AU7783387A - Creación de Inventos y Patentes con Inteligencia Artificial

AU7783387A – Marine drive water pump impeller
– Google Patents

AU7783387A – Marine drive water pump impeller
– Google Patents
Marine drive water pump impeller

Info

Publication number
AU7783387A

AU7783387A
AU77833/87A
AU7783387A
AU7783387A
AU 7783387 A
AU7783387 A
AU 7783387A
AU 77833/87 A
AU77833/87 A
AU 77833/87A
AU 7783387 A
AU7783387 A
AU 7783387A
AU 7783387 A
AU7783387 A
AU 7783387A
Authority
AU
Australia
Prior art keywords
hub
impeller
strength
water pump
pump
Prior art date
1986-08-18
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.)

Granted

Application number
AU77833/87A
Other versions

AU593133B2
(en

Inventor
Michael E. Frazzell
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.)

Brunswick Corp

Original Assignee
Brunswick Corp
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.)
1986-08-18
Filing date
1987-07-29
Publication date
1988-03-08

1987-07-29
Application filed by Brunswick Corp
filed
Critical
Brunswick Corp

1988-03-08
Publication of AU7783387A
publication
Critical
patent/AU7783387A/en

1990-02-01
Application granted
granted
Critical

1990-02-01
Publication of AU593133B2
publication
Critical
patent/AU593133B2/en

2007-07-29
Anticipated expiration
legal-status
Critical

Status
Expired – Fee Related
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS

F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS

F04C5/00—Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable

Description

MARINE DRIVE WATER PUMP IMPELLER
The invention relates to marine drive water pumps, and particularly addresses problems with frozen water pumps.
In a marine drive when the unit is frozen in water, or water otherwise freezes in the pump, the pump impeller fails when the starter rope is pulled or the engine cranked because the impeller and its mounting and/or bonding arrangement is not strong enough to crush the ice. A marine drive water pump is typically a rotary vane positive displacement pump having a pump driveshaft, a drive hub around the driveshaft and keyed thereto to rotate therewith, and a plurality of flex¬ ible vanes extending radially outwardly and bonded to the hub along an annular vane base portion, for example as shown in U.S. Patent Nos. 2,466,440 and 4,392,779. Various metals have been used for the drive hub, including brass and stainless steel. Plastic hubs have also been used, for example injection molded nylon, and which may also be reinforced, such as with glass or other random chopped fibers.
Metal hubs are susceptible to rubber adhesion failures due to galvanic action at the bond interface with the vanes. Non-metallic plastic hubs solve the adhesion problem, and are strong enough for normal duty. However, plastic hubs crack and split if abused or subjected to higher torsional loading, which occurs when the pump assembly freezes full of ice.
The object of the present invention is to solve

the problem of hub splitting due to torsional loading, while still retaining rubber bond adhesion to the hub. The present invention provides a marine drive water pump impeller for a marine rotary vane positive displacement water pump having a pump driveshaft, com¬ prising an annular drive hub around said driveshaft and keyed thereto to rotate therewith, and vane means com¬ prising an annular base bonded to said hub and having a plurality of flexible vanes extending radially outwardly therefrom characterized by said drive hub being filament such that it has sufficient circumferential hoop strength, without sacrificing the strength of bond adhesion to said annular base of said vanes to crush ice in said pump in a freezing environment. The invention provides both of the above noted previously incompatible results. The invention applies filament winding technology to a marine drive water pump impeller, which application has been found to afford significant performance improvements. The invention enables exceptional strength in the desired direction, namely circumferential hoop strength, with¬ out sacrificing bond adhesion strength. In the drawings: Figure 1 is an exploded perspective, view of a marine drive water pump impeller constructed in ac¬ cordance with the invention.
Figure 2 is an assembly view of the impeller of Figure 1.
Figure 2 shows a marine drive water pump im- peller 1 for a marine rotary vane positive displacement pump having a pump driveshaft 2, for example as shown in the above noted U.S. Patent Nos. 2,466,440 and 4, 392,779. An annular drive hub 3, Figure 1, is disposed around driveshaft 2 and keyed thereto with a key-way notch 4 to rotate therewith, for example as shown in U.S. Patent No. 4392,779. Vane means» 5, Figure 1, is

provided by an annular base 6 bonded to hub 3 and having a plurality of flexible vanes 7 extending radially outwardly therefrom. Rotary positive displacement pumping action is shown in Figure 1 of U.S. Patent No. 2,466,440 and in Figure 5 of U.S. Patent No. 4,392,779. As noted in U.S. Patent No. 4,392,779, vane means 5 is formed of a flexible rubber material, for example nitrile elastomer.
In the present invention, drive hub 3 is a filament wound member, preferably wound in the circum¬ ferential hoop direction and cured with a resin poly¬ mer, for which further reference may be had to: «Fila¬ ment Winding», J.F. Kober, Modern Plastics Encyclopedia 1985-1986, p. 315; SPI Handbook of Technology and En- gineering of Reinforced Plastics/Composites, Chapter V-I, «Filament Winding», Mohr, Oleeski, Shook and Meyer, Second Edition, 1973, Van Nostrand Reinholdt Compl , New York, pgs. 243-267.and Polygon Products Brochure, Polygon Company, Industrial Park, P.O. Box 176, Walkerton, Indiana 46574-0176. It is preferred that hub 3 be a single continuous filament wound member. A circumferential hoop weave is an alternative. After winding and curing, key-way notch 4 is cut into the inner circumferential surface 10 of hub 3, for keying to driveshaft 2, for example as shown in U.S. Patent No. 4,392,779. Alternatively, notch 4 may be molded in place. In the disclosed embodiment, epoxy is the resin polymer. Alternatives include polyester and polyimide. The filament fiberis glass. Alternatives include Kevlar-aramid,,.carbon and boron.
The inner circumference 8 of the rubber vane annular base portion 6 is molded in place over the outer circumference 9 of annular drive hub 3. The rubber adheres and bonds to the resin polymer at sur- face 9, to thus enable substantial bond strength

between hub 3 and vane base 6. This bond strength is substantially greater than with a metal hub. A metal hub is less compatible to such bonding, is subject to galvanic corrosion, and can surface oxidize prior to bonding.
With respect to strength of the hub itself, fracture tests were conducted on a prior glass rein¬ forced nylon hub versus the present continuous filament wound hub. The hubs were subjected to an expansion test wherein a steel cone is forced into the hub. The nylon hub completely fractured at a load of 200-300 pounds. The filament wound hub suffered only a partial fiber fracture at 1,850-2,000 pounds of load.
The resin polymer of hub 3 and the rubber of annular vane base 6 thus enable substantially increased bond strength therebetween, as compared with a metal hub, and without sacrificing the strength of the hub itself. Hub strength is substantially increased as compared with a glass filled nylon hub. The invention thus accomplishes both of the previously incompatible but desirable results of high bond strength and high hub strength. This is particularly beneficial when the marine drive unit is used in freezing environments. It is recognized that various alternatives and modifications are possible

Claims (5)

1. A marine drive water pump impeller for a marine rotary vane positive displacement water pump having a pump driveshaft, comprising an annular drive hub (3) around said driveshaft and keyed thereto to rotate therewith, and vane means comprising an annular base (6) bonded to said hub (3) and having a plurality of flexible vanes (7) extending radially outwardly therefrom, characterized by said drive hub (3) being such that it has sufficient circumferential hoop strength, without sacrificing the strength of bond adhesion to said annular base (6) of said vanes (7) to crush ice in said pump in a freezing environment.

2. The impeller of Claim 1, characterized in that said hub (3) comprises a resin polymer, and wherein said annular base (6) of said vane means com¬ prises rubber, to enable substantial bond strength between said hub (3) and said base (6) .

3. The impeller of Claim 1 or 2, char¬ acterized in that said hub (3) is wound in the circum¬ ferential hoop direction, to provide substantial hub strength.

4. The impeller of Claim 3, characterized in that said hub (3) is wound by a single continuous filament.

5. The impeller of Claim 3, characterized in that said hub (3) is wound by a circumferential weave.

AU77833/87A
1986-08-18
1987-07-29
Marine drive water pump impeller

Expired – Fee Related

AU593133B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

US897628

1986-08-18

US06/897,628

US4718837A
(en)

1986-08-18
1986-08-18
Marine drive water pump impeller

Publications (2)

Publication Number
Publication Date

AU7783387A
true

AU7783387A
(en)

1988-03-08

AU593133B2

AU593133B2
(en)

1990-02-01

Family
ID=25408152
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU77833/87A
Expired – Fee Related

AU593133B2
(en)

1986-08-18
1987-07-29
Marine drive water pump impeller

Country Status (7)

Country
Link

US
(1)

US4718837A
(en)

EP
(1)

EP0319534A1
(en)

JP
(1)

JPH02500991A
(en)

AU
(1)

AU593133B2
(en)

BR
(1)

