EP0200785A1 - Procede et appareil de reglage des pales d'une helice a pales variables et a commande hydraulique - Google Patents
Procede et appareil de reglage des pales d'une helice a pales variables et a commande hydrauliqueInfo
- Publication number
- EP0200785A1 EP0200785A1 EP19860900089 EP86900089A EP0200785A1 EP 0200785 A1 EP0200785 A1 EP 0200785A1 EP 19860900089 EP19860900089 EP 19860900089 EP 86900089 A EP86900089 A EP 86900089A EP 0200785 A1 EP0200785 A1 EP 0200785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- setpoint
- propeller
- difference
- function
- slide
- 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.)
- Withdrawn
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/16—Systems essentially having two or more interacting servomotors, e.g. multi-stage
-
- 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
Definitions
- the invention relates to a method for adjusting the propeller blades of a hydraulically operated adjusting propeller, in which the hydraulic medium under pressure as a function of a setpoint adjustable by a setpoint generator via a control slide, in particular an electromagnetically actuated proportional slide, and one a sleeve surrounding a propeller shaft is fed to an adjusting cylinder, the control slide being adjusted as a function of a difference between the setpoint and actual value in the sense of reducing this difference.
- the invention relates to a one-piece device for carrying out the method with a control slide which, depending on the output signal of a comparator comparing the setpoint and actual value of the angular position of the propeller blades, is adjusted proportionally to this signal by a controller.
- the deviations are further increased when using proportional actuators which can be actuated electromagnetically, since these have an overlap of the control surfaces of the piston valve relative to the control channels, such that one control channel is not opened immediately when the other is closed and vice versa, but only after a path of the slide piston corresponding to the overlap.
- the invention has for its object to provide a method and an adjusting device which allow a much more precise correspondence of the actual value with the target value compared to the prior art.
- Fig. 1 is a circuit diagram of a mechanical-hydraulic adjusting device
- Fig. 2 is a circuit diagram of an electro-hydraulic adjusting device.
- the adjusting device shown in FIG. 1 is used for the angular adjustment of the propeller blades 1 of an adjusting propeller 2, in the hub 3 of which there is an adjusting cylinder 4 with a piston 5 axially movable therein.
- the hub 3 is fastened to a propeller shaft 6, via which it is driven by a motor, not shown.
- a control rod 7 In a bore of the propeller shaft 6 there is a control rod 7, which channels 8, 10 indicated by dashed lines for the supply of the hydraulic medium in one of the cylinder spaces 11, 12 and its derivation from the other whose has.
- the hydraulic medium is supplied from a feed device (not shown) via a control slide 13 and a sleeve 14 surrounding the shaft 6.
- the control slide has a slide housing 15, in which a spool 16 with two control surfaces 17, 18 is movable.
- the control surfaces 17, 18 interact with control channels 20, 21. Between the control surfaces 20, 21 there is a recess 22, in the area of which there is a recess in the housing 15
- Inlet line 23 for hydraulic medium under pressure opens.
- An overlap occurs in the control slide 13 in that the distance A between the control edges of the slide piston is smaller than the distance B between the control edges of the control channels 20, 21.
- control channels 20, 21 of the control slide 13 are connected by lines 24, 25 to connecting channels 26, 27 of the sleeve 14.
- the control rod 7 is provided with recesses 28 and 30, into which the connecting channels 8, 10 open and which at the same time allow the control rod 7 to move axially relative to the sleeve 14.
- a sleeve 31 is slidably arranged, which is firmly connected to the control rod 7 by a pin 31 ', which is carried out through slots 6' in the shaft 6.
- the sleeve 37 has a groove 32 into which pins 33 of a semicircular bracket 34 engage.
- the bracket 34 is fastened to a lever 35 which serves to set the desired value of the angle of the propeller blades, as is indicated by a scale 36.
- the lever 35 is connected by a hinge 37 to the rod 38 of the spool 40 of a spool 41, which is on a two-armed Lever 42 is articulated, which is connected to the spool 16 of the control slide 13.
- the piston rod 43 of an actuating piston 44 is articulated on the other arm of the two-arm lever 42 and is movable in a cylinder 45.
- cylinder 45 is controlled by piston slide 41.
- the lever 35 is adjusted accordingly along the scale 36.
- the slide piston 16 is moved in the corresponding direction in the housing 15.
- the adjusting piston 5 would move into the desired position and move the control rod 7 in such a way that the linkage 38, 42 brings the spool 16 into a closing position in which the control surfaces 17, 18 close the control channels 20, 21.
- this position cannot be reached.
- the sleeve 31 therefore does not come into the position corresponding to the actual value, but rather into a position which deviates from it.
- the slide piston 40 is thereby moved out of its position and actuates the piston 44 in the cylinder 45 such that the error is compensated for.
- the spool of the control slide 13 is actuated by an electromagnet 50, the armature 51 of which is under the influence of a spring 52.
- the deflection of the slide piston 16 takes place proportionally as a function of the current intensity supplied to the electromagnet 50.
- a comparison element 53 is provided, which compares an actual value taken from the sleeve 31 with the setpoint value 54 set.
- the output signal of the comparator 53 is fed to the electromagnet 50 via a proportional controller 55.
- the output signal of the comparator 53 is also fed to an integral controller 56, the output signal of which is combined in an adder 57 with the signal of the controller 55.
- the effect is the same as for the device according to FIG. 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Un dispositif de réglage comprend un tiroir de distribution (13) ajusté proportionnellement en fonction du signal de sortie d'un élément comparateur (53). Un régulateur intégral (56) aide à régler le tiroir de distribution (13) en fonction de la différence existante entre une valeur de consigne et une valeur réelle.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH5483/84 | 1984-11-17 | ||
CH548384 | 1984-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0200785A1 true EP0200785A1 (fr) | 1986-11-12 |
Family
ID=4294347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860900089 Withdrawn EP0200785A1 (fr) | 1984-11-17 | 1985-11-15 | Procede et appareil de reglage des pales d'une helice a pales variables et a commande hydraulique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0200785A1 (fr) |
DE (1) | DE3502964A1 (fr) |
WO (1) | WO1986002901A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2461784A (en) * | 2008-07-15 | 2010-01-20 | Hamilton Sundstrand Corp | Propeller blade pitch control system comprising a hydraulic transfer bearing within a propeller gearbox |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893989A (en) * | 1989-03-07 | 1990-01-16 | United Technologies Corporation | Variable propeller system incorporating a forward transfer bearing |
DE502006008187D1 (de) | 2005-08-05 | 2010-12-09 | Peter A Mueller | Wasserfahrzeugantrieb |
KR100836637B1 (ko) | 2007-03-29 | 2008-06-10 | 주식회사 디.에스.케이 | 가변피치프로펠러 유압분배기(od) 박스 |
EP2331398B1 (fr) * | 2008-09-22 | 2017-05-17 | Caterpillar Propulsion Production AB | Système d hélice réglable et procédé de distribution de fluide à ce système d hélice réglable ou à partir de ce dernier |
ES2376569B2 (es) * | 2009-03-13 | 2012-07-18 | Gamesa Innovation & Technology S.L. | Método y útil para la fijación del tubo hueco de transmisión de energía al eje principal de la multiplicadora. |
CN104071322B (zh) * | 2014-05-22 | 2016-07-06 | 上海利屹恩船舶科技有限公司 | 自润滑可调距桨及其可调距桨液压及润滑系统 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2503447A (en) * | 1946-03-14 | 1950-04-11 | Edward M May | Follow-up type power amplifier |
CH279159A (de) * | 1946-10-07 | 1951-11-15 | Johannes Liaaen Nils | Propellerverstelleinrichtung mit Servomotor für Schiffe, Pumpen oder Turbinen. |
US2812026A (en) * | 1954-01-18 | 1957-11-05 | Sperry Rand Corp | Variable pitch propeller control system |
US2886009A (en) * | 1955-11-29 | 1959-05-12 | Northrop Aircraft Inc | Electro-hydraulic servo assembly with fail-safe structure |
US3003475A (en) * | 1959-06-01 | 1961-10-10 | Hagan Chemicals & Controls Inc | Pneumatic positioning controller |
US3487750A (en) * | 1967-12-01 | 1970-01-06 | Bell Aerospace Corp | Positioning system having input signal integrator and load pressure feedback |
GB1478674A (en) * | 1974-07-03 | 1977-07-06 | Lips Bv | Feathering controllable pitch propeller |
FR2501392A1 (fr) * | 1981-03-04 | 1982-09-10 | Mouren Jacques | Dispositif pour la commande et la regulation en position lineaire d'un arbre tournant |
-
1985
- 1985-01-30 DE DE19853502964 patent/DE3502964A1/de active Granted
- 1985-11-15 WO PCT/EP1985/000623 patent/WO1986002901A1/fr not_active Application Discontinuation
- 1985-11-15 EP EP19860900089 patent/EP0200785A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO8602901A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2461784A (en) * | 2008-07-15 | 2010-01-20 | Hamilton Sundstrand Corp | Propeller blade pitch control system comprising a hydraulic transfer bearing within a propeller gearbox |
GB2461784B (en) * | 2008-07-15 | 2011-03-02 | Hamilton Sundstrand Corp | Propeller blade pitch control system comprising a hydraulic transfer bearing within a propeller gearbox |
Also Published As
Publication number | Publication date |
---|---|
DE3502964C2 (fr) | 1987-10-29 |
WO1986002901A1 (fr) | 1986-05-22 |
DE3502964A1 (de) | 1986-05-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19860627 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE GB IT NL |
|
17Q | First examination report despatched |
Effective date: 19870605 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19870812 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WUEHRER, WOLFGANG Inventor name: LORENZ, PETER |