GB692403A - Marine propellers having variable pitch blades - Google Patents

Marine propellers having variable pitch blades

Info

Publication number
GB692403A
GB692403A GB27005/51A GB2700551A GB692403A GB 692403 A GB692403 A GB 692403A GB 27005/51 A GB27005/51 A GB 27005/51A GB 2700551 A GB2700551 A GB 2700551A GB 692403 A GB692403 A GB 692403A
Authority
GB
United Kingdom
Prior art keywords
hub
oil
passages
tube
rod
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
GB27005/51A
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
Application filed by Individual filed Critical Individual
Publication of GB692403A publication Critical patent/GB692403A/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
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H2003/088—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid characterised by supply of fluid actuating medium to control element, e.g. of hydraulic fluid to actuator co-rotating with the propeller

Abstract

692,403. Variable-pitch propellers. LIAAEN, N. J. Nov. 16, 1951. [Nov. 16, 1950] No. 27005/51. Class 114. In a variable-pitch marine propeller in which the propeller hub is lubricated by oil supplied thereto under pressure which also acts to reduce the ingress of sea water, the intake of the return flow passage 7 for the oil is located at or near the wall of the hub where the distance of the wall from the axis of the hub is a maximum. Any sea water which may enter the hub will thus be removed therefrom by centrifugal action. The oil is supplied to the hub from a reservoir 17 by a pump 16 through passages 25, 29, 30, 31, 33, and the annular space between a tube 20 and a pitchchange rod 4. The oil is returned through passage 7, an annular passage 5<SP>1</SP> surrounding the tube 20, and passages 21, 22, 17<SP>1</SP>. The blades are adjusted through the rod 4 by a servomotor piston 45. The propeller shaft bearing liners 10, 11 are supplied with lubricant from a tank 35. In another embodiment the tube 20 is omitted and the return passages are provided by axial passages or grooves in the bearing liners. A tank is also inserted in the return line for separating out any sea water which may be present in the oil. Alternatively, the oil may be conveyed to or from the hub through a bore in the rod 4. Specification 609,009 is referred to.
GB27005/51A 1950-11-16 1951-11-16 Marine propellers having variable pitch blades Expired GB692403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO692403X 1950-11-16

Publications (1)

Publication Number Publication Date
GB692403A true GB692403A (en) 1953-06-03

Family

ID=19906674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27005/51A Expired GB692403A (en) 1950-11-16 1951-11-16 Marine propellers having variable pitch blades

Country Status (1)

Country Link
GB (1) GB692403A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988154A (en) * 1956-08-10 1961-06-13 Voith Gmbh J M Blade wheel propeller
US3051248A (en) * 1957-04-18 1962-08-28 Ernest-Charles Hatcher Propellers or the like having variable-pitch blades
GB2161224A (en) * 1984-06-14 1986-01-08 Voith Gmbh J M Method for lubricating and if necessary cooling the rotary bearings of axial blowers and blowers for carrying out the method
CN102180250A (en) * 2011-04-28 2011-09-14 杭州前进齿轮箱集团股份有限公司 Ship propeller hub with front oil cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988154A (en) * 1956-08-10 1961-06-13 Voith Gmbh J M Blade wheel propeller
US3051248A (en) * 1957-04-18 1962-08-28 Ernest-Charles Hatcher Propellers or the like having variable-pitch blades
GB2161224A (en) * 1984-06-14 1986-01-08 Voith Gmbh J M Method for lubricating and if necessary cooling the rotary bearings of axial blowers and blowers for carrying out the method
US4668168A (en) * 1984-06-14 1987-05-26 J.M. Voith Gmbh Lubricating and cooling rotary bearings of axial blowers
CN102180250A (en) * 2011-04-28 2011-09-14 杭州前进齿轮箱集团股份有限公司 Ship propeller hub with front oil cylinder

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