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公开(公告)号：JPH03230059A
公开(公告)日：1991-10-14
申请号：JP2652890
申请日：1990-02-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： KITAYAMA HIROSHI , KINO AKIHIRO , NAKAGAWA NOBUHIRO , FUJIMOTO RYUZO , TAKATANI TAKAYUKI
IPC: F25B13/00
Abstract: PURPOSE:To enable an operation always keeping a proper operating pressure state to be carried out irrespective of the number of operation of the indoor devices annually by a method wherein a bypassing circuit connecting between an outdoor expansion valve and the second outdoor expansion valve and between a four-way valve and an outdoor heat exchanger and a flow rate controlling mechanism capable of being fully opened arranged in the midway of the bypassing circuit are provided. CONSTITUTION:An outdoor device 14 of a multi-room type air conditioner is comprised of a compressor 2, a four-way valve 3, an outdoor heat exchanger 4, an outdoor expansion valve 5, an outdoor fan 6, the second outdoor expansion valve 15 between an outdoor expansion valve 5 and the outdoor heat exchanger 4, a bypassing circuit 16 connecting the midway part between the four-way valve and the outdoor heat exchanger 4 and the between the outdoor expansion valve 5 and the second outdoor expansion valve 15, and a flow rate controlling mechanism 17 capable of being fully closed and arranged in the midway part of the bypassing circuit 16. In the event that a low volume operation of the indoor device is carried out, a degree of opening of the flow rate controlling mechanism 17 in the bypassing circuit 16 is controlled and at the same time a degree of opening of the second outdoor expansion valve 15 is controlled, thereby a capability of the outdoor heat exchanger 4 is controlled so as to enable a reduction in a high pressure to be restricted for a cooling operation and an increasing of the low pressure to be also restricted for a heating operation.
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公开(公告)号：JPH0363431A
公开(公告)日：1991-03-19
申请号：JP19900189
申请日：1989-07-31
Applicant: MATSUSHITA REFRIGERATION
Inventor： NODA TOSHINORI , NAKAGAWA NOBUHIRO , KITAYAMA HIROSHI
IPC: F24F1/00
Abstract: PURPOSE:To perform an ideal comfortable air conditioning of cold head and hot leg without unpleasant feeling with air flow by diffusing thermally exchanged hot airs of a set windage from upper and lower diffusers at the time of room heating, heating a double floor, then diffusing from an opening, and diffusing cold air upward from an upper diffuser reversely to that at the time of room heating, at the time of room cooling. CONSTITUTION:Cold air is diffused upward from an upper diffuser 17 of an air conditioner at the time of room cooling, collided with a ceiling, and then naturally fed down by own weight of the air. Thus, a very uniform temperature distribution space is provided without unpleasant feeling with the air flow. Most hot air is fed from a lower diffuser 18 to the lower space 25 of a double floor 24 at the time of room heating, and diffused from an opening 26 of the end of the double floor while heating the floor 24. Thus, the hot air is not collided directly with a person in a residence compartment but heats the person from the floor 24 of the lower part of the compartment. Therefore, a very uniform temperature distribution is obtained. Since the residual hot air is diffused from the upper diffuser to a window to prevent a cold draft, air conditioning of high quality is realized due to synergistic effect together with heat radiation from the floor.
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公开(公告)号：JPH0331623A
公开(公告)日：1991-02-12
申请号：JP16598289
申请日：1989-06-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： NODA TOSHINORI , KITAYAMA HIROSHI , NAKAGAWA NOBUHIRO
IPC: F24F1/00 , F24F13/02 , F24F13/068
Abstract: PURPOSE:To raise the temperature of a room from the lower part upward and quickly to a set point as a whole, when its heating is started, by a method wherein an upper outlet for air providing in an indoor machine is positioned close to the ceiling, a lower outlet for air is provided as a part communicating with an underlying space in a double floor, and an opening in the double floor is provided close to a boundary of the room, and the outlet for air is switched according to change of the operation to cooling or heating. CONSTITUTION:In heating, a fan rotates in the normal direction and air near the ceiling 23 is sucked into an upper-outlet-for-air 30. This air undergoes heat exchange at a heat exchanger 27 and the warmed air flows past a lower-outlet-for-air 31 to an underlying space 33 in a double floor 32. The warmed air flows toward an opening 34 at an opposite position while it warms the double floor 32; the warmed air is ejected upward at the opening 34. Thus the heating is effected from the lower part upward and evenly in temperature distribution. In cooling, the fan rotates in reverse; air sent into the opening 34 flows through the void 33 and sent into the machine through the lower-outlet-for-air 31. The air undergoes heat exchange at the heat exchanger 27 and the cold conditioned air is sucked into the fan 28 and ejected from the upper- outlet-for-air 30 horizontally along the ceiling 23. The cold air falls into the living space 24 spontaneously and cools the room 1 to a set temperature.
