IT1010411B - HYDRAULIC VALVE AND INCORPORATING HYDRAULIC SYSTEM THAT VALVE - Google Patents

HYDRAULIC VALVE AND INCORPORATING HYDRAULIC SYSTEM THAT VALVE

Info

Publication number: IT1010411B
Authority: IT; Italy
Prior art keywords: valve; hydraulic; incorporating; hydraulic system; incorporating hydraulic
Prior art date: 1973-05-04

Application number

IT2228574A

Other languages

Italian (it)

Original Assignee

Sperry Rand Ltd

Priority date (The priority date 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 date listed.)

1973-05-04

Filing date

1974-05-03

Publication date

1977-01-10

1974-05-03 Application filed by Sperry Rand Ltd filed Critical Sperry Rand Ltd

1977-01-10 Application granted granted Critical

1977-01-10 Publication of IT1010411B publication Critical patent/IT1010411B/en

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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
- 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
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential 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
- F15B2211/515—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
- F15B2211/50—Pressure control
- F15B2211/57—Control of a differential pressure

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Safety Valves (AREA)
Fluid-Pressure Circuits (AREA)
Control Of Positive-Displacement Pumps (AREA)

IT2228574A 1973-05-04 1974-05-03 HYDRAULIC VALVE AND INCORPORATING HYDRAULIC SYSTEM THAT VALVE IT1010411B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2120073A GB1474686A (en)	1973-05-04	1973-05-04	Hydraulic valves and hydraulic systems

Publications (1)

Publication Number	Publication Date
IT1010411B true IT1010411B (en)	1977-01-10

Family

ID=10158873

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT2228574A IT1010411B (en)	1973-05-04	1974-05-03	HYDRAULIC VALVE AND INCORPORATING HYDRAULIC SYSTEM THAT VALVE

Country Status (6)

Country	Link
JP (1)	JPS5031432A (en)
DE (1)	DE2420891A1 (en)
FR (1)	FR2324962A1 (en)
GB (1)	GB1474686A (en)
IT (1)	IT1010411B (en)
SE (1)	SE406796B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5763872A (en) *	1980-10-06	1982-04-17	Nec Corp	Semiconductor device
EP0137275B1 (en) *	1983-08-29	1989-05-03	Shin Caterpillar Mitsubishi Ltd.	Flow control valve

1973
- 1973-05-04 GB GB2120073A patent/GB1474686A/en not_active Expired
1974
- 1974-04-30 DE DE19742420891 patent/DE2420891A1/en active Pending
- 1974-05-02 JP JP49050168A patent/JPS5031432A/ja active Pending
- 1974-05-03 SE SE7405945A patent/SE406796B/en unknown
- 1974-05-03 FR FR7415370A patent/FR2324962A1/en not_active Withdrawn
- 1974-05-03 IT IT2228574A patent/IT1010411B/en active

Also Published As

Publication number	Publication date
JPS5031432A (en)	1975-03-27
GB1474686A (en)	1977-05-25
FR2324962A1 (en)	1977-04-15
SE406796B (en)	1979-02-26
DE2420891A1 (en)	1974-11-21

Publication	Publication Date	Title
IT1042139B (en)	1980-01-30	HYDRAULIC CONTROL SYSTEM
BR7403230D0 (en)	1974-11-19	HYDRAULIC SYSTEM
IT972351B (en)	1974-05-20	HYDRAULIC CONTROL AND VALVE ARRANGEMENT
AT334217B (en)	1976-01-10	HYDRAULIC CONTROL SYSTEM
BE746598A (en)	1970-07-31	SAFETY VALVE
NL7406744A (en)	1975-01-22	HYDRAULIC AND / OR PNEUMATIC VALVE.
BR7409644A (en)	1976-05-25	VALVE SYSTEM
BR7410913A (en)	1975-12-02	HYDRAULIC CONTROL SYSTEM
NL7501313A (en)	1975-08-13	HYDRAULIC FLUID SYSTEM.
SE395516B (en)	1977-08-15	HYDRAULIC VALVE DEVICE
NL7501394A (en)	1975-08-08	HYDRAULIC SAFETY VALVE.
BR7501867A (en)	1976-08-03	HYDRAULIC CONTROL SYSTEM
IT999596B (en)	1976-03-10	HYDRAULIC TUREINE AND PUMP SYSTEM INCLUDING THIS TURBINE
BR6913151D0 (en)	1973-02-08	HYDRAULIC SEALING VALVE
IT981560B (en)	1974-10-10	SAFETY VALVE
IT1012352B (en)	1977-03-10	HYDRAULIC SYSTEM
IT976869B (en)	1974-09-10	HYDRAULIC VALVE
BR7409304A (en)	1976-05-11	HYDRAULIC ACTIVATION SYSTEM AND VALVE USED IN THE SAME
DK138667C (en)	1979-03-12	VALVE COMBINATION FOR HYDRAULIC SYSTEMS
IT1010411B (en)	1977-01-10	HYDRAULIC VALVE AND INCORPORATING HYDRAULIC SYSTEM THAT VALVE
IT976866B (en)	1974-09-10	HYDRAULIC VALVE
IT952793B (en)	1973-07-30	HYDRAULIC SAFETY VALVE
NL179081C (en)	1986-07-01	SAFETY VALVE.
BR7506077A (en)	1976-08-10	VALVE AND LUBRICATING SYSTEM
IT1025579B (en)	1978-08-30	HYDRAULIC CONTROL SYSTEM