Title:
OIL EQUALIZING SYSTEM FOR PLURAL COMPRESSORS
Document Type and Number:
Japanese Patent JPH1163691
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent oil amount insufficiency of a compressor of a low capacity side, by communicating one end of an oil equalizing bypass with the vicinity of standard oil level height of a shell of partial compressor, communicating many ends with a suction pipe of the other compressor, and providing a throttle on the way of the both ends. SOLUTION: Oil equalizing tube connecting pipes 2a to 2c are provided near standard oil level height of shells of a plurality of compressors 1a to 1c. An oil equalizing tube 3 communicates with one ends of the pipes 2a to 2c. A vapor liquid separator 6 having a gas refrigerant exhaust port 7 for exhausting only gas refrigerant is provided at a suction pipe 5a of an upstream side from suction branch parts 4a, 4b of the compressors 1a to 1c. One end of an oil equalizing bypass 9 closely communicates with standard oil level height of the shells of the partial compressors 1b, 1c. Many ends communicate with the pipe 5a of the other compressor 1a, and a throttle is formed on the way of the both ends. Thus, oil amount insufficiency of the compressor of low capacity side can be prevented.
Inventors:
KANEKO TAKASHI
KURACHI MASAO
NAKATANI KAZUO
KUSAKA MICHIYOSHI
KURACHI MASAO
NAKATANI KAZUO
KUSAKA MICHIYOSHI
Application Number:
JP22464197A
Publication Date:
March 05, 1999
Filing Date:
August 21, 1997
Export Citation:
Assignee:
MATSUSHITA REFRIGERATION
International Classes:
F25B1/00; (IPC1-7): F25B1/00
Attorney, Agent or Firm:
Tomoyuki Takimoto (1 person outside)