GB1435330A - Screw propeller devices - Google Patents

Screw propeller devices

Info

Publication number
GB1435330A
GB1435330A GB3060173A GB3060173A GB1435330A GB 1435330 A GB1435330 A GB 1435330A GB 3060173 A GB3060173 A GB 3060173A GB 3060173 A GB3060173 A GB 3060173A GB 1435330 A GB1435330 A GB 1435330A
Authority
GB
United Kingdom
Prior art keywords
propeller
hub
body member
screw propeller
june
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
GB3060173A
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.)
Individual
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
Priority claimed from DE19722231753 external-priority patent/DE2231753C3/en
Application filed by Individual filed Critical Individual
Publication of GB1435330A publication Critical patent/GB1435330A/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
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—Blades

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Braking Arrangements (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1435330 Screw propeller W MINNICH 27 June 1973 [29 June 1972] 30601/73 Heading B7V In a marine screw propeller assembly comprising a streamlined body member 4 about which the propeller having hub 2 and blades 3 is relatively rotatable, the surface of the hub is so aligned that the hub and the body member together form a streamlined displacement body the axis of symmetry of which coincides with the axis of the propeller shaft 1. The curved leading edge 6b of each blade, which is longer than trailing edge 6a, extends forwardly of the hub and the ratio of the largest diameter of the body member to that of the propeller is greater than 0À6. In the embodiment of Fig. 6, rapid braking is achieved by extendable plates 14 which are radially slidable in slots 13 in the body member. The propeller assembly may also be used as a rotatable steering propeller unit, Fig. 7 (not shown).
GB3060173A 1972-06-29 1973-06-27 Screw propeller devices Expired GB1435330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722231753 DE2231753C3 (en) 1972-06-29 Propulsion element, in particular for ships

Publications (1)

Publication Number Publication Date
GB1435330A true GB1435330A (en) 1976-05-12

Family

ID=5849116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3060173A Expired GB1435330A (en) 1972-06-29 1973-06-27 Screw propeller devices

Country Status (5)

Country Link
JP (1) JPS4956392A (en)
FR (1) FR2190659B1 (en)
GB (1) GB1435330A (en)
IT (1) IT986247B (en)
SE (1) SE397071B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207118A (en) * 1963-09-24 1965-09-21 Paul R Baldwin Boat propulsion system

Also Published As

Publication number Publication date
FR2190659A1 (en) 1974-02-01
SE397071B (en) 1977-10-17
JPS4956392A (en) 1974-05-31
DE2231753B2 (en) 1976-11-25
DE2231753A1 (en) 1974-01-17
FR2190659B1 (en) 1977-09-16
IT986247B (en) 1975-01-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee