GB2029604B - Hydraulic ramping circuit for control valve - Google Patents

Hydraulic ramping circuit for control valve

Info

Publication number
GB2029604B
GB2029604B GB7835804A GB7835804A GB2029604B GB 2029604 B GB2029604 B GB 2029604B GB 7835804 A GB7835804 A GB 7835804A GB 7835804 A GB7835804 A GB 7835804A GB 2029604 B GB2029604 B GB 2029604B
Authority
GB
United Kingdom
Prior art keywords
hydraulic
control valve
ramping circuit
ramping
circuit
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
GB7835804A
Other versions
GB2029604A (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.)
ConocoPhillips Co
Original Assignee
Conoco Inc
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 Conoco Inc filed Critical Conoco Inc
Priority to GB7835804A priority Critical patent/GB2029604B/en
Publication of GB2029604A publication Critical patent/GB2029604A/en
Application granted granted Critical
Publication of GB2029604B publication Critical patent/GB2029604B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/04—Level control, e.g. controlling quantity of material stored in vessel with auxiliary non-electric power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
GB7835804A 1978-09-06 1978-09-06 Hydraulic ramping circuit for control valve Expired GB2029604B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7835804A GB2029604B (en) 1978-09-06 1978-09-06 Hydraulic ramping circuit for control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7835804A GB2029604B (en) 1978-09-06 1978-09-06 Hydraulic ramping circuit for control valve

Publications (2)

Publication Number Publication Date
GB2029604A GB2029604A (en) 1980-03-19
GB2029604B true GB2029604B (en) 1983-02-09

Family

ID=10499470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835804A Expired GB2029604B (en) 1978-09-06 1978-09-06 Hydraulic ramping circuit for control valve

Country Status (1)

Country Link
GB (1) GB2029604B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597319A (en) * 1983-12-16 1986-07-01 United Technologies Corporation Fluid actuator slew rate control
DE10124847A1 (en) * 2001-05-22 2002-11-28 Abb Patent Gmbh Operating actuator drive e.g. for pipeline, involves maximum actuation speed during first phase, and reducing actuation speed continuously with defined gradient from predefined position in second phase

Also Published As

Publication number Publication date
GB2029604A (en) 1980-03-19

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee