IT979031B - Sistema di controllo - Google Patents
Sistema di controlloInfo
- Publication number
- IT979031B IT979031B IT2029473A IT2029473A IT979031B IT 979031 B IT979031 B IT 979031B IT 2029473 A IT2029473 A IT 2029473A IT 2029473 A IT2029473 A IT 2029473A IT 979031 B IT979031 B IT 979031B
- Authority
- IT
- Italy
- Prior art keywords
- control system
- control
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
- E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
- E01C19/203—Centrifugal spreaders with substantially vertical axis
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0605—Control of flow characterised by the use of electric means specially adapted for solid materials
- G05D7/0611—Control of flow characterised by the use of electric means specially adapted for solid materials characterised by the set value given to the control element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Civil Engineering (AREA)
- Automation & Control Theory (AREA)
- Architecture (AREA)
- General Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Velocity Or Acceleration (AREA)
- Control Of Conveyors (AREA)
- Fertilizing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22593172A | 1972-02-14 | 1972-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT979031B true IT979031B (it) | 1974-09-30 |
Family
ID=22846864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2029473A IT979031B (it) | 1972-02-14 | 1973-02-12 | Sistema di controllo |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4892795A (no) |
AU (1) | AU5288373A (no) |
DE (1) | DE2306867A1 (no) |
FR (1) | FR2196440B1 (no) |
IT (1) | IT979031B (no) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2610692B1 (fr) * | 1987-02-09 | 1989-06-09 | Air Liquide | Vanne de regulation pour gaz |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3395866A (en) * | 1966-03-28 | 1968-08-06 | Fox River Tractor Company | Material spreaders having remote controls |
US3679098A (en) * | 1969-04-21 | 1972-07-25 | Ambac Ind | Vehicular material spreader control apparatus |
-
1973
- 1973-02-09 FR FR7304681A patent/FR2196440B1/fr not_active Expired
- 1973-02-12 IT IT2029473A patent/IT979031B/it active
- 1973-02-13 DE DE19732306867 patent/DE2306867A1/de active Pending
- 1973-02-14 JP JP1754773A patent/JPS4892795A/ja active Pending
- 1973-03-05 AU AU52883/73A patent/AU5288373A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2196440A1 (no) | 1974-03-15 |
DE2306867A1 (de) | 1973-08-23 |
AU5288373A (en) | 1974-09-05 |
JPS4892795A (no) | 1973-12-01 |
FR2196440B1 (no) | 1976-11-05 |
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