System and method for controlling an economizer circuit

Details System and method for controlling an economizer circuit System and method for controlling an economizer circuit

2011-03-01

2011-03-01

Norman, Marc E (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S509000

Reexamination Certificate

active

07895852

ABSTRACT:
A control algorithm for controlling an economizer circuit in a chiller system is provided. The control algorithm opens and closes a port valve in the economizer circuit in response to predetermined criteria to engage and disengage the economizer circuit. The predetermined criteria can include an operating parameter of a compressor and a level of liquid refrigerant in a flash tank.

REFERENCES:
patent: 4873838 (1989-10-01), Voorhis et al.
patent: 5027608 (1991-07-01), Rentmeester et al.
patent: 5046325 (1991-09-01), Kuwahara
patent: 5077983 (1992-01-01), Dudley
patent: 5174123 (1992-12-01), Erickson
patent: 5477695 (1995-12-01), Sjoholm et al.
patent: 5596878 (1997-01-01), Hanson et al.
patent: 5634350 (1997-06-01), De Medio
patent: 5806327 (1998-09-01), Lord et al.
patent: 5907957 (1999-06-01), Lee et al.
patent: 6176095 (2001-01-01), Porter
patent: 6202438 (2001-03-01), Barito
patent: 6213731 (2001-04-01), Doepker et al.
patent: 6474087 (2002-11-01), Lifson
patent: 6530238 (2003-03-01), Hansen
patent: 6601397 (2003-08-01), Pham et al.
patent: 6681583 (2004-01-01), Taguchi
patent: 6883341 (2005-04-01), Lifson
patent: 6941769 (2005-09-01), Hill, IV et al.
patent: 6973797 (2005-12-01), Nemit, Jr.
patent: 7353659 (2008-04-01), Crane et al.
patent: 2002/0066286 (2002-06-01), Alsenz
patent: 2003/0010046 (2003-01-01), Freund et al.
patent: 0529882 (1992-12-01), None
patent: 0564123 (1993-10-01), None
patent: 02037259 (1990-02-01), None
patent: 06-050614 (1994-02-01), None
patent: 11-094369 (1999-04-01), None
patent: 11-142001 (1999-05-01), None
patent: 2003-050060 (2003-02-01), None

Affiliated with

Also associated with

Rating

System and method for controlling an economizer circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for controlling an economizer circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for controlling an economizer circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2694941