GB2231545A - Combined outboard motor and rudder unit - Google Patents

Combined outboard motor and rudder unit Download PDF

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Publication number
GB2231545A
GB2231545A GB8908278A GB8908278A GB2231545A GB 2231545 A GB2231545 A GB 2231545A GB 8908278 A GB8908278 A GB 8908278A GB 8908278 A GB8908278 A GB 8908278A GB 2231545 A GB2231545 A GB 2231545A
Authority
GB
United Kingdom
Prior art keywords
unit
rudder
outboard motor
blade
combined
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB8908278A
Other versions
GB8908278D0 (en
Inventor
Ian Charles Howlett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8908278A priority Critical patent/GB2231545A/en
Publication of GB8908278D0 publication Critical patent/GB8908278D0/en
Publication of GB2231545A publication Critical patent/GB2231545A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/32—Housings
    • B63H20/34—Housings comprising stabilising fins, foils, anticavitation plates, splash plates, or rudders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for outboard marine engines

Abstract

A combined outboard motor and rudder unit for use on waterborne craft comprises a rudder blade 10 provided at its upper end with a power unit 13, said blade 10 housing at its bottom end a propeller shaft 14 connected to a propeller 15 and a drive transmission extending from the power unit 13 to the propeller shaft 14, mounting means 12 being provided for mounting the unit for pivoting movement about a vertical axis. <IMAGE>

Description

COMBINED OUTBOARD MOTOR AND RUDDER UNIT This invention relates to a combined outboard motor and rudder unit for use on waterborne craft,such as a sailing yacht.
According to the present invention there is provided a combined outboard motor and rudder unit for use on waterborne craft, comprising a rudder blade provided at its upper end with a power unit, said blade housing at its bottom end a propeller shaft connected to a propeller blade and a drive transmission from the power unit to the propellor shaft and means being provided for mounting the unit for pivoting movement about a vertical or substantially vertical axis.
The rudder blade may be provided with water inlet and exhaust conduits connected to a motor constituting the power unit.
The unit may also be provided with means for enabling the unit to be tilted about a horizontal axis.
Preferably the upper end of the unit is provided with a tiller.
The power unit preferably comprises an internal combustion engine and the rudder blade may include fuel storage means.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawing, in which the single figure is a diagrammatic side view of a combined outboard motor and rudder unit embodying the present invention.
The unit comprises a rudder blade 10 which in use is mounted at the stem of a waterborne vessel 11 by mountings 12 which enable the rudder blade 10 to pivot about a vertical or substantially vertical axis, a power unit 13 mounted on the upper end of the rudder blade 10 and a propeller shaft 14 which extends from the rear edge of the rudder blade 10 and on which is mounted a propeller 15.
A suitable drive transmission extends from the power unit 13 to the propeller shaft 14, said drive transmission consisting of shafts and gears or pulleys or sprockets and belts or chains located within the rudder blade 10.
The rudder blade 10 may include fuel storage means and can include water inlet and exhaust conduits connected to the power unit 13.
The blade 10 may be mounted for pivoting movement relative to the vessel 11 about a horizontal axis.
The power unit 13 may be readily detachable from the rudder blade 10 or it may be permanently fixed thereto. The rudder blade 10 is caused to pivot about the mountings 12 by a tiller 16.
The power unit 13 preferably comprises an internal combustion engine.
The combined outboard motor and rudder unit preferably provides auxiliary propulsion for a sailing vessel. It does not incurr the drag of a conventional outboard motor when the vessel is under sail propulsion. The propeller 15 may be of the self folding type in which the blades fold together when not rotated in order to reduce drag.
The blade 10 is preferably formed of fibre reinforced plastics material but it may be formed of metal.

