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81. 发明专利

JPS5423240A AIR CONDITIONER 失效
公开(公告)号：JPS5423240A
公开(公告)日：1979-02-21
申请号：JP8837877
申请日：1977-07-25
申请人： HITACHI LTD
发明人： MINOSHIMA YASUO , MATSUDA NORIMOTO , MIYAMOTO SEIGO
IPC分类号： F25B5/00 , F25B1/00 , F25B49/00
摘要： PURPOSE:To make a stable operation under an extensive cooling load condition, by adjusting a control valve of a compressor, a flow control valve of an evaporator and a capacity of a condenser corresponding to room temperature, and also by regulating the flow control valve of the evaporator according to condensing temperature.

82. 发明专利

JPS53138564A MULTITUBULAR TYPE EVAPORATOR OF AIR CONDITIONER 失效
公开(公告)号：JPS53138564A
公开(公告)日：1978-12-04
申请号：JP5347377
申请日：1977-05-10
申请人： HITACHI LTD
发明人： KAWASHIMA KENICHI , ARIMA YOSHIAKI , MIYAMOTO SEIGO , UENISHI AKIRA , SUGINUMA ATSUSHI , ENDOU YOSHIHIDE
IPC分类号： F25B39/02 , F25B41/06 , F28F27/02
摘要： PURPOSE:To improve air-conditioning efficiency, by disposing spiral passages to a short sections of inlet portions for refrigerant of evaporating tubes to provide with necessary flow path resistance, and by discharging and vaporizing refrigerant in the evaporating tubes, in a multitubular system evaporator, such as, a car cooler, etc.

83. 发明专利

JPS531355A DOUBLE EFFECT ABSORPTION TYPE REFRIGERATOR 失效
公开(公告)号：JPS531355A
公开(公告)日：1978-01-09
申请号：JP7551176
申请日：1976-06-28
申请人： HITACHI LTD
发明人： MIYAMOTO SEIGO , TAKEZOE KAZUO , YAHAGI TOSHIO , SUGIMOTO SHIGEO
IPC分类号： F25B15/00
摘要： PURPOSE:To provide a direct contact type heat exchanger in a double effect absorption type refrigerator such that the absorption type refrigerator body can be operated without any trouble and can sufficiently display its proper function.

84. 发明专利

JPS5225341A HEAT PUMPPTYPE AIR CONDITIONING SYSTEM 失效
公开(公告)号：JPS5225341A
公开(公告)日：1977-02-25
申请号：JP10016475
申请日：1975-08-20
申请人： HITACHI LTD
发明人： MIYAMOTO SEIGO , KAWASHIMA KENICHI , MATSUDA AKIMOTO
IPC分类号： B60H1/00 , B60H1/32 , F24F3/044
摘要： PURPOSE:A system which, during warming operation, so works as to raise the air temperature blown into the room with the decrease of the external air temperature, and which reduces the load to the compressor during high cooling load operation.

85. 发明专利

JPH04110220A AUTOMOTIVE AIR CONDITIONER 失效
公开(公告)号：JPH04110220A
公开(公告)日：1992-04-10
申请号：JP22746590
申请日：1990-08-29
申请人： HITACHI LTD
发明人： OTSU HIDEKAZU , MIYAMOTO SEIGO
IPC分类号： B60H1/00 , B60H1/32 , F25B49/02
摘要： PURPOSE:To make a failure diagnosis of a solenoid valve possible in the automotive air conditioner having a condenser fitted with a variable condensing capacity device and a compressor fitted with a variable discharge capacity device by controlling condensing capacity at the time of diagnostic indication of the variable discharge capacity device, and suppressing discharge capacity to the side of a small capacity when its condensing capacity is decreasing. CONSTITUTION:An electric current to flow to a coil 18 is switched according to diagnostic indication for the coil 18 as the variable discharge capacity device of a compressor 12. At this time, a solenoid valve 20 as the variable condensing capacity device of a condenser 13 is turned ON, when thermal load is low, to decrease a condensing capacity. At the time of this state, the amount of the current to flow to the coil 18 is decreased, and the discharge volume of the compressor 12 is controlled to the side of small capacity, making the rise of condensing pressure difficult, preventing the high voltage protective switch provided to a receiver 14 from operating, and enabling a visual diagnosis by the indicated value of the pressure gauge 53 of the solenoid valve 20 as a variable condensing capacity device simultaneously with the diagnosis of the coil 18.

86. 发明专利

JPS6428457A EVAPORATOR 失效
公开(公告)号：JPS6428457A
公开(公告)日：1989-01-31
申请号：JP18102287
申请日：1987-07-22
申请人： HITACHI LTD
发明人： KUDO MITSUO , HAYASHI MASAKATSU , MIYAMOTO SEIGO , SAWAHATA TAKATOMO
IPC分类号： F25B39/02 , F28D1/047
摘要： PURPOSE: To improve a cooling ability of an evaporator by providing a downstream channel sectional partition member upstream side of an end face of a porous flat tube protruding and fixed to an inlet header pipe at an end face of discharge side of the air to be cooled. CONSTITUTION: A channel partition member 8 is provided upstream side of an end face 2a of a porous flat tube 2 projected and fixed to an inlet header pipe 3 at a discharge side of the air to be cooled to partition downstream channel of a header pipe channel section. A refrigerant 5 flows into the pipe 3 so as to be opposed to an air flow A. the refrigerant A becomes a two-phase flow of separated liquid refrigerant 5a having a large specific gravity and gas refrigerant 5b having a small specific gravity. Much refrigerant 5a flows downstream of a gravity side of an inlet pipe and is urged upward by a channel partition member 8. Hence, it is mixed with the refrigerant 5b having fast velocity and accelerated. And, the much liquid refrigerant flows toward the end face 2b of the flat tube at an air inlet side with the refrigerant 5a. Therefore, waste liquid refrigerant which is output of the evaporator without evaporating is reduced.

87. 发明专利

JPS63161359A REFRIGERATOR 失效
公开(公告)号：JPS63161359A
公开(公告)日：1988-07-05
申请号：JP30748286
申请日：1986-12-23
申请人： HITACHI LTD
发明人： FUKUSHIMA TOSHIHIKO , HAYASHI MASAKATSU , MIYAMOTO SEIGO , SAYO KOSAKU , TEZUKA AKIRA
IPC分类号： F25B1/00

88. 发明专利

JPS63150566A EXPANSION VALVE 失效
公开(公告)号：JPS63150566A
公开(公告)日：1988-06-23
申请号：JP29654986
申请日：1986-12-15
申请人： HITACHI LTD
发明人： SAYO KOSAKU , MIYAMOTO SEIGO , TEZUKA AKIRA , EMI KENJI , FUKUSHIMA TOSHIHIKO
IPC分类号： F25B41/06

89. 发明专利

JPS62252890A HEAT EXCHANGER 失效
公开(公告)号：JPS62252890A
公开(公告)日：1987-11-04
申请号：JP9452286
申请日：1986-04-25
申请人： HITACHI LTD
发明人： KUDO MITSUO , HAYASHI MASAKATSU , MIYAMOTO SEIGO , SAWAHATA TAKATOMO
IPC分类号： F28D1/047 , F28F13/18
摘要： PURPOSE:To provide a heat exchanger in which the draining property of condensed water is improved by applying hydrophilic machining to the leeward side end part of a porous tube. CONSTITUTION:A coolant inlet tube 3 and a coolant outlet tube 5 are brazed to the opening end of a porous tube 1, and thereafter a hydrophilic film 20a is coated on the rear end portion of the leeward porous tube 1. When air flows into the heat exchanger from the direction shown by an arrow A, the moisture contained in air is condensed on the porous tube 1 which has been cooled to a temperature lower than the dew point of air by a coolant within the tube and the surfaces of fins 2, and the moisture grows to water drops within the heat exchanger. The water drops 10 are blown together to the leeward side end part of the porous tube in accompaniment with an airstream along the surfaces of the fins. Since a hydrophilic film 20a is coated on the leeward side end part of the porous tube, draining downward of the heat exchanger is excellently carried out along the porous tube. That is, in the vicinity of the porous tube, water film streams along the direction of the leeward tube end and the downward of the longitudinal direction of the porous tube are constantly formed. Waterdrops at the leeward end parts are drained smoothly by being guided by the waterdrops. Hence, waterdrops are prevented from splashing into the compartment of a car in accompaniment with the airstream.

90. 发明专利

JPS6298194A HEAT STORAGE DEVICE 失效
公开(公告)号：JPS6298194A
公开(公告)日：1987-05-07
申请号：JP21717486
申请日：1986-09-17
申请人： HITACHI LTD
发明人： YANATORI MICHIO , MIYAMOTO SEIGO
IPC分类号： F28D20/00 , F28D20/02
摘要： PURPOSE:To improve the heat transfer efficiency and to shorten the heat storage time by providing a partition plate having holes or a partition net within a heat storage vessel containing a heat storage material and reversing the heat storage vessel at the time of storing heat. CONSTITUTION:A partition plate 4 having therein holes 5 or a partition net is provided within a heat storage vessel 1, and in the latter half of a heat storage time zone a substantially solid heat storage material 3 exists at the lower part of the partition plate 4. Under such a condition, a heat storage vessel 1 is rotated as shown by arrows and the upper surface and lower surface are reversed to each other. By this procedure, the lower surface A of the solid heat storage material 3 receives heat mainly from the lower surface side of the heat storage vessel 1 and quickly melts due to the natural convection of a liquefied heat storage material 3. The side surface B' of the solid heat storage material 3 and the upper surface B thereof receive heat given from the side surface of the heat storage vessel 1, and melt. By the above described processings, the solid heat storage material 3 quickly continues to melt by receiving heat in the latter half of the heat storage time zone, and the heat storage time is shortened as a whole. Separation phenomenon into a substance having a high melting point and that having a low melting point with a large content of moisture is relaxed.

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