AU604000B2 - Pressure-referenced programmed flow control in a hydraulic valve - Google Patents

Pressure-referenced programmed flow control in a hydraulic valve Download PDF

Info

Publication number
AU604000B2
AU604000B2 AU65180/86A AU6518086A AU604000B2 AU 604000 B2 AU604000 B2 AU 604000B2 AU 65180/86 A AU65180/86 A AU 65180/86A AU 6518086 A AU6518086 A AU 6518086A AU 604000 B2 AU604000 B2 AU 604000B2
Authority
AU
Australia
Prior art keywords
valve
flow
outlet
main
pressure
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.)
Ceased
Application number
AU65180/86A
Other languages
English (en)
Other versions
AU6518086A (en
Inventor
Giorgio Fossati
Giuseppe Manco
Harold Terry
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.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
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 US06/853,286 external-priority patent/US4674527A/en
Priority claimed from US06/853,284 external-priority patent/US4700748A/en
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Publication of AU6518086A publication Critical patent/AU6518086A/en
Application granted granted Critical
Publication of AU604000B2 publication Critical patent/AU604000B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Types And Forms Of Lifts (AREA)
AU65180/86A 1985-11-18 1986-11-14 Pressure-referenced programmed flow control in a hydraulic valve Ceased AU604000B2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US79976585A 1985-11-18 1985-11-18
US79966585A 1985-11-18 1985-11-18
US799665 1985-11-18
US799765 1985-11-18
US06/853,286 US4674527A (en) 1985-11-18 1986-04-17 Pressure relieving linear motion valve
US853284 1986-04-17
US06/853,284 US4700748A (en) 1985-11-18 1986-04-17 Pressure-referenced programmed flow control in a hydraulic valve
US853286 1986-04-17

Publications (2)

Publication Number Publication Date
AU6518086A AU6518086A (en) 1987-05-21
AU604000B2 true AU604000B2 (en) 1990-12-06

Family

ID=27505803

Family Applications (1)

Application Number Title Priority Date Filing Date
AU65180/86A Ceased AU604000B2 (en) 1985-11-18 1986-11-14 Pressure-referenced programmed flow control in a hydraulic valve

Country Status (6)

Country Link
EP (1) EP0227296B1 (de)
CN (1) CN1010970B (de)
AU (1) AU604000B2 (de)
DE (1) DE3684262D1 (de)
FI (1) FI90036C (de)
NZ (1) NZ218082A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694935A (en) * 1986-10-17 1987-09-22 Cemco, Inc. Self-adjusting control valve for elevators
US5082091A (en) * 1990-01-19 1992-01-21 Otis Elevator Company Hydraulic elevator control
US5014824A (en) * 1990-01-19 1991-05-14 Otis Elevator Company Hydraulic elevator control valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391702A (en) * 1965-12-14 1968-07-09 Gen Electric Liquid flow systems
US3842943A (en) * 1972-03-15 1974-10-22 Hitachi Ltd Hydraulic elevator
AU6517986A (en) * 1985-11-18 1987-05-21 Otis Elevator Company Dynamically programmed motor operated valve control

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138136B2 (de) * 1971-09-17 1976-10-20
CH578478A5 (en) * 1974-06-11 1976-08-13 Sig Schweiz Industrieges Hydraulically operated platform control system - has motor driving screwed spindle passing through control plunger
US3977497A (en) * 1975-02-26 1976-08-31 Armor Elevator Company, Inc. Hydraulic elevator drive system
IT1138425B (it) * 1981-06-16 1986-09-17 Stigler Otis S P A Complesso elettro-fluidodinamico per l'azionamento di una cabina di un impianto ascensore
FI71710C (fi) * 1985-04-30 1987-02-09 Pentti Rita Elektriskt styrd ventilanordning.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391702A (en) * 1965-12-14 1968-07-09 Gen Electric Liquid flow systems
US3842943A (en) * 1972-03-15 1974-10-22 Hitachi Ltd Hydraulic elevator
AU6517986A (en) * 1985-11-18 1987-05-21 Otis Elevator Company Dynamically programmed motor operated valve control

Also Published As

Publication number Publication date
EP0227296A2 (de) 1987-07-01
AU6518086A (en) 1987-05-21
DE3684262D1 (de) 1992-04-16
CN86107735A (zh) 1987-06-17
FI90036C (fi) 1993-12-27
EP0227296A3 (en) 1989-03-22
NZ218082A (en) 1988-10-28
CN1010970B (zh) 1990-12-26
EP0227296B1 (de) 1992-03-11
FI864662A (fi) 1987-05-19
FI864662A0 (fi) 1986-11-17
FI90036B (fi) 1993-09-15

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