Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2017/158809
Kind Code:
A1
Abstract:
This compressor is provided with: a sealed container having an oil reservoir space for collecting oil in the bottom; a compression mechanism part accommodated in the sealed container, the compression mechanism part compressing a fluid that flows into the sealed container; an electric motor accommodated in the sealed container, the electric motor generating rotational force; a rotating shaft which transmits the rotational force generated by the electric motor to the compression mechanism part, the inside of the rotating shaft being formed an oil supply path extending in an axial direction from an end part; an oil supply pump provided to the end-part side of the rotating shaft, the oil supply pump being actuated by the rotation of the rotating shaft, drawing out the oil in the oil reservoir space to supply the oil to the oil supply path, and having an oil flow path through which the oil flows and an oil outlet provided to the oil flow path; and a valve mechanism provided to the oil outlet. The valve mechanism has: a housing having a hollow part leading to the oil outlet, the housing having a discharge port leading to the oil reservoir space formed therein; and a valve body accommodated in the housing and moved by the pressure of the oil in the oil outlet. When the rotational speed of the rotating shaft is equal to or greater than a prescribed speed, the oil outlet is opened by the movement of the valve body, the oil is discharged from the discharge port to the oil reservoir space, and the discharge port of the valve mechanism is positioned inside the oil reservoir space.
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Inventors:
KAWAMURA RAITO (JP)
SEKIYA SHIN (JP)
IWATAKE WATARU (JP)
SASAKI KEI (JP)
SEKIYA SHIN (JP)
IWATAKE WATARU (JP)
SASAKI KEI (JP)
Application Number:
PCT/JP2016/058656
Publication Date:
September 21, 2017
Filing Date:
March 18, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04B39/02; F04C18/02
Foreign References:
| JPH1182350A | 1999-03-26 | |||
| JP2008128314A | 2008-06-05 | |||
| JPS6154566U | 1986-04-12 | |||
| US20050034770A1 | 2005-02-17 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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