JPS55115601A - Oil tank for hydraulic elevator - Google Patents
Oil tank for hydraulic elevatorInfo
- 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
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
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)
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 |
-
1979
- 1979-02-27 JP JP2140679A patent/JPS55115601A/en active Pending
Cited By (4)
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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