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1. 发明专利

HK3291A HEAT EXCHANGER 未知
公开(公告)号：HK3291A
公开(公告)日：1991-01-18
申请号：HK3291
申请日：1991-01-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： YOSHIDA TAKAYUKI , SAKUMA KIYOSHI , SESHIMO YU , HUJII MASAO
IPC分类号： F28D7/00 , F28D9/00 , F28F1/12 , F28F1/30 , F28F1/32 , F28F3/02 , F28F13/00 , F28F13/06 , F28F13/08
摘要： PCT No. PCT/JP86/00521 Sec. 371 Date Aug. 25, 1987 Sec. 102(e) Date Aug. 25, 1987 PCT Filed Oct. 9, 1986 PCT Pub. No. WO87/02762 PCT Pub. Date May 7, 1987.A heat exchanger is disclosed, which comprises a plurality of heat-transfer elements (1) placed side by side each of which has more than one through-hole (3) and which are cyclically bent in a generally trapezoidal waveform in the direction of the flow of a fluid, the bends in one heat-transfer element (1) being out of phase with those in an adjacent heat-transfer element (1) by one-half cycle in such a manner that the main stream of said fluid will flow not through the holes in each of said heat-transfer elements (1) but through the passage formed by adjacent heat-transfer elements (1). This arrangement serves to provide improved heat-transfer characteristics.

2. 发明专利

GB2221528A Heat exchanger 未知
公开(公告)号：GB2221528A
公开(公告)日：1990-02-07
申请号：GB8914911
申请日：1989-06-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAKUMA KIYOSHI , YOSHIDA TAKAYUKI , TEZUKA TOMOHUMI , AOKI KATSUYUKI , YAMADA MAKOTO , HUJII MASAO , MORINUSHI KEN
IPC分类号： F28F1/32
摘要： A fin-and-tube heat exchanger comprises a fin plate, a heat exchanger tube having portions extending through the fin plate, a plurality of fin collars formed in the plate, wherein louvers are provided so as to surround the tube portions except areas nearest to the collars, the louvers are in parallel with one another and project from alternately both surfaces of the plate, the louver which is located at the trailing edge side and at a position near to a central line of the tube bank is longitudinally extended so as to be along the collars and has opposite rising ends extending from the plate slanted toward the corresponding tube portions at an angle of 35 deg or below to the flow direction of the fluid, and the louver which is located at a position nearer to the trailing edge is also longitudinally extended and has opposite rising ends extending from the plate slanted toward the corresponding tube portions at an angle of 35 deg or above to the flow direction of the fluid so that the angle between the rising ends slanted at an angle of 35 deg or above and the rising ends slanted at an angle of 35 or below is 35 deg or below.

3. 发明专利

AU585946B2 HEAT EXCHANGER 未知
公开(公告)号：AU585946B2
公开(公告)日：1989-06-29
申请号：AU5430886
申请日：1986-03-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAKUMA KIYOSHI , FUJII MASAO , TSUKAMOTO IKUO , TANIMURA YOSHIAKI , UMEMURA HIROYUKI , YAMADA MAKOTO , SESHIMO YU
IPC分类号： F28F1/32 , F28D1/053 , F28F13/08
摘要： A heat exchanger comprises a plurality of regularly corrugated fins placed one over another in layers at regular pitches in a back-to-back arrangement so as to form alternate wide and narrow fluid passage between the adjacent corrugated fins, and each having a plurality of small through holes, a plurality of collars formed in a staggered arrangement, and an annular area not having any small through hole and formed so as to surround the root of each collar; and pipes for passing a secondary fluid therethrough, each inserted through the collars of the layers of the corrugated fins. The height of the collar from the lower surface of the annular area corresponds to the pitch between the adjacent corrugated fins, and thereby the corrugated fins can be assembled at regular pitches simply by placing one over another. The pipes are expanded after being inserted through the collars so that the pipes are firmly and closely joined to the collars for satisfactory heat transmission between the fins and the pipes.

4. 发明专利

PH23160A HEAT EXCHANGER WITH CORRUGATED HEAT TRASNFER PLATES 未知
公开(公告)号：PH23160A
公开(公告)日：1989-05-19
申请号：PH33809
申请日：1986-05-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUKOMOTO IKUO , SAKUMA KIYOSHI , TANIMURA YOSIAKI , UMEMURA HIROYUKI , YAMADA MAKOTO , SESHIMO YU , FUJII MASAO
IPC分类号： F28F13/04 , F28B1/00 , F25D21/14
摘要： A heat exchanger comprises a plurality of perforated and regularly corrugated heat transfer plates arranged in a ridge-to-ridge and furrow-to-furrow arrangement, so as to form primary fluid passages each consisting of alternate expanded sections and narrowed sections arranged along the direction of flow of a primary fluid, and a plurality of pipes for passing a secondary fluid therethrough, the pipes penetrating through and across the heat transfer plates. Oblique guide grooves are formed in the surfaces of each heat transfer plates to facilitate the downward flow of the condensate condensed over the surfaces of the heat transfer plates, the grooves being inclined closer to the vertical than to the horizontal to facilitate downward flow of any vapor condensed on the plates from the primary fluid whereby the heat transfer plates dry quickly for efficient heat exchange between the primary and secondary fluids.

5. 发明专利

AU581569B2 MULTIROOM AIR CONDITIONER 未知
公开(公告)号：AU581569B2
公开(公告)日：1989-02-23
申请号：AU7380187
申请日：1987-06-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKASHIMA YASUO , FUKUSHIMA AKIO , TAMARI JUNJI , SAKUMA KIYOSHI , TANIMURA YOSHIAKI , SATO YASUO , IIJIMA HITOSHI , MATSUOKA FUMIO , UMEHARA MITSUO
IPC分类号： F25B5/00 , F25B13/00 , F25B41/04 , F24F3/06 , F24F11/053
摘要： A multiroom air conditioner has a plurality of indoor heat exchangers connected to a single outdoor heat exchanger. A reversible expansion valve is installed on a liquid-side branch pipe for each of the indoor heat exchangers, and a solenoid valve is installed on a gas-side branch pipe for each indoor heat exchanger. Temperature sensors are provided on the liquid-side branch pipes, on the gas-side branch pipes, and on the outlet side during cooling of the outdoor heat exchanger. A pressure sensor or a temperature sensor detects the saturation temperature on the high-pressure side of the compressor. Based on the saturation temperature on the high-pressure side of the compressor, the temperature on the outlet side during cooling of the outdoor heat exchanger, and the temperatures in the liquidside branch pipes, a controller controls the expansion valves so as to obtain a target degree of subcooling during cooling and heating. The controller can also control the expansion valves so that the temperatures in each of the branch pipes are approximately equal to one another.

6. 发明专利

HK72887A CONTROL DEVICE FOR REFRIGERATION CYCLE 未知
公开(公告)号：HK72887A
公开(公告)日：1987-10-16
申请号：HK72887
申请日：1987-10-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUOKA FUMIO , IIJIMA HITOSHI , YAMAZAKI KISUKE , KASAGI HIROSHI , NAKASHIMA YASUO , SAKUMA KIYOSHI , UMEHARA MITSUO
IPC分类号： F25B13/00 , F25B41/04 , F25B41/06 , F25B47/02 , F25B49/02 , G05D23/24 , G05D23/19
摘要： A control device for refrigeration cycle having a compressor 1, a condenser 3, an electrically operated expansion valve 5, an evaporator 6 connected in series, and a by-pass 18 extending from an inlet or an outlet or both of the expansion valve up to an inlet of the compressor through a capillary tube; a first temperature sensor 13 senses a temperature of a cooling medium at the inlet of the compressor; a second temperature sensor 14 senses a temperature of the cooling medium within an intake tubing, through which the cooling medium is taken into the inlet of the compressor; and a microcomputer 12 calculates a super-heat quantity of the cooling medium taken into the compressor on the basis of a difference between the outputs of the first and second temperature sensors, and controls a degree of opening of the electrically operated expansion valve, thereby enabling the refrigeration cycle to be operated at high efficiency and in an energy- saving mode. The speed of the compressor is controlled in dependence upon the difference between actual and desired temperature of a space whose temperature is being controlled.

7. 发明专利

HK72487A AIR CONDITIONING DEVICE 未知
公开(公告)号：HK72487A
公开(公告)日：1987-10-16
申请号：HK72487
申请日：1987-10-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： ADACHI HIROKI , SHIBATA MINORU , FUKUSHIMA AKIO , SONE YASUO , SAKUMA KIYOSHI , KOMAI TAKAO
IPC分类号： F24F1/00 , F24F13/075 , F24F13/20 , F24F5/00
摘要： An air conditioning device for cooling and/or warming a room by introducing thereinto air in the room and heat exchanging the same. The device comprises an outer housing having a top covering wall 1a to face the ceiling, a rear covering wall 1b to face the rear wall surface, and side covering walls 2 to skirt left and right sides of the device. Partition member 3 divides said outer housing interior into an air intake chamber 4 and an air blowing chamber 5, said partition member having mechanical strength, and constituting a skeleton together with said outer walls, 1a, 1b, and 2, 2. A side covering panel 21 is fitted on said side covering walls to cover either or both said side covering walls 2. An air blowing means is provided in said air intake chamber 4 for sending air into said air blowing chamber 5. An air filter 7 is provided in said air intake chamber to remove dust in the air to be taken in by said air blowing means. An air intake grill 6 is provided on the lower surface of said outer housing between said rear covering wall 1b and said partition member 3, said grill being disposed in a freely mountable and dismountable manner. A forward air blowing grill 20 is provided in front of said outer housing. A heat exchanger is provided in said air blowing chamber. A downward air blowing grill is provided on the lower surface of said outer housing between said forward air blowing grill 20 and said heat exchanger 10.

8. 发明专利

GB2107856B AIR CONDITIONING DEVICE 未知
公开(公告)号：GB2107856B
公开(公告)日：1986-03-05
申请号：GB8224882
申请日：1982-09-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： ADACHI HIROKI , SHIBATA MINORU , FUKUSHIMA AKIO , SONE YASUO , SAKUMA KIYOSHI , KOMAI TAKAO
IPC分类号： F24F1/00 , F24F13/075 , F24F13/20 , F24F5/00
摘要： An air conditioning device for cooling and/or warming a room by introducing thereinto air in the room and heat exchanging the same. The device comprises an outer housing having a top covering wall 1a to face the ceiling, a rear covering wall 1b to face the rear wall surface, and side covering walls 2 to skirt left and right sides of the device. Partition member 3 divides said outer housing interior into an air intake chamber 4 and an air blowing chamber 5, said partition member having mechanical strength, and constituting a skeleton together with said outer walls, 1a, 1b, and 2, 2. A side covering panel 21 is fitted on said side covering walls to cover either or both said side covering walls 2. An air blowing means is provided in said air intake chamber 4 for sending air into said air blowing chamber 5. An air filter 7 is provided in said air intake chamber to remove dust in the air to be taken in by said air blowing means. An air intake grill 6 is provided on the lower surface of said outer housing between said rear covering wall 1b and said partition member 3, said grill being disposed in a freely mountable and dismountable manner. A forward air blowing grill 20 is provided in front of said outer housing. A heat exchanger is provided in said air blowing chamber. A downward air blowing grill is provided on the lower surface of said outer housing between said forward air blowing grill 20 and said heat exchanger 10.

9. 发明专利

AU547326B2 CONTROL OF SUPER-HEAT QUANTITY TO COMPRESSOR BY CONTROL OF EXPANSION VALVE 未知
公开(公告)号：AU547326B2
公开(公告)日：1985-10-17
申请号：AU1912883
申请日：1983-09-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUOKA FUMIO , SAKUMA KIYOSHI , UMEHARA MITSUO , IIJIMA HITOSHI , YAMAZAKI KISUKE , KASAGI HIROSHI , NAKASHIMA YASUO
IPC分类号： F25B13/00 , F25B41/04 , F25B41/06 , F25B47/02 , F25B49/02 , G05D23/24 , F25B29/00 , F25B41/00 , F25B49/00
摘要： A control device for refrigeration cycle having a compressor 1, a condenser 3, an electrically operated expansion valve 5, an evaporator 6 connected in series, and a by-pass 18 extending from an inlet or an outlet or both of the expansion valve up to an inlet of the compressor through a capillary tube; a first temperature sensor 13 senses a temperature of a cooling medium at the inlet of the compressor; a second temperature sensor 14 senses a temperature of the cooling medium within an intake tubing, through which the cooling medium is taken into the inlet of the compressor; and a microcomputer 12 calculates a super-heat quantity of the cooling medium taken into the compressor on the basis of a difference between the outputs of the first and second temperature sensors, and controls a degree of opening of the electrically operated expansion valve, thereby enabling the refrigeration cycle to be operated at high efficiency and in an energy- saving mode. The speed of the compressor is controlled in dependence upon the difference between actual and desired temperature of a space whose temperature is being controlled.

10. 发明专利

AU7435581A AIR CONDITIONER 未知
公开(公告)号：AU7435581A
公开(公告)日：1982-04-01
申请号：AU7435581
申请日：1981-08-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAKUMA KIYOSHI , NAKAZIMA ISAMU , SUGIYAMA TETUO
IPC分类号： F24F1/00 , F24F1/02 , F24F1/04 , F24F5/00
摘要： An air conditioner comprises a suction grille for sucking air in the room, a heat exchanger placed near and in the rear of said suction grille, an inner casing which is provided with at least two suction inlets, the second inlet being vertically positioned above the first and faces said heat exchanger such that the distance from said heat exchanger to said second suction inlet which is in the lower position is greater than that from said heat exchanger to said first suction inlet which is in the upper position. First and second multiblade type blowers are placed so as to be respectively facing said first and second suction inlets and first and second air passages are provided for feeding air from said first and second blowers into the outlet of said chamber, said second air passage being provided in the rear of the casing of said first blower.

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