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US2259153A - Water pump - Google Patents

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Publication number
US2259153A
US2259153A US321473A US32147340A US2259153A US 2259153 A US2259153 A US 2259153A US 321473 A US321473 A US 321473A US 32147340 A US32147340 A US 32147340A US 2259153 A US2259153 A US 2259153A
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US
United States
Prior art keywords
shaft
housing
gear
chamber
pump
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.)
Expired - Lifetime
Application number
US321473A
Inventor
Warren C Conover
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.)
Outboard Marine and Manufacturing Co
Original Assignee
Outboard Marine and Manufacturing Co
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
Priority claimed from US212078A external-priority patent/US2224900A/en
Application filed by Outboard Marine and Manufacturing Co filed Critical Outboard Marine and Manufacturing Co
Priority to US321473A priority Critical patent/US2259153A/en
Application granted granted Critical
Publication of US2259153A publication Critical patent/US2259153A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/12—Exhaust or silencing apparatus characterised by constructional features specially adapted for submerged exhausting
    • 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
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/10—Means enabling trim or tilt, or lifting of the propulsion element when an obstruction is hit; Control of trim or tilt
    • 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
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/12—Means enabling steering
    • 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
    • B63H20/24—Arrangements, apparatus and methods for handling exhaust gas in outboard drives, e.g. exhaust gas outlets
    • B63H20/245—Exhaust gas outlets
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/004—Exhaust or silencing apparatus characterised by constructional features specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • F01N3/046—Exhaust manifolds with cooling jacket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F01P3/202—Cooling circuits not specific to a single part of engine or machine for outboard marine engines
    • 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 marine engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
    • F01N2590/021—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications for outboard engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the primary object of my invention is to provide an improved outboard motor waterpump pas- Furtherobjects of my inventionare to provide a novel organization of lower unit elements including the motor drive shaft, the propeller shaft, and the driving connection therebetween, whereby to simplify the construction thereof with a resultant reduction* in the cost of manufacture thereof.
  • Fig. 1 is a fore and aft section of an outboard motor lower unit having my inventive features incorporated therein.
  • Fig. 2 is a side elevation of the lower unit shown in Fig. 1.
  • the lower unit casting H0 is provided at its top with a split sleeve clamp H
  • a socket H4 and a partition wall H5 directing the exhaust gases rearwardly into the discharge pipe H5 which is bolted at the rear of casting H0 and constitutes a rearward extension thereof, the anti-cavtation plate H8 being continuous across the outside of both castings.
  • the discharge mouth H1 for the exhaust gases is located below plate H8 and at the rear of the path of the propeller
  • the inner casing 32 constituting the shaft housing extends clear across the exhaust chamber H3 and seats in the socket H4 where packing is provided at
  • the drive shaft has a bearing in a bushing
  • 30 which provides a closure for the rear side of the gear chamberand also provides a pump casing
  • the propeller shaft "I ⁇ 35" has its forward bearing within the driven gear 26 and its 'rearward bearing in a bushing provided in casting
  • 36 is wound about the portion of the shaft intervening between the gear and the cam and provides a-resiliently flexible driving connection calculated to absorb some of the shock to which the" ⁇ propeller may vbe subject.
  • 38 passing through the shaft is engaged in a notch in the hub'of propeller
  • the pump comprises a cam follower
  • the wat-er inlet provided by the cage communicates through the cylinder head
  • water is forced through the outlet valve
  • a pump mounted in said closure for unitary a-pplication and removal vwith said closure, a propeller shaft having one end supported in said housing and its other end supported in said closure, and a cam 'carried by said shaft Within said cavity in -operative actuating connection with said pump, said pump being located in the plane Aof said cam'on a radius of said shaft.
  • ⁇ .fsgrnr an outboard iowerut, the combination with a housing having an exhaust chamber and a gear chamber, both opening rearwardly, of a bearing between said chambers, a drive shaft in said bearing, a driving pinion carried by the drive shaft, -a driven gear provided with a mounting in the gear chamber, a'propeller shaft extending rearwardly from said gear, a closure for the gear chamber within which said propeller shaft is mounted, a lpump cam mounted on the propeller shaft and provided with means securing it to the shaft for rotation therewith, a spring providing ayieldable driving connection fromthe driven gear to the cam, a displacement pump comprising a cylinder formed in said closure and a piston reciprocable therein and bearing on said cam, a supply -pipe leading from said cylinder through said exhaust chamber, and a discharge pipe connected with said housing about said exhaust chamber to receive exhaust from said chamber for under water discharge and .to enclose said supply pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Description

Oct. 14, 1941. w. c. c oNovER 2,259,153
WATER PUMP Original Filed June 6, 1958 ATTORNEYS.
