CA930283A - Safety systems - Google Patents

Safety systems

Info

Publication number
CA930283A
CA930283A CA113497A CA113497A CA930283A CA 930283 A CA930283 A CA 930283A CA 113497 A CA113497 A CA 113497A CA 113497 A CA113497 A CA 113497A CA 930283 A CA930283 A CA 930283A
Authority
CA
Canada
Prior art keywords
safety systems
safety
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.)
Expired
Application number
CA113497A
Other languages
English (en)
Other versions
CA113497S (en
Inventor
Rohner Rudolf
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.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
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
Priority claimed from CH751470A external-priority patent/CH524076A/de
Application filed by Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Application granted granted Critical
Publication of CA930283A publication Critical patent/CA930283A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/16—Trip gear
    • F01D21/18—Trip gear involving hydraulic means
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/004—Fluid pressure supply failure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
CA113497A 1970-05-21 1971-05-20 Safety systems Expired CA930283A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH751470A CH524076A (de) 1970-05-21 1970-05-21 Sicherheitsschaltung
CH10171A CH533245A (de) 1970-05-21 1971-01-06 Sicherheitsschaltung

Publications (1)

Publication Number Publication Date
CA930283A true CA930283A (en) 1973-07-17

Family

ID=25683520

Family Applications (1)

Application Number Title Priority Date Filing Date
CA113497A Expired CA930283A (en) 1970-05-21 1971-05-20 Safety systems

Country Status (6)

Country Link
US (1) US3757646A (de)
BE (1) BE767456A (de)
CA (1) CA930283A (de)
FI (1) FI57172C (de)
FR (1) FR2090187B1 (de)
GB (1) GB1306786A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971296A (en) * 1974-09-18 1976-07-27 Kelor Limited Pneumatic actuators
US4034815A (en) * 1975-03-20 1977-07-12 Caterpillar Tractor Co. Blade lift float circuit for motor graders
US4147325A (en) * 1977-03-29 1979-04-03 Combustion Engineering, Inc. Hydraulic control assembly
CH636932A5 (de) * 1979-06-22 1983-06-30 Sulzer Ag Sicherheitsschaltung mit einem doppeltwirkenden, fluidbetriebenen servomotor.
WO1981000249A1 (en) * 1979-07-11 1981-02-05 J Muntjanoff Self adjusting actuator system
US4313633A (en) * 1979-07-11 1982-02-02 Caterpillar Tractor Co. Self adjusting actuator system
EP0496021B1 (de) * 1991-01-25 1994-11-30 Asea Brown Boveri Ag Zuschaltventil und hydraulisches Sicherheits- und Kraftölsystem, in welchem das Zuschaltventil verwendet wird
DE10058560A1 (de) * 2000-11-24 2002-06-13 Voith Turbo Kg Elektrohydraulischer Stellantrieb
DE102016102387A1 (de) 2015-07-31 2017-02-02 Voith Patent Gmbh Hydraulischer Antrieb zum Ausführen einer linearen Bewegung
CN109404065B (zh) * 2018-10-12 2021-12-17 上海华电电力发展有限公司 防止主机汽门遮断电磁阀故障引起机组跳闸的控制方法
CN111288044B (zh) * 2020-02-14 2021-11-30 三一汽车起重机械有限公司 液压系统和工程机械
CN113028077B (zh) * 2021-02-26 2022-09-16 重庆市江北嘴水源空调有限公司 一种江水取水用阀门
JP7321201B2 (ja) 2021-03-18 2023-08-04 三菱重工業株式会社 蒸気弁

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352334A (en) * 1942-06-09 1944-06-27 Macomber Thomas Wesson Aircraft control system
US2427549A (en) * 1942-08-08 1947-09-16 Weatherhead Co Gyroscopic apparatus
BE517780A (de) * 1952-02-21
US2855900A (en) * 1954-11-02 1958-10-14 British Messier Ltd Fluid pressure servo system with valve actuating means having a differential feel
US3608431A (en) * 1969-07-14 1971-09-28 Lummus Industries Control system for the ram of vertically disposed fluid pressure cylinders
US3604313A (en) * 1970-05-14 1971-09-14 Gen Signal Corp Hydraulic power circuit with rapid lowering provisions

Also Published As

Publication number Publication date
FR2090187A1 (de) 1972-01-14
FR2090187B1 (de) 1975-07-04
GB1306786A (en) 1973-02-14
FI57172B (fi) 1980-02-29
US3757646A (en) 1973-09-11
FI57172C (fi) 1980-06-10
BE767456A (fr) 1971-11-22

Similar Documents

Publication Publication Date Title
CA959556A (en) Security system
CA941599A (en) Safety razor
CA979097A (en) Alarm system
CA986156A (en) Safety device
CA930283A (en) Safety systems
CA949917A (en) Safety brake
CA934953A (en) Safety razor
CA926442A (en) Vehicular safety system
CA952996A (en) Warning system
CA844989A (en) Safety clip
CA923622A (en) Systems involving division
CA918780A (en) Alarm system
CA908808A (en) Safety alarm
CA948292A (en) Alarm system
CA857517A (en) Terrain-following system
AU455486B2 (en) Alarm system
CA851814A (en) Electrogasdynamic systems
CA851815A (en) Electrogasdynamic systems
CA851813A (en) Electrogasdynamic systems
CA846932A (en) Electrogasdynamic systems
CA859479A (en) Safety valve system
CA845009A (en) Safety control system
CA839529A (en) Safety tilt system
CA852232A (en) Mark-making system
CA852230A (en) Marking-record system