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公开(公告)号：JPH02247445A
公开(公告)日：1990-10-03
申请号：JP6974089
申请日：1989-03-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： NODA TOSHINORI , KITAYAMA HIROSHI , NAKAGAWA NOBUHIRO
Abstract: PURPOSE:To enable comfortable airconditioning capable of keeping the head cool and the foot warm by installing an upper blowoff port and a lower blowoff port to indoor equipment, connecting said lower blowoff port with a space in a double floor, providing an opening near the end, and blowing a low capacity of high temperature hot air from said lower blowoff port in the early stage of heating, a specified capacity of hot air from the lower blowoff port when a room temperature rises, and the specified capacity of air from the upper blowoff port during cooling. CONSTITUTION:During cooling operation a fan 19 makes a normal rotation by a preset air capacity. Cooled air is discharged from an upper blowoff port 17, passing through a heat exchanger 4 as indicated by dotted lines marked with arrows. The cooled air, after it has cooled a dwelling zone falling from a ceiling 13, is absorbed from a lower blowoff port 18, passing through a space 23 in a double floor 22 from an opening 24. During heating operation, the fan 19 makes a reverse rotation and the hot air is discharged from the opening 24, passing through a lower space 23 in the double floor 22 from the lower blowoff port 18 indicated by the solid line. Since the blowoff air is preset to breeze capacity in the early stage of operation, the air capacity which passes through a heat exchanger 4 is minimized while the temperature of the air discharged from the opening 24 is increased. However, the air returns to the preset air capacity as it approaches the preset temperature so that the hot air heats the double floor when it is passing through.
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公开(公告)号：JPH01169245A
公开(公告)日：1989-07-04
申请号：JP33084987
申请日：1987-12-25
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAGAWA NOBUHIRO
IPC: F24F1/00
Abstract: PURPOSE:To improve distribution of indoor temperature by a method wherein a louver for selecting direction of discharged air is arranged at a central part of an air blowing port of which temperature is adjusted, and an arc-formed guide is arranged along an ornamental plate grill at an outside part of the air blowing port divided by the louver. CONSTITUTION:When heated, almost all air blown from a heat exchanger 7a is blown by a louver 12a from a blowing port 11a in a slant downward direction as a main flow. A part of air blown from the heat exchanger 7a is blown from an opening 17a into a sub-flow air passage 16a and flows along a guide 15a, thereafter it is blown as a sub-flow from an opening 18a in a direction parallel with a ceiling. Then, when cooled, almost all air blown from the heat exchanger 7a is blown by the louver 12a from a blowing port 11a with a shallow angle and flowed along the arc of the guide 15a. A part of the air blown from the heat exchanger 7a is blown from the opening 17a into a sub-air flow passage 16a and after it flows along the guide 15a, it is blown as a sub-flow from the opening 18a in a direction parallel with the ceiling. With these elements, distribution of indoor temperature when heated or cooled is substantially improved.
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Patent Agency Ranking
公开(公告)号：JP2002294245A
公开(公告)日：2002-10-09
申请号：JP2001103251
申请日：2001-04-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： OZAKI HITOSHI , NAKAGAWA NOBUHIRO
Abstract: PROBLEM TO BE SOLVED: To pyrolyze organic compounds in an organic compound heat treatment system by using overheated steam for suppressing the generation of dioxins. SOLUTION: The heat treatment system comprises a treatment chamber 22 accommodating one or more organic compounds 21, oxygen reducing means 32, spouting means 33, overheated steam feeding means 40, and a discharging means 27. The treatment chamber 22 is first made to be virtually devoid of oxygen and then supplied with overheated steam for the pyrolysis of the organic compounds 21 for suppressing the generation of toxic dioxins.