`together'with a novel organization of water `sages whichare associated therewith.
Patented Oct. 14, 1941 Warren C. Conover, Waukegan, Ill., assignor to utboa`rd,'Marin`e and Manufacturing Coin pany, Waukegan, Ill., a corporation of` Dela- Wan? Original application June 6, 1938, Serial No.
212,078. Divided and this application February 4 29,1940, Serial No.321,473
e Claims. (C1. y11aru This invention relates to improvements in outboard motor water pumps. The present application is a division of my copending application Serial No.'212,078 entitled Outboard motors, led June 6, 1938, now Patent No. 2,224,900.
The primary object of my invention is to provide an improved outboard motor waterpump pas- Furtherobjects of my inventionare to provide a novel organization of lower unit elements including the motor drive shaft, the propeller shaft, and the driving connection therebetween, whereby to simplify the construction thereof with a resultant reduction* in the cost of manufacture thereof.
Other objects of my invention will become apparent to those skilled in the'art uponl an examination of the drawing and the following vspeci- `Iication and appended claims.
In the drawing:
Fig. 1 is a fore and aft section of an outboard motor lower unit having my inventive features incorporated therein.
Fig. 2 is a side elevation of the lower unit shown in Fig. 1.
Like parts are identified by the same reference characters throughout the several views.
The lower unit casting H0 is provided at its top with a split sleeve clamp H| tightened by means of bolt H2 on the outer shaft housing sleeve 3| which terminates at the exhaust chamber H3 formed in the casting H0. At the bottom of the exhaust chamber is a socket H4 and a partition wall H5 directing the exhaust gases rearwardly into the discharge pipe H5 which is bolted at the rear of casting H0 and constitutes a rearward extension thereof, the anti-cavtation plate H8 being continuous across the outside of both castings. The discharge mouth H1 for the exhaust gases is located below plate H8 and at the rear of the path of the propeller |20.
The inner casing 32 constituting the shaft housing extends clear across the exhaust chamber H3 and seats in the socket H4 where packing is provided at |2| to prevent the exhaust gases and water from penetrating along the drive shaft 36 into the gear chamber |23. The drive shaft has a bearing in a bushing |24 immediately above the gear chamber. At its end it carries the drive pinion |25 which meshes with a driven gear |26 bearing in a bushing |21 provided directly in the lower unit casting H0.
Bolted to the aft surface of the lower unit casting H0 is a casting |30 which provides a closure for the rear side of the gear chamberand also provides a pump casing |32.` The propeller shaft "I`35"has its forward bearing within the driven gear 26 and its 'rearward bearing in a bushing provided in casting |30 constituting the gear casing closure. Motion is transmitted from the driven gear |26 to the propeller shaft through a torsion spring |36 having one endehtering the gear and 'the other end anchored in the pump cam |31 whichis keyed to the shaft. The torsion spring |36 is wound about the portion of the shaft intervening between the gear and the cam and provides a-resiliently flexible driving connection calculated to absorb some of the shock to which the"` propeller may vbe subject. A shearrpin |38 passing through the shaft is engaged in a notch in the hub'of propeller |20, the hub being housed to the pin by the nut |39 screwed to the endv of the shaft.
The pump comprises a cam follower |40 which isprovided with an extension bearing sleeve 4| to constitute a displacement piston operating within a Vcylinder which includes the bushing |42. Adjacent the cylinder the` casting |32 receives a cage |43 for a check valve |45`and` a hardened seat |43 screwed into the cage and replaceable as required.
The wat-er inlet provided by the cage communicates through the cylinder head |48 with the cylinder bushing |42 and with the replaceable tubular outlet valve seat member |49. On each displacement stroke of the piston against the compression of spring |50, water is forced through the outlet valve |5| and fitting |52 into the water supply pipe 31 which extends upwardly through the shaft housing between the inner and outer tubes thereof in the manner already described. Because of the presence of the inner tube no vibration can bring the supply pipe 31 into frictional contact with the rotating drive shaft 36.
I claim:
1. In an outboard motor, the combination with a lower unit gear housing, of drive and propeller shafts therein, intermeshing gears mounted on the respective shafts, one of said gears being rotatable upon the propeller shaft, a pump cam mounted on the propeller shaft, and a torsion spring encircling the propeller shaft and having its ends connected respectively with the pump cam and the last mentioned gear to constitute a yielding driving connection from the last mentioned gear to said cam and shaft, said cam being provided with means xing it to said shaft to transmit rotation thereto.
A means on said shaft within Vsaid chamber ex-v closure and extending through said closure andY provided with a propeller externally thereof, a pump mechanism unitarily mounted in said clo' sure for application and removal'therewith, and
tension for operating said pump mechanism.
3. In an outboard motor lower unit, the combination with a housing provided with a gear chamber opening on one end, of a'closure appliedA to said housing and having a cavity constituting an extension of said chamber, a displacement.
pump mounted in said closure for unitary a-pplication and removal vwith said closure, a propeller shaft having one end supported in said housing and its other end supported in said closure, and a cam 'carried by said shaft Within said cavity in -operative actuating connection with said pump, said pump being located in the plane Aof said cam'on a radius of said shaft.
4. In an outboard motor lower unit, the combination with a housing provided with a gear chamber opening rearwardly, of a closure applied tosaid housing and having a cavity constituting a rearward extension of said chamber, a displacement pump mounted in said closure, a propeller shaft having its forward end supported in said housing and its rearward end supportedy in said closureand a cam carried by said shaft within said cavity in operative actuating connection'with said pump, driving and .driven gears for said shaft'in said chamber, the driven gear being free of the shaft and substantially `concentric therewith, vand a spring constituting .a driving connection from the driven gear to the cam, said cam being xed to'said shaft for the actuation thereof. v
` .fsgrnr an outboard iowerut, the combination with a housing having an exhaust chamber and a gear chamber, both opening rearwardly, of a bearing between said chambers, a drive shaft in said bearing, a driving pinion carried by the drive shaft, -a driven gear provided with a mounting in the gear chamber, a'propeller shaft extending rearwardly from said gear, a closure for the gear chamber within which said propeller shaft is mounted, a lpump cam mounted on the propeller shaft and provided with means securing it to the shaft for rotation therewith, a spring providing ayieldable driving connection fromthe driven gear to the cam, a displacement pump comprising a cylinder formed in said closure and a piston reciprocable therein and bearing on said cam, a supply -pipe leading from said cylinder through said exhaust chamber, and a discharge pipe connected with said housing about said exhaust chamber to receive exhaust from said chamber for under water discharge and .to enclose said supply pipe.
' -6I In an .outboard 'motor lower unit, the combination with a'drive shaft journalling housing provided in the upper portion thereof with an exhaust gas passage adjacent the drive shaft and extending' axially thereof and having an upper rear wall-aperture and a lower and rearwardly opening vgear chamber, of a rearwardly projecting tubular exhaust housing attached to the shaft housing for communication with the aperture and a' water pum-p housing attached to said shaft housing below` the exhaust housing and 'adaptedtoprovide both a rear closure for said lgearchamber and supporting means for a water pump which is actuated from within the gear chamber, the lower yportion of said exhaust housingand the upper portion of said water pump housing being adapted to provide a downwardly projecting cavity in which is housed the upper portion of the pump and an associated check f-valve, and a tubular water conduit leading from thevalve, through the lower wall of the exhaust housing, and into the drive lshaft housing.v
WARREN C. CONOVER.
US321473A 1938-06-06 1940-02-29 Water pump Expired - Lifetime US2259153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US321473A US2259153A (en) 1938-06-06 1940-02-29 Water pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US212078A US2224900A (en) 1938-06-06 1938-06-06 Outboard motor
US321473A US2259153A (en) 1938-06-06 1940-02-29 Water pump

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US2259153A true US2259153A (en) 1941-10-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564903A (en) * 1950-01-03 1951-08-21 Outboard Marine & Mfg Co Outboard motor
US3082732A (en) * 1960-12-29 1963-03-26 Richard C Stallman Water jet motor for boats
EP0481927A1 (en) * 1990-10-17 1992-04-22 FASA POMPE S.r.l. A variable flow water jet cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564903A (en) * 1950-01-03 1951-08-21 Outboard Marine & Mfg Co Outboard motor
US3082732A (en) * 1960-12-29 1963-03-26 Richard C Stallman Water jet motor for boats
EP0481927A1 (en) * 1990-10-17 1992-04-22 FASA POMPE S.r.l. A variable flow water jet cleaner

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