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1. 发明专利

JPH08320170A THERMOSTATIC EXPANSION VALVE 失效
公开(公告)号：JPH08320170A
公开(公告)日：1996-12-03
申请号：JP26418995
申请日：1995-10-12
申请人： NIPPON DENSO CO
发明人： KAKEHASHI SHINJI , TOMATSU YOSHITAKA , KINOSHITA HIROSHI , YAMANAKA YASUSHI , FUJIWARA KENICHI
IPC分类号： F16K31/68 , F25B41/06 , G05D23/12
摘要： PURPOSE: To reduce noise caused by vibration of a valve disc of a thermostatic expansion valve by integrally moving a temperature sensitive element and the valve disc following the displacement of a pressure responsive member. CONSTITUTION: Opening of a throttle passage 51 is adjusted and the degree of overheating of a refrigerant at an outlet of an evaporator 21 is adjusted by integrally moving cases 41, 42 of a temperature sensitive element 39 and a valve disc 50 following the displacement of a pressure responsive member (diaphragm) 43 of the temperature sensitive element 39. Accordingly, even when the valve disc 50 vibrates owing to rapid expansion of the refrigerant in the throttle passage 51 and the vibration is transmitted to the cases 41, 42 of the temperature sensitive element 39, the cases 41, 42 are constructed such that they are movable with respect to housing members 31, 32, and the cases 41, 42 are separated from the housing members 31, 32 so that the vibration is substantially prevented from being transmitted to the housing members 31, 32. Hereby, noise due to the vibration is prevented from being transmitted to the outside through the housing members 31, 32.

2. 发明专利

JPH08192619A COLD AND HEAT STORAGE TYPE AIR CONDITIONER 失效
公开(公告)号：JPH08192619A
公开(公告)日：1996-07-30
申请号：JP670595
申请日：1995-01-19
申请人： NIPPON DENSO CO
发明人： TANAKA TAKASHI , SHIROTA YUICHI , SUGI HIKARI , FUJIWARA KENICHI
IPC分类号： B60H1/32 , B60H1/22
摘要： PURPOSE: To cool and heat the napping space of a truck or the like by storing cold and heat in a cold and heat storage material. CONSTITUTION: An evaporator 10 for cold storage is laid in a case 16, and a cold and heat storage pack 23 is provided on the tube surface of the evaporator 10 in close contact therewith. In the summer season, the pack 23 is cooled with the evaporator 10 at the time of a vehicle travel to freeze a hot and cold thermal energy storage material. When the vehicle is parked, a fan 21 is operated to draw the air from a napping space via an intake port 18, and the air is cooled with the pack 23 before being blown to the napping space via a diffuser 19. In the winter, an electrical heater 29 as well as the fan 21 is operated to heat the pack 23 for storing heat in the cold and heat storage material. When the vehicle is parked, the fan 21 is operated and the supply air is heated with the pack 23. The hot air so prepared is circulated to the legs of a person taking a nap via a heating dust 151.

3. 发明专利

JPH0755268A REFRIGERATING MACHINE 失效
公开(公告)号：JPH0755268A
公开(公告)日：1995-03-03
申请号：JP19755793
申请日：1993-08-09
申请人： NIPPON DENSO CO
发明人： INOUE SEIJI , FUJIWARA KENICHI
IPC分类号： F25B1/00 , F25B41/04 , F25B43/02
摘要： PURPOSE:To control the circulation flow rate of lubricating oil corresponding to the flow rate of refrigerant with a simple construction and at low costs. CONSTITUTION:Oil mixing with refrigerant circulates through a refrigerating cycle 2, and a refrigerant pipe 9a connects a refrigerant evaporator 7 and an EPR 8. An oil reservoir 1 to store the oil is mounted on the refrigerant pipe 9a with its opening facing the underside of the pipe wall. The oil reservoir 1 has an enough volume inside to store a specified amount of the oil and communicates with a refrigerant pipe 9b, that connects a refrigerant compressor 3 and the EPR 8, through a thin pipe 13 connected to a discharge port in the bottom of the oil reservoir 1. The length and inside diameter of the thin pipe 13 are designed so that the pipeline resistance of the thin pipe 13 including the oil reservoir 1 is larger than that of the refrigerant flow path of the EPR 8 when a throttle port of the EPR 8 is opened full.

4. 发明专利

JPH0674623A LIQUID RECEIVER FOR DEVICE OF FREEZING CYCLE 失效
公开(公告)号：JPH0674623A
公开(公告)日：1994-03-18
申请号：JP22388392
申请日：1992-08-24
申请人： NIPPON DENSO CO
发明人： MATSUO HIROKI , ISHIKAWA HIROSHI , FUJIWARA KENICHI
IPC分类号： F25B43/00 , F25B49/02
摘要： PURPOSE:To enable a single glass member to be used as a sight glass by a method wherein the sight glass arranged at a receiving part of a main body of a container is pressed and held by a fitting part through a protection member. CONSTITUTION:A press fitting part 19 is formed at a circumferential part of an upper end of a receiving part 16 at a lid member 14. A ring-like rubber member 20 acting as a protection member is arranged at a circumferential edge of an upper surface of a sight glass 18. The sight glass 18 is pressed and held by the press fitting part 19 through the rubber member 20. In this case, the press fitting part 19 is constructed such that an O-ring 17 is compressed under a compression with the sight glass 18 until a sealing function between the sight glass 18 and the receiving part 16 is realized. With such an arrangement, it is possible to fix the sight glass 18 surely to the lid member 14 without damaging the sight glass. Accordingly, the single glass member can be used as the sight glass 18, so that a visibility of the refrigerant can be improved through the sight glass 18 without increasing any cost at all.

5. 发明专利

JPH0618106A REFRIGERATING CYCLE 失效
公开(公告)号：JPH0618106A
公开(公告)日：1994-01-25
申请号：JP17670992
申请日：1992-07-03
申请人： NIPPON DENSO CO
发明人： INAZU HIROSHI , NUMAZAWA SHIGEO , FUJIWARA KENICHI , NISHIDA SHIN
IPC分类号： F25B5/00
摘要： PURPOSE:To inhibit the pressure fluctuation of a refrigerant, and to reduce noises generated at the time of the changeover of solenoid valves by annexing means generating bubbles in the refrigerant on the upstream sides of the solenoid valves in refrigerant flow paths branched from a high-temperature side heat exchanger to a plurality of low-temperature side heat exchangers. CONSTITUTION:When cooling operation is set only to one cooling unit 17, an ECU 12 turns a solenoid valve 23 for one cooling unit 17 on while turning a solenoid valve 23 for the other cooling unit 18 off, and conducts electricity through a magnet clutch 11a for a compressor 11. Consequently, a condenser 13 is supplied with a refrigerant from the compressor 11. Electricity is also conducted through heaters 20 for each cooling unit 17, 18 simultaneously at that time, and the refrigerant intruded into a gas storage section 19 is heated and bubbles are generated. When cooling operation is changed over only to the other cooling unit 18 and set, however, the refrigerant flowing out to an evaporator 21 is interrupted, pressure is suddenly increased. However, bubbles are shrunk with the rise of pressure, thus pressure fluctuation is inhibited.

6. 发明专利

JPH0573987B2 失效
公开(公告)号：JPH0573987B2
公开(公告)日：1993-10-15
申请号：JP21639088
申请日：1988-09-01
申请人： NIPPON DENSO CO
发明人： NAGASHIMA HISAO , SATO HIDEAKI , FUJIWARA KENICHI
IPC分类号： F25B45/00

7. 发明专利

JPH05215261A EVAPORATING PRESSURE REGULATION VALVE 失效
公开(公告)号：JPH05215261A
公开(公告)日：1993-08-24
申请号：JP2256792
申请日：1992-02-07
申请人： NIPPON DENSO CO
发明人： NISHIDA SHIN , MATSUNAGA TAKESHI , FUJIWARA KENICHI
IPC分类号： F16K17/04
摘要： PURPOSE:To prevent fluctuation of set evaporating pressure so as to prevent malfunction such as deterioration of frost prevention effects. CONSTITUTION:A slide valve 5 for regulating the opening of a throttle hole 15, a spring 6 for energizing the slide valve 5 in the direction to close the throttle hole 15, bellows 4 covering the circumference of the spring 6, and a spring 7 for energizing a bellows retainer 24, to which one end of the bellows 4 is connected, and a valve part 23 to make tight contact with each other, are arranged in a refrigerant passage 18 on the primary pressure side in front on the throttle hole 15 partitioned by a cylinder 3. Therefore evaporating pressure is applied only to the pressure receiving part 27 of the bellows retainer 24. And the bellows 4 and the bellows retainer 24 are free from the influence of the pressure behind the throttle hole 15. Thus the springs 6, 7, and the bellows 4 can be downsized, fluctuation of set load is lessened against displacement and then the fluctuation of set evaporating pressure according to the opening of the valve part 23 is also lessened.

