Cooling system having dual suction port compressor
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-041/04
F25B-039/02
F25B-001/00
F25B-005/04
F25D-011/02
F25B-001/10
출원번호
US-0636442
(2015-03-03)
등록번호
US-9746208
(2017-08-29)
발명자
/ 주소
Wu, Guolian
출원인 / 주소
Whirlpool Corporation
인용정보
피인용 횟수 :
0인용 특허 :
14
초록▼
A cooling system for appliances, air conditioners, and other spaces includes a compressor, and a condenser that receives refrigerant from the compressor. The system also includes an evaporator that receives refrigerant from the condenser. Refrigerant received from the condenser flows through an upst
A cooling system for appliances, air conditioners, and other spaces includes a compressor, and a condenser that receives refrigerant from the compressor. The system also includes an evaporator that receives refrigerant from the condenser. Refrigerant received from the condenser flows through an upstream portion of the evaporator. A first portion of the refrigerant flows to the compressor without passing through a downstream portion of the evaporator, and a second portion of the refrigerant from the upstream portion of the condenser flows through the downstream portion of the evaporator after passing through the upstream portion of the evaporator. The second portion of the refrigerant flows to the compressor after passing through the downstream portion of the evaporator. The refrigeration system may be configured to cool an appliance such as a refrigerator and/or freezer, or it may be utilized in air conditioners for buildings, motor vehicles, or other such spaces.
대표청구항▼
1. A cooling system configured so as to cool an interior space, the cooling system comprising: a compressor;a condenser that receives refrigerant flowing from the compressor;an evaporator that receives refrigerant flowing from the condenser, the evaporator defining upstream and downstream portions,
1. A cooling system configured so as to cool an interior space, the cooling system comprising: a compressor;a condenser that receives refrigerant flowing from the compressor;an evaporator that receives refrigerant flowing from the condenser, the evaporator defining upstream and downstream portions, and wherein refrigerant received from the condenser flows through the upstream portion of the evaporator, a first portion of the refrigerant flowing to the compressor without passing through the downstream portion of the evaporator, a second portion of the refrigerant from the upstream portion flowing through the downstream portion of the evaporator after passing through the upstream portion of the evaporator, the second portion of the refrigerant flowing to the compressor after passing through the downstream portion of the evaporator;a refrigerant expander operably coupled to the condenser and the evaporator and permitting expansion of refrigerant flowing from the condenser to the evaporator. 2. The cooling system of claim 1, wherein: the compressor includes first and second suction ports that receive the first and second portions, respectively, of the refrigerant. 3. The cooling system of claim 2, wherein: refrigerant enters the compressor through the first suction port at a first pressure, and refrigerant enters the compressor through the second suction port at a second pressure that is significantly greater or less than the first pressure. 4. The cooling system of claim 3, wherein: the compressor includes an outlet port that is operably connected to the first and second input ports, and wherein the compressor combines and compresses refrigerant from the first and second suction ports and the combined refrigerant is at a single pressure when flowing from the outlet port. 5. The cooling system of claim 2, wherein: the first suction port is connected to the downstream portion of the evaporator by a first elongated conduit, and the second suction port is connected to the evaporator between the upstream and downstream portion by a second elongated conduit. 6. The cooling system of claim 5, including: first and second valves controlling flow of refrigerant through the first and second elongated conduits, respectively. 7. The cooling system of claim 6, wherein: the evaporator includes upstream and downstream elongated conduits extending through the upstream and downstream portions, respectively, of the evaporator. 8. The cooling system of claim 7, including: a secondary refrigerant expander that expands the second portion of the refrigerant after it passes through the upstream elongated conduit, but before the second portion of the refrigerant passes through the downstream conduit. 9. The cooling system of claim 1, including: a three-way valve having first and second input ports that receive the first and second portions, respectively, of the refrigerant, and an outlet port fluidly connected to the compressor. 10. The cooling system of claim 1, wherein: the upstream and downstream portions of the evaporator are not directly interconnected structurally whereby the upstream and downstream portions of the evaporator can be moved relative to one another prior to mounting the upstream and downstream portions to a refrigerator structure. 