公开(公告)号：US5207270A

公开(公告)日：1993-05-04

申请号：US776776

申请日：1991-10-17

Applicant: Shoichi Yokoyama ,  Hitoshi Motegi ,  Osamu Aoyagi ,  Toshiaki Andoh

Inventor： Shoichi Yokoyama ,  Hitoshi Motegi ,  Osamu Aoyagi ,  Toshiaki Andoh

IPC: F28F1/32

CPC classification number: F28F1/325

Abstract: The fin-tube heat exchanger includes a group of fins arranged parallel to one another at predetermined intervals; cylindrical fin collars formed on each fin at a predetermined column pitch and a predetermined row pitch; and heat transfer tubes extending through the respective fin collars and secured thereto in intimate contact therewith. Seat portions are formed on each fin around the fin collars. A curved protuberance of a generally angular cross-section is formed on the fin adjacent to an outer periphery of each of the seat portions, which has a ridge line of an arcuate or circular shape arranged in concentric relation to the associated fin collar. A plurality of straight protuberances of a generally angular cross-section are formed on each fin adjacent to outer peripheries of the respective seat portions between any two adjacent rows of the fin collars. With this structure, heat transfer performance is improved by a turbulence promoting effect of the straight protuberances. Also an air flow is guided into slip streams behind the heat transfer tubes by the curved protuberances, thereby reducing stagnation zones and increasing the effectively used heat transfer area to improve heat transfer performance.

Abstract translation: 翅片管热交换器包括以预定间隔彼此平行布置的一组翅片; 在每个翅片上以预定的柱间距和预定的行间距形成圆柱形的翅片环; 以及延伸穿过相应的翅片套环并与之紧密接合的传热管。 在翅片周围的每个翅片上形成座部。 在与每个座部的外周相邻的翼片上形成有大致角度的横截面的弯曲突起，该座部具有与相关联的翼片颈圈同心的弓形或圆形的脊线。 在相邻的座部分的外周边的每个翅片上形成有大致角度的横截面的多个直的突起，在任何两相邻的翅片套环之间。 通过这种结构，通过直凸部的湍流促进作用提高了传热性能。 此外，空气流通过弯曲的突起被引导到传热管后面的滑动流中，从而减少停滞区域并增加有效使用的传热面积以改善传热性能。

公开(公告)号：US6000466A

公开(公告)日：1999-12-14

申请号：US649952

申请日：1996-05-16

Applicant: Osamu Aoyagi ,  Shoichi Yokoyama ,  Hitoshi Motegi

Inventor： Osamu Aoyagi ,  Shoichi Yokoyama ,  Hitoshi Motegi

IPC: F28F1/40

CPC classification number: F28F1/40

Abstract: A groove configuration, formed on an inside wall of a heat exchanger tube, has a cross-sectional area varying in the longitudinal direction of the heat exchanger tube. An increased rate of the cross-sectional area is differentiated from a decreased rate of the cross-sectional area by changing the height or top width of a protruding portion, or the depth or bottom width of a recessed portion.

Abstract translation: 形成在热交换器管的内壁上的槽构造具有在热交换器管的纵向方向上变化的横截面面积。 通过改变突出部分的高度或顶部宽度或凹部的深度或底部宽度，横截面积的增加率与横截面积的减小率不同。

公开(公告)号：US5203403A

公开(公告)日：1993-04-20

申请号：US835686

申请日：1992-02-14

Applicant: Shoichi Yokoyama ,  Hitoshi Motegi ,  Toshiaki Andoh

Inventor： Shoichi Yokoyama ,  Hitoshi Motegi ,  Toshiaki Andoh

IPC: F28F1/32

CPC classification number: F28F1/32

Abstract: A plate fin heat exchanger has a group of fins arranged at predetermined intervals so that an air current flows between the respective fins and a group of tubes respectively inserted into and joined to the cylindrical fin collars which are formed in the fin group with a predetermined longitudinal pitch and lateral pitch. Elliptical seats each having a longitudinally extending short axis are respectively provided around the fin collars on the surface of each of the fins, and seat-side ridge portions are respectively formed along the outer peripheries of the seats. A plurality of fin-side ridge portions, each having a longitudinally linearly extending ridge and substantially the same height as that of each of the seat-side ridge portions, are formed in each line of the fin collars outside the seat-side ridge portions on each of the fins. The turbulence promoting effect of the fin-side ridge portions, each having a longitudinally linearly extending ridge, improves the heat transfer efficiency. In addition, the highest portions of the seat-side ridge portions formed between the fin-side ridge portions cause the air current to be controlled by the wake in the tubes so as to decrease the stagnation region, thereby increasing the heat transfer effective area and improving the heat transfer efficiency.

Abstract translation: 板翅式热交换器具有以预定间隔布置的一组翅片，使得气流在各个翅片之间流动，并且一组管分别插入并接合到具有预定纵向的翅片组中的圆柱形翅片轴环 间距和横向间距。 分别具有纵向延伸的短轴的椭圆形座位在每个翼片的表面上的翅片环周围，并且座侧脊部分别沿着座椅的外周形成。 在座椅侧脊部外侧的翅片轴颈的每一条线上形成有多个翅片侧脊部，每个翅片侧脊部具有纵向线性延伸的脊部，并且与座椅侧脊部分的高度基本相同的高度 每个翅片。 每个具有纵向线性延伸的脊的翅片侧脊部的湍流促进效果提高了传热效率。 此外，形成在翅片侧脊部之间的座侧脊部的最高部分通过管中的尾迹来控制气流，从而减小停滞区域，从而增加传热有效面积， 提高传热效率。

公开(公告)号：US06227289B1

公开(公告)日：2001-05-08

申请号：US08745344

申请日：1996-11-08

Applicant: Shoichi Yokoyama ,  Hitoshi Motegi

Inventor： Shoichi Yokoyama ,  Hitoshi Motegi

IPC: F28D104

CPC classification number: F28F1/325

Abstract: A finned heat exchanger characterized by disposing main plural raised portions 24a, 24b, 24c only on one side of the surfaces of fins 11, between heat transfer tubes 13 adjacent in the transverse direction, defining the width Wf of the raised portions 24a, 24b, 24c in the principal direction of air stream at about ⅓ of the distance Wb between adjacent raised portions in the principal direction of an air stream, and disposing grooved insulating means such as slits 31, slots 32, or raised portions 33c, 35, 37 in the portion of the fins where there is a temperature difference between fluids flowing in adjacent heat transfer tubes 13 in the principal direction of air stream, said insulating means disposed on the surface of the fins 11 near the middle of the fins between adjacent heat transfer tubes 13 in the principal direction of the air stream to suppress the conduction of heat through the fins caused by fluids flowing in adjacent heat transfer tubes in the principal direction of air stream, and to effectively enhance the heat exchange capacity and the heat transfer efficiency by the leading edge effect of temperature boundary layer of the slits 31, slots 32, or raised portions 33c, 35, 37.

Abstract translation: 一种翅片式热交换器，其特征在于，仅在翅片11的表面的一侧在横向相邻的传热管13之间设置主要的多个凸起部分24a，24b，24c，限定凸起部分24a，24b的宽度Wf， 24c在空气流的主要方向上在空气流的主要方向上相邻的凸起部分之间的距离Wb的大约1/3处，并且将诸如狭缝31，狭槽32或凸起部分33c，35,37的开槽绝缘装置 在相邻的传热管13中沿着空气流的主要方向流动的流体之间存在温度差的散热片部分，所述绝缘装置设置在相邻的传热管之间的散热片的中间附近的翅片11的表面上 13在空气流的主要方向上，以抑制通过在空气s的主要方向上在相邻的传热管中流动的流体引起的翅片的热传导 通过狭缝31，槽32或凸起部分33c，35,37的温度边界层的前沿效应来有效地提高热交换能力和传热效率。

公开(公告)号：US6142220A

公开(公告)日：2000-11-07

申请号：US941390

申请日：1997-09-30

Applicant: Hitoshi Motegi ,  Shoichi Yokoyama ,  Osamu Aoyagi

Inventor： Hitoshi Motegi ,  Shoichi Yokoyama ,  Osamu Aoyagi

IPC: F28F1/32 ,  F28F27/02 ,  F28F13/00 ,  F28D1/053

CPC classification number: F28F9/0275 ,  F28F1/325 ,  F28F2270/00

Abstract: A finned heat exchanger includes a plurality of elongated fins which are arranged at a predetermined interval in parallel with one another such that air flows between neighboring ones of the fins in a predetermined direction. A plurality of heat transfer tubes which contain refrigerant passing therethrough are orthogonally inserted through the fins so as to be arranged in a plurality of columns on the fins. When the finned heat exchanger is operated for condensation, the heat transfer tubes are provided in two paths in the vicinity of an inlet for the refrigerant and are provided in one path in the vicinity of an outlet for the refrigerant, such that the heat transfer tubes of the one path occupy about 5 to 30% of all the heat transfer tubes.

Abstract translation: 翅片式热交换器包括多个细长翅片，它们以预定的间隔彼此平行地布置，使得空气在预定方向上在相邻翅片之间流动。 包含通过其中的制冷剂的多个传热管通过翅片正交地插入，以便布置在翅片上的多个列中。 当翅片式热交换器运行冷凝时，传热管在制冷剂入口附近的两条路径上设置，并且设置在用于制冷剂的出口附近的一个路径中，使得传热管 的一个路径占据所有传热管的约5至30％。

公开(公告)号：US6082132A

公开(公告)日：2000-07-04

申请号：US248276

申请日：1999-02-11

Applicant: Hironao Numoto ,  Hitoshi Motegi ,  Kiyoshi Sawai

Inventor： Hironao Numoto ,  Hitoshi Motegi ,  Kiyoshi Sawai

IPC: F25B1/00 ,  C09K5/04 ,  C10M107/38 ,  C10M107/44 ,  C10M131/04 ,  C10M171/00 ,  C10N40/30 ,  F04B35/04 ,  F04B39/02 ,  F04C18/02 ,  F04C23/00 ,  F04C27/00 ,  F04C29/02 ,  F25B9/00 ,  F25B31/00

CPC classification number: C10M107/38 ,  C10M107/44 ,  C10M171/008 ,  F04B35/045 ,  F04B39/023 ,  F04C18/0215 ,  F04C23/008 ,  F04C27/003 ,  F04C27/005 ,  F04C29/02 ,  F25B31/002 ,  C10M2201/041 ,  C10M2201/0413 ,  C10M2201/061 ,  C10M2201/0613 ,  C10M2201/062 ,  C10M2201/066 ,  C10M2201/0663 ,  C10M2211/022 ,  C10M2211/044 ,  C10M2213/0623 ,  C10M2217/024 ,  C10M2217/0245 ,  C10M2217/044 ,  C10M2217/0443 ,  C10M2219/022 ,  C10M2223/02 ,  C10M2223/04 ,  C10M2223/049 ,  C10N2220/30 ,  C10N2220/303 ,  C10N2240/30 ,  F04C2210/14 ,  F04C2210/26 ,  F04C2210/266 ,  F05C2251/14 ,  F25B2400/12 ,  F25B9/002

Abstract: An apparatus having a refrigeration cycle using a flammable refrigerant, comprises an oil-free compressor, a condenser, an expansion device and an evaporator, wherein an amount of lubricant in the oil-free compressor is equal to or smaller than 3 cc. With this structure, the charging amount of the flammable refrigerant into the refrigeration cycle can be reduced, and the safety of the apparatus having a refrigeration cycle can be enhanced.

Abstract translation: 具有使用易燃制冷剂的制冷循环的装置包括无油压缩机，冷凝器，膨胀装置和蒸发器，其中无油压缩机中的润滑剂的量等于或小于3cc。 利用这种结构，可以减少进入制冷循环的可燃制冷剂的进料量，并且可以提高具有制冷循环的装置的安全性。