FR2384175A1 - Remote constant hydraulic pressure control - has motor servo controlled by valve actuated by motor inlet-outlet pressure differential - Google Patents
Remote constant hydraulic pressure control - has motor servo controlled by valve actuated by motor inlet-outlet pressure differentialInfo
- Publication number
- FR2384175A1 FR2384175A1 FR7707560A FR7707560A FR2384175A1 FR 2384175 A1 FR2384175 A1 FR 2384175A1 FR 7707560 A FR7707560 A FR 7707560A FR 7707560 A FR7707560 A FR 7707560A FR 2384175 A1 FR2384175 A1 FR 2384175A1
- Authority
- FR
- France
- Prior art keywords
- motor
- pressure
- inlet
- valve
- control
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
- F16H61/433—Pump capacity control by fluid pressure control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H2059/6838—Sensing gearing status of hydrostatic transmissions
- F16H2059/6861—Sensing gearing status of hydrostatic transmissions the pressures, e.g. high, low or differential pressures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Servomotors (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The hydraulic constant pressure control is intended for automatic remote control of an hydraulic motor (7). It comprises a control valve (1) with two outlets (2, 3) connected to the two ends of a servo-cylinder (6) of the motor. The valve (1) is a sliding valve whose sliding member is rigidly or resiliently coupled to the piston (8) of an actuating cylinder (9). The cylinder (9) is connected to a control pressure inlet line (10) and an outlet line (11) and the piston (8) is spring-loaded (12) and pressure-loaded on the same side by a plunger (13). The plunger is actuated by the pressure in a pressure line (14) which is connected to the inlet (15) and outlet (16) of the motor (7) via a double-acting non-return valve (27).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707560A FR2384175A1 (en) | 1977-03-14 | 1977-03-14 | Remote constant hydraulic pressure control - has motor servo controlled by valve actuated by motor inlet-outlet pressure differential |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707560A FR2384175A1 (en) | 1977-03-14 | 1977-03-14 | Remote constant hydraulic pressure control - has motor servo controlled by valve actuated by motor inlet-outlet pressure differential |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2384175A1 true FR2384175A1 (en) | 1978-10-13 |
FR2384175B3 FR2384175B3 (en) | 1980-01-18 |
Family
ID=9188057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7707560A Granted FR2384175A1 (en) | 1977-03-14 | 1977-03-14 | Remote constant hydraulic pressure control - has motor servo controlled by valve actuated by motor inlet-outlet pressure differential |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2384175A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2594928A1 (en) * | 1985-11-05 | 1987-08-28 | Hydromatik Gmbh | STEERING DEVICE FOR HYDRAULIC TRANSMISSION |
-
1977
- 1977-03-14 FR FR7707560A patent/FR2384175A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2594928A1 (en) * | 1985-11-05 | 1987-08-28 | Hydromatik Gmbh | STEERING DEVICE FOR HYDRAULIC TRANSMISSION |
Also Published As
Publication number | Publication date |
---|---|
FR2384175B3 (en) | 1980-01-18 |
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