Air conditioner

Details Air conditioner Air conditioner

2006-12-13

2010-12-21

Jiang, Chen-Wen (Department: 3744)

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

C062S238600, C062S468000

Reexamination Certificate

active

07854134

ABSTRACT:
An air conditioner is provided with a refrigerant circuit and an operation controller. The refrigerant circuit includes a heat source unit, a refrigerant communication pipe, an expansion mechanism, and a utilization unit. The heat source unit has a compression mechanism and a heat source side heat exchanger. The heat source unit is connected to the refrigerant communication pipe. The utilization unit has a utilization side heat exchanger and is connected to the refrigerant gas communication pipe. The operation controller performs an oil-return operation in advance for returning oil pooled in the refrigerant circuit when a refrigerant quantity judging operation is carried out for judging the refrigerant quantity inside the refrigerant circuit.

REFERENCES:
patent: 5966947 (1999-10-01), Kamimura et al.
patent: 03-11278 (1991-01-01), None
patent: 04-148170 (1992-05-01), None
patent: H07-021374 (1995-03-01), None
patent: H08-005169 (1996-01-01), None
patent: 10-170108 (1998-06-01), None
patent: H11-211292 (1999-08-01), None
patent: 2002-277114 (2002-09-01), None
patent: 2004-218849 (2004-08-01), None
patent: 2005-098642 (2005-04-01), None
patent: 10-0509833 (1998-10-01), None
Japanese Office Communication of corresponding Japanese Application No. 2005-363740 dated Feb. 9, 2010.
Korean Office Action of corresponding Korean Application No. 10-2008-7015053 dated May 25, 2010.

Affiliated with

Also associated with

Rating

Air conditioner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air conditioner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air conditioner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4237762