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91. 发明专利

JPS62288441A MULTICHAMBER AIR CONDITIONER 失效
公开(公告)号：JPS62288441A
公开(公告)日：1987-12-15
申请号：JP13124386
申请日：1986-06-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAJIMA YASUO , FUKUSHIMA AKIO , TAMATOSHI JUNJI , IIJIMA HITOSHI , MATSUOKA FUMIO , UMEHARA MITSUO , SAKUMA KIYOSHI , TANIMURA YOSHIAKI
IPC分类号： F24F11/02
摘要： PURPOSE:To make it possible to appropriately carry out a coolant distribution in a space cooling and heating operation to a plurality of indoor units and to adjust the amount of a coolant only by an accumulator by using expansion valves driven based on an electric signal, and controlling an overcooling degree while taking a balance of the coolant supply to the plurality of indoor units by the expansion valve at the times of space cooling and heating operations. CONSTITUTION:At the time of space cooling, a high pressure gas coolant from a compressor 1 is liquefied by an outdoor heat exchanger 5 and is further cooled by an accumulator heat exchanger 8. Then, the coolant is reduced of its pressure by expansion valves 7a-7c, introduced into indoor heat-exchangers 5a-5c where the coolant is vaporized. such a cycle is formed in which vaporized coolant segments pass through solenoid valves 6a-6v provided in gas side branch pipes 14a-14c, and are joined together and return to the compressor 1 via a four-way valve 2 and an accumulator 4. In this case, the overcooling degree at the outlet of the outdoor heat exchanger 3 is made constant by a temperature sensor 11 at the outlet of the outdoor heat exchanger 3 and at the same time, expansion valves 7a-7c are controlled by a controller 9, so that the temperatures of respective branch circuits are made uniform by temperature sensors 12a-12c.

92. 发明专利

JPS62142994A HEAT EXCHANGER 失效
公开(公告)号：JPS62142994A
公开(公告)日：1987-06-26
申请号：JP28501885
申请日：1985-12-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAKUMA KIYOSHI , TANIMURA YOSHIAKI , YOSHIDA TAKAYUKI
IPC分类号： F28F1/32
摘要： PURPOSE:To prevent a drain from scattering and remove lowering of working efficiency due to suspension by collecting a plurality of through holes of respective heat transfer pipes at the central portion and upper portion and forming a cut portion necessary for internal provision of the heat exchanger to a structure so that the end surface of the cut portion is formed to be a flat straight line. CONSTITUTION:In a heat transfer plate 11a, the positions of holes are set so that a shaping cut line C does not touch through holes 2, and the end surface 8m of a cut portion 8 is formed flat. A primary fluid A which flows through branch flowpaths a1 and a2, is cooled during the space cooling operation, by heat transfer plates 11a, 11b and 11c the temperatures of which have been lowered through a flow pipe 6 of a secondary fluid B and a coupled annular portion 7 to produce dews. The dews gradually grow as the time passes to form large water drops, and successively flow down until they become large particles enough for being blown off by a wind force A without staying on the end surface 8m, and they are collected at the lower part where the wind force A does not affect and then are discharged out of the structure.

93. 发明专利

JPS61282794A HEAT EXCHANGER 失效
公开(公告)号：JPS61282794A
公开(公告)日：1986-12-12
申请号：JP12387685
申请日：1985-06-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： YOSHIDA TAKAYUKI , TANIMURA YOSHIAKI , SAKUMA KIYOSHI , TSUKAMOTO IKUO , SESHIMO YUTAKA , FUJII MASAO , UMEMURA HIROYUKI , YAMADA MAKOTO
IPC分类号： F28F1/32
摘要： PURPOSE:To provide a heat exchanger in which the workability and heat transfer characteristic of heat transfer fins are improved and which is efficient by forming trapezoidal flat portions between rows in the air flowing direction as cut portions in the stage direction of fins, on the centerline in the trapezoidal height direction. CONSTITUTION:Each of heat transfer fins 1 has a plurality of through holes 13, and each pipe 2 penetrates a plurality of heat transfer fins 1. The fins 1 are delivered in the stage direction, and barring portions 10, through holes 13 and the tranpezoidal shape are formed. Thereafter, the fine 1 are cut on he flat portions 3, 4a and 4b positioned on the centerline in the height direction of the trapezoidal form by means of upper and lower cutters 5a and 5b in accordance with the necessary number of rows, and then are cut in a predetermined stage dimension. Thus, the fin cut portions are always made constant, and hence the working precision of the cut portion 8 can be maintained and fine splits (cutting irregularity) can be prevented from occurring.

94. 发明专利

JPS61268991A HEAT EXCHANGING DEVICE 失效
公开(公告)号：JPS61268991A
公开(公告)日：1986-11-28
申请号：JP11171085
申请日：1985-05-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： UMEMURA HIROYUKI , TSUKAMOTO IKUO , SAKUMA KIYOSHI , TANIMURA YOSHIAKI , YAMADA MAKOTO , SESHIMO YUTAKA , FUJII MASAO
IPC分类号： F28F1/32 , F28F13/02
摘要： PURPOSE:To increase heat transfer area and improve heat transfer characteristics by a method wherein a heat transfer body is provided with through holes, whose area ratio with respect to the heat transfer body is changed in accordance with the location thereof in the flow direction of fluid. CONSTITUTION:When the flow amount and the total pressure of fluid, flowing through an expanded flow path and a narrowed flow path, are supposed to be equal, flow speeds at the same section orthogonal to the flow direction A of the fluid are different in the expanded flow path and the narrowed flow path and a pressure difference is generated between one surface side and the other surface side of the same section of the heat transfer body 1, therefore, suction and blow-out of the fluid are realized through the through-holes 2. In this case, temperature boundary layer is thin and heat transfer characteristic is high in an area around a bent section 5 at the upstream side of flow, therefore, the area ratio of through-holes 2 with respect to the heat transfer body 1 may be reduced, the heat transfer area may be large and the heat transfer characteristics may be improved. As the position of the through hole is shifted toward the downstream side of the plate, the diameter of the through-holes 2 is enlarged, therefore, the amounts of suction and delivery of the fluid through the through- holes 2 may be increased and the temperature boundary layer may be thinned. Accordingly, the heat transfer characteristic may be improved as a whole, the heat transfer area may be enlarged and the heat transfer characteristics may become more prominent.

95. 发明专利

JPS61268990A HEAT EXCHANGER 失效
公开(公告)号：JPS61268990A
公开(公告)日：1986-11-28
申请号：JP11170985
申请日：1985-05-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAKUMA KIYOSHI , TANIMURA YOSHIAKI , UMEMURA HIROYUKI , YAMADA MAKOTO , SESHIMO YUTAKA , FUJII MASAO , TSUKAMOTO IKUO
IPC分类号： F28F1/32
摘要： PURPOSE:To reinforce respective heat transfer plates and increase the rigidity of heat exchanger by a method wherein the through holes of respective heat transfer plates are concentrated to the central section of the plates and both end rim sections of the plates are formed with belt-like reinforcing sections having predetermined widths and no hole while extruded reinforcing grooves are provided along the overall length of lengthwise direction of the plates. CONSTITUTION:The belt-like reinforcing sections 7, having predetermined width W and no through hole 2, are provided on the end rim sections of respective heat transfer plates 1a, 1b, 1c of upstream side and downstream side of primary fluid while these belt-like reinforcing sections are provided with the extruded reinforcing grooves 7a along the overall length in the lengthwise direction thereof to reinforce respective heat transfer plates in double and increase the rigidity of heat exchanger after laminating these plates. The end rim sections of the heat transfer plates are located in areas wherein heat transfer coefficient is high originally and accordingly the heat transfer coefficient of the whole of heat transfer plate is not reduced so much even when the through-holes are not provided specially, however, the surface areas thereof are increased by the extruded reinforcing grooves provided for reinforcement while the grooves serve as the guide grooves for the flow down of dew water adhered to respective heat transfer plates.

96. 发明专利

JPS61268987A HEAT EXCHANGER 失效
公开(公告)号：JPS61268987A
公开(公告)日：1986-11-28
申请号：JP11170685
申请日：1985-05-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： TANIMURA YOSHIAKI , SAKUMA KIYOSHI , UMEMURA HIROYUKI , YAMADA MAKOTO , SESHIMO YUTAKA , FUJII MASAO , TSUKAMOTO IKUO
IPC分类号： F28F1/32
摘要： PURPOSE:To improve a heat transfer coefficient by a method wherein respective through holes for heat transfer fluid, flowing from expanded flow path toward narrowed flow path, are formed positively with burring sections respectively at the outlet sides thereof. CONSTITUTION:The sectional area of the expanded flow path 4 is larger than the same of the narrowed flow path 5 and the flow speed of the fluid, flowing through the expanded flow path 4, becomes smaller than the same of the fluid, flowing through the narrowed flow path 5, therefore, a part of the fluid flows from the expanded flow path 4 into the narrowed flow path 5 through the through holes 2 equipped with the burring sections 2a as shown by the arrow signs in the diagram. The burring sections are formed at the outlet side of the heat transfer fluid, therefore, the flow of the fluid may be induced smoothly. Temperature boundary layer is thinned by the inducing inflow of the heat transfer fluid and, therefore, the heat transfer coefficient may be improved. Further, the surface area of the burring sections is added to the surface area of the heat exchanger, therefore, reduction of heat exchanging area in case the heat exchanger is equipped with only the through holes may be prevented.

97. 发明专利

JPS61246530A INDOOR APPARATUS OF AIR CONDITIONER 失效
公开(公告)号：JPS61246530A
公开(公告)日：1986-11-01
申请号：JP8695985
申请日：1985-04-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： OTSUTA KATSUHISA , TANIMURA YOSHIAKI , UMEMURA HIROYUKI
IPC分类号： F24F1/00 , F24F13/22
摘要： PURPOSE:To make uniform the distribution of a quantity of air passing through a heat exchanger and to decrease the noise of a blower by suitably selecting the relative position between the impeller of the blower and the heat exchanger and the direction of the blower. CONSTITUTION:The relative position of a heat exchanger 1 and the impeller 3 of a blower belongs to an upper side region 12b formed by dividing the vertical length of the heat exchanger 1 by an axis (y) 10. Further, the direction of the blower is selected so that an air current blown out of the impeller 3 is directed to a lower side region 12a through an air current passage 13. When the impeller 13 is rotated, the distribution of the flow speed within the blower is zero at the center of a bound vortex 6 and maximum at the outer circumference of the bound vortex 6, and the flow speed decreases in the order of cross air currents 7a, 7b, 7c and 7d. Accordingly, the distribution of the sped of passing air currents of the heat exchanger 1 becomes uniform, and the heat exchange characteristic is improved and the pressure loss is decreased. Further, when the flow-in air current passes through the heat exchanger 1, it flows into the impeller in a laminar flow state, and crosses over the impeller 3, and hence the noise generated from the vane can be remarkably reduced.

98. 发明专利

JPS61119299A Heat pump type clothing dryer 失效
公开(公告)号：JPS61119299A
公开(公告)日：1986-06-06
申请号：JP24152284
申请日：1984-11-15
申请人： Mitsubishi Electric Corp
发明人： SAKUMA KIYOSHI , TANIMURA YOSHIAKI , ENDO MAKOTO , YUYAMA HIROSHI
IPC分类号： E04H1/12 , D06F58/10 , D06F58/28 , F26B21/00

99. 发明专利

JPS61107064A Heat pump device 失效
公开(公告)号：JPS61107064A
公开(公告)日：1986-05-24
申请号：JP22841584
申请日：1984-10-30
申请人： Mitsubishi Electric Corp
发明人： YUYAMA HIROSHI , SAKUMA KIYOSHI , ENDO MAKOTO , TANIMURA YOSHIAKI
IPC分类号： F25B27/02 , F25B13/00 , F25B29/00
CPC分类号： Y02A30/274

100. 发明专利

JPS60138363A REFRIGERATION CYCLE DEVICE 失效
公开(公告)号：JPS60138363A
公开(公告)日：1985-07-23
申请号：JP25028483
申请日：1983-12-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： ENDOU MAKOTO , OKADA TETSUJI , TANIMURA YOSHIAKI , SAKUMA KIYOSHI
IPC分类号： F25B1/00

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