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    AIR CONDITIONER
    2.
    发明专利
    AIR CONDITIONER 失效

    公开(公告)号：JPS629130A

    公开(公告)日：1987-01-17

    申请号：JP14757185

    申请日：1985-07-04

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： OGAWA MITSUO

    IPC: F24F1/00

    Abstract: PURPOSE:To make it possible to air-condition a living space of any configuration by providing a wind-diverting damper between the front wind exit and the heat exchanger parallel to the heat exchanger and dividing the wind direction in one direction or in three directions by manipulating the wind diverting damper. CONSTITUTION:A wind-direction diverting damper 30 between the front wind exit 24 and the hat exchanger 20 is provided and at the same time the damper 30 is arranged so that it can be regulated to any desired angle theta. With the wind-direction diverting damper 30 at an arbitrary angle theta, part of the wind from a centrifugal blower 17 collides with the wind-direction diverting damper 30 after it has passed through the heat exchanger 20 and it is diverted at right angle and the air flow is blown out from th right and left wind exits 25 and 26. next, with the angle theta of the wind-direction diverting damper at 0 deg., the wind from the centrifugal blower 17 passes through the heat exchanger 20 and it is discharged in single direction facing the front side as a whole without a large collision loss due to said damper 30.

    OIL EQUALIZING SYSTEM OF PLURAL COMPRESSORS
    7.
    发明专利
    OIL EQUALIZING SYSTEM OF PLURAL COMPRESSORS 失效

    公开(公告)号：JP2001173564A

    公开(公告)日：2001-06-26

    申请号：JP35926999

    申请日：1999-12-17

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： OGAWA MITSUO

    IPC: F04B39/02 ,  F04B41/06 ,  F25B1/00

    Abstract: PROBLEM TO BE SOLVED: To solve the problem that in the case of two low-pressure shell compressors different in displacement, or in the case where one compressor is a variable displacement compressor, the pressure in the shell of the high displacement compressor becomes low, and the pressure in the shell of the low displacement compressor becomes high, so that refrigerator oil moves from the low displacement compressor to the high displacement compressor to decrease the oil quantity of the low displacement compressor. SOLUTION: The vicinity of the standard oil level of the shell of the low displacement compressor 1 and a suction pipe 3 of the high displacement compressor 2 are communicated with each other, oil separated by oil separators 6a, 6b is stored in a storage tank 7. From the bottom of the storage tank 7, one is communicated with a suction pipe 8 of the low displacement compressor, and the other is communicated with the suction pipe 3 of the high displacement compressor to control the oil quantity in the shells of the respective compressors 1, 2 to a proper quantity.

    OIL EQUALIZING SYSTEM FOR PLURAL COMPRESSORS
    8.
    发明专利
    OIL EQUALIZING SYSTEM FOR PLURAL COMPRESSORS 失效

    公开(公告)号：JP2001132642A

    公开(公告)日：2001-05-18

    申请号：JP32055199

    申请日：1999-11-11

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIWAKI SHUNJI ,  OGAWA MITSUO ,  KANEKO TAKASHI ,  KITAYAMA HIROSHI

    IPC: F04B39/02 ,  F04B41/06 ,  F25B1/00

    Abstract: PROBLEM TO BE SOLVED: To regulate a quantity of oil in plural compressors of low pressure type to a proper amount. SOLUTION: This system is equipped with an oil equalizing branch pipe 7 having one end in communication with the vicinity of the standard oil-level height of an compressor 1 and another end in communication with an oil equalizing pipe 6 while having a two-way valve 8 halfway, a discharge side check valve 3 provided on the discharge branch pipe 2 of the compressor 1, a suction side check valve 5 provided on the suction branch pipe 4 of the compressor 1, and a first discharge gas bypass line 11 having one end in communication with a high pressure part located downstream from the discharge side check valve 3 and another end in communication with the downstream side of the suction side check valve 5 on the suction branch pipe 4, and oil shortage of each compressor is prevented by closing the two-way valve 8 during cooling or heating operation and opening the two-way valve 8 if a quantity of oil in a compressor shell is judged to be out of a proper quantity range, in order to regulate the quantity of the oil to a proper one.

    HEAT ACCUMULATIVE AIR CONDITIONER
    9.
    发明专利
    HEAT ACCUMULATIVE AIR CONDITIONER 失效

    公开(公告)号：JPH1038400A

    公开(公告)日：1998-02-13

    申请号：JP19424496

    申请日：1996-07-24

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： AOYAMA SHIGEO ,  NISHIO YASUNORI ,  KURAMOTO TETSUEI ,  OGAWA MITSUO ,  SHIMIZU TOYOKAZU ,  KISHINO MASAHIRO

    IPC: F25B1/00 ,  F25B13/00

    Abstract: PROBLEM TO BE SOLVED: To improve the cooling startability by setting each valve in freezing cycles on utilization side and performing the operation of a refrigerant carrying pump, and besides, setting each valve in freezing cycles on heat source side and performing the operation of a compressor, at start of cooling operation, and fully opening a bypass valve after passage of a specified time. SOLUTION: After start of cooling operation, the setting of each valve in freezing cycles on heat source side is performed, and next the setting of each valve in freezing cycles on utilization side is performed. That is, the first controller Cnt1 opens the first flow control valve RV1 into specified aperture, and fully opens the second flow control valve RV2 and a bypass flow valve RV, and opens the second two-way valve SV2. In addition, it turns on a refrigerant pump PM, and turns on a compressor, and performs the detection of the passage time after start of operation. Then, a liquid refrigerant can be carried to indoor units 12a and 12b, and it can shift smoothly to normal cooling mode, without falling in liquid shortage or gas shortage operation, by fully closing the bypass valve RV, in case that the operation passage time comes to the specified time or over.

    AIR FAN APPARATUS FOR AIR CONDITIONER
    10.
    发明专利
    AIR FAN APPARATUS FOR AIR CONDITIONER 失效

    公开(公告)号：JPH09166349A

    公开(公告)日：1997-06-24

    申请号：JP32678895

    申请日：1995-12-15

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： OGAWA MITSUO ,  KOSHIISHI HIROSHI ,  MORITA MITSURU

    IPC: F24F13/10

    Abstract: PROBLEM TO BE SOLVED: To reduce resistance of air and hence achieve comfortable air conditioning by providing a swing motor, and a coupling rod held on a cam and a fan casing and displaced by the rotation of the perpendicularly to the direction of a rotation axis of a cross flow fan by the rotation of the cam to swing the fan casing. SOLUTION: When a swing motor 13 of a motor mount plate 14 is rotated, a fan casing 8 swings right and left with a vertical blowoff taken as a reference because a bearing plate 11 fixed to the fan casing 8 is directly coupled with a coupling rod 16. Then, when a slit groove 18 provided in a bearing fixing plate 12 and a convex part 19 provided on the motor mount plate 14 are positionally arbitrarily displaced and used, air with the vertical blowoff taken as a reference is changed in its air direction angle for alteration of the air direction. For this, even when an air volume is reduced, it does not form resistance because of no existence of a louver, and the air can reach a floor, and a blowoff angle of the air can be simply set without changing a positional relation between the slit groove 18 and the projecting part 19.

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