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WO1998015454B1 - Outboard motor with improved jet propulsion unit - Google Patents

Outboard motor with improved jet propulsion unit

Info

Publication number
WO1998015454B1
WO1998015454B1 PCT/US1997/018562 US9718562W WO9815454B1 WO 1998015454 B1 WO1998015454 B1 WO 1998015454B1 US 9718562 W US9718562 W US 9718562W WO 9815454 B1 WO9815454 B1 WO 9815454B1
Authority
WO
WIPO (PCT)
Prior art keywords
water
tunnel
backing member
screen
impeller
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.)
Ceased
Application number
PCT/US1997/018562
Other languages
French (fr)
Other versions
WO1998015454A1 (en
Filing date
Publication date
Priority claimed from US08/728,602 external-priority patent/US5752863A/en
Application filed filed Critical
Priority to JP51780098A priority Critical patent/JP2001509104A/en
Priority to AU48209/97A priority patent/AU4820997A/en
Publication of WO1998015454A1 publication Critical patent/WO1998015454A1/en
Publication of WO1998015454B1 publication Critical patent/WO1998015454B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Abstract

Disclosed herein is a jet propulsion unit (14) comprising a housing (41) including a wall (43) defining a water tunnel having therein a water outlet port (71), and a recess (81) located in the wall (43) defining the tunnel and in surrounding relation to the port (71) and a screen (83) located in the recess (81) and extending across the port (71) and in flush relation to the wall (43) defining the tunnel.

Claims

AMENDED CLAIMS[received by the International Bureau on 23 March 1998 (23.03.98); original claims 1-12 replaced by new claims 1-7 (2 pages)]
1. An outboard motor having a jet propulsion unit comprising in combination: a housing forming a water tunnel and having an upstream inlet and a downstream outlet, said inlet being in communication with ambient water from about a boat to which the outboard motor is mounted, said water tunnel for passing said ambient water from said inlet to said outlet; an impeller mounted within said tunnel between said inlet and said outlet, said impeller for forcing said ambient water through said tunnel; an engine connected to said housing, said engine having a water cooling jacket; drive elements connected to said engine and said impeller for transmitting rotational motion from said engine to said impeller; a conduit extending from said water tunnel to said water cooling jacket for passing ambient water from said tunnel to said water jacket; a port in said water tunnel at the terminus of said conduit downstream of said impeller and upstream of said outlet where said ambient water is at an elevated pressure; a screen removably positioned at said port to prevent debris from entering said conduit; and a backing member connected to said screen for supporting and strengthening said screen.
2. An apparatus as claimed in claim 1 including: a recess located in surrounding relation to said port.
3. An apparatus as claimed in claim 1 wherein: said backing member is comprised of plastic. 14
4. An apparatus as claimed in claim 1 wherein: said backing member assists in retaining the shape of said screen.
5. An apparatus as claimed in claim 1 wherein: said backing member is open to the passage of water.
6. An apparatus as claimed in claim 1 wherein: said backing member is located downstream of said screen.
7. An apparatus as claimed in claim 1 wherein: said backing member is open to the passage of water; said backing member assists in retaining the shape of said screen; and said backing member is comprised of plastic.
PCT/US1997/018562 1996-10-10 1997-10-10 Outboard motor with improved jet propulsion unit Ceased WO1998015454A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP51780098A JP2001509104A (en) 1996-10-10 1997-10-10 Outboard with improved jet propulsion unit
AU48209/97A AU4820997A (en) 1996-10-10 1997-10-10 Outboard motor with improved jet propulsion unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/728,602 1996-10-10
US08/728,602 US5752863A (en) 1996-10-10 1996-10-10 Outboard motor with improved jet propulsion unit

Publications (2)

Publication Number Publication Date
WO1998015454A1 WO1998015454A1 (en) 1998-04-16
WO1998015454B1 true WO1998015454B1 (en) 1998-05-28

Family

ID=24927519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/018562 Ceased WO1998015454A1 (en) 1996-10-10 1997-10-10 Outboard motor with improved jet propulsion unit

Country Status (4)

