Title:
【発明の名称】タンデム型冷却システム
Document Type and Number:
Japanese Patent JPH09509732
Kind Code:
A
Abstract:
A refrigeration system for providing cooling to two or more compartments utilizing respective first and second evaporators. During the initial operation of a cooling cycle, the refrigerant is utilized for cooling the compartment (such as a fresh food compartment) which is to be maintained at a higher temperature as compared with another compartment (such as a freezer compartment). Cooling can thus be achieved by operating a fan in the fresh food compartment, even where the refrigeration system has not yet reached steady state after the compressor initially begins operating. After cooling has been achieved in the fresh food compartment, the refrigerant in the system has reached a state suitable for cooling of the freezer compartment, and the fan for the freezer evaporator is turned on while the fan for the fresh food compartment is turned off. As a result, a relatively simply refrigeration system is provided which is more efficient than conventional arrangements, particularly single-stage refrigeration systems. A defrosting cycle can also be accomplished with the fresh food fan operating, and with the freezer evaporator fan and compressor off. As the refrigerant evaporates in the fresh food evaporator during defrosting, a thermosiphon effect results in an exchange of refrigerant between the evaporators such that defrosting is accomplished without requiring a defrost heater.
Inventors:
Raider Maker, Kay Rainhard H
Kim, Kwangil
Copco, William Leslie
Pannock, Jurgen
Kim, Kwangil
Copco, William Leslie
Pannock, Jurgen
Application Number:
JP51390095A
Publication Date:
September 30, 1997
Filing Date:
November 14, 1994
Export Citation:
Assignee:
UNIV MARYLAND (US)
International Classes:
F25D17/06; F25B5/04; F25D11/02; F25D21/06; (IPC1-7): F25D11/02; F25B5/04; F25D17/06; F25D21/06
Attorney, Agent or Firm:
Masatake Shiga (2 outside)