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    • 4. 发明授权
    • Finned assembly for heat exchangers
    • 热交换器翅片组装
    • US5277358A
    • 1994-01-11
    • US38926
    • 1993-03-29
    • Andrew J. CottoneZalman P. Saperstein
    • Andrew J. CottoneZalman P. Saperstein
    • B23K1/00B23K35/00F28D1/053F28F1/12F28F13/12F28F19/06B23K1/19B23K103/10
    • B23K1/0012B23K35/002F28D1/0535F28F1/128F28F13/12F28F19/06
    • Potential difficulties with corrosion in heat exchangers utilizing aluminum fins are avoided by using fin and tube constructions made by a method which includes the steps of providing a flattened tube (50) of ferrous material (80) and having an exterior coating (82) predominantly of aluminum; providing at least one serpentine fin (56) of aluminum (86) and clad with a predominantly aluminum braze cladding (88); assembling (102) the fin (56) to the flattened tube (50); applying (94), (100), (104), a brazing flux to at least one of the fin (56) and the tube (50); raising (106) the temperature of the assembly to a level sufficient to at least partially melt the braze cladding (88); and maintaining the temperature for a sufficient period of time to achieve a brazed joint (60) between the fin (56) and the tube (50) but a time insufficient to convert the coating (82) and the cladding (88) to ferrous-aluminum intermetallic compound or intermediate phase.
    • 通过使用通过一种方法制造的翅片和管构造来避免使用铝翅片的热交换器中的腐蚀的潜在困难,该方法包括以下步骤:提供铁质材料(80)的扁平管(50),并且具有主要为 铝; 提供至少一个铝(86)的蛇形翅片(56)并且以主要为铝的铜焊包层(88)包覆; 将翅片(56)组装(102)到扁平管(50); 向所述翅片(56)和所述管(50)中的至少一个施加(94),(100),(104),钎焊助焊剂。 将组件的温度升高(106)至足以至少部分地熔化钎焊包层(88)的水平; 并且保持温度足够长的时间以实现翅片(56)和管(50)之间的钎焊接头(60),但不足以将涂层(82)和包层(88)转化为含铁 - 铝金属间化合物或中间相。
    • 5. 发明授权
    • Automotive refrigeration system requiring minimal refrigerant
    • 需要最少制冷剂的汽车制冷系统
    • US5265437A
    • 1993-11-30
    • US745514
    • 1991-08-15
    • Zalman P. SapersteinCharles J. Rogers
    • Zalman P. SapersteinCharles J. Rogers
    • B60H1/32F25D17/02F25B1/00
    • F25D17/02B60H1/3229B60H1/323B60H2001/00928
    • The potential for leakage of CFCs, HCFCs, HFCs and HCs to the atmosphere as a result of leakage in vehicular refrigeration systems is reduced by employing conduits (42, 58 and 63) of relatively short length to interconnect closely grouped system components including a compressor (38), a condenser (44) and an evaporator (62). The condenser (44) includes a liquid flow path (46) in heat exchange relation with a refrigerant flow path (48) and the same is connected by conduit (52) to heat exchanger (36). The evaporator (62) also includes a liquid flow path (65) in heat exchange relation with a refrigerant flow path (60) and the same is connected by conduits (66, 67) to at least one heat exchanger (68, 69) remote from an engine compartment (22) in which the compressor (38), condenser (44) and evaporator (62) are housed. The close proximity of the components minimizes the charge of refrigerant required and thus reduces the amount of refrigerant that may potentially leak from the system.
    • 通过使用相对较短长度的导管(42,58和63)将紧密组合的系统部件(包括压缩机)相互连接,从而减少了CFC,HCFCs,HFCs和HC在大气中泄漏的可能性, 38),冷凝器(44)和蒸发器(62)。 冷凝器(44)包括与制冷剂流动路径(48)热交换的液体流路(46),并且其通过导管(52)连接到热交换器(36)。 蒸发器(62)还包括与制冷剂流动路径(60)热交换的液体流动路径(65),并且其通过导管(66,67)与至少一个远离热交换器(68,69)的热交换器 来自容纳压缩机(38),冷凝器(44)和蒸发器(62)的发动机室(22)。 组件的紧密接近使得需要的制冷剂的电荷最小化,从而减少可能从系统泄漏的制冷剂的量。