IT8867895A0 - Dispositivo di smorzamento per valvole ad azionamento fluidico - Google Patents

Dispositivo di smorzamento per valvole ad azionamento fluidico

Info

Publication number
IT8867895A0
IT8867895A0 IT8867895A IT6789588A IT8867895A0 IT 8867895 A0 IT8867895 A0 IT 8867895A0 IT 8867895 A IT8867895 A IT 8867895A IT 6789588 A IT6789588 A IT 6789588A IT 8867895 A0 IT8867895 A0 IT 8867895A0
Authority
IT
Italy
Prior art keywords
damping device
fluid actuated
actuated valves
valves
fluid
Prior art date
Application number
IT8867895A
Other languages
English (en)
Other versions
IT1224468B (it
Inventor
Christensen Thorkild
Erik Thomsen Svend
Siegfried Zenker
Original Assignee
Danfoss As
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 Danfoss As filed Critical Danfoss As
Publication of IT8867895A0 publication Critical patent/IT8867895A0/it
Application granted granted Critical
Publication of IT1224468B publication Critical patent/IT1224468B/it

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
    • F15B11/003—Systems with load-holding 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
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/045—Compensating for variations in viscosity or temperature
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control 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
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow 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
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • 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
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Temperature-Responsive Valves (AREA)
  • Fluid-Damping Devices (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Vibration Prevention Devices (AREA)
IT67895/88A 1987-10-06 1988-10-05 Dispositivo di smorzamento per valvole ad azionamento fluidico IT1224468B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873733740 DE3733740A1 (de) 1987-10-06 1987-10-06 Daempfungsanordnung zur schwingungsdaempfung von mit druckfluessigkeit gesteuerten ventilen

Publications (2)

Publication Number Publication Date
IT8867895A0 true IT8867895A0 (it) 1988-10-05
IT1224468B IT1224468B (it) 1990-10-04

Family

ID=6337709

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67895/88A IT1224468B (it) 1987-10-06 1988-10-05 Dispositivo di smorzamento per valvole ad azionamento fluidico

Country Status (6)

Country Link
US (1) US4955194A (it)
JP (1) JPH07101071B2 (it)
CA (1) CA1330555C (it)
DE (1) DE3733740A1 (it)
DK (1) DK164752C (it)
IT (1) IT1224468B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI87918C (fi) * 1989-12-19 1993-03-10 Kone Oy Styrventil foer en hydraulisk hiss
DE4021347A1 (de) * 1990-07-05 1992-01-16 Heilmeier & Weinlein Hydraulische steuervorrichtung
DE4105459A1 (de) * 1991-02-21 1992-08-27 Heilmeier & Weinlein Hydraulische steuervorrichtung
JPH086723B2 (ja) 1991-02-21 1996-01-29 ハイルマイア ウント バインライン ファブリク フュル オエル − ハイドロリク ゲ−エムベ−ハー ウント コンパニー，カーゲー 油圧制御装置
DE4311594A1 (de) * 1993-04-08 1994-10-13 Teves Gmbh Alfred Hydraulische oder pneumatische Anlage mit einer Einrichtung zur Vermeidung von Druckstößen
DE4406777A1 (de) * 1994-03-02 1995-09-07 Teves Gmbh Alfred Elektromagnetventil, insbesondere für schlupfgeregelte Kraftfahrzeugbremsanlagen
DE10015643B4 (de) 2000-03-29 2020-07-02 Robert Bosch Gmbh Elektromagnetisch betätigbares Druckregelventil
JP4596640B2 (ja) * 2000-10-05 2010-12-08 株式会社不二工機 可変オリフィス装置
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
DE10320776B4 (de) * 2003-05-09 2009-12-24 Zf Friedrichshafen Ag Vorrichtung zur Kompensation von viskosen Eigenschaften eines hydraulischen Mediums in einer hydraulischen Druckleitung
WO2005021914A1 (en) * 2003-09-03 2005-03-10 Dpnkd Holdings Inc. Automatic portable door operating system
JP2009150555A (ja) * 2009-03-02 2009-07-09 Front Co Ltd 流量調節弁
US20110209769A1 (en) * 2010-03-01 2011-09-01 Chun Richard K Thermally operated valve
EP3104022B1 (en) * 2015-06-12 2019-12-04 National Oilwell Varco Norway AS Improvements in the control of hydraulic actuators
EP3401554B1 (en) 2017-05-12 2020-04-15 Hamilton Sundstrand Corporation Nozzle assembly
CN108591802B (zh) * 2017-11-22 2023-12-01 南京孚奥智能技术有限公司 一种风电冷却器专用压力随动温控系统

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US593399A (en) * 1897-11-09 Thermostatic valve
US1964638A (en) * 1931-01-26 1934-06-26 Kreidel Hans Thermostatic lubricant flow regulator
DE865413C (de) * 1949-12-19 1953-02-02 Bofors Ab Hydraulisch betaetigter Servomotor
FR1039581A (fr) * 1949-12-19 1953-10-08 Bofors Ab Perfectionnements aux groupes servo-moteurs
US2965120A (en) * 1956-10-29 1960-12-20 Gen Motors Corp Pressure control device
US2966170A (en) * 1957-07-02 1960-12-27 Otis Eng Co Temperature compensated metering valve
US3144879A (en) * 1963-03-12 1964-08-18 Hans D Baumann Adjustable laminar flow restriction
US3340893A (en) * 1964-11-20 1967-09-12 Heald Machine Co Throttle
US4401009A (en) * 1972-11-08 1983-08-30 Control Concepts, Inc. Closed center programmed valve system with load sense
US3971216A (en) * 1974-06-19 1976-07-27 The Scott & Fetzer Company Load responsive system with synthetic signal
DE2728004C2 (de) * 1977-06-22 1981-10-08 Danfoss A/S, 6430 Nordborg Hydraulische Steuervorrichtung für einen Servomotor, insbesondere für Fahrzeuglenkungen
JPS5621602U (it) * 1979-07-27 1981-02-26
JPS5631566A (en) * 1979-08-21 1981-03-30 Katashi Aoki Method of controlling liquid flow in hydraulic unit
US4426194A (en) * 1981-03-06 1984-01-17 Sundstrand Corporation Viscosity compensating circuits
US4523430A (en) * 1981-03-19 1985-06-18 Daikin Kogyo Co., Ltd. Fluid flow control system
DK154169C (da) * 1984-10-03 1989-03-20 Danfoss As Styreindretning for en hydraulisk drevet forbruger
JPS6246879U (it) * 1985-09-10 1987-03-23

Also Published As

Publication number Publication date
US4955194A (en) 1990-09-11
DK550788A (da) 1989-04-07
DK164752C (da) 1992-12-28
CA1330555C (en) 1994-07-05
JPH01131303A (ja) 1989-05-24
IT1224468B (it) 1990-10-04
DK164752B (da) 1992-08-10
DE3733740C2 (it) 1991-06-27
DE3733740A1 (de) 1989-04-20
DK550788D0 (da) 1988-10-03
JPH07101071B2 (ja) 1995-11-01

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971030