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公开(公告)号：JP2002286228A
公开(公告)日：2002-10-03
申请号：JP2001092511
申请日：2001-03-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAGAWA NOBUHIRO , OZAKI HITOSHI , KAMIHIRA SHUZO
Abstract: PROBLEM TO BE SOLVED: To provide a heating device capable of reducing the cost of heat energy. SOLUTION: A thermal storage material 41 is heated by the energization to a heater 40 to store a predetermined quantity of heat in a thermal storage tank 38, and the heat of the thermal storage material 41 is used to change water to superheated steam. The quantity of water to be fed to the heating tube 39 of the thermal storage tank 38 by a water-feeding means 42 is regulated, and thereby the temperature of the superheated steam in steam piping 45 after passing through the heating tube 39 is regulated. The valve travel of a steam flow control valve 47 provided in the steam piping 45 is adjusted to regulate the quantity of the superheated steam to be fed to a heating chamber 36.
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公开(公告)号：JPH07318115A
公开(公告)日：1995-12-08
申请号：JP10962394
申请日：1994-05-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAGAWA NOBUHIRO
Abstract: PURPOSE:To provide a multi-room cooler/heater in which individually dispersive air-conditioning can be executed by effectively utilizing the existing heat source such as an absorption type chilled and warm water generator, etc. CONSTITUTION:The multi-room cooler/heater comprises a heat source side refrigerant cycle in which a compressor 1, a heat source side heat exchanger 3, a pressure reducing unit and a first auxiliary heat exchanger 8 are annularly coupled, and a user side refrigerant cycle in which a secondary auxiliary heat exchanger 9 formed integrally with the exchanger 8 to heat exchange; a refrigerant conveyor 11, user side heat exchangers 12a, 12b, and a third auxiliary heat exchanger 13 formed integrally with other heat source utilizing heat exchanger 14 for feeding chilled and warm waters to heat exchange are annularly coupled. Further, the cooler/heater comprises water temperature detecting means 18, other heat source utilization deciding means 19 for deciding whether other heat source can be utilized or not based on its output signal, switching means 20 for switching a refrigerant circuit based on its output signal, and actuator driving means 21 for driving the compressor 1, etc.
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公开(公告)号：JPH06147675A
公开(公告)日：1994-05-27
申请号：JP30197492
申请日：1992-11-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： MARUMOTO KAZUHIKO , KURACHI MASAO , NAKAGAWA NOBUHIRO
Abstract: PURPOSE:To provide a comfortable multi-chamber type cooling or heating device preventing a lack of capacity of an indoor device in a system in which each of indoor devices can perform a cooling or a heating operation in an independent manner by a method wherein the refrigerant is prevented from being accumulated in a heat exchanger at a heat source even in the case where a cooling load and a heating load become substantially equal to each other and a pressure reducing device is closed. CONSTITUTION:This multi-chamber type air conditioner comprises a pressure reducing device opening degree sensing means 38 for sensing a degree of opening of a pressure reducing device 23, a three-way valve operating means 39 in which a three-way valve 25 is communicated with an evaporating circuit 26 and a condensing circuit 26' is closed, a surrounding air temperature sensor 40, a suction pressure sensor 41, a pressure comparing means 42 for comparing pressures to each other, and a pressure reducing device fine opening means 43 for adjusting the pressure reducing device 23 to a degree of opening of a specified value.
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公开(公告)号：JPH0682110A
公开(公告)日：1994-03-22
申请号：JP23341992
申请日：1992-09-01
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAGAWA NOBUHIRO , KURACHI MASAO , MARUMOTO KAZUHIKO
Abstract: PURPOSE:To obtain a multi-room air-conditioning apparatus which facilitate the optimum designing of an air-conditioning cycle and obtain an air-conditioning capability always stable without any delay in response when an air-conditioning load varies by allowing room units to accomplish air-conditioning operation individually. CONSTITUTION:A compressor 1, a first auxiliary heat exchanger 19 for heating, a first control valve 20 to control the capacity of the first auxiliary heat exchanger 19 for heating, a first auxiliary heat exchanger 22 for cooling, a second control valve 21 to control the capacity of the first auxiliary heat exchanger 22 for cooling, a decompressor 23 and a heat source side heat exchanger 24 are connected successively to a three-way valve 25 and the decompressor 23 is made to communicate between the first control valve 20 and the second control valve 21. A heat source side refrigerant cycle is provided and in the cycle, an evaporation circuit 26 in which one hand of the three-way valve 25 is made to communicate between the first auxiliary heat exchanger 22 for cooling and the compressor 1 is connected to a condensing circuit 27 in which the other hand of the three-way valve 25 is made to communicate between the compressor 1 and the first auxiliary heat exchanger 19 successively.
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