US2015514A - Device for the control of motion of movable blades on blade wheels - Google Patents

Device for the control of motion of movable blades on blade wheels Download PDF

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Publication number
US2015514A
US2015514A US12670A US1267035A US2015514A US 2015514 A US2015514 A US 2015514A US 12670 A US12670 A US 12670A US 1267035 A US1267035 A US 1267035A US 2015514 A US2015514 A US 2015514A
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United States
Prior art keywords
blade
blades
blade wheel
steering center
axis
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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 - Lifetime
Application number
US12670A
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English (en)
Inventor
Ehrhart Josef
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.)
Voith Schneider Propeller Co
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Voith Schneider Propeller Co
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Filing date
Publication date
Application filed by Voith Schneider Propeller Co filed Critical Voith Schneider Propeller Co
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    • 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
    • B63H1/04—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction
    • B63H1/06—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades
    • B63H1/08—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades with cyclic adjustment
    • B63H1/10—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades with cyclic adjustment of Voith Schneider type, i.e. with blades extending axially from a disc-shaped rotary body
    • 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
    • B63H1/04—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction
    • B63H1/06—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades
    • B63H1/08—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades with cyclic adjustment
    • B63H1/10—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades with cyclic adjustment of Voith Schneider type, i.e. with blades extending axially from a disc-shaped rotary body
    • B63H2001/105—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction with adjustable vanes or blades with cyclic adjustment of Voith Schneider type, i.e. with blades extending axially from a disc-shaped rotary body with non-mechanical control of individual blades, e.g. electric or hydraulic control

