Title:
【発明の名称】制御された冷却および昇温速度と長期加熱機能とを有する極低温冷凍システム
Document Type and Number:
Japanese Patent JP2003535299
Kind Code:
A
Abstract:
Heating/defrost construction of very low temperature refrigeration system (100) having a defrost supply circuit (176, 178, 180) and a defrost return bypass circuit (186, 188, 190) optimizing the heating/defrost cycle, preventing overload (excessive pressure) of its refrigeration process and protecting components from damaging temperatures. The defrost cycle operates continuously, when required, and provides a shorter recovery period between heating/defrost and cooling operating modes. The rate of the temperature change during cool down or warm up is controlled in an open loop fashion by controlled refrigerant flow in bypass circuits (178, 190).
More Like This:
| JP2004184074 | STRUCTURE OF MEANDERING PIPE CROSSING FLOW TYPE HEAT EXCHANGER |
| JP2002333294 | HEADER STRUCTURE OF HEAT EXCHANGER |
| JP4035871 | Refrigerant circuit |
Inventors:
Flynn, Kevin, Pea.
Hall, pole, h
Hall, pole, h
Application Number:
JP2002500163A
Publication Date:
November 25, 2003
Filing Date:
May 30, 2001
Export Citation:
Assignee:
IGC Polycold Systems Inc.
International Classes:
F25B40/00; F25D21/06; F25B47/02; F25B9/00; F25B41/04; (IPC1-7): F25B47/02; F25D21/06
Domestic Patent References:
| JPH02208467A | 1990-08-20 | |||
| JPH11193967A | 1999-07-21 | |||
| JPH09229497A | 1997-09-05 | |||
| JPH10297270A | 1998-11-10 | |||
| JPS6294766A | 1987-05-01 | |||
| JPH11230646A | 1999-08-27 | |||
| JPH11108573A | 1999-04-23 | |||
| JPH07204984A | 1995-08-08 | |||
| JPS63251770A | 1988-10-19 | |||
| JPH11173683A | 1999-07-02 | |||
| JPH0611232A | 1994-01-21 | |||
| JPH09318178A | 1997-12-12 | |||
| JPH09105560A | 1997-04-22 |
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)