IT979031B - CONTROL SYSTEM - Google Patents
CONTROL SYSTEMInfo
- 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
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 (en) | 1974-09-30 |
Family
ID=22846864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2029473A IT979031B (en) | 1972-02-14 | 1973-02-12 | CONTROL SYSTEM |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4892795A (en) |
AU (1) | AU5288373A (en) |
DE (1) | DE2306867A1 (en) |
FR (1) | FR2196440B1 (en) |
IT (1) | IT979031B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2610692B1 (en) * | 1987-02-09 | 1989-06-09 | Air Liquide | REGULATION VALVE FOR GAS |
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/en active
- 1973-02-13 DE DE19732306867 patent/DE2306867A1/en 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 |
---|---|
DE2306867A1 (en) | 1973-08-23 |
FR2196440B1 (en) | 1976-11-05 |
FR2196440A1 (en) | 1974-03-15 |
AU5288373A (en) | 1974-09-05 |
JPS4892795A (en) | 1973-12-01 |
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