Definitions

  • Figure 3 is a plan vi w d a a a y sh w 15 which material steering center is provided with similar to Fig. 1, but Showing the blades in rods which are connected with the blades so as to Pos on Corresponding to e o d em nt operate or shift the blades, depending upon the of the blade wheel when used as a Propulsion position of the steering center. means of a ship.
  • Figure 4 is a plan view of another embodiment 20 high structure in the center part of such blade also diagrammatically shown; wheels, and in an unsatisfactory distribution of Figure 5 is a diagrammatic representation of forces acting upon the steering center, and also in the movement of the operative parts of a blade,
  • Figure 6 is a perspective view of a practical em- 25 connecting links. bodiment of the invention herein described;
  • Figure 7 is a vertical central cross section of one arranging the connecting means between the of the above embodiments with an electric problades and the steering center substantially in a p n m ns combined h w h; nd
  • a plurality of blades l2 are In an embodiment of the'invention hereinafter suitably supported by blade wheel in in movable 35 shown, each blade is connected with the steering position in respect thereto and the position of center by means of a rod, guided in a linear directhe blades shown in Figure 1 is in zero or tangention, by a guide block rotatably fixed upon the tial position corresponding'to the stop posi- 40 blade wheel or rotor, said guide block determining tion.
  • a guide block rotatably fixed upon the tial position corresponding'to the stop posi- 40 blade wheel or rotor, said guide block determining tion.
  • This invention relates to devices for the control of motion of movable blades on blade wheels in which the axes of the blades are parallel or substantially parallelto the axis of the rotor.
  • the invention further provides specially advantageous means of overcoming certain operative deficiencies which will be pointed out hereinafter.
  • Figure 1 is a plan view diagrammatically shown, of a blade wheel with six blades and'the connecting rods thereon for operating the blades during the rotation of the blade wheel, the blades being shown in their zero or tangential position, or in stop position;
  • the steering center plate I5 is moved'in both dimensions of the radial plane and may take any position in respect thereto.
  • the steering center plate I5 is connected by means of a pivotal connection 2I with a slide rod 22.
  • Each of these slide rods 22 is connected with the blade wheel I0 by a guide block 23, the ends of which engage suitable recesses 24 and 25 in the plates 26 and 21 of the blade wheel.
  • the guide blocks 23 being rotatably held in their recesses, do permit the slide rods 22 to slide therethrough, in a straight line direction.
  • Such plates 26 and 2? form a compartment of relatively small depth, in which the steering center plate I5 and the slide rods 22 and the other parts about to be described are arranged.
  • Each of the slide rods 22 is pivotally connected with links 29 by the connection 30, and the free ends of the links 29 are connected with the blades I2 through the pivotal connection 3
  • the movement of the pivotal point 30 determines the angular position of the blade I2 in respect to a circle 35 shown in dotted lines'in Fig. l, which circle 35 indicates the path of the blades as they rotate.
  • the pivotal connection 30 may be -made in the form of a shear pin easily broken when the strain is too large. Any suitable safety breaking de vice may be utilized.
  • the relative movement between the fork-shaped end 3T and the stud 38 must be such that the largest possible movement of the steering plate I5 in any direction in its plane at right angles to the axis II will be permitted.
  • the point moving in a straight line is fixed to the blade wheel, whereby a periodic change of the speed ratio between the angular 50 movements of the rod 22 and the blade lever 32 takes place and in such a manner that the positions of the blade at their greatest throw follow quicker upon each other in point of time than those of the slide rod 22.
  • the diagram shown in 65 Figure 5 shows in diagrammatic form these advantageous relations.
  • the change in the speed ratio comes exactly into being in that the free length 40 of the slide rod 22 changes itself periodically so that the velocity of the point of 60 the pivotal connection 30 becomes in certain positions of the device particularly large which, in
  • the compact construction of the device for the control of motion for movable blades on blade wheels described hereinabove permits its combination with an electric motor, and, enables the assembling structure to be built of specially strong elements to correspond with the demands made by large diameter structures.
  • pellers it has been customary heretofore to use a horizontal shaft along the length 01' the ship, and connect this shaft with the vertical shaft of the blade wheel propeller. In other cases where a vertical shaft was dispensed with, the horizontal shaft was connected by gears to the rotor of the propeller laterally of the axis of the propeller.
  • An embodiment of this form is shown in my copending application, Serial No. 716,018 filed March 17, 1934.
  • the present form of compact blade actuating mechanism enables electrical mechanism to be installed, so as to drive the blade wheel in a very simple manner.
  • FIG 7 an embodiment of this invention is illustrated, in which the blade wheel l0, blades [2, blade shifting mechanism for the blades generally indicated by 45, steering center operating mechanism generally indicated by 46, -a servomotor ll of known construction to operate the lever 46, are shown.
  • the blade wheel housing 48 is provided with an extension 49, to which is se-- cured anopen electric rotor ring 5ll.
  • is secured to the stationary housing 52. Where electric current obtained from a suitable source of supply, is used to energize the coils of the electric rotor and stator, the ring it is rotated, and in consequence the blade wheel is rotated.
  • the propeller blade wheel has no shaft orits equivalent or any driving means, since the peripheral electric rotor and stator rings exert the propelling force to rotate the blade wheel. Either direct or alternating current can-be used.
  • This electrical installation is comparatively simple since the blade wheel rotor rotates with constant speed which simplifies the wiring and switchboard arrangement.
  • the stationary housing 52 extends downwardly into a bell-shaped portion 53 which supports suitable anti-friction bearings, the rotatable blade wheel which rotates by the aid of anti-friction bearings 55 around a central hub 55, which is supported by the frames 56.
  • Theonly operative part of the mechanism for shifting the blades is the lever 48 for shifting the steering center plate,which lever in turn is operated in the embodirnent shown by the servomotor- 41.
  • This servomotor 47 and part of the lever 46 are disposed within the electrical stator ring 5
  • the open interior of' the electrical rings permits the steering mechanism to be located therein, whereby the entire device as described is self-contained and may be installed with simplicity of operation, having all the advantages of electrical operation.
  • a device for the control of motion of movable blades on blade-wheels in which the blade In blade wheel pro-.
