WO2002000499A1 - System for propulsion of boats by means of an auxiliary engine operating on the shaft of the main engine - Google Patents

System for propulsion of boats by means of an auxiliary engine operating on the shaft of the main engine Download PDF

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Publication number
WO2002000499A1
WO2002000499A1 PCT/IT2000/000385 IT0000385W WO0200499A1 WO 2002000499 A1 WO2002000499 A1 WO 2002000499A1 IT 0000385 W IT0000385 W IT 0000385W WO 0200499 A1 WO0200499 A1 WO 0200499A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
engine
propulsion
main
auxiliary
Prior art date
Application number
PCT/IT2000/000385
Other languages
French (fr)
Inventor
Enrico Ravera
Daniele Liporace
Original Assignee
Enrico Ravera
Daniele Liporace
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enrico Ravera, Daniele Liporace filed Critical Enrico Ravera
Priority to AU79450/00A priority Critical patent/AU7945000A/en
Publication of WO2002000499A1 publication Critical patent/WO2002000499A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/26—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/20—Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units

Definitions

  • the invention concerns the propulsion of boats. It is a well known fact that auxiliary engines for boats operate with their own transmission systems-between engine shaft and propeller shaft, though -this obviously involves considerable drawbacks for reasons of cost, bulk and manoeuverability.
  • Subject of the invention is a system for propulsion of boats having one or else two marine combustion engines and tumbler gears.
  • the system comprises an auxiliary engine kinematically connected to the shaft of one or of the two engines connected to the propeller shaft.
  • the boat can be driven even if there is failure of one engine or of the tumbler gears, or if the boat is used for trawl-line fishing that requires a speed which may even be less than two knots.
  • Kinematic connection between the shaft of the auxiliary engine and that of a main engine is made by means of a hydraulic motor mech- 0 anically connected to the shaft of the main engine and hydraulically, , . by. two-way tubes, to a hydraulic pump kinematically connected to the shaft of the auxiliary engine. .. '
  • Mechanical connection between the shaft of the hydraulic motor and " that of the main engine is made by pulleys fitted onto the shafts. and connected by continuous belts. - . .
  • Hydraulic connection between the hydraulic motor and the hydraulic pump is made by two-way tubes.
  • the shaft of the auxiliary engine is also kinema-. i. ⁇ tically connected to a power take-off point on ttie main engine. 0
  • This kinematic connection between the shaft of the auxiliary engine a ⁇ d the power take-off on the main engine is made. by. pulleys fitted respectively onto the shaft of the auxiliary engine and onto that of the power take-off on a main engine and connected by continuous belts. 5
  • the system offers evident advantages.
  • auxiliary engine brought into use if there is failure of the main engine or tumbler gears, direct connection can be made with the propeller shaft fitted to the engine shaft, providing considerable benefits as regards costs, weight and manoeuverability of the 0 boat, there being no need for a propeller shaft for the auxiliary engine, and no interference with the characteristics of dynamic thrust generated by the shaft of the damaged engine.
  • the shaft of the damaged engine can be rotated so that the boat is kept perfectly under control.
  • the auxiliary engine permits propulsion at low speed, replacing the trolling valve but also avoiding the frequent risk of failure of the tumbler gear which can happen if the easily forgotten trolling valve is left in the 'on' position.
  • the auxiliary engine can be installed anywhere in the boat in view of its versatile connection by means of tubes. Characteristics and purposes of the invention will be made still clearer by the following examples of its execution illustrated by diagrammatically drawn figures.
  • Fig. 1 System of propulsion for boats, side view.
  • FIG. 2 As in Fig. 1 , perspective view from above.
  • Fig. 3 As above showing the power take-off.
  • Figure 1 shows the system of propulsion 10 with main marine Diesel engine 11 , propeller shaft 12 and propeller 13.
  • the system comprises the auxiliary marine Diesel engine 30 with its shaft 31 onto which the hydraulic pump 35 is fitted.
  • Said pump 35 is connected to the hydraulic motor 20 on support 28 by means of the tubes 40, 41.
  • the pulley 22 with races 23 fits onto the shaft 21 of said hydraulic motor 20.
  • the pulley 24 with races 25 fits onto the propeller shaft 12 of the main engine 11.
  • Said pulleys 22, 24 are joined by continuous belts 27.
  • FIG. 3 illustrates a complementary addition 45 to the system 10 consisting in connection of the shaft 31 of the auxiliary engine 30 to the power take-off 15 on the main engine 11 by means of the pulley 50, with races 51 , fitted onto said power take-off 15, and of the pulley 55, with races 56, fitted onto the shaft 31.
  • the two pulleys 50 and 55 are connected by continuous belts 57.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Transmission Devices (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

System (10) for the propulsion of boats carrying one or two marine internal combustion engines (11) and tumbler gears comprising an auxiliary engine (30) kinematically connected to the propeller shaft (12) connected to the shaft of one or of the two main engines (11) so that propulsion can be maintained both in the case of failure of one main engine (11) or of the tumbler gears, as well as in the case of fishing with a trawl-line when the boat must proceed at low speed.

Description

System for propulsion of boats by means of an auxiliary engine operating on the shaft of the main engine
The invention concerns the propulsion of boats. It is a well known fact that auxiliary engines for boats operate with their own transmission systems-between engine shaft and propeller shaft, though -this obviously involves considerable drawbacks for reasons of cost, bulk and manoeuverability.
It is also known that deep-sea fishing with a trawl-line means moving the boat at a speed of usually less than two knots. To lower speed, use is made at present of trolling valve mechanisms that permit a tumbler gear to slide so reducing the oil rate .
If during navigation the boat accelerates with the trolling valve left in the 'on' position, the tumbler gear will be damaged.
If failure occurs in the main engine the boat will obviously get out of control. Subject of the invention is a system for propulsion of boats having one or else two marine combustion engines and tumbler gears. The system comprises an auxiliary engine kinematically connected to the shaft of one or of the two engines connected to the propeller shaft.
In this way the boat can be driven even if there is failure of one engine or of the tumbler gears, or if the boat is used for trawl-line fishing that requires a speed which may even be less than two knots.
Kinematic connection between the shaft of the auxiliary engine and that of a main engine is made by means of a hydraulic motor mech- 0 anically connected to the shaft of the main engine and hydraulically, , . by. two-way tubes, to a hydraulic pump kinematically connected to the shaft of the auxiliary engine. .. ' Mechanical connection between the shaft of the hydraulic motor and" that of the main engine is made by pulleys fitted onto the shafts. and connected by continuous belts. - . .
Hydraulic connection between the hydraulic motor and the hydraulic pump is made by two-way tubes.
• In one execution the shaft of the auxiliary engine is also kinema-. i. ■ tically connected to a power take-off point on ttie main engine. 0 This kinematic connection between the shaft of the auxiliary engine aπd the power take-off on the main engine is made. by. pulleys fitted respectively onto the shaft of the auxiliary engine and onto that of the power take-off on a main engine and connected by continuous belts. 5 The system offers evident advantages.
By means of the auxiliary engine, brought into use if there is failure of the main engine or tumbler gears, direct connection can be made with the propeller shaft fitted to the engine shaft, providing considerable benefits as regards costs, weight and manoeuverability of the 0 boat, there being no need for a propeller shaft for the auxiliary engine, and no interference with the characteristics of dynamic thrust generated by the shaft of the damaged engine. Even in the case of boats with two engines, by means of the auxiliary engine, the shaft of the damaged engine can be rotated so that the boat is kept perfectly under control.
In the case of deep-sea trawl-line fishing the auxiliary engine permits propulsion at low speed, replacing the trolling valve but also avoiding the frequent risk of failure of the tumbler gear which can happen if the easily forgotten trolling valve is left in the 'on' position.
The auxiliary engine can be installed anywhere in the boat in view of its versatile connection by means of tubes. Characteristics and purposes of the invention will be made still clearer by the following examples of its execution illustrated by diagrammatically drawn figures.
Fig. 1 System of propulsion for boats, side view.
Fig. 2 As in Fig. 1 , perspective view from above. Fig. 3 As above showing the power take-off.
Figure 1 shows the system of propulsion 10 with main marine Diesel engine 11 , propeller shaft 12 and propeller 13.
The propeller shaft 12 next to the propeller, rotates in the support
14. The system comprises the auxiliary marine Diesel engine 30 with its shaft 31 onto which the hydraulic pump 35 is fitted.
Said pump 35 is connected to the hydraulic motor 20 on support 28 by means of the tubes 40, 41.
The pulley 22 with races 23 fits onto the shaft 21 of said hydraulic motor 20.
The pulley 24 with races 25 fits onto the propeller shaft 12 of the main engine 11.
Said pulleys 22, 24 are joined by continuous belts 27.
If the main engine 11 fails, the propeller shaft 12, fixed to the shaft of said engine 11 , can be kept rotating by the hydraulic motor 20 operated by liquid under pressure in the two-way tubes 40 and 41 from the hydraulic pump 35 driven by the auxiliary engine 30. Figure 3 illustrates a complementary addition 45 to the system 10 consisting in connection of the shaft 31 of the auxiliary engine 30 to the power take-off 15 on the main engine 11 by means of the pulley 50, with races 51 , fitted onto said power take-off 15, and of the pulley 55, with races 56, fitted onto the shaft 31. The two pulleys 50 and 55 are connected by continuous belts 57.

Claims

1. System (10, 45) for the propulsion of boats carrying one (11) or two marine internal combustion engines and tumbler gears, characterized in that it comprises an auxiliary engine (30) with kinematic connection (20-22, 24, 27, 31 , 35, 40, 41) to the shaft (12) of one (11 ) or of the two main engines connected to the propeller shaft (12) so that propulsion can be maintained both in the case of failure of one engine (11 ) or of the tumbler gears, as well as if the boat is fishing with a trawl-line for which low speed, even less than two knots, is necessary.
2. System (10) as in claim 1 , characterized in that the kinematic connection (20-22, 24, 27, 31 , 35, 40, 41 ) between the shaft (31 ) of the auxiliary engine (30) and the shaft (12) of one main engine (11 ) is obtained through a hydraulic motor (20) by mechanical connection (21 , 22, 24, 27) to the shaft (12) of the main engine (11 ) fixed to the propeller shaft (12) and hydraulic connection to a hydrauliσpump (35) kinematically connected to the shaft (31 ) of the auxiliary engine (30).
3. System (10) as in claim 2, characterized in that mechanical connection between the shaft (21 ) of the hydraulic motor (20) and the shaft of the main engine (11 ) connected to the propeller shaft (12) is obtained by means of pulleys (22, 24) fitted onto the shaft (21) of the hydraulic motor (20) and onto the propeller shaft (12), said pulleys (22, 24) being connected by continuous belts (27).
4. System (10) as in claim 2, characterized in that hydraulic connection between the hydraulic motor (20) and the hydraulic pump (35) is made by two-way tubes (40, 41 ).
5. System (45) as in claim 1 , characterized in that the shaft (31 ) of the auxiliary engine (30) is also kinematically connected (50, 55, 57) to a power take-off point (15) on a main engine (11 ).
6. System (45) as in claim 5, characterized in that the kinematic connection (50, 51 , 55-57) between the shaft (31 ) of the auxiliary engine (30) and the power take-off (15) on the main engine (11 ) is made through pulleys (50, 55) respectivelly fitted onto the shaft (31 ) of the auxiliary engine (30) and on the shaft (15) of the power take-off on the main engine (11 ) and connected by continuous belts (57).
PCT/IT2000/000385 2000-06-28 2000-09-29 System for propulsion of boats by means of an auxiliary engine operating on the shaft of the main engine WO2002000499A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU79450/00A AU7945000A (en) 2000-06-28 2000-09-29 System for propulsion of boats by means of an auxiliary engine operating on the shaft of the main engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2000A001452 2000-06-28
IT2000MI001452A IT1318060B1 (en) 2000-06-28 2000-06-28 SYSTEM FOR THE PROPULSION OF BOATS THROUGH ENGINE AUXILIARY ACTING ON THE MAIN ENGINE SHAFT.