Claims (7)

1. A combined outboard motor and rudder unit for use on waterborne craft1 comprising a rudder blade provided at its upper end with a power unit, said blade housing at its bottom end a propeller shaft connected to a propeller blade and a drive transmission extending from the power unit to the propeller shaft, and means being provided for mounting the unit for pivoting movement about a vertical or substantially vertical axis.
2. A combined outboard motor and rudder unit as claimed in Claim 1, in which the rudder blade is provided with water inlet and exhaust conduits connected to an internal combustion engine constituting said power unit.
3. A combined outboard motor and rudder unit as claimed in Claim 1 or Claim 2, in which the upper end of the unit is provided with a tiller.
4. A combined outboard motor and rudder unit as claimed in any preceding claim, provided with means for enabling the unit to be tilted about a horizontal axis.
5. A combined outboard motor and rudder unit as claimed in any preceding claim, in which the power unit comprises an internal combustion engine and the rudder blade includes fuel storage means.
6. A combined outboard motor and rudder unit as claimed in any preceding claim, in which said drive transmission comprises shafts and gears or pulleys or sprockets and belts or chains located within the rudder blade.
7. A combined outboard motor and rudder unit for use on waterborne craft, substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
GB8908278A 1989-04-12 1989-04-12 Combined outboard motor and rudder unit Withdrawn GB2231545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8908278A GB2231545A (en) 1989-04-12 1989-04-12 Combined outboard motor and rudder unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8908278A GB2231545A (en) 1989-04-12 1989-04-12 Combined outboard motor and rudder unit

Publications (2)

Publication Number Publication Date
GB8908278D0 GB8908278D0 (en) 1989-05-24
GB2231545A true GB2231545A (en) 1990-11-21

Family

ID=10654904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8908278A Withdrawn GB2231545A (en) 1989-04-12 1989-04-12 Combined outboard motor and rudder unit

Country Status (1)

Country Link
GB (1) GB2231545A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7172473B2 (en) * 2004-03-17 2007-02-06 Mehnert Timothy W Rudder indicator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US600874A (en) * 1898-03-22 jones
US1511867A (en) * 1920-09-13 1924-10-14 Asbury Dorsey Frost Marine propulsion apparatus
US3703642A (en) * 1971-10-28 1972-11-21 Rodolfo Rodriguez Balaguer Outboard motor unit
GB1498229A (en) * 1974-10-02 1978-01-18 Volvo Penta Ab Outboard motor drive shaft housings
US4290760A (en) * 1978-08-08 1981-09-22 Lindblad Karl Erick Maneuvering device for sailing boats
US4352666A (en) * 1980-08-11 1982-10-05 Outboard Marine Corporation Marine propulsion device with trim sensitive movable trim tab
US4563155A (en) * 1980-12-01 1986-01-07 Outboard Marine Corporation Steering post mounted propulsion assembly
GB2170770A (en) * 1985-02-11 1986-08-13 Outboard Marine Corp Marine installation including fuel/oil mixing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US600874A (en) * 1898-03-22 jones
US1511867A (en) * 1920-09-13 1924-10-14 Asbury Dorsey Frost Marine propulsion apparatus
US3703642A (en) * 1971-10-28 1972-11-21 Rodolfo Rodriguez Balaguer Outboard motor unit
GB1498229A (en) * 1974-10-02 1978-01-18 Volvo Penta Ab Outboard motor drive shaft housings
US4290760A (en) * 1978-08-08 1981-09-22 Lindblad Karl Erick Maneuvering device for sailing boats
US4352666A (en) * 1980-08-11 1982-10-05 Outboard Marine Corporation Marine propulsion device with trim sensitive movable trim tab
US4563155A (en) * 1980-12-01 1986-01-07 Outboard Marine Corporation Steering post mounted propulsion assembly
GB2170770A (en) * 1985-02-11 1986-08-13 Outboard Marine Corp Marine installation including fuel/oil mixing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7172473B2 (en) * 2004-03-17 2007-02-06 Mehnert Timothy W Rudder indicator

Also Published As

Publication number Publication date
GB8908278D0 (en) 1989-05-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)