FR2271429A1 - - Google Patents
Info
- Publication number
- FR2271429A1 FR2271429A1 FR7417084A FR7417084A FR2271429A1 FR 2271429 A1 FR2271429 A1 FR 2271429A1 FR 7417084 A FR7417084 A FR 7417084A FR 7417084 A FR7417084 A FR 7417084A FR 2271429 A1 FR2271429 A1 FR 2271429A1
- Authority
- FR
- France
- 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.)
- Granted
Links
Classifications
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/65—Methods of control of the load sensing pressure
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2564—Plural inflows
- Y10T137/2572—One inflow supplements another
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Pipeline Systems (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7417084A FR2271429B1 (fr) | 1974-05-16 | 1974-05-16 | |
AR25876375A AR207041A1 (es) | 1974-05-16 | 1975-01-01 | Circuito de control de fluido bajo presion |
US05/576,049 US3968811A (en) | 1974-05-16 | 1975-05-09 | Pressurized fluid control circuit |
GB2015375A GB1494844A (en) | 1974-05-16 | 1975-05-13 | Fluid control circuits |
BR7503766A BR7502960A (pt) | 1974-05-16 | 1975-05-14 | Circuito de comando hidraulico |
ES437702A ES437702A1 (es) | 1974-05-16 | 1975-05-14 | Circuito de control de fluido bajo presion. |
IT2334475A IT1038133B (it) | 1974-05-16 | 1975-05-14 | Circuito idraulico di tipo perfezionato |
DE2521533A DE2521533C2 (de) | 1974-05-16 | 1975-05-14 | Druckmittelbetätigte Schaltungseinrichtung |
BE2054344A BE829034A (fr) | 1974-05-16 | 1975-05-14 | Circuit hydraulique comportant au moins deux sources de fluide sous pression et une valve de sequence |
JP5682375A JPS50155879A (fr) | 1974-05-16 | 1975-05-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7417084A FR2271429B1 (fr) | 1974-05-16 | 1974-05-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2271429A1 true FR2271429A1 (fr) | 1975-12-12 |
FR2271429B1 FR2271429B1 (fr) | 1978-03-31 |
Family
ID=9138951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7417084A Expired FR2271429B1 (fr) | 1974-05-16 | 1974-05-16 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3968811A (fr) |
JP (1) | JPS50155879A (fr) |
AR (1) | AR207041A1 (fr) |
BE (1) | BE829034A (fr) |
BR (1) | BR7502960A (fr) |
DE (1) | DE2521533C2 (fr) |
ES (1) | ES437702A1 (fr) |
FR (1) | FR2271429B1 (fr) |
GB (1) | GB1494844A (fr) |
IT (1) | IT1038133B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3132342C2 (de) * | 1981-08-17 | 1987-01-29 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hydrostatische Hilfskraft-Lenkeinrichtung |
US5228289A (en) * | 1983-06-29 | 1993-07-20 | Peter Norton | Plural hydraulic pump system with unloading valve |
AU3154684A (en) * | 1983-06-29 | 1985-01-25 | Norton, P. | Plural hydraulic pump system with automatic displacement control |
DE3419689C2 (de) * | 1984-05-25 | 1986-11-27 | Mannesmann Rexroth GmbH, 8770 Lohr | Vorrichtung zur Druckmittelversorgung eines Hydrozylinders |
DE3443692A1 (de) * | 1984-11-30 | 1986-06-12 | Wessel-Hydraulik Günther Wessel, 2940 Wilhelmshaven | In zwei richtungen wirkendes bremsventil mit einem ventilschieber |
US4832579A (en) * | 1985-01-22 | 1989-05-23 | Peter Norton | Plural hydraulic pump system with automatic displacement control and pressure relief valve |
JPH01150202U (fr) * | 1988-04-08 | 1989-10-17 | ||
DE4129508C2 (de) * | 1991-09-05 | 1994-12-15 | Rexroth Mannesmann Gmbh | Ventilanordnung zur Versorgung eines Verbrauchers aus zwei Druckmittelquellen |
DE102008059298A1 (de) * | 2007-12-19 | 2009-06-25 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydrauliksystem |
JP7257181B2 (ja) * | 2019-02-25 | 2023-04-13 | ナブテスコ株式会社 | 駆動装置及び建設機械 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1982711A (en) * | 1931-10-19 | 1934-12-04 | Harry F Vickers | Combined rapid traverse and slow traverse hydraulic system |
US3587237A (en) * | 1969-05-23 | 1971-06-28 | Automatic Radio Mfg Co | Constant speed drive |
US3868821A (en) * | 1974-03-20 | 1975-03-04 | Tyrone Hydraulics | Automatic pump control system |
-
1974
- 1974-05-16 FR FR7417084A patent/FR2271429B1/fr not_active Expired
-
1975
- 1975-01-01 AR AR25876375A patent/AR207041A1/es active
- 1975-05-09 US US05/576,049 patent/US3968811A/en not_active Expired - Lifetime
- 1975-05-13 GB GB2015375A patent/GB1494844A/en not_active Expired
- 1975-05-14 ES ES437702A patent/ES437702A1/es not_active Expired
- 1975-05-14 DE DE2521533A patent/DE2521533C2/de not_active Expired
- 1975-05-14 IT IT2334475A patent/IT1038133B/it active
- 1975-05-14 BR BR7503766A patent/BR7502960A/pt unknown
- 1975-05-14 BE BE2054344A patent/BE829034A/fr not_active IP Right Cessation
- 1975-05-15 JP JP5682375A patent/JPS50155879A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3968811A (en) | 1976-07-13 |
ES437702A1 (es) | 1977-01-16 |
IT1038133B (it) | 1979-11-20 |
BR7502960A (pt) | 1976-03-23 |
GB1494844A (en) | 1977-12-14 |
AR207041A1 (es) | 1976-09-09 |
JPS50155879A (fr) | 1975-12-16 |
FR2271429B1 (fr) | 1978-03-31 |
DE2521533A1 (de) | 1975-11-27 |
DE2521533C2 (de) | 1986-09-18 |
BE829034A (fr) | 1975-09-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |