Title:
HERMETIC TYPE COMPRESSOR
Document Type and Number:
Japanese Patent JP3192863
Kind Code:
B2
Abstract:
PURPOSE: To perform the feed of lubricating oil to a slide part simultaneously with the starting of a compressor by locating a means, shutting off an oil feed line during the stop of a compressor, during the feed of an oil feed pipe.
CONSTITUTION: A solenoid valve 22 is located in an oil feed pipe 17 through which lubricating oil is fed from an oil reservoir 10 to a compressor 3. A valve opening closing signal is outputted from a central processing unit, contained in a controller 21, to the solenoid valve 22, which is turned ON during drive of the compressor 3 and closed during a stop. Thus, during the stop of the compressor 3, lubricating oil in the oil feed pipe 17 is prevented from dropping, and since a state wherein the oil feed pipe 17 is choked with lubricating oil is held, during the starting of the compressor 3, a gas refrigerant is not sucked by an oil pump but oil is sucked from the beginning thereby. This constitution prevents the occurrence of defective lubrication of a slide part during the starting of the compressor 3 and eliminates a fear of a trouble, such as abnormal wear, the generation of heat, and burning to occur.
Inventors:
Masahiko Sasakura
Application Number:
JP4866294A
Publication Date:
July 30, 2001
Filing Date:
March 18, 1994
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F04B39/02; (IPC1-7): F04B39/02
Domestic Patent References:
| JP2196176A | ||||
| JP48892A | ||||
| JP330632Y2 |
Attorney, Agent or Firm:
Arata Ishikawa