WO1998015454B1 - Outboard motor with improved jet propulsion unit - Google Patents
Outboard motor with improved jet propulsion unitInfo
- 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
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
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.
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)
| 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)
| 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 |
-
1996
- 1996-10-10 US US08/728,602 patent/US5752863A/en not_active Expired - Fee Related
-
1997
- 1997-10-10 WO PCT/US1997/018562 patent/WO1998015454A1/en not_active Ceased
- 1997-10-10 JP JP51780098A patent/JP2001509104A/en active Pending
- 1997-10-10 AU AU48209/97A patent/AU4820997A/en not_active Abandoned
-
1998
- 1998-02-13 US US09/023,180 patent/US6036556A/en not_active Expired - Fee Related
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