8. 发明专利

JPH0579725A MULTIPLE PATH TYPE EVAPORATOR 失效
公开(公告)号：JPH0579725A
公开(公告)日：1993-03-30
申请号：JP26825791
申请日：1991-09-18
申请人： NIPPON DENSO CO
发明人： YAMANAKA YASUSHI , FUJIWARA KENICHI
IPC分类号： F25B39/02
摘要： PURPOSE:To provide a multiple path type evaporator with improved heat exchange capability by uniformly distributing a refrigerant to a plurality of tanks. CONSTITUTION:A refrigerant circulating through a freezing cycle is reduced in its pressure through an expansion valve and introduced into a centrifugal separator in the state of two phases of gas and liquid. A fluid refrigerant separated by the centrifugal separation is driven to flow out into a fluid refrigerant distribution supply pipe 4 and is uniformly distributed from a refrigerant supply port 4a to each tank 2. Further, gaseous refrigerant in which the fluid refrigerant mixes in is driven to flow out into a gaseous refrigerant distribution supply pipe 5 and is uniformly distributed from a refrigerant supply port 5a to each tank 2. The fluid refrigerant and gaseous refrigerant uniformly distributed to each tank 2 is driven to through a refrigerant passage 6 and adapted to absorb heat for its evaporation. They reach the bottom of an evaporator body 1 and is forced to flow into a tank provided upward and flow out of a flow-out pipe 9 toward a compressor.

9. 发明专利

JPH04320771A LIQUID RECEIVER INTEGRAL TYPE CONDENSER 失效
公开(公告)号：JPH04320771A
公开(公告)日：1992-11-11
申请号：JP9073391
申请日：1991-04-22
申请人： NIPPON DENSO CO
发明人： MATSUO HIROKI , SUZUKI TAKAHISA , FUJIWARA KENICHI
IPC分类号： F25B39/04 , F25B43/00
摘要： PURPOSE:To provide a liquid receiver integral type condensor in which gaseous substances are hardly discharged out of a liquid receiving device when a high flow rate of refrigerant is attained and a superior gas-liquid separation of the liquid receiving device can be carried out. CONSTITUTION:A gas-liquid two-phase flow is passed from an upstream side condensor pipe 2 into an part of an intermediate header 4 and flowed out of a lower part of the intermediate header 4 toward a downstream side condensor pipe 2. The gas-liquid tow-phase flow of is branched from the upper part of the intermediate header 4 to the upper part of the liquid receiving device 5 and the gas-liquid two-phase flow is branched within the liquid receiving device 5 under an action of its gravity. Only the separated refrigerant liquid is flowed from the lower part of the liquid receiving device 5 to the lower part of the intermediate header 4. The intermediate header 4 and the liquid receiving device 5 are connected in parallel, a liquid level in the liquid receiving device 5 is interlocked with a variation of an amount of circulating refrigerant, the liquid in the liquid receiving device 5 is supplied from the liquid receiving device 5 to a cyclic operation or recovered.

10. 发明专利

JPH04257670A CONDENSOR INTEGRAL WITH LIQUID RECEPTACLE 失效
公开(公告)号：JPH04257670A
公开(公告)日：1992-09-11
申请号：JP1901191
申请日：1991-02-12
申请人： NIPPON DENSO CO
发明人： MATSUO HIROKI , SUZUKI TAKAHISA , FUJIWARA KENICHI
IPC分类号： F25B39/04 , F25B40/02
摘要： PURPOSE:To keep a superior vapor-liquid separating characteristic even under a high flow rate of refrigerant in a condensor integral with a liquid receptacle capable of saving space. CONSTITUTION:Two-phase flow of gas and liquid is flowed from an upstream side condensor pipe 2 into an upper part of an intermediate header 4 and then the flow is flowed out of a lower part of the intermediate header 4 to a downstream side condensor pipe 2. Two-phase flow of gas and liquid plentiful of gaseous is divided from an upper part of the intermediate header 4 to an upper part of a liquid receptacle 5 and then the two-phase of gas and liquid is separated within the liquid receptacle 5 due to its own weight. Only the separated refrigerant liquid is flowed out from the lower part of the liquid receptacle 5 to the lower part of the intermediate header 4. The intermediate header 4 and the liquid receptacle 5 are connected in parallel and a liquid level in the liquid receptacle 5 is cooperated with a liquid level within the intermediate header 4 cooperating with a variation of an amount of circulating refrigerant and the refrigerant liquid is supplied from the liquid receptacle 5 cyclically or recovered.

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