  • blade controlling means for a blade wheel having blades including a steering center plate rotating with said blade wheel and shiftable in any direction in a plane perpendicular ii to the axis of the blade wheel from a position concentric and corresponding with zero pitch of the blades to a position eccentric to said axis, and connecting means between said steering center plate and each blade including a rod for each 10 blade pivoted to said steering center plate, guide means for said rod for guiding the same in straight line movement for controlling the angular motion of the blade.
  • a device for the control of motion of mov- 15 necting means between said steering center plate 26 and each biade including a slide rod for each blade pivoted to said steering center plate and guide means for said rod for guiding the same in straight line movement by said blade wheel, and
  • control means for a blade wheel having blades including a steering center plate. rotating with said blade wheel and shiitable in any direction in aplane perpendicular to the axis of the blade wheel from a position concentric 4o and corresponding withhero pitch of the blades to a position eccentric to said axis, connecting means between said steering center plate and each blade including a rod for each blade pivoted to said steeringpenter plate and guide means for 45 guiding the rod in straight line movement, said guide means comprising a guide block rotatably mounted in said blade wheel for guiding the slide rod in straight linemovement, and a link pivoted at one end to the free end of said slide 5 rod and pivoted atits other end to one of said blades.
  • a device for the control of motion or movable blades on blade wheels in which the blade axes are substantially parallel to the axis of the 55 blade wheel, blade controlling means for a blade wheel having blades, including a steering center plate rotating with said blade wheel and shiftable in any direction in a plane perpendicular to the axis of the blade wheel from a position con- 0 centric and corresponding with zero pitch of the blades to a position eccentric to said axis, connecting means between said steering cen er plate and each blade including a rod for each blade pivoted to said steering center'plate and guide means for guiding the rod in straight line move- A ment, said guide means comprising a guide block for guiding said rod, said guide block being disposed in respect to the inner end of said rod a distance oi one-half to one-third of the entire op- 7 erative length of said rod.
  • a device for the control of motion or movable blades on blade wheels in which the blade axes are substantially parallel to the axis of the blade wheel, blade controlling means for a blade 75 wheel having blades, including a steering center plate rotating with said blade wheel and shiftable in any direction in a plane perpendicular to the axis of the blade wheel from a position concentrio and corresponding with zero pitch of the blades to a position eccentric to said axis, connecting means between said steering center plate and each blade including a rod for each blade pivoted to said steering center plate and guide means for guiding said rod in straight line movement, and means for securing the steering center plate to said blade wheel, including a bar secured to said plate and to the blade wheel.
  • a device for the control of motion of movable blades on blade wheels in which the blade axes are substantially parallel to the axis of the blade wheel, blade controlling means for a blade wheel having blades, including a steering center plate rotating with said blade wheel and shiftable in any direction in a plane perpendicular to the axis of the blade wheel from a position concentric and corresponding with zero pitch of the blades to a position eccentric to said axis, connecting means between said steering center plate and each blade including a rod for each blade pivoted to said steering center plate and guide means for guiding said rod in straight-line move ment, and means for securing the steering center plate to said blade wheel, including a bar secured 'to said plate and to the blade wheel, said bar blades to a position eccentric to said axis, connecting means between said steering center plate and each blade including a rod, for each blade pivoted to said steering center plate and guide means for guiding said rod in straight line movement, and means for securing the steering center plate to said blade wheel, including a bar secured
  • a device for thecontrol of motion of movable blades on blade wheels in which the blade axes are substantially parallel with the blade wheel axis, comprising unitary structure consisting of a steering center plate movable in a plane perpendicular to the axis of the blade wheel, and rotatable with the blade wheel, sliding rods pivoted to said plate, guide means for guiding links disposed between the free ends of said slid- 9.
  • a device for the control of motion of mov- 5 able blades on blade wheels, in which the blade axes are substantially parallel with the blade wheel axis, comprising unitary structure consisting of a steering center plate movable in a plane perpendicular to the axis of the blade wheel, 10 and rotatable with the blade wheel, sliding rods pivoted to said plate, guide means for guiding said sliding rods for movement in straight line direction by the said plate, and having means adapted to be connected with the blade wheel, and to be 15 rotatable therewith, blade moving means adapted to be attached to the blades, links disposed between the free ends of said sliding rods and the blade moving means of said parts, the plate, the sliding rods, the blade moving means and the 20 links being disposed substantially in one plane, and fastening means for rotating all of said parts with said blade wheel.
  • a device for the control of motion of movable blades on blade wheels in which the blade 25 axes are substantially parallel with the blade wheel axis, comprising unitary structure consisting of a steering center plate movable in a plane perpendicular to the axis of the blade wheel, and rotatable with the blade wheel, sliding rods pivot- 30 ed to said plate, guide means for guiding said sliding rods for movement in straight line direction by the said plate, and having means adapted to be connected with the blade wheel, and to be rotatable therewith, blade moving means adapted 35 to be attached to the blades, links disposed between the free ends of said sliding rods and the blade moving means of said parts, the plate, the sliding rods, the blade moving means and the links being disposed substantially in one plane, 40 and fastening means for rotating all of said parts with said blade wheel, the said means adapted to be connected to the blade wheel being disposed along the length of the sliding rods at about onethird or one-half of their lengths, and the links 45 being of
  • a device for the control of motion of movable blades on blade wheels in which the blade axes are substantially parallel to the axis of the blade wheel, including a steer- 5 ing center plate movable with said blade wheel and shiftable in any direction in a plane perpendicular to the axis of the blade wheel from a position concentric to eccentric to said axis, connect ing means between said steering center plate and 55 4 on said housing, an electrical open ring rotor secured to said flange, a stationary housing, a flange on said stationary housing,-an electrical open ring stator secured to said flange of the stationary housing, and means for operating the steering center plate arranged within the open 65 space of said electrical ring rotor and stator.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Steering Controls (AREA)
  • Hydraulic Turbines (AREA)
  • Gear Transmission (AREA)
  • Harvester Elements (AREA)
US12670A 1934-03-26 1935-03-23 Device for the control of motion of movable blades on blade wheels Expired - Lifetime US2015514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE638318T 1934-03-26

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US (1) US2015514A (de)
AT (1) AT146547B (de)
DE (1) DE638318C (de)
DK (1) DK51513C (de)
GB (1) GB438317A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850104A (en) * 1955-07-28 1958-09-02 Voith Gmbh J M Blade wheel propeller with removable blades
US2950765A (en) * 1956-12-27 1960-08-30 Pacific Car & Foundry Co Balanced lift vertical axis propellers
US2955661A (en) * 1958-01-23 1960-10-11 Pacific Car & Foundry Co Polar coordinate control for cycloidal propellers
US2978036A (en) * 1956-01-11 1961-04-04 Voith Gmbh J M Control device for blades of cycloidal propellers
US3241618A (en) * 1963-06-28 1966-03-22 Voith Gmbh J M Rotary blade propeller with protection against overload
US3690787A (en) * 1970-05-16 1972-09-12 Voith Gmbh J M Apparatus for indicating the position of the control center for the blades of a rotating blade propeller
WO1980000991A1 (en) * 1978-11-14 1980-05-15 Schelde Nv Hydrodynamic machine
WO2000001575A3 (en) * 1998-07-03 2000-03-09 Ralph Peter Steven Bailey Multi axis marine propulsion system
US20060199514A1 (en) * 2004-11-29 2006-09-07 Sony Corporation Cooling fan and image display apparatus
US10014084B2 (en) 2015-05-12 2018-07-03 Arc Saw Technologies, Llc Systems and methods for nuclear reactor vessel segmenting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5462406A (en) * 1993-08-19 1995-10-31 Vitron Systems Inc. Cyclodial propulsion system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850104A (en) * 1955-07-28 1958-09-02 Voith Gmbh J M Blade wheel propeller with removable blades
US2978036A (en) * 1956-01-11 1961-04-04 Voith Gmbh J M Control device for blades of cycloidal propellers
US2950765A (en) * 1956-12-27 1960-08-30 Pacific Car & Foundry Co Balanced lift vertical axis propellers
US2955661A (en) * 1958-01-23 1960-10-11 Pacific Car & Foundry Co Polar coordinate control for cycloidal propellers
US3241618A (en) * 1963-06-28 1966-03-22 Voith Gmbh J M Rotary blade propeller with protection against overload
US3690787A (en) * 1970-05-16 1972-09-12 Voith Gmbh J M Apparatus for indicating the position of the control center for the blades of a rotating blade propeller
WO1980000991A1 (en) * 1978-11-14 1980-05-15 Schelde Nv Hydrodynamic machine
WO2000001575A3 (en) * 1998-07-03 2000-03-09 Ralph Peter Steven Bailey Multi axis marine propulsion system
US20060199514A1 (en) * 2004-11-29 2006-09-07 Sony Corporation Cooling fan and image display apparatus
US7518864B2 (en) * 2004-11-29 2009-04-14 Sony Corporation Cooling fan and image display apparatus
US10014084B2 (en) 2015-05-12 2018-07-03 Arc Saw Technologies, Llc Systems and methods for nuclear reactor vessel segmenting
US10994354B2 (en) 2015-05-12 2021-05-04 Arc Saw Technologies, Llc Slitted sandwich insulated arc saw blade having a translational rail assmbly and direct coupling to a rotational pivot pin

Also Published As

Publication number Publication date
DE638318C (de) 1936-11-13
DK51513C (da) 1936-04-14
AT146547B (de) 1936-07-10
GB438317A (en) 1935-11-14

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