GB1333337A - Jet propulsion unit for boats - Google Patents

Jet propulsion unit for boats

Info

Publication number
GB1333337A
GB1333337A GB1928772A GB1928772A GB1333337A GB 1333337 A GB1333337 A GB 1333337A GB 1928772 A GB1928772 A GB 1928772A GB 1928772 A GB1928772 A GB 1928772A GB 1333337 A GB1333337 A GB 1333337A
Authority
GB
United Kingdom
Prior art keywords
duct
transmission shaft
propulsion unit
surrounds
coaxial
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
GB1928772A
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.)
SIRA
Original Assignee
SIRA
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 SIRA filed Critical SIRA
Publication of GB1333337A publication Critical patent/GB1333337A/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
    • 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
    • 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
    • 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
    • B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Exhaust Silencers (AREA)

Abstract

1333337 Water jet outboard unit SIRA SOC INDUSTRIALE RICERCHE AUTOMOTOR ISTICHE 26 April 1972 [11 May 1971] 19287/72 Heading B7V A marine jet propulsion unit 1 comprises a tubular body 2 rotatably mounted in a support 6 and internal combustion engine 11A is mounted on the body. Transmission shaft 19 is drivingly connected to bladed impeller 25 situated in a tubular casing 21 the axis of which is coaxial with the transmission shaft and water inlet 22 communicates with the tubular casing and is connected to discharge nozzle 28 by elbow duct 27. Annular duct BB<SP>1</SP> surrounds the transmission shaft and extends from the elbow duct to the upper part of the tubular body for the conduction of cooling water to upper chamber E into which conduit 51 leads engine exhaust gases to mix with the cooling water. A second annular duct FF<SP>1</SP> coaxial with annular duct BB<SP>1</SP> leads from this upper chamber to intermediate chamber G, H, I, which surrounds the elbow duct and which communicates with apertures 32, 33.
GB1928772A 1971-05-11 1972-04-26 Jet propulsion unit for boats Expired GB1333337A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6855871 1971-05-11

Publications (1)

Publication Number Publication Date
GB1333337A true GB1333337A (en) 1973-10-10

Family

ID=11309837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1928772A Expired GB1333337A (en) 1971-05-11 1972-04-26 Jet propulsion unit for boats

Country Status (5)

Country Link
US (1) US3750614A (en)
CA (1) CA939978A (en)
DE (1) DE2222982A1 (en)
FR (1) FR2139415A5 (en)
GB (1) GB1333337A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807344A (en) * 1972-05-15 1974-04-30 Sira Outboard motor having a water jet impellor unit
JPS5489799U (en) * 1977-12-08 1979-06-25
JPS6030415A (en) * 1983-07-28 1985-02-16 Sanshin Ind Co Ltd Exhaust muffler for outboard engine
US4687450A (en) * 1985-05-06 1987-08-18 Bland Gerald F Marine propulsion device exhaust system
US4755155A (en) * 1987-03-03 1988-07-05 Outboard Marine Corporation Marine propulsion device oil cooling kingpin arrangement
US4861296A (en) * 1987-12-23 1989-08-29 Outboard Marine Corporation Marine propulsion device exhaust system
US5114368A (en) * 1989-12-12 1992-05-19 Moyle Don R Shaft shielding top loader
US5481997A (en) * 1994-04-26 1996-01-09 Arndt; Raymond U. Water jet propelled kayak

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB567569A (en) * 1944-02-16 1945-02-20 Francis Brian Smith Improvements relating to the propulsion of boats and other water craft
US2743698A (en) * 1953-10-19 1956-05-01 Joseph S Leouard Lower unit for boat motors of the type having downwardly directed drive shafts
GB1071054A (en) * 1963-05-01 1967-06-07 British Anzani Engineering Com Improvements in impeller housings for outboard motors
US3310022A (en) * 1965-08-23 1967-03-21 Kiekhaefer Corp Exhaust system for outboard motors

Also Published As

Publication number Publication date
DE2222982A1 (en) 1972-11-23
US3750614A (en) 1973-08-07
CA939978A (en) 1974-01-15
FR2139415A5 (en) 1973-01-05

Similar Documents

Publication Publication Date Title
US2499863A (en) Rotary jet-propelled motor
GB2057051A (en) Turbulence device for engine mixture
US2603947A (en) Continuous combustion type rotating combustion products generator
GB749009A (en) An improved jet propulsion plant
JPS6424126A (en) Combustor with intensified turbine nozzle cooling
GB976854A (en) Aircraft propulsion apparatus
GB1333337A (en) Jet propulsion unit for boats
GB1230203A (en)
GB1069217A (en) Improvements relating to engines
GB567569A (en) Improvements relating to the propulsion of boats and other water craft
GB1511037A (en) Outboard motor units
IE41013B1 (en) An internal combustion engine provided with means for improving its efficiency
FR2319774A1 (en) Engine carburetter - has upper and lower portions of rotary fuel chamber connected by annular gap
GB627634A (en) Improvements in or relating to gas turbine aircraft propulsion power plants
GB943763A (en) An improved diffuser for fluids exhausted from internal combustion engines
GB979617A (en) Marine propulsion
GB1450903A (en) Hydro-jet propulsion module for watercraft
GB1329803A (en) Gas generator and method of operation
FR2257789A1 (en) Propulsive unit for missile - has jet and rocket with coaxial discharges axially displaced from each other
GB877982A (en) Liquid jet propulsion outboard motor
GB672660A (en) Improvements relating to internal combustion power plants
GB633695A (en) Rotary propeller
GB670933A (en) Improvements in or relating to devices for increasing the maximum speed of vehicles or craft driven by internal combustion engines
GB157781A (en) Internal combustion unit for use as a propeller or tractor
GB596819A (en) Improvements in or relating to internal combustion engine power plants

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee