GB661170A - Improvements in and relating to variable pitch impellers or propellers - Google Patents

Improvements in and relating to variable pitch impellers or propellers

Info

Publication number
GB661170A
GB661170A GB26932/47A GB2693247A GB661170A GB 661170 A GB661170 A GB 661170A GB 26932/47 A GB26932/47 A GB 26932/47A GB 2693247 A GB2693247 A GB 2693247A GB 661170 A GB661170 A GB 661170A
Authority
GB
United Kingdom
Prior art keywords
oil
piston
chamber
space
tube
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
GB26932/47A
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.)
MACHF Gebr STORK & CO N V
Original Assignee
MACHF Gebr STORK & CO N V
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 MACHF Gebr STORK & CO N V filed Critical MACHF Gebr STORK & CO N V
Publication of GB661170A publication Critical patent/GB661170A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

661,170. Variable-pitch propellers. MACHINEFABRIEK GEB. STORK & CO. N.V. Oct. 7, 1947 [Oct. 8, 1946], No. 26932/47. Class 114. In a variable-pitch propeller or pump impeller whose blades 6 are adjusted by a pressure oil operated servomoter piston 10 having a central portion 12 passing through a bore in a partition which separates the servomotor cylinder 9 from the interior space 13 of the hub which is formed as a chamber for oil leaking from the cylinder and has a free discharge therefrom, the bore in the partition has oil leakage restricting means such as a stripping-box 29. The servomotor central valve 25 is actuated by an electric motor 33 through a pivoted lever 35 to direct the oil from an inlet 23 to either the left hand cylinder space 18, through an annular space 26, or to the right hand space 17, through a tube 19 disposed within the propeller shaft 3 and secured to the piston. The tube forms the " follow-up mechanism and has leads 20 to cut off the oil flow. The chamber 13 communicates through passages 30, 47 with the oil outlet 24. An indicator 40 may be provided for the pitch. In another embodiment the central valve is disposed in the central portion 12 of the piston and is moved by the tube 19. The oil in the chamber lubricates the moving parts of the adjusting mechanism.
GB26932/47A 1946-10-08 1947-10-07 Improvements in and relating to variable pitch impellers or propellers Expired GB661170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL661170X 1946-10-08

Publications (1)

Publication Number Publication Date
GB661170A true GB661170A (en) 1951-11-21

Family

ID=19797451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26932/47A Expired GB661170A (en) 1946-10-08 1947-10-07 Improvements in and relating to variable pitch impellers or propellers

Country Status (1)

Country Link
GB (1) GB661170A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798564A (en) * 1952-06-30 1957-07-09 John H Strandell Mechanical controllable pitch propeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798564A (en) * 1952-06-30 1957-07-09 John H Strandell Mechanical controllable pitch propeller

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