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ES2067709T3 - Valvula de control de un ascensor hidraulico. - Google Patents

Valvula de control de un ascensor hidraulico.

Info

Publication number
ES2067709T3
ES2067709T3 ES90403567T ES90403567T ES2067709T3 ES 2067709 T3 ES2067709 T3 ES 2067709T3 ES 90403567 T ES90403567 T ES 90403567T ES 90403567 T ES90403567 T ES 90403567T ES 2067709 T3 ES2067709 T3 ES 2067709T3
Authority
ES
Spain
Prior art keywords
piston
check valve
valve
hydraulic
parts
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 - Lifetime
Application number
ES90403567T
Other languages
English (en)
Inventor
Richard N Fargo
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
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Application granted granted Critical
Publication of ES2067709T3 publication Critical patent/ES2067709T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Types And Forms Of Lifts (AREA)
  • Elevator Control (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

EL FLUJO DE FLUIDO HIDRAULICO A Y DESDE UN PISTON HIDRAULICO, SE CONTROLA POR UNA VALVULA DE CARRETE ACTUADA POR MOTOR, OPERADA POR MICROPROCESADOR. PARA BAJAR EL ELEVADOR, UNA VALVULA DE CHEQUEO PRINCIPAL ES ABIERTA POR UN PISTON UTILIZANDO FLUIDO HIDRAULICO DEL SISTEMA. LA PRESION SE ECUALIZA EN AMBAS PARTES DE LA VALVULA PRINCIPAL DE CHEQUEO JUSTO ANTES DE QUE LA ULTIMA SE ABRA, PERMITIENDO EL USO DE UN PISTON BAJO MAS PEQUEÑO, UTILIZANDO MENOS FLUIDO HIDRAULICO. ESTO DA LUGAR A UN MOVIMIENTO DEL CARRO SUAVE DURANTE EL DESCENSO DEL MISMO. LA ADICION DE UNA VALVULA SOLENOIDE DE PURGA ECUALIZA LA PRESION EN AMBAS PARTES DE LA VALVULA DE CHEQUEO Y EVITA DESCENSOS RAPIDOS DEL CARRO ELEVADOR EN CASO DE QUE LA VALVULA DE CARRETE SE ABRIERA AL COMIENZO DEL TIEMPO DE DESCENSO .
ES90403567T 1990-01-19 1990-12-13 Valvula de control de un ascensor hidraulico. Expired - Lifetime ES2067709T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/467,445 US5014824A (en) 1990-01-19 1990-01-19 Hydraulic elevator control valve

Publications (1)

Publication Number Publication Date
ES2067709T3 true ES2067709T3 (es) 1995-04-01

Family

ID=23855731

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90403567T Expired - Lifetime ES2067709T3 (es) 1990-01-19 1990-12-13 Valvula de control de un ascensor hidraulico.

Country Status (9)

Country Link
US (1) US5014824A (es)
EP (1) EP0437995B1 (es)
JP (1) JPH07115813B2 (es)
CZ (1) CZ280875B6 (es)
DE (1) DE69014583T2 (es)
ES (1) ES2067709T3 (es)
HU (1) HU209106B (es)
PL (1) PL166561B1 (es)
RU (1) RU2018724C1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2893978B2 (ja) * 1991-02-28 1999-05-24 株式会社日立製作所 流体圧エレベータ及びその制御方法
US5212951A (en) * 1991-05-16 1993-05-25 Otis Elevator Company Hydraulic elevator control valve
IT1248792B (it) * 1991-05-20 1995-01-30 Gmv Martini Spa Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca
US5346038A (en) * 1994-03-14 1994-09-13 Rehfeld Kurt R Kinetic energy elevator systems
US5636652A (en) * 1995-02-28 1997-06-10 Otis Elevator Company Valve for a hydraulic elevator
US5593004A (en) * 1995-03-28 1997-01-14 Blain Roy W Servo control for hydraulic elevator
US5603390A (en) * 1995-04-28 1997-02-18 Otis Elevator Company Control system for an elevator
US5860491A (en) * 1996-07-18 1999-01-19 Advantage Lift Systems, Inc. Hydraulic lift system and method for retrofitting
US5740886A (en) * 1996-07-18 1998-04-21 Advantage Lift Systems, Inc. Method of retrofit of in-ground automotive lift system
US8973712B2 (en) * 2010-02-12 2015-03-10 Vehicle Service Group, Llc Inground superstructure and integrated third stage arm for vehicle lift
CN102452590B (zh) * 2010-10-20 2013-09-18 沈传良 液压电梯蓄能装置
US8925439B2 (en) 2011-01-13 2015-01-06 Husco International, Inc. Valve control valve circuit for operating a single acting hydraulic cylinder
US10611600B2 (en) * 2017-06-26 2020-04-07 Otis Elevator Company Hydraulic elevator system with position or speed based valve control

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563295A (en) * 1946-10-28 1951-08-07 Hobson Ltd H M Remotely operated hydraulic servomotor
DE2646294C2 (de) * 1976-10-14 1987-02-26 C. Haushahn GmbH & Co, 7000 Stuttgart Hydraulische Antriebsvorrichtung für einen Aufzug
AU541165B2 (en) * 1979-09-14 1984-12-20 J.I. Case Company Draft control valve
US4557180A (en) * 1983-03-28 1985-12-10 Rexa Corporation Control valve and hydraulic system employing same
DE3434014A1 (de) * 1984-09-15 1986-03-20 Beringer-Hydraulik GmbH, Neuheim, Zug Hydraulische steuerung
NZ218082A (en) * 1985-11-18 1988-10-28 Otis Elevator Co Pressure referenced programmed flow control in a hydraulic valve
DE3709661C2 (de) * 1987-03-24 1995-07-13 Haushahn C Gmbh Co Vorrichtung zur Unterdrückung bzw. zur Verhinderung der Schwingungen eines motorbetiebenen Hebezeugs, insbesondere eines Aufzugs
FI83204C (fi) * 1987-11-04 1991-06-10 Kone Oy Foerfarande och anordning foer foerbaettring av verkningsgraden hos en motorstyrd hydraulhiss.

Also Published As

Publication number Publication date
CZ280875B6 (cs) 1996-04-17
PL288740A1 (en) 1991-12-16
EP0437995A3 (en) 1992-08-05
JPH07115813B2 (ja) 1995-12-13
DE69014583D1 (de) 1995-01-12
JPH04272079A (ja) 1992-09-28
PL166561B1 (pl) 1995-06-30
RU2018724C1 (ru) 1994-08-30
HUT56042A (en) 1991-07-29
US5014824A (en) 1991-05-14
DE69014583T2 (de) 1995-05-18
CS9100100A2 (en) 1991-08-13
EP0437995A2 (en) 1991-07-24
EP0437995B1 (en) 1994-11-30
HU209106B (en) 1994-03-28

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