Publications (1)

Publication Number Publication Date
WO2002000499A1 true WO2002000499A1 (en) 2002-01-03

Family

ID=11445360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2000/000385 WO2002000499A1 (en) 2000-06-28 2000-09-29 System for propulsion of boats by means of an auxiliary engine operating on the shaft of the main engine

Country Status (3)

Country Link
AU (1) AU7945000A (en)
IT (1) IT1318060B1 (en)
WO (1) WO2002000499A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004105962A (en) * 2002-09-18 2004-04-08 Corning Inc Apparatus and method for operating microreactor at high pressure
WO2007073980A1 (en) * 2005-12-27 2007-07-05 Siemens Aktiengesellschaft Method for operating an energy system of a ship and energy system suitable therefor
RU2620623C2 (en) * 2015-10-12 2017-05-29 Лев Анатольевич Новиков Method of cleaning and disposal of working gases and device for its implementation
RU215405U1 (en) * 2022-06-03 2022-12-12 Богдан Васильевич Гавкалюк Dual-Mode Automobile Exhaust Treatment Device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938637A (en) * 1974-03-19 1976-02-17 Kabushiki Kaisha Daikin Seisakusho Control system for forward-reverse clutches and low pressure supply line
DE2454754A1 (en) * 1974-11-19 1976-05-20 Friedrich Wilhelm Ing G Bracht Hydrostatic transmission for ships - has thrust of propeller borne axially by swash plate of piston drive
US4273543A (en) * 1979-10-01 1981-06-16 Engine Technology, Inc. Emergency marine propulsion using existing propeller shaft
DE3302546A1 (en) * 1983-01-26 1984-08-02 Mannesmann Rexroth GmbH, 8770 Lohr Drive system
EP0151946A1 (en) * 1984-01-23 1985-08-21 Schweizerische Lokomotiv- und Maschinenfabrik Variable ratio transmission to drive a generator by a diesel engine
US5528978A (en) * 1992-02-27 1996-06-25 Linde Aktiengellschaft Hydromechanical drive assembly
US5538449A (en) * 1993-06-11 1996-07-23 Richard; Andre L. Boat trolling valve safety device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938637A (en) * 1974-03-19 1976-02-17 Kabushiki Kaisha Daikin Seisakusho Control system for forward-reverse clutches and low pressure supply line
DE2454754A1 (en) * 1974-11-19 1976-05-20 Friedrich Wilhelm Ing G Bracht Hydrostatic transmission for ships - has thrust of propeller borne axially by swash plate of piston drive
US4273543A (en) * 1979-10-01 1981-06-16 Engine Technology, Inc. Emergency marine propulsion using existing propeller shaft
DE3302546A1 (en) * 1983-01-26 1984-08-02 Mannesmann Rexroth GmbH, 8770 Lohr Drive system
EP0151946A1 (en) * 1984-01-23 1985-08-21 Schweizerische Lokomotiv- und Maschinenfabrik Variable ratio transmission to drive a generator by a diesel engine
US5528978A (en) * 1992-02-27 1996-06-25 Linde Aktiengellschaft Hydromechanical drive assembly
US5538449A (en) * 1993-06-11 1996-07-23 Richard; Andre L. Boat trolling valve safety device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004105962A (en) * 2002-09-18 2004-04-08 Corning Inc Apparatus and method for operating microreactor at high pressure
WO2007073980A1 (en) * 2005-12-27 2007-07-05 Siemens Aktiengesellschaft Method for operating an energy system of a ship and energy system suitable therefor
RU2620623C2 (en) * 2015-10-12 2017-05-29 Лев Анатольевич Новиков Method of cleaning and disposal of working gases and device for its implementation
RU215405U1 (en) * 2022-06-03 2022-12-12 Богдан Васильевич Гавкалюк Dual-Mode Automobile Exhaust Treatment Device

Also Published As

Publication number Publication date
ITMI20001452A0 (en) 2000-06-28
AU7945000A (en) 2002-01-08
IT1318060B1 (en) 2003-07-21
ITMI20001452A1 (en) 2001-12-28

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