-
公开(公告)号：JPH085169A
公开(公告)日：1996-01-12
申请号：JP13869794
申请日：1994-06-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： OGAWA MITSUO , TANAKA MASAYUKI , NOMA TOMIYUKI , MORIWAKI SHUNJI , EGUCHI HIROAKI , HAYASHI JUNJI , YABUSHITA AKIHIRO , TAKATANI TAKAYUKI , KURAMOTO TETSUEI
Abstract: PURPOSE:To prevent the level of the refrigerating machine oil of each compressor from being extremely uneven when all of a plurality of compressors operate or even when a part of a plurality of compressors stops. CONSTITUTION:An oil recovering circuit 26 is provided with ends communicating with the closed containers of compressors 10, 11 and 12, other ends communicating with inlet side pipelines 20, 21 and 22, an oil recovering and collecting pipeline 19 provided between both the ends and choke devices 16, 17 and 18 provided between the compressors 10, 11 and 12 and the oil recovering and collecting pipeline 19.
-
公开(公告)号：JPH05346245A
公开(公告)日：1993-12-27
申请号：JP15468392
申请日：1992-06-15
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To provide a very efficient and compact ice accumulating tank in a cycle having an ice accumulating tank of a heat accumulation type air conditioner. CONSTITUTION:In a heat accumulation type air conditioner comprising a primary side cycle which communicates with a heat source side and a secondary side cycle which communicates with a load side, a heat exchanger in a heat accumulating tank is formed of heat transmission tubes 13a and 13b having two or more different tube diameters are connected in parallel, and the heat transmission tubes 13b having a smaller diameter are positioned in the center of the heat transmission tubes 13a having a larger diameter and arranged in an equilateral triangle shape. Thus the air conditioner can be improved in the efficiency and minimized in the size.
-
公开(公告)号：JPH05346244A
公开(公告)日：1993-12-27
申请号：JP15468292
申请日：1992-06-15
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To provide an air conditioner having a heat accumulating tank which is free from a possibility of water leakage occurring during a direct transmission of cold or hot water to a load side, and which is very efficient and very reliable, in a cycle provided with an ice accumulating tank of a heat accumulation type air conditioner. CONSTITUTION:This heat accumulation type air conditioner comprises a primary side cycle communicating with a heat source side and a secondary side cycle communicated with a load side. A primary side heat exchanging block BLa in a heat accumulating tank STR is formed of primary side heat transmission tubes Pa1 and Pa2 connected to each other in parallel through a three-way valve KV2. The three-way valve KV2 is switched in response to a prediction or detection of bridging phenomenon of ice based on an amount of ice manufactured during midnight ice making operation. Accordingly, the bridging phenomenon of ice in the heat accumulating tank STR can be prevented, and therfore, an efficient operation can be obtained.
-
公开(公告)号：JPH05340635A
公开(公告)日：1993-12-21
申请号：JP14534992
申请日：1992-06-05
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To obtain a heat reservoir having a small size and a high efficiency in a cycle having an ice heat storage tank of a heat storage type air conditioner. CONSTITUTION:A heat storage type air conditioner has a primary side cycle communicating with a heat source side and a secondary side cycle communicating with a load side. A second four-way valve 18 is connected to the primary side cycle. Thus, in the case of icemaking, a flowing direction of refrigerant flowing in a primary side heat exchanger 3a in a heat reservoir STR can be switched to be operated, a distribution of icemaking amount becomes uniform, and the reservoir can be reduced in size and enhanced in efficiency.
-
公开(公告)号：JPH04187952A
公开(公告)日：1992-07-06
申请号：JP31860490
申请日：1990-11-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO
IPC: F25B13/00
Abstract: PURPOSE:To obtain an air conditioner having a high efficiency and a high safety by a method wherein a heat storage tank is composed of a primary heat exchanger consisting of plain heat transfer tubes, a secondary heat exchanger consisting of heat transfer tubes whose inside heat transfer areas are increased, and heat storage medium packed in the heat storage tank. CONSTITUTION:A compressor 2, a four-way valve 3, an outdoor-side heat exchanger 4, an expansion valve 5, a changeover valve KV1, a primary heat exchanger 13a of a refrigerant- refrigerant heat exchanger HEX, and a primary heat exchanger 14a in a heat storage tank STR are communicated to form a primary refrigerating cycle. During the night, the changeover valve KV1 of the primary refrigerating cycle is switched to put the refrigerant-refrigerant heat exchanger HEX out of service, and the expansion valve 5 is set at a specified valve lift, so that heat or cold-heat is stored in water as a heat storage medium 16. A secondary refrigerating cycle consists of a secondary heat exchanger 14b in the heat storage tank STR, a refrigerant transfer pump PM and a room-side heat exchanger 17, and the secondary heat exchanger 14b consists of heat transfer tubes P2 whose inside heat transfer areas are increased to reduce heat resistance on the inside of tubes. During the daytime, operation is carried out using the primary refrigerating cycle. The heat storage medium 16 storing cold-heat in the heat storage tank STR speedily exchanges heat with the refrigerant at the secondary heat exchanger 14b, and the refrigerant is transferred to the room-side heat exchanger 17 by the refrigerant transfer pump PM and exchanges heat with the room air.
