CA2395728A1 - Water jet propulsion apparatus - Google Patents

Water jet propulsion apparatus Download PDF

Info

Publication number
CA2395728A1
CA2395728A1 CA002395728A CA2395728A CA2395728A1 CA 2395728 A1 CA2395728 A1 CA 2395728A1 CA 002395728 A CA002395728 A CA 002395728A CA 2395728 A CA2395728 A CA 2395728A CA 2395728 A1 CA2395728 A1 CA 2395728A1
Authority
CA
Canada
Prior art keywords
cap
duct
bearing
water jet
jet propulsion
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.)
Granted
Application number
CA002395728A
Other languages
French (fr)
Other versions
CA2395728C (en
Inventor
Tomohiro Fuse
Masahiko Tsuchiya
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.)
Honda Motor Co Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2395728A1 publication Critical patent/CA2395728A1/en
Application granted granted Critical
Publication of CA2395728C publication Critical patent/CA2395728C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
    • B63H11/103—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means to increase efficiency of propulsive fluid, e.g. discharge pipe provided with means to improve the fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type

Abstract

To sufficiently reduce a rotation component of a water stream very close to the external face of a cap 34 of a bearing, reduce the size of the cap 34, and make positioning between the cap 34 and another stationary vane 31c1 unnecessary. In a water jet propulsion apparatus having a duct 31 forming a channel, an impeller 32 disposed in the duct 31, a bearing 33 of the impeller 32 provided in the duct 31, and a cap 34 closing the rear end of the bearing 33, stream straightening grooves 34a are formed in the external face of the cap 34. In a portion facing the cap 34, in the internal face of the duct 31, a stationary vane 31c1 is formed toward the cap 34.
CA002395728A 2001-09-06 2002-07-26 Water jet propulsion apparatus Expired - Fee Related CA2395728C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-270154 2001-09-06
JP2001270154A JP3963680B2 (en) 2001-09-06 2001-09-06 Water jet propulsion machine

Publications (2)

Publication Number Publication Date
CA2395728A1 true CA2395728A1 (en) 2003-03-06
CA2395728C CA2395728C (en) 2005-02-15

Family

ID=19095849

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002395728A Expired - Fee Related CA2395728C (en) 2001-09-06 2002-07-26 Water jet propulsion apparatus

Country Status (3)

Country Link
US (1) US6840826B2 (en)
JP (1) JP3963680B2 (en)
CA (1) CA2395728C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111776184B (en) * 2013-03-15 2022-11-04 S·布洛诺斯基 Marine duct propeller jet propulsion device
US10597129B1 (en) 2013-03-15 2020-03-24 Stefan Broinowski Marine ducted propeller mass flux propulsion system
CN106741784A (en) * 2017-01-19 2017-05-31 罗朝霞 Electric environment protecting hydrojet propelled ship

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1824667A (en) * 1926-07-20 1931-09-22 Syndicat Vaproc Rotary propeller
US3083529A (en) * 1959-03-24 1963-04-02 Charles W F Hemilton Hydraulic jet propulsion apparatus for water-borne craft
GB1363637A (en) * 1970-11-13 1974-08-14 Ua Eng Ltd Hydraulic jet propulsion means
JPS6030599B2 (en) * 1980-12-18 1985-07-17 川崎重工業株式会社 Mixed flow water injection propulsion device
US5123867A (en) * 1990-05-10 1992-06-23 Stefan Broinowski Marine jet propulsion unit
JPH05105189A (en) 1991-10-14 1993-04-27 Sanshin Ind Co Ltd Water jet propulsion machine
US5759074A (en) * 1996-09-25 1998-06-02 Brunswick Corporation Impeller mounting system for a personal watercraft
JP2000161126A (en) * 1998-11-30 2000-06-13 Yamaha Motor Co Ltd Engine structure for small-sized vessel
US6273768B1 (en) * 2000-04-07 2001-08-14 Bombardier Motor Corporation Of America Water jet propulsion unit with counter-rotating impellers
US6273769B1 (en) * 2000-05-02 2001-08-14 Chris W. Bell Transparent thrust cone for monitoring oil level and condition in watercraft jet propulsion system

Also Published As

Publication number Publication date
JP3963680B2 (en) 2007-08-22
JP2003072686A (en) 2003-03-12
US6840826B2 (en) 2005-01-11
US20030045183A1 (en) 2003-03-06
CA2395728C (en) 2005-02-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130726