11. The cooling system of claim 1, wherein: the upstream and downstream portions of the evaporator comprise upstream and downstream conduits, respectively, wherein the upstream and downstream conduits each include a plurality of linear portions that are interconnected by U-shaped bends, wherein the linear portions of the upstream conduits are disposed in a first plane, and the linear portions of the downstream conduits are disposed in a second plane that is spaced apart from the first plane and parallel to the first plane. 12. The cooling system of claim 11, wherein: the evaporator includes a plurality of fins connected to the upstream and downstream conduits whereby the upstream and downstream conduits are interconnected by the fins. 13. The cooling system of claim 12, wherein: the cooling system comprises an air conditioning unit. 14. A cooling system comprising: a compressor having first and second suction ports that are operably connected to an outlet port so as to compress refrigerant as it flows from the first and second suction ports to the outlet port;a condenser receiving refrigerant flowing from the outlet port of the compressor;an evaporator having an upstream portion having an inlet receiving refrigerant flowing from the condenser, and an outlet, and wherein the evaporator includes a downstream portion having an inlet portion and an outlet portion;a passageway interconnecting the condenser to the inlet of the upstream portion of the evaporator, the passageway having at least a portion thereof that is configured so as to provide for expansion of refrigerant flowing from the condenser to the evaporator;a passageway providing flow of refrigerant through the upstream and downstream portions of the evaporator, the passageway splitting off at least a first portion of the refrigerant that has passed through the upstream portion of the evaporator such that the first portion of the refrigerant flows to the first suction port of the compressor from the upstream portion of the evaporator without passing through the downstream portion of the evaporator, the passageway providing flow of a second portion of the refrigerant through the downstream portion of the evaporator after the refrigerant has passed through the upstream portion of the evaporator;and wherein the passageway provides for flow of refrigerant from the downstream portion of the evaporator to the second suction port of the compressor whereby the second portion of the refrigerant is compressed and flows out of the outlet port. 15. The cooling system of claim 14, wherein: the elongated conduit includes a T-junction between the outlet of the upstream portion of the evaporator and the inlet of the downstream portion of the evaporator, the T-junction splitting flow of refrigerant into the first and second portions. 16. The cooling system of claim 15, wherein: the elongated conduit comprises first and second downstream portions coupled to the inlet and outlet ports, respectively, of the compressor; and including:first and second valves operably connected to the first and second downstream portions, respectively, of the elongated conduit and controlling flow of refrigerant through the first and second downstream portions, respectively, of the elongated conduits. 17. The cooling system of claim 14, including: a structure rigidly interconnecting the upstream and downstream portions of the evaporator. 18. A method of cooling a space, the method comprising: causing a stream of compressed refrigerant to flow through a condenser, whereby a temperature of the compressed refrigerant is reduced;cooling the refrigerant by reducing a pressure of the refrigerant;causing a stream of the cooled refrigerant to flow through a first evaporator conduit and absorb heat after a pressure of the refrigerant is reduced;splitting the stream of refrigerant into first and second portions after the refrigerant flows through the first evaporator conduit;causing the second portion of the stream of refrigerant to flow through a second evaporator conduit and absorb heat;compressing the first and second portions of the stream of refrigerant;combining the first and second portions of the stream of refrigerant to form a single stream of compressed refrigerant. 19. The method of claim 18, including: causing the first and second portions of the stream of refrigerant to have first and second pressures that are not equal. 20. The method of claim 19, including: providing first and second valves;utilizing the first and second valves to control flow of the first and second portions, respectively, of the stream of refrigerant after exiting the evaporator and before compression.
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이 특허에 인용된 특허 (14)
Dawkins Claude W. (4900 NW. 30 St. Oklahoma City OK 73122), Air conditioning apparatus.
Jaster Heinz (Schenectady NY) Bessler Warren F. (Schenectady NY), Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls.
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