DE69930051D1 - Rückkoppelungsregelkreis für einen Hydromotor variabler Drehzahl - Google Patents
Rückkoppelungsregelkreis für einen Hydromotor variabler DrehzahlInfo
- Publication number
- DE69930051D1 DE69930051D1 DE69930051T DE69930051T DE69930051D1 DE 69930051 D1 DE69930051 D1 DE 69930051D1 DE 69930051 T DE69930051 T DE 69930051T DE 69930051 T DE69930051 T DE 69930051T DE 69930051 D1 DE69930051 D1 DE 69930051D1
- Authority
- DE
- Germany
- Prior art keywords
- control circuit
- feedback control
- hydraulic motor
- variable speed
- speed hydraulic
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
- F03C1/0447—Controlling
- F03C1/0457—Controlling by changing the effective piston stroke
- F03C1/046—Controlling by changing the effective piston stroke by changing the excentricity of one element relative to another element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
- F04B49/123—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
- F04B49/128—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element by changing the eccentricity of the cylinders, e.g. by moving a cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/06—Control
- F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/10—Control of working-fluid admission or discharge peculiar thereto
- F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
- F01B3/104—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by turning the valve plate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
- Valve Device For Special Equipments (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Hydraulic Motors (AREA)
- Fluid-Pressure Circuits (AREA)
- Nozzles (AREA)
- Control Of Electric Motors In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1998MI001719A IT1301862B1 (it) | 1998-07-24 | 1998-07-24 | Dispositivo di regolazione dell'anticipo di motori/pompe di tipoidraulico. |
ITMI981719 | 1998-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69930051D1 true DE69930051D1 (de) | 2006-04-27 |
DE69930051T2 DE69930051T2 (de) | 2006-09-28 |
Family
ID=11380512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69930051T Expired - Fee Related DE69930051T2 (de) | 1998-07-24 | 1999-07-15 | Rückkoppelungsregelkreis für einen Hydromotor variabler Drehzahl |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0974752B1 (de) |
AT (1) | ATE319006T1 (de) |
DE (1) | DE69930051T2 (de) |
IT (1) | IT1301862B1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2052472A (en) * | 1935-02-04 | 1936-08-25 | Jack Moody | Fluid engine |
JPS4820082Y1 (de) * | 1970-09-24 | 1973-06-09 | ||
US4347778A (en) * | 1979-08-17 | 1982-09-07 | Murray Jerome L | Reversible fluid unit |
IT1266639B1 (it) * | 1993-10-29 | 1997-01-09 | Riva Calzoni Spa | Gruppo rotante di distribuzione di fluido in pressione particolarmente per motori idraulici a doppia serie di propulsori agenti in controfase |
-
1998
- 1998-07-24 IT IT1998MI001719A patent/IT1301862B1/it active IP Right Grant
-
1999
- 1999-07-15 DE DE69930051T patent/DE69930051T2/de not_active Expired - Fee Related
- 1999-07-15 AT AT99202332T patent/ATE319006T1/de not_active IP Right Cessation
- 1999-07-15 EP EP99202332A patent/EP0974752B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE319006T1 (de) | 2006-03-15 |
EP0974752A2 (de) | 2000-01-26 |
EP0974752B1 (de) | 2006-03-01 |
ITMI981719A1 (it) | 2000-01-24 |
IT1301862B1 (it) | 2000-07-07 |
EP0974752A3 (de) | 2000-10-04 |
ITMI981719A0 (it) | 1998-07-24 |
DE69930051T2 (de) | 2006-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |