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11. 发明专利

JPH01132412A AIR CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPH01132412A
公开(公告)日：1989-05-24
申请号：JP28949887
申请日：1987-11-18
申请人： HITACHI LTD
发明人： YONEDA YOSHIYUKI , GOTO TADASHI , KARASHI SHIGEKI , YAMAKAWA MASATAKE , SAWAHATA TAKATOMO
IPC分类号： F25B29/00 , B60H1/00
摘要： PURPOSE:To make a heat exchanging portion compact while facilitate the regulation of the mixing ratio of warm air/cool air by integrally forming the heat exchanging member of an air heater and the heat exchanging member of an air cooler in a multiple layer form and forming this into a cylindrically wound shape. CONSTITUTION:A refrigerant pipe 17 and a hot water pipe 18 are spirally provided in a vertically-placed spiral cooler/heater 16 which is installed in an air conditioner and in which an evaporator and a heater core are integrally formed. Also, a heat insulating board 19 is placed between both heat transfer pipes 17, 18, and fins 20c, 20h are provided between the heat insulating board 19 and each heat transfer pipe 17, 18. Air flows through these fins 20c, 20h. In order to regulate the quantity of warm air and cool air at the outlet of such cooler/heater 16, warm-air/cool-air regulators 21, 22 are provided. A spiral groove hole (the void portion) 33 is provided in a disk in each of the regulators 21, 22 and, by rotating the regulator 22, the negative detour opening area of the warm air zone is changed to regulate air temperature.

12. 发明专利

JPS6176888A Evaporator 失效
标题翻译：蒸发器
公开(公告)号：JPS6176888A
公开(公告)日：1986-04-19
申请号：JP19669184
申请日：1984-09-21
申请人： Hitachi Ltd
发明人： SAWAHATA TAKATOMO
IPC分类号： F28F1/30 , F25B39/02
CPC分类号： F25B39/02
摘要： PURPOSE:To prevent the heat exchange efficiency from lowering and the ventilation resistance from increasing thereby to make it difficult to freeze by so forming the counter of horizontal fins that condensed water staying on the surfaces fins quickly flows down. CONSTITUTION:In the evaporator of an air conditioner in which fins which carry out a heat exchange with a coolant by making contact with air re horizon tal with respect to the gravitational direction, a triangular cutout 13 having a width 3+ or -1mm and a depth of 3+ or -1mm is formed on the leeward end 12 of fins. Air flows from the left hand to the right hand, and water condensed on the surface of fins falls downward through gaps formed in a louver. However, when the flow speed of air if large, air rides over the louver and flows heavily to the leeward end, and a large quantity of condensed water gathers on the leeward end 12 of the fins and flows down through the cutout 13.
摘要翻译：目的：为了防止热交换效率降低，通风阻力由此增加，使得难以通过形成水平翅片的计数器而冻结，使得停留在表面上的冷凝水迅速地向下流动。构成：在空气调节器的蒸发器中，通过与重力方向接触空气的方式与冷却剂进行热交换的翅片，具有宽度为3+或-1mm的三角形切口13和在散热片的背风端12上形成3+或-1mm的深度。空气从左手流向右手，并且在翅片表面上冷凝的水通过形成在百叶窗中的间隙向下落下。然而，当空气的流速大时，空气越过百叶窗并大量流向背风端，并且大量的冷凝水聚集在散热片的背风端12上并向下流过切口13。

13. 发明专利

JPS58221393A Corrugate type heat exchanger 失效
标题翻译：腐蚀式热交换器
公开(公告)号：JPS58221393A
公开(公告)日：1983-12-23
申请号：JP10387682
申请日：1982-06-18
申请人： Hitachi Ltd
发明人： SAWAHATA TAKATOMO , TOMITA SATORU
IPC分类号： F28F9/18
CPC分类号： F28F9/182
摘要： PURPOSE:To prevent the inclination of a refrigerant collecting tube by a method wherein a projecting part, supporting said tube, is provided by press work to make steps at both left and right side ends of a flat special tubes upon assembling the flat special tubes and the refrigerant collecting tube and brazing them. CONSTITUTION:Both left and right ends of the flat special tubes 1 is worked by pressing so as to make steps by a dimension B in accordance with a specified dimension A to provide the projected part 1b. The long hole 3a of the refrigerant collecting tube 3 has the same configuration as the shape of the flat tube 1 after the step-making work. Next, these flat special tubes 1 and the refrigerant collecting tubes 3 are brazed integrally in a furnace for assembling. Even after the brazing, the refrigerant collecting tubes 3 may be prevented from being inclined by the projecting part 1b of the flat special tubes 1.
摘要翻译：目的：为了防止制冷剂收集管的倾斜，其中通过压力加工提供支撑所述管的突出部分，以在组装平面专用管时在平面专用管的左右两端形成台阶，并且制冷剂收集管并钎焊。构成：平面专用管1的左右两端通过按压进行加工，以便按照规定尺寸A进行尺寸B的步骤以提供突出部1b。制冷剂收集管3的长孔3a与分段作业后的扁平管1的形状相同。接下来，这些扁平的专用管1和制冷剂收集管3一体地钎焊在用于组装的炉中。即使在钎焊之后，可以防止制冷剂收集管3被扁平的专用管1的突出部1b倾斜。

14. 发明专利

JPS58168856A EVAPORATOR 失效
公开(公告)号：JPS58168856A
公开(公告)日：1983-10-05
申请号：JP4893182
申请日：1982-03-29
申请人： HITACHI LTD
发明人： SAWAHATA TAKATOMO , WAKAIRO SEIICHI
IPC分类号： F28F17/00 , F25B39/02

15. 发明专利

JPS5787577A ACCUMULATOR FOR REFRIGERATING PLANT 失效
公开(公告)号：JPS5787577A
公开(公告)日：1982-06-01
申请号：JP16195380
申请日：1980-11-19
申请人： HITACHI LTD
发明人： SAWAHATA TAKATOMO , ICHIKAWA RIYOUICHI
IPC分类号： F25B43/00 , B60H1/32

16. 发明专利

JPH04155163A STACKED EVAPORATOR 失效
公开(公告)号：JPH04155163A
公开(公告)日：1992-05-28
申请号：JP27905890
申请日：1990-10-19
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SAWAHATA TAKATOMO , WATANABE MASAKAZU
IPC分类号： F25B39/02 , F28D1/03
摘要： PURPOSE:To improve the heat-exchange efficiency of the title evapolator, and to increase the cooling capacity thereof, by a method wherein at one part in which the dryness of a refrigerant is small, refrigerant pathways are formed so that a heat transfer area becomes larger, and the other part in which the dryness thereof is large, the refrigerant pathways are formed so that the refrigerant is well mixed. CONSTITUTION:Each tube element 1b for which insert fins 5 are held between tube plates 1a to be refrigerant pathways, or each tube element 1d for which two tube plates 1c wrought in the shape of irregularities are put together, and each corrugated fin 2 are alternately stacked, and thus the title evaporator is formed. The tube elements 1b are arranged on the side of an inlet pipe 3 for a refrigerant, and the tube elements 1d are arranged on the side of an outlet pipe 4 therefor. Since the tube elements 1b in which the insert fins 5 having a large heat transfer area are held for the refrigerant pathways, are located within the range of X, the efficiency of heat-exchange is made larger. On the other hand, although the dryness of the refrigerant on the downstream side is as large as nearly equal to one by evaporation, the deflected flow of the refrigerant is restrained since guides for mixing the refrigerant liquid and the refrigerant gaseous are formed. In ranging the whole of the part of Y, therefore, the heat-exchange between the refrigerant and air is equally performed, and thus the efficiency of the heat--exchanges is improved and the capacity of cooling is increased.

17. 发明专利

JPH0455665A CONDENSER 失效
公开(公告)号：JPH0455665A
公开(公告)日：1992-02-24
申请号：JP16411190
申请日：1990-06-25
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SAWAHATA TAKATOMO , YAMAMOTO MICHITOSHI , WATANABE MASAKAZU
IPC分类号： F25B39/04 , F28F27/02
摘要： PURPOSE:To effectively utilize whole capacity of a condenser during a high load and to prevent lowering of heat exchange capacity by a method wherein an on-off valve and the closing part of a double pipe are arranged to the double pipe part of a header pipe, located in the vicinity of an inlet part for a refrigerant, so that a refrigerant is prevented from flowing in a flat pipe. CONSTITUTION:A small pipe 4 is inserted in an upper header pipe 1a to form a double pipe, and a closed part 5 is located in the header pipe 1a on the outer side of deepmost end part of the small pipe 4. An on-off valve 6 to pass and shut off the flow of a refrigerant is located in the header pipe la on the outer side of the refrigerant inlet part of the small pipe 4. By closing the on-off valve 6, capacity of a condenser is reduced, and by decreasing heat exchange capacity, the delivery pressure and the suction pressure of a variable capacity compressor are prevented from lowering. Running of the compressor is practicable, and a vaporizer is prevented from being iced. By opening the on-off valve 6 during a high load, capacity of the condenser can be entirely effectively utilized. Especially, a refrigerant is guided to a part, spaced away from an inlet part for a refrigerant, by means of the small pipe 4 because of an upper head pipe 1a being a double pipe, and deficiency in a refrigerant is prevented from occurring.

18. 发明专利

JPH03279797A HEAT EXCHANGER 失效
公开(公告)号：JPH03279797A
公开(公告)日：1991-12-10
申请号：JP7688790
申请日：1990-03-28
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： WATANABE MASAKAZU , SAWAHATA TAKATOMO , KITAHARA YUICHI , FUKUSHIMA TOSHIHIKO , YAMAMOTO MICHITOSHI
IPC分类号： F25B39/04 , F28F9/02 , F28F9/18
摘要： PURPOSE:To provide a heat exchanger having a structure in which a flow of heat exchanging fluid is not hindered by a method wherein at least one end of a thermal transmitting pipe is formed into a shape corresponding to an inner side shape of a cross-sectional one of a header. CONSTITUTION:Since a header 21 has a circular cross section, and end part of a thermal transmitting pipe 1 is machined in an arc form corresponding to its inner shape. The thermal transmitting pipe 1 is inserted into an insertion hole 211 arranged in the header 21. The thermal transmitting pipe 1, header 21 and fins 3 are integrally connected to each other by brazing. Since the thermal transmitting pipe 1 is connected along the inner surface shape of the header 21, it does not prohibit the flow of the heat exchanging fluid. As a result, a resistance in a flow passage is not increased and thus it is possible to prevent a reduction in an amount of feeding flow into the thermal transmitting pipe 1 or a disadvantage of non-uniform distribution or the like.

19. 发明专利

JPH02230091A SERPENTINE TYPE HEAT EXCHANGER 失效
公开(公告)号：JPH02230091A
公开(公告)日：1990-09-12
申请号：JP4654389
申请日：1989-03-01
申请人： HITACHI LTD
发明人： SAWAHATA TAKATOMO , INNAMI TAMIO
IPC分类号： F28D1/047 , F28F1/02
摘要： PURPOSE:To prevent the buckling deformation of a heat exchanger, eliminate the collapse of a flat heat transfer tube and prevent the reduction of the amount of exchanging heat by a method wherein the thicknesses of intermediate pillars, nearest to both ends of the flat heat transfer tube, are made thicker than the thickness of other intermediate pillars. CONSTITUTION:In a serpentine type heat exchanger, in which a flat heat transfer tube 1 is bent so as to have a meandering shape and corrugate fins 2 are pinched between the meandered flat tubes, the flat heat transfer tube 1 is provided with a plurality of inner fins 1b or intermediate pillars in the flow passage of fluid, however, the thicknesses (t1), (tn) of the intermediate pillars 1a, which are nearest to both ends of the flat heat transfer tube, are made thicker than the thicknesses (t2), (t3),...(tn-2), (tn-1) of other intermediate pillars. When the flat heat transfer tube 1 is bent so as to have the meandering shape, compression forces, larger than the compression forces applied on the other intermediate pillars, are applied on the intermediate pillars, which are nearest to both ends of the tube 1, however, buckling deformation will never be generated in the intermediate pillars nearest to both ends of the tube 1 in this case. As a result, the outer peripheral parts of both ends of the flat heat transfer tube 1 will never be collapsed, the flow passage of fluid in the tube 1 will never be narrowed whereby the reduction of the amount of exchanging heat may be prevented.

20. 发明专利

JPS6438597A FIN FOR HEAT EXCHANGER 失效
公开(公告)号：JPS6438597A
公开(公告)日：1989-02-08
申请号：JP19245287
申请日：1987-07-31
申请人： HITACHI LTD
发明人： YOKOYAMA MIZUHO , YUKITA HISASHI , SAWAHATA TAKATOMO , KUDO MITSUO
IPC分类号： F28F1/32 , F28F1/12
摘要： PURPOSE:To prevent deformation of louvers during their forming process and make a smooth air flow by a method wherein some small projections made by a drawing work are provided in order to reduce a difference in developed lengths of each of louvers having a difference in steps. CONSTITUTION:A planer surface of a corrugated fin 10 is provided with a repetition of alternative group of louvers with a predetermined stepped pattern of arrangement by some cut and raised louvers 2, 3, 4 and 5 except a part 1 of the plane and the cut and raise margin 1. A part of the fins 10 is contacted with a thermal conducting pipe 6. A drawing force is applied to an entire louver from both longitudinal sides of the louver toward its central part so as to form small projections 7 at the central part of the louver. Small projections 7 are provided in the louver having the shortest developing length under a drawing work, so that it is possible to reduce a difference in developed lengths during a drawing work at both louver 1 and the upper-most louver 2 having a large developed length. Even if the drawing force acting upon the upper-most louver 2 is influenced against the louver 1, this drawing force is adsorbed by the louver 1 so as to restrict any deformation of each of the louvers 1. An edge line of each of small projections 7 is arranged in parallel with an air flowing direction A, so that a smooth air flow can be held.

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