-
Patent Agency Ranking
公开(公告)号：JP2002095924A
公开(公告)日：2002-04-02
申请号：JP2000288365
申请日：2000-09-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI
Abstract: PROBLEM TO BE SOLVED: To prevent the propagation of bacteria or fungi in a water tank, in an air washer type air cleaning apparatus. SOLUTION: The air cleaning apparatus is equipped with a washing chamber 21 for bringing air and sprayed water into direct contact with each other, a sprayer 22 for spraying water into the washing chamber 21, the water tank 23 provided under the washing chamber 21, a pump 24 for feeding water of the water tank 23 to the sprayer 22, a blower 25 for supplying air into the washing chamber 21 and an eliminator 26 for removing waterdrops flowing out of the washing chamber 21. In this air cleaning apparatus, an ultraviolet generator 27 and a photocatalyst bed 28 are arranged between the washing chamber 21 and the water tank 23 or in the washing chamber 21 to supply clean air while preventing the propagation of bacteria or fungi in the water tank 23.
-
公开(公告)号：JP2001314723A
公开(公告)日：2001-11-13
申请号：JP2000134600
申请日：2000-05-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： MARUMOTO KAZUHIKO , MAEDA MUNEKAZU , KURAMOTO TETSUEI
Abstract: PROBLEM TO BE SOLVED: To provide an air cleaner with which sucked air is brought into contact with fine water droplets and which is capable of maintaining the cleanness of air inside a room even when any change in the conditions of outside the room takes place. SOLUTION: In this air cleaner, the cleanness of air passing through a gas- liquid contact section 3 and a gas-liquid separation section 5 is detected with a cleanness detection means 31 through an air cleanness sensor 21 and on the basis of the result of this detection, water in a water vessel 2 is replaced by clean water with an automatic water replacement means 32.
-
公开(公告)号：JP2001147065A
公开(公告)日：2001-05-29
申请号：JP32800799
申请日：1999-11-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAEDA MUNEKAZU , MARUMOTO KAZUHIKO , KURAMOTO TETSUEI
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerating/defrosting chamber, that minimizes quality deterioration in foods by completing defrosting at specified time, when defrosted food is required, and by counting backward, from the specified time for refrigerating and preserving them as long as possible. SOLUTION: Internal temperature of food is calculated b a food temperature operation means 15 according to a cooling means 3 that cools the food, a heating means 4 that heats the food, and food temperature sensors 13a and 13b for detecting the ambient temperature of the food, the ambient temperature of the food, and the heat transfer characteristics of the food being stored by a storage means 14, defrosting requirement time when the food being subjected to refrigerating and defrosting is defrosted at fixed defrosting atmosphere temperature which is higher than refrigerating one is calculated, by a defrosting requirement time operation means 18 according to the heat transfer characteristics of food, and control is made by an atmosphere temperature control means 19 so that the atmosphere temperature is changed automatically from defrosting temperature to the defrosting atmosphere, one at time when the defrosting requirement time is counted backward from defrosting completion preset time, and defrosting is completed at the defrost completion preset time.
-
公开(公告)号：JP2000088388A
公开(公告)日：2000-03-31
申请号：JP25654798
申请日：1998-09-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAGAWA NOBUHIRO , MARUMOTO KAZUHIKO , KURAMOTO TETSUEI
IPC: F25B13/00
Abstract: PROBLEM TO BE SOLVED: To obtain a multichamber cooler/heater in which provision of heating capacity from an indoor unit under stoppage or thermo-off state is prevented at the time of heating operation while suppressing generation of passing noise of refrigerant. SOLUTION: Indoor side expansion valves 109a, 109b, 109c are fully closed when indoor units 113a, 113b, 113c are under stoppage or thermo-off state. A decision is made whether refrigerant is standing based on the delivery temperature and the temperature difference between the mean refrigerant temperature at outlet of operating indoor units and the refrigerant temperature of indoor units under stoppage or thermo-off state. If refrigerant is standing, the indoor side expansion valves 109a, 109b, 109c are opened by a specified opening for a specified time thus preventing provision of heating capacity from an indoor unit under stoppage or thermo-off state while suppressing generation of passing noise of refrigerant. When refrigerant is standing, heating operation can be sustained by collecting refrigerant.
-
公开(公告)号：JPH11337234A
公开(公告)日：1999-12-10
申请号：JP14899998
申请日：1998-05-29
Applicant: MATSUSHITA REFRIGERATION
Inventor： MARUMOTO KAZUHIKO , NAKAGAWA NOBUHIRO , KURAMOTO TETSUEI
IPC: F25B47/02
Abstract: PROBLEM TO BE SOLVED: To improve comfortability by preventing a sucking pressure of a compressor from dropping below an allowable value during the defrosting to shorten the defrosting time while securing the reliability of the compressor. SOLUTION: A frequency computation control means is provided for an operating compressor. During the defrosting operation, if a sucking pressure detected by a sucking pressure sensor 22 is higher than a predetermined sucking pressure value, the operation frequency of a variable speed compressor 1 is computed with a predetermined discharge pressure value as target. If the sucking pressure detected by the absorption pressure sensor 22 is lower than the predetermined sucking pressure value, the operation frequency of the variable speed compressor 1 is computed with the predetermined sucking pressure value as target.
-
-
-
-
-
-
-
-
-
Search Results
66
records
(took 0.022 seconds)
