[go: up one dir, main page]

NZ334355A - Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier - Google Patents

Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier

Info

Publication number
NZ334355A
NZ334355A NZ334355A NZ33435597A NZ334355A NZ 334355 A NZ334355 A NZ 334355A NZ 334355 A NZ334355 A NZ 334355A NZ 33435597 A NZ33435597 A NZ 33435597A NZ 334355 A NZ334355 A NZ 334355A
Authority
NZ
New Zealand
Prior art keywords
drive
transmission carrier
drive transmission
section
impellers
Prior art date
Application number
NZ334355A
Inventor
Richard Gwyn Davies
Barry John Davies
Original Assignee
Barry John Davies
Richard Gwyn Davies
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 Barry John Davies, Richard Gwyn Davies filed Critical Barry John Davies
Priority to NZ334355A priority Critical patent/NZ334355A/en
Priority claimed from PCT/NZ1997/000153 external-priority patent/WO1998021090A1/en
Publication of NZ334355A publication Critical patent/NZ334355A/en

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A water jet propulsion unit comprises an intake section 52, a pump section 44 and a drive section 22 containing a pressure control device 35 mounted on a drive transmission carrier 20. The drive transmission carrier 20 consists of a removable upstream mounted cone shaped bearing carrier 31, gears 6, 7, 8 and a downstream mounted cover plate 32. In the pump section there are two counter-rotating axial flow impellers 2, 3 on concentric counter-rotating shafts 4, 5. The impellers 2, 3 are mounted upstream of the drive section. The drive transmission carrier 20 is located in the drive section by hydrodynamically shaped support vanes downstream of the axial flow impellers. The upper support vane has vertically aligned hole to permit a vertically aligned input drive shaft 9 to connect to the drive transmission carrier 20. The drive section 22 is detachable from the pump section 44 and the intake section 52. The pressure control device 35 allows the propulsion unit to operate in a low pressure high mass mode. The impellers 2, 3 can be removed without disassembly of the drive transmission carrier 20. The drive transmission carrier and the pressure control device may be mounted in the vortex created in the water flow by the two impellers. The unit is mountable in either a stern-drive or an outboard (Fig 7) configuration of a water borne craft..
NZ334355A 1996-11-11 1997-11-07 Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier NZ334355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ334355A NZ334355A (en) 1996-11-11 1997-11-07 Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ29956596 1996-11-11
NZ334355A NZ334355A (en) 1996-11-11 1997-11-07 Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier
PCT/NZ1997/000153 WO1998021090A1 (en) 1996-11-11 1997-11-07 Water jet propulsion unit for use in water borne craft

Publications (1)

Publication Number Publication Date
NZ334355A true NZ334355A (en) 2000-04-28

Family

ID=26651679

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ334355A NZ334355A (en) 1996-11-11 1997-11-07 Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier

Country Status (1)

Country Link
NZ (1) NZ334355A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7824237B2 (en) 2003-07-14 2010-11-02 Propeller Jet Limited Impeller drive for a water jet propulsion unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7824237B2 (en) 2003-07-14 2010-11-02 Propeller Jet Limited Impeller drive for a water jet propulsion unit

Similar Documents

Publication Publication Date Title
CA2146983A1 (en) Water jet propulsion unit for use in a jet boat
US4929200A (en) Vessel provided with at least one water jet propulsion unit
US5314310A (en) Spider mounted centrifugal mixing impeller
US6193569B1 (en) Water jet propulsion unit for use in water borne craft
GB2329883A (en) Hydraulic jet propulsion apparatus for boats
KR880002203B1 (en) Water jet unit
ES8204303A1 (en) Improvements in or relating to fluid agitator assemblies
AU580702B2 (en) Agitators
NZ334355A (en) Axial flow water jet propulsion unit comprising impellers mounted upstream of the drive transmission carrier
US2540948A (en) Apparatus for aerating liquids
US6422904B1 (en) Water jet propulsion unit for use in water borne craft
US4343611A (en) Marine propulsion
CA2572148A1 (en) Impeller drive for a water jet propulsion unit
NZ330764A (en) Water jet propulsion system, with adjustable inlet duct and outlet nozzle
NZ331303A (en) Water jet propulsion apparatus for a water-borne vessel
JPS5762958A (en) Motor driven fuel pump
WO1984001760A1 (en) Hydro turbo jet
US7048260B2 (en) Turbocharged aerator
AUPP804799A0 (en) Jet propulsion pump
UA18795A (en) Axial hydro-fan
RU2109171C1 (en) Fluid medium stream shaping device
EP0187645A3 (en) Centrifugal, inline, opposed balance gas blower
GB2038748A (en) Propulsion unit
EP0124513A1 (en) Hydro jet
RU2000124322A (en) THE WATER-JET TRACTION UNIT DESIGNED FOR USE IN A LIVING-BOAT FLOATING MACHINE

Legal Events

Date Code Title Description
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)
ERR Error or correction

Free format text: THE OWNER HAS BEEN CORRECTED TO 225666, BARRY JOHN DAVIES, 15 DUNDONALD STREEET, TAINUI, DUNEDIN, NZ; 872500, RICHARD GWYN DAVIES, 15 DUNDONALD STREET, TAINUI, DUNEDIN 9013, NZ

Effective date: 20140612

Free format text: THE OWNER HAS BEEN CORRECTED TO 610380, BARRY JOHN DAVIES, 15 DUNDONALD STREET, TAINUI, DUNEDIN 9013, NZ; 872500, RICHARD GWYN DAVIES, 15 DUNDONALD STREET, TAINUI, DUNEDIN 9013, NZ

Effective date: 20140612

Free format text: THE OWNER HAS BEEN CORRECTED TO 610380, BARRY JOHN DAVIES, 15 DUNDONALD STREET, TAINUI, DUNEDIN 9013, NZ; 3000100, RICHARD GWYN DAVIES, 15 DUNDONALD STREET, TAINUI, DUNEDIN 9013, NZ

Effective date: 20140612