Title:
HYDRAULIC DEVICE
Document Type and Number:
Japanese Patent JP2019206920
Kind Code:
A
Abstract:
To provide a hydraulic device capable of communicating an inner part and an outer part of a casing to suppress temperature rising of the inner part of the casing upon the usual time, and capable of intercepting the communication between the inner part and the outer part of the casing upon emergency.SOLUTION: A hydraulic device includes a hydraulic pump 1 which sucks and discharges working oil, an electric motor 2 which rotatively drives the hydraulic pump 1 and a casing 4 which has a tank 3 for storing the working oil sucked and discharged by the hydraulic pump 1 and covers the hydraulic pump 1, the electric motor 2 and the tank 3 to shield them from an outer part. The casing 4 has an opening which communicates the inner part and the outer part and an opening and closing mechanism 6 which opens and closes the opening. The opening is arranged oppositely to a cooling fan 2A of the electric motor 2.SELECTED DRAWING: Figure 1
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Inventors:
JOGASAKI MASAO
Application Number:
JP2018101657A
Publication Date:
December 05, 2019
Filing Date:
May 28, 2018
Export Citation:
Assignee:
TOYOOKI KOGYO KK
International Classes:
F04B53/08; F04B23/00; F04B23/02
Domestic Patent References:
| JPH01146761U | 1989-10-11 | |||
| JP2011101742A | 2011-05-26 | |||
| JPS59129311U | 1984-08-30 | |||
| JP2017516029A | 2017-06-15 | |||
| JP2013127266A | 2013-06-27 | |||
| JP2005005575A | 2005-01-06 |