Non-hydrocarbon ultra-low temperature system for a refrigeration system
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0015776
(2001-12-17)
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발명자
/ 주소 |
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출원인 / 주소 |
- Kendro Laboratory Products, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
4 |
초록
▼
Methods and apparatus for non-hydrocarbon design of ultra-low temperature refrigeration systems, which are particularly suited a non-hydrocarbon ultra-low temperature refrigeration system that can safely be transported and applied in the field as needed without the risks associated with hydrocarbon
Methods and apparatus for non-hydrocarbon design of ultra-low temperature refrigeration systems, which are particularly suited a non-hydrocarbon ultra-low temperature refrigeration system that can safely be transported and applied in the field as needed without the risks associated with hydrocarbon ultra-low temperature refrigeration system are disclosed. An application of the non-hydrocarbon design of ultra-low temperature refrigeration system method and apparatus to freezers and the like is also disclosed.
대표청구항
▼
Methods and apparatus for non-hydrocarbon design of ultra-low temperature refrigeration systems, which are particularly suited a non-hydrocarbon ultra-low temperature refrigeration system that can safely be transported and applied in the field as needed without the risks associated with hydrocarbon
Methods and apparatus for non-hydrocarbon design of ultra-low temperature refrigeration systems, which are particularly suited a non-hydrocarbon ultra-low temperature refrigeration system that can safely be transported and applied in the field as needed without the risks associated with hydrocarbon ultra-low temperature refrigeration system are disclosed. An application of the non-hydrocarbon design of ultra-low temperature refrigeration system method and apparatus to freezers and the like is also disclosed. t (29), to a tank (30) and rests against a pressure line (19) by a first port (28), which pressure line is connectable to that working chamber (13) of the differential cylinder (10) which is remote from the piston rod via a shut-off valve (17), and having a second hydraulic machine (26) which operates as a pump and as a motor and is connected, by a first port (32), to the pressure line (19) and connectable, by a second port (33), to a tank (30) via a nonreturn valve (34) which opens toward the second port (33) and via a shut-off valve (18) to the piston-rod-side working chamber (14) of the differential cylinder (10), wherein a port of at least one further hydraulic consumer (40, 41, 42, 43) is connectable to the pressure line (19) via a directional control valve (44, 45, 46, 47). 2. The hydraulic drive as claimed in claim 1, wherein displacement of the two hydraulic machines (25, 26) is adjustable. 3. The hydraulic drive as claimed in claim 2, wherein at least one further hydraulic consumer (40, 41, 42, 43) is supplyable with pressure medium from both hydraulic machines (25, 26) via an accumulator valve (55) which lies on the inlet side on the pressure line (19). 4. The hydraulic drive as claimed in claim 3, wherein maximum delivery volumes of the two hydraulic machines (25, 26) are in a ratio a-1, where a is equal to the ratio of the effective pressure faces (15, 16) of the differential cylinder (10). 5. The hydraulic drive as claimed in claim 4, wherein the two hydraulic machines (25, 26) are operated at the same rotational speed, and their displacements are in a ratio a-1. 6. The hydraulic drive as claimed in claim 2, wherein maximum delivery volumes of the two hydraulic machines (25, 26) are in a ratio a-1, where a is equal to the ratio of the effective pressure faces (15, 16) of the differential cylinder (10). 7. The hydraulic drive as claimed in claim 6, wherein the two hydraulic machines (25, 26) are operated at the same rotational speed, and their displacements are in a ratio a-1.
이 특허에 인용된 특허 (4)
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Jill Ellen Oberle ; Thomas Edward Rajewski, Lubricant refrigerant composition for hydrofluorocarbon (HFC) refrigerants.
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Weng Chuan, Multiple stage cascade refrigeration system having temperature responsive flow control and method.
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Nishida Shin,JPX ; Sakakibara Hisayoshi,JPX ; Kuroda Yasutaka,JPX, Refrigerant cycle.
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Backman Thomas J. ; Roomburg James, Series secondary cooling system.
이 특허를 인용한 특허 (6)
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Kelly, Allan; Weng, Chuan, Dual independent chamber ultra-low temperature freezer.
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Yuzawa, Jiro, Freezer unit.
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Oh, Minkyu; Lee, Jangseok; Chung, Myungjin; Jeon, Chanho; Chae, Sunam; Heo, Juyeong; Kim, Kwangwook; Lee, Hoyoun, Refrigerating cycle apparatus and method for operating the same.
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Oh, Minkyu; Lee, Jangseok; Chung, Myungjin; Jeon, Chanho; Chae, Sunam; Heo, Juyeong; Kim, Kwangwook; Lee, Hoyoun, Refrigerating cycle apparatus and method for operating the same.
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Wang, Qi; Swift, Todd; Bair, III, Richard H., Refrigeration system having a variable speed compressor.
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Wang, Qi; Swift, Todd; Bair, Richard, Refrigeration system having a variable speed compressor.
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