[특허]Control algorithm for dual temperature evaporator system

Control algorithm for dual temperature evaporator system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-017/08
출원번호	US-0192214 (1994-02-04)
발명자 / 주소	LeClear Douglas D. (St. Joseph Township Berrien County MI) Chen Kenneth P. (Tustin CA) Thiele Scott A. (St. Joseph MI) Cur Nihat O. (Royalton Township Berrien County MI) Khanpara Jatin C. (St. Jo
출원인 / 주소	Whirlpool Corporation (Benton Harbor MI 02)
인용정보	피인용 횟수 : 42 인용 특허 : 0

초록 ▼

A refrigeration appliance is provided having at least two refrigeration compartments, each compartment having its own access door. The appliance includes a single evaporator located in a plenum which is selectively in communication with each of the compartments, a single compressor, preferably run by a variable speed motor, and a refrigerant circuit including a series of conduits for providing a flow of refrigerant to the evaporator and compressor. A control determines which of the compartments is demanding cooling and operates the refrigeration device until the detected demand for cooling has been satisfied for the particular compartment. Prior to terminating the operation of the refrigeration device, the control determines if the second compartment is demanding cooling or was within a predetermined temperature range prior to demanding cooling. If either condition exists, the refrigeration device is switched to the second compartment until the demand for cooling therein has been satisfied. The compartments of the refrigerator appliance can be run either in freezer or in fresh food cooling mode as desired, providing convertible refrigerating compartments.

대표청구항 ▼

A method of operating a refrigeration appliance having at least two separate compartments to be cooled and a refrigeration device having a single compressor, a single condenser, and a single evaporator located in a plenum which is in communication with each of said compartments by means of an air damper system, comprising the steps of: (a) detecting whether either of said compartments is demanding cooling; (b) upon detection of a cooling demand by a first compartment, operating said refrigeration device with said air damper system set to direct air flow from said evaporator to said first compartment until the detected demand for cooling has been satisfied; (c) determining if a second compartment is demanding cooling during cooling of said first compartment; (d) if no demand of said second compartment for cooling is made prior to satisfaction of the demand by said first compartment, then returning to step (a); (e) upon demand of said second compartment for cooling prior to satisfaction of the demand by said first compartment, continuing the cooling of said first compartment until obtaining the first to occur of satisfying said demand for cooling by said first compartment or passage of a first preset time period; (f) upon obtaining said first to occur, switching air flow from said evaporator to said second compartment by using said air damper system and initiating cooling of said second compartment until the detected demand for cooling of said second compartment has been satisfied; (g) detecting whether said first compartment is demanding cooling during cooling of said second compartment; (h) if no demand of said first compartment for cooling is made prior to satisfaction of the demand by said second compartment, then returning to step (a); (i) upon demand by said first compartment for cooling prior to satisfaction of the demand by said second compartment, continuing the cooling of said second compartment until obtaining the first to occur of satisfying said demand for cooling by said second compartment or passage of a second preset time period; (j) upon obtaining said first to occur, switching air flow from said evaporator to said first compartment by using said air damper system and initiating cooling of said first compartment until the detected demand for cooling of said first compartment has been satisfied, then returning to step (a).

이 특허를 인용한 특허 (42)

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Gomes, Alberto Regio; Litch, Andrew D.; Wu, Guolian, Refrigerator with variable capacity compressor and cycle priming action through capacity control and associated methods.
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Junge, Brent A., Single evaporator refrigeration system for multi-compartment refrigerator appliance with isolated air flows.
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Control algorithm for dual temperature evaporator system 원문보기

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