Country Link
US (2) US5752863A (en)
JP (1) JP2001509104A (en)
AU (1) AU4820997A (en)
WO (1) WO1998015454A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3577534B2 (en) * 1996-10-14 2004-10-13 ヤマハ発動機株式会社 Engine cooling system for hydroplane
CA2295806C (en) * 1998-05-28 2003-11-25 Ishigaki Company Limited Water jet propulsion type outboard motor
US6244913B1 (en) * 1998-06-11 2001-06-12 Yamaha Hatsudoki Kabushiki Kaisha Propulsion unit assembly for personal watercraft
JP4229249B2 (en) * 1999-03-30 2009-02-25 本田技研工業株式会社 2-cycle engine and ship equipped with it
WO2001012498A2 (en) 1999-08-18 2001-02-22 William Lawson Outboard jet drive boat
AU2002232208B2 (en) * 2001-02-21 2006-04-13 Ishigaki Company Limited Water jet propulsion outboard engine
FR2823177B1 (en) * 2001-04-10 2004-01-30 Technicatome REFRIGERATION SYSTEM FOR THE UNDERWATER SHIP PROPELLER
JP4039826B2 (en) * 2001-07-13 2008-01-30 本田技研工業株式会社 Small planing boat equipped with an internal combustion engine with a supercharger
JP3946020B2 (en) * 2001-09-18 2007-07-18 本田技研工業株式会社 Water jet propulsion machine
JP3948981B2 (en) * 2002-02-22 2007-07-25 川崎重工業株式会社 Jet propulsion boat
US6840829B2 (en) * 2002-08-30 2005-01-11 Kawasaki Jukogyo Kabushiki Kaisha Jet-propulsion watercraft
US6783412B1 (en) 2003-04-09 2004-08-31 Brunswick Corporation Cooling water distribution system for a marine propulsion device
US7220154B2 (en) * 2003-11-13 2007-05-22 Sword Marine Technology, Inc. Outboard jet drive marine propulsion system
AU2005247947A1 (en) * 2004-05-25 2005-12-08 Sword Marine Technology, Inc. Outboard jet drive marine propulsion system and control lever therefor
JP2006264608A (en) * 2005-03-25 2006-10-05 Honda Motor Co Ltd Ship propulsion device
HRP20120430B1 (en) * 2012-05-18 2018-06-29 Marko Zelić Rotate tubular nozzle with movable barrier for propulsion with discontinuos high pressure gas
FR3013030A1 (en) * 2013-11-08 2015-05-15 Personal Water Craft Product FLUID OUTPUT INTERFACE FOR MOTOR VEHICLE, ENGINE NAUTICAL VEHICLE AND PROPULSION SYSTEM THEREOF
US10293910B1 (en) * 2017-05-12 2019-05-21 Brunswick Corporation Cooling systems and strainers for cooling systems for marine engines
US20230365243A1 (en) * 2022-05-13 2023-11-16 Chad Studebaker Split Cooling System for Marine Jet engine

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA664183A (en) * 1963-06-04 Earl O. Johnson Pump attachment for outboard motors
US2466525A (en) * 1945-08-08 1949-04-05 Wilson John Harrison Cooling device for power plants of boats
US3233573A (en) * 1960-02-08 1966-02-08 Charles W F Hamilton Hydraulic jet propulsion apparatus for water-borne craft
US3035409A (en) * 1960-07-07 1962-05-22 Durward L Pifer Marine propulsion mechanism
US3105353A (en) * 1962-01-03 1963-10-01 Eugene K Schulz Propulsion unit for boats
US3249083A (en) * 1963-12-16 1966-05-03 Outboard Marine Corp Marine jet propulsion
US3613630A (en) * 1965-06-07 1971-10-19 Jacuzzi Bros Inc Marine jet pumpout and fire-fighting equipment
US3867105A (en) * 1973-08-08 1975-02-18 Universal Oil Prod Co Damped support screen for catalytic converter
US4258642A (en) * 1979-06-07 1981-03-31 Outboard Marine Corporation Marine propulsion device including an improved shift control rod
US4423696A (en) * 1981-04-22 1984-01-03 Aker Charles M Improved boat thruster system including swirl reducing vanes
US4437841A (en) * 1981-11-04 1984-03-20 Stallman Richard C Outboard jet drive steering mechanism
US4652244A (en) * 1985-04-08 1987-03-24 Donald Drury Propulsion unit for water craft
US4636175A (en) * 1985-11-07 1987-01-13 Brunswick Corporation Water inlet for outboard propulsion unit
JPH0631070B2 (en) * 1986-04-01 1994-04-27 三信工業株式会社 Bilge water discharge device in water jet propulsion device
US4699597A (en) * 1986-04-29 1987-10-13 Oja Ray V Pump attachment for outboard motors
US4752257A (en) * 1986-12-18 1988-06-21 Brunswick Corporation Cooling water intake with increased flow
US4767366A (en) * 1987-04-06 1988-08-30 Brunswick Corporation Water ram scoop for cooling water intake
US4832639A (en) * 1988-02-25 1989-05-23 Brunswick Corporation Marine drive with air trap in auxiliary water inlet
US4861293A (en) * 1988-04-20 1989-08-29 Outboard Marine Corporation Marine propulsion device with screened water inlet
US4832640A (en) * 1988-07-05 1989-05-23 Brunswick Corporation Marine gearcase water inlet divider
US4954109A (en) * 1989-07-20 1990-09-04 Brunswick Corporation Water pickup insert
JPH0378516A (en) * 1989-08-21 1991-04-03 Sanshin Ind Co Ltd Exhaust muffling device for ship propulsion machinery
US5098322A (en) * 1990-07-23 1992-03-24 Outboard Marine Corporation Marine propulsion device with self assembling coolant water inlet screens
US5215487A (en) * 1992-01-21 1993-06-01 Outboard Marine Corporation Marine propulsion device water inlet screen
JPH05286489A (en) * 1992-04-14 1993-11-02 Sanshin Ind Co Ltd Water jet propulsion machine
US5472359A (en) * 1994-10-05 1995-12-05 Marine Power, Inc. Enclosed shaft system for marine jet propulsion drives

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