input shaft, and wherein the electric motor is attached onto the power transmission device above the propeller shaft so as to project substantially horizontally from the power transmission device.

20. The power generating and propelling system of a vessel as set forth in claim 18, wherein cooling water for cooling the internal combustion engine is passed near the electric motor.

21. The power generating and propelling system of a vessel as set forth in claim 20, wherein the cooling water is taken in from the outside of a propelling machine of the vessel.

22. The power generating and propelling system of a vessel as set forth in claim 20, wherein the cooling water is circulated in a closed circuit provided within a propelling machine of the vessel.