IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0497623
(2002-12-03)
|
우선권정보 |
BR-0106577(2001-12-04) |
국제출원번호 |
PCT/BR02/000169
(2002-12-03)
|
§371/§102 date |
20040816
(20040816)
|
국제공개번호 |
WO03/048660
(2003-06-12)
|
발명자
/ 주소 |
- Schmid,Alexandre Cury
- Salles,Jose Alberto Correa
|
출원인 / 주소 |
- Multibras S.A. Eletrodomesticos
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
5 |
초록
▼
An evaporator for refrigeration systems, comprising a set of tubes (20) arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid and which are incorporated to and trespass a plurality of fins (10) arranged in multiple rows extending transversally to the directi
An evaporator for refrigeration systems, comprising a set of tubes (20) arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid and which are incorporated to and trespass a plurality of fins (10) arranged in multiple rows extending transversally to the direction of a forced airflow (F). The fins (10), which are incorporated to the first and second tubes (20) are spaced from each other by a larger distance (d), when they are operatively associated with a refrigerating environment, and by a smaller distance (d), when they are operatively associated with a freezing environment. Said distances (d) decrease at each two subsequent tubes (20), until reaching at least the third tube (20), said distance being then maintained at a minimum value for the other subsequent tubes (20).
대표청구항
▼
What is claimed is: 1. An evaporator for refrigeration systems, comprising: a set of tubes arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid; and a plurality of fins, which are incorporated to and trespass the set of tubes, arranged in multiple rows an
What is claimed is: 1. An evaporator for refrigeration systems, comprising: a set of tubes arranged in series, spaced and parallel in relation to each other, carrying a refrigerant fluid; and a plurality of fins, which are incorporated to and trespass the set of tubes, arranged in multiple rows and extending transversally to the direction of a forced airflow that is forced to pass through the evaporator and through an environment to be refrigerated, each row being formed by a plurality of fins arranged substantially parallel to the direction of the forced airflow and incorporated to at least one of said tubes wherein the fins, which are incorporated to the first and second tubes according to the direction of the forced air flow, are spaced from each other by a larger distance, when they are operatively associated with a refrigerating environment, and by a smaller distance, when they are operatively associated with a freezing environment, said distances decreasing at each two subsequent tubes, until reaching at least the third tube, said distance being then maintained at a minimum value for the other subsequent tubes. 2. The evaporator as set forth in claim 1, wherein the distance between the fins incorporated to the first and second tubes varies from 3X to 4X for the fins operatively associated with the refrigerating environment, and from 2X to 3X for the fins operatively associated with the freezing environment, the constant "X" varying from 4 to 7 mm, and the limits for the variation of the distance between the fins associated with each two adjacent tubes decreasing for the two subsequent tubes by a value corresponding to "X" for the fins operatively associated with the refrigerating environment, and corresponding to X/2 for the lower limit, and from X2 to X for the upper limit for the fins operatively associated with the freezing environment, said decrease of the distance occurring until reaching the value "X", which is maintained for the other subsequent tubes, the spacing between the rows of fins varying from X/3 to X/2. 3. The evaporator as set forth in claim 1, wherein the fins of each row have the same dimensions. 4. The evaporator as set forth in claim 3, wherein the fins of each row are arranged according to rectilinear alignments. 5. The evaporator as set forth in claim 1, wherein the fins of each row are incorporated to a respective pair of adjacent tubes. 6. The evaporator as set forth in claim 1, which is simultaneously and operatively associated with a refrigerating environment and with a freezing environment, wherein each row presenting the fins mutually spaced by a distance larger than "X" comprises a set of fins occupying a cross section area corresponding to the cross section area of a respective duct for the return of the forced airflow from the environment to be refrigerated and operatively associated with said set of fins, the distance between the latter being dimensioned as a function of the characteristics of the refrigeration to be imparted to the respective environment to be refrigerated by the respective set of fins. 7. The evaporator as set forth in claim 1, wherein the distance between the fins, which are operatively associated with the refrigerating environment, is about 15 mm for the fins incorporated to the first and to the second tubes, about 10 mm for the fins incorporated to the third and to the fourth tubes, about 7.5 mm for the fins incorporated to the fifth and to the sixth tubes, and about 5 mm for the fins incorporated to the other tubes of the evaporator. 8. The evaporator as set forth in claim 1, wherein the distance between the fins, which are operatively associated with the freezing environment, is about 10 mm for the fins incorporated to the first and second tubes, about 7.5 mm for the fins incorporated to the third, fourth, fifth, and sixth tubes, and about 5 mm for the fins incorporated to the other tubes. 9. The evaporator as set forth in claim 1, wherein the distance between the fins, which are operatively associated with the refrigerating environment, is about 15 mm for the fins incorporated to the first and second tubes, about 10 mm for the fins incorporated to the third and fourth tubes, and about 5 mm for the fins incorporated to the other tubes. 10. The evaporator as set forth in claim 1, wherein the distance between the fins, which are operatively associated with the freezing environment is about 10 mm for the fins incorporated to the first, second, third, and fourth tubes, and about 5 mm for the fins incorporated to the other tubes. 11. The evaporator as set forth in claim 1, wherein the adjacent rows presenting the same distance between the fins have their fins longitudinally offset in relation to the fins of the adjacent rows. 12. The evaporator as set forth in claim 1, wherein the rows of fins maintain a spacing of about 1.75 mm from each other.
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