JPS55115601A - Oil tank for hydraulic elevator - Google Patents

Oil tank for hydraulic elevator

Info

Publication number
JPS55115601A
JPS55115601A JP2140679A JP2140679A JPS55115601A JP S55115601 A JPS55115601 A JP S55115601A JP 2140679 A JP2140679 A JP 2140679A JP 2140679 A JP2140679 A JP 2140679A JP S55115601 A JPS55115601 A JP S55115601A
Authority
JP
Japan
Prior art keywords
oil
cooling
cooler
tank
pipe
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.)
Pending
Application number
JP2140679A
Other languages
Japanese (ja)
Inventor
Nobuhiko Toyoshima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2140679A priority Critical patent/JPS55115601A/en
Publication of JPS55115601A publication Critical patent/JPS55115601A/en
Pending legal-status Critical Current

Links

Landscapes

  • Types And Forms Of Lifts (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To simplify the structure of hydraulic system of an elevator, by providing a cooling means at an intermediate portion between a branch pipe and an oil tank, and thereby omitting an oil circulating pump diven by a motor which must be otherwise provided for cooling hydraulic oil.
CONSTITUTION: In case that cage 11 is moved downward, oil from jack 8 is passed through main pipe 7, branch pipe 6 and cooling pipe 16 in cooler 17, with its flow being restricted appropriately by control valve 5, and returns to tank 1. When it is required to cool oil since its temperature is raised after long guse, oil is returned to tank 1 after it is cooled by control fan 14 when passing through cooling pipe 16 in cooler 17. Since cooler 17 is used in the above arrangement, it is not necessary to provide special motor and circulating pump for cooling hydraulic oil, so that the structure of hydraulic system can be simplified and, at the same time, maintenance and inspection of the system can be also simplified.
COPYRIGHT: (C)1980,JPO&Japio
JP2140679A 1979-02-27 1979-02-27 Oil tank for hydraulic elevator Pending JPS55115601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2140679A JPS55115601A (en) 1979-02-27 1979-02-27 Oil tank for hydraulic elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2140679A JPS55115601A (en) 1979-02-27 1979-02-27 Oil tank for hydraulic elevator

Publications (1)

Publication Number Publication Date
JPS55115601A true JPS55115601A (en) 1980-09-05

Family

ID=12054154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2140679A Pending JPS55115601A (en) 1979-02-27 1979-02-27 Oil tank for hydraulic elevator

Country Status (1)

Country Link
JP (1) JPS55115601A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262392A (en) * 1988-08-26 1990-03-02 Mitsubishi Electric Corp Hydraulic oil power unit for hydraulic elevator
US6488129B2 (en) 1999-10-27 2002-12-03 Inteventio Ag Cooling device for a drive means of an elevator
US6499567B2 (en) * 1999-08-30 2002-12-31 Otis Elevator Company Hydraulic power unit for an elevator drive
CN106837939A (en) * 2017-03-08 2017-06-13 张海 Hydraulic power system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262392A (en) * 1988-08-26 1990-03-02 Mitsubishi Electric Corp Hydraulic oil power unit for hydraulic elevator
US6499567B2 (en) * 1999-08-30 2002-12-31 Otis Elevator Company Hydraulic power unit for an elevator drive
US6488129B2 (en) 1999-10-27 2002-12-03 Inteventio Ag Cooling device for a drive means of an elevator
CN106837939A (en) * 2017-03-08 2017-06-13 张海 Hydraulic power system

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