GB1488189A - Water jet marine propulsion units - Google Patents

Water jet marine propulsion units

Info

Publication number
GB1488189A
GB1488189A GB28809/75A GB2880975A GB1488189A GB 1488189 A GB1488189 A GB 1488189A GB 28809/75 A GB28809/75 A GB 28809/75A GB 2880975 A GB2880975 A GB 2880975A GB 1488189 A GB1488189 A GB 1488189A
Authority
GB
United Kingdom
Prior art keywords
edge
water jet
marine propulsion
leading edge
propulsion units
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
Application number
GB28809/75A
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.)
Hydro Tech Corp
Original Assignee
Hydro Tech 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.)
Filing date
Publication date
Priority claimed from US05/493,715 external-priority patent/US3935833A/en
Application filed by Hydro Tech Corp filed Critical Hydro Tech Corp
Publication of GB1488189A publication Critical patent/GB1488189A/en
Expired 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
    • B63H11/04—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Exhaust Silencers (AREA)

Abstract

1488189 Water jet propulsion HYDRO-TECH CORP 9 July 1975 [1 Aug 1974] 28809/75 Heading B7V A water-jet marine propulsion unit comprises a pump having a double-suction impeller 104 with two inlets 144, 146 and an exhaust 166, the inlets being formed by sidewalls 162, 164 and pump casing parts 158 and 160 and presenting a first leading edge 152 to the inlet 144 and a first trailing edge 154 positioned behind and below the edge 152, when the unit is stationary, and a second leading edge to the inlet 146, which is the edge 154, and a second trailing edge 161 which is behind and above the first leading edge 152. The unit is adapted to be mounted outboard on a hull 153 and driven by an inboard engine via a splined shaft 36.
GB28809/75A 1974-08-01 1975-07-09 Water jet marine propulsion units Expired GB1488189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/493,715 US3935833A (en) 1973-07-25 1974-08-01 Jet boat pump

Publications (1)

Publication Number Publication Date
GB1488189A true GB1488189A (en) 1977-10-05

Family

ID=23961402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28809/75A Expired GB1488189A (en) 1974-08-01 1975-07-09 Water jet marine propulsion units

Country Status (4)

Country Link
JP (1) JPS5138101A (en)
GB (1) GB1488189A (en)
IT (1) IT1041094B (en)
SE (1) SE405712B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2416003A (en) * 2004-07-08 2006-01-11 Weir Pumps Ltd Double volute casing for a centrifugal pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54172303U (en) * 1978-05-25 1979-12-05
RU2484305C1 (en) * 2011-12-09 2013-06-10 Общество с ограниченной ответственностью "Нефтекамский машиностроительный завод" (ООО "НКМЗ") Main oil electric pump unit, and method for improvement of unit characteristics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2416003A (en) * 2004-07-08 2006-01-11 Weir Pumps Ltd Double volute casing for a centrifugal pump

Also Published As

Publication number Publication date
IT1041094B (en) 1980-01-10
JPS5138101A (en) 1976-03-30
SE7507514L (en) 1976-02-02
SE405712B (en) 1978-12-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee