CA1013236A - Electrically controlled hydraulic pump with flow and pressure override - Google Patents
Electrically controlled hydraulic pump with flow and pressure overrideInfo
- Publication number
- CA1013236A CA1013236A CA208,701A CA208701A CA1013236A CA 1013236 A CA1013236 A CA 1013236A CA 208701 A CA208701 A CA 208701A CA 1013236 A CA1013236 A CA 1013236A
- Authority
- CA
- Canada
- Prior art keywords
- flow
- hydraulic pump
- electrically controlled
- controlled hydraulic
- pressure override
- 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
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
- 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
- F15B9/02—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 with servomotors of the reciprocatable or oscillatable type
- F15B9/04—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 with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
-
- 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
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40794773A | 1973-10-19 | 1973-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1013236A true CA1013236A (en) | 1977-07-05 |
Family
ID=23614225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA208,701A Expired CA1013236A (en) | 1973-10-19 | 1974-09-09 | Electrically controlled hydraulic pump with flow and pressure override |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5078903A (en) |
| BE (1) | BE821254A (en) |
| CA (1) | CA1013236A (en) |
| DE (1) | DE2449412A1 (en) |
| FR (1) | FR2248429A1 (en) |
| IT (1) | IT1022946B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062265A (en) * | 1989-08-01 | 1991-11-05 | Sundstrand Corporation | Hydromechanical control of differential pressure across a variable displacement hydraulic motor |
| WO2011137199A1 (en) * | 2010-04-29 | 2011-11-03 | Eaton Corporation | Control of a fluid pump assembly |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902318A (en) * | 1974-08-28 | 1975-09-02 | Sperry Rand Corp | Power transmission |
| US4494911A (en) * | 1983-04-29 | 1985-01-22 | General Signal Corporation | Piston pump servo control |
| WO2007097661A1 (en) * | 2006-02-21 | 2007-08-30 | Federal State Unitary Enterprise 'central Research Institute Of Automatics And Hydraulics' (Fsue 'tsniiag') | Electrohydraulic servo drive and hydraulic amplifier |
| RU2467205C1 (en) * | 2011-07-22 | 2012-11-20 | ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "Центральный научно-исследовательский институт автоматики и гидравлики"(ОАО "ЦНИИАГ") | Hydraulic drive power source |
-
1974
- 1974-09-09 CA CA208,701A patent/CA1013236A/en not_active Expired
- 1974-10-17 DE DE19742449412 patent/DE2449412A1/en active Pending
- 1974-10-17 IT IT2851574A patent/IT1022946B/en active
- 1974-10-18 FR FR7435138A patent/FR2248429A1/en active Granted
- 1974-10-18 BE BE149690A patent/BE821254A/en unknown
- 1974-10-18 JP JP49119512A patent/JPS5078903A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062265A (en) * | 1989-08-01 | 1991-11-05 | Sundstrand Corporation | Hydromechanical control of differential pressure across a variable displacement hydraulic motor |
| WO2011137199A1 (en) * | 2010-04-29 | 2011-11-03 | Eaton Corporation | Control of a fluid pump assembly |
| US8435010B2 (en) | 2010-04-29 | 2013-05-07 | Eaton Corporation | Control of a fluid pump assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1022946B (en) | 1978-04-20 |
| FR2248429A1 (en) | 1975-05-16 |
| BE821254A (en) | 1975-02-17 |
| FR2248429B1 (en) | 1978-08-11 |
| JPS5078903A (en) | 1975-06-27 |
| DE2449412A1 (en) | 1975-04-30 |
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