FR2324962A1 - Perfectionnements relatifs a des soupapes hydrauliques et a des systemes hydrauliques utilisant ces soupapes - Google Patents

Perfectionnements relatifs a des soupapes hydrauliques et a des systemes hydrauliques utilisant ces soupapes

Info

Publication number
FR2324962A1
FR2324962A1 FR7415370A FR7415370A FR2324962A1 FR 2324962 A1 FR2324962 A1 FR 2324962A1 FR 7415370 A FR7415370 A FR 7415370A FR 7415370 A FR7415370 A FR 7415370A FR 2324962 A1 FR2324962 A1 FR 2324962A1
Authority
FR
France
Prior art keywords
valves
hydraulic
improvements relating
systems
hydraulic systems
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.)
Withdrawn
Application number
FR7415370A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unisys Corp
Original Assignee
Sperry Rand Corp
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.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of FR2324962A1 publication Critical patent/FR2324962A1/fr
Withdrawn legal-status Critical Current

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
    • 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)
FR7415370A 1973-05-04 1974-05-03 Perfectionnements relatifs a des soupapes hydrauliques et a des systemes hydrauliques utilisant ces soupapes Withdrawn FR2324962A1 (fr)

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
FR2324962A1 true FR2324962A1 (fr) 1977-04-15

Family

ID=10158873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415370A Withdrawn FR2324962A1 (fr) 1973-05-04 1974-05-03 Perfectionnements relatifs a des soupapes hydrauliques et a des systemes hydrauliques utilisant ces soupapes

Country Status (6)

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

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
DE3478050D1 (en) * 1983-08-29 1989-06-08 Caterpillar Mitsubishi Ltd Flow control valve

Also Published As

Publication number Publication date
SE406796B (sv) 1979-02-26
IT1010411B (it) 1977-01-10
GB1474686A (en) 1977-05-25
JPS5031432A (fr) 1975-03-27
DE2420891A1 (de) 1974-11-21

Similar Documents

Publication Publication Date Title
BE796453A (fr) Perfectionnements relatifs a des verins hydrauliques
BE771990A (fr) Perfectionnements a des systemes de combustion
AT328667B (de) Hydraulisches senkbrems - sperrventil
IT1024146B (it) Valvola idraulica sanitaria
IT1016981B (it) Sistema idraulico a pressione va riabile
IT1000426B (it) Perfezionamento nelle disposizioni di cilindri idraulici a doppio effetto
BE814994A (fr) Perfectionnements apportes a des soupapes
BR7302498D0 (pt) Um cilindro hidraulico um cilindro hidraulico
SE395516B (sv) Hydraulisk ventilanordning
SE393166B (sv) Hydrauliskt reglerventilaggregat
BE771950A (fr) Perfectionnements apportes aux systemes hydrauliques
IT1045650B (it) Perfezionamenti apportati a valvole idrauliche
BE819530A (fr) Valve a resserrement
BR6913151D0 (pt) Valvula de vedacao hidraulica
BE767588A (fr) Perfectionnements apportes aux systemes hydrauliques
IT1026595B (it) Perfezionamenti in o relativi a dispositivi ad azionamento idraulico
IT993855B (it) Perfezionamenti relativi a valvole
IT1022821B (it) Valvola azionata dalla temperatura
SE390558B (sv) Hydraulisk reglerventil
RO70826A (fr) Clapet hydraulique d'interconnexion
SE409051B (sv) Hydraulisk regleringsventil
IT1024147B (it) Valvola idraulica sanitaria
IT999273B (it) Valvola di sicurezza a funzionamen to termico
BE792037A (fr) Perfectionnements a des valves
BE786342A (fr) Perfectionnements aux systemes utilisant des calculateurs

Legal Events

Date Code Title Description
ST Notification of lapse