CA2131045A1 - Indicateur haute/basse pression - Google Patents

Indicateur haute/basse pression

Info

Publication number
CA2131045A1
CA2131045A1 CA002131045A CA2131045A CA2131045A1 CA 2131045 A1 CA2131045 A1 CA 2131045A1 CA 002131045 A CA002131045 A CA 002131045A CA 2131045 A CA2131045 A CA 2131045A CA 2131045 A1 CA2131045 A1 CA 2131045A1
Authority
CA
Canada
Prior art keywords
pilot
pressure
valve
port
spool
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.)
Abandoned
Application number
CA002131045A
Other languages
English (en)
Inventor
Clarence William Johnson
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.)
Barber Industries Inc
Original Assignee
Barber Industries 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.)
Filing date
Publication date
Application filed by Barber Industries Ltd filed Critical Barber Industries Ltd
Priority to CA002131045A priority Critical patent/CA2131045A1/fr
Publication of CA2131045A1 publication Critical patent/CA2131045A1/fr
Abandoned 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/007—Overload
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
CA002131045A 1994-08-29 1994-08-29 Indicateur haute/basse pression Abandoned CA2131045A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002131045A CA2131045A1 (fr) 1994-08-29 1994-08-29 Indicateur haute/basse pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002131045A CA2131045A1 (fr) 1994-08-29 1994-08-29 Indicateur haute/basse pression

Publications (1)

Publication Number Publication Date
CA2131045A1 true CA2131045A1 (fr) 1996-03-01

Family

ID=29220413

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002131045A Abandoned CA2131045A1 (fr) 1994-08-29 1994-08-29 Indicateur haute/basse pression

Country Status (1)

Country Link
CA (1) CA2131045A1 (fr)

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20040917