BR8707777A
(en)

CA
(1)

CA1269277A
(en)

WO
(1)

WO1988001350A1
(en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4943404A
(en)

1987-11-13
1990-07-24
Phillips Petroleum Company
Process for producing a fiber reinforced thermoplastic article

JPH0755510B2
(en)

1988-06-27
1995-06-14
株式会社ブリヂストン

Vulcanized rubber-synthetic resin composite manufacturing method

US4940402A
(en)

1988-11-08
1990-07-10
Brunswick Corporation
High pressure and high lift pump impeller

US5102550A
(en)

1990-11-01
1992-04-07
The United States Of America As Represented By The Secretary Of The Navy
Apparatus and process for desalination of seawater

CA2112279A1
(en)

1993-10-28
1995-04-29
Gregory A. Zurbuchen
Composite ratchet wrench and method of making same

US5660536A
(en)

1996-01-05
1997-08-26
Brunswick Corporation
High capacity simplified sea water pump

US6364781B2
(en)

1998-02-09
2002-04-02
Mannesmann Sachs Ag
Installation apparatus for a coupling device having a holder, which is provided on a flywheel mass, for a driver

GB2352017B
(en)

1999-07-14
2004-02-04
Mannesmann Sachs Ag
Clutch assembly

ITMI20030263A1
(en)

2003-02-13
2004-08-14
Manifattura Gomma Finnord S P A

IMPELLER FOR COOLING PUMPS, IN PARTICULAR FOR

CN104295491B
(en)

2014-09-01
2017-07-07
浙江维新汽车配件有限公司
A kind of engine of boat and ship rubber impeller formula water pump

US10087946B2
(en)

2016-02-09
2018-10-02
Brunswick Corporation
Centrifugal pumps having anti-air-locking features

CN109804163B
(en)

2016-11-08
2020-05-05
Nok株式会社
Pump and method of operating the same

WO2021262551A1
(en)

2020-06-26
2021-12-30
LeimbachCausey, LLC
Multi-chamber impeller pump

Family Cites Families (11)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2899902A
(en)

1959-08-18

Rotary pump impeller

US2466440A
(en)

1948-07-29
1949-04-05
Kiekhaefer Elmer Carl
Impeller for rotary pumps

US3014429A
(en)

1959-01-15
1961-12-26
Jabsco Pump Co
Tandem pump

US3136370A
(en)

1961-02-27
1964-06-09
Minnesota Rubber Co
Outboard motor impeller hub

US3673025A
(en)

1968-10-23
1972-06-27
Yamauchi Rubber Ind Co Ltd
Method of making a polyurethane rubber covered roll

US3733233A
(en)

1969-05-16
1973-05-15
Abrasive Aids Pty Ltd
Method of making a roller

US4392779A
(en)

1980-05-05
1983-07-12
Brunswick Corporation
Marine drive water pump

EP0089809A1
(en)

1982-03-23
1983-09-28
The British Petroleum Company p.l.c.
Method for the production of fibre reinforced articles

EP0103720A1
(en)

1982-08-23
1984-03-28
Itt Industries, Inc.
Vane-impeller arrangement for pumps

GB2126655B
(en)

1982-09-08
1986-01-15
Itt Jabsco Limited
Rotary positive-displacement pumps

US4512720A
(en)

1983-04-12
1985-04-23
Barry Wright Corporation
Pump impellers and manufacture thereof by co-injection molding

1986

1986-08-18
US
US06/897,628
patent/US4718837A/en
not_active
Expired – Lifetime

1987

1987-07-29
JP
JP62504619A
patent/JPH02500991A/en
active
Pending

1987-07-29
EP
EP87905121A
patent/EP0319534A1/en
not_active
Ceased

1987-07-29
WO
PCT/US1987/001792
patent/WO1988001350A1/en
not_active
Application Discontinuation

1987-07-29
AU
AU77833/87A
patent/AU593133B2/en
not_active
Expired – Fee Related

1987-07-29
BR
BR8707777A
patent/BR8707777A/en
unknown

1987-08-12
CA
CA000544271A
patent/CA1269277A/en
not_active
Expired – Lifetime

Also Published As

Publication number
Publication date

EP0319534A1
(en)

1989-06-14

US4718837A
(en)

1988-01-12

BR8707777A
(en)

1989-10-17

WO1988001350A1
(en)

1988-02-25

JPH02500991A
(en)

1990-04-05

CA1269277A
(en)

1990-05-22

AU593133B2
(en)

1990-02-01

Información de contacto