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1. 发明专利

JPH02112838A FORMING METHOD FOR WIRE 失效
公开(公告)号：JPH02112838A
公开(公告)日：1990-04-25
申请号：JP26395588
申请日：1988-10-21
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： GOTO KOICHIRO , OKUDA KENICHI , WATANABE TAKEHIKO , SAKAI TAKESHI , KOMURO SHIGERU
IPC分类号： B21F1/00
摘要： PURPOSE:To position and form a wire so as not to be peeled off in a short time and with high accuracy by selecting a folding position in accordance with height of the wire which is brought to wiring, offering a bending supporting point, moving horizontally a held part of the wire and forming it. CONSTITUTION:A parts body 12 is carried and fixed to a work position. Subsequently, a stepwise guide 2 is allowed to descend from the upper part, and set as a supporting point of a fixed end part side for forming a wire 1 to a crank shape. Next, a forming device 20 descends against the parts body 12, the wire 1 is inserted and held by chucks 3a, 3b, and thereafter, by operating a first air cylinder 6, a plate cam 4 is moved in the X axis direction and brought into contact with a profile cam 5. When a load is further applied continuously, a compression spring 7 contracts and the plate cam 4 is pressed against the profile cam 5. In this state, when a second air cylinder 8 is operated, the plate cam 4 follows the profile cam 5, and the tip of the wire 1 also draws the same locus as the plate cam 4. Subsequently, the guide 2 and the edge of the chucks 3a, 3b work as a supporting point of the fixed end part side and a supporting point of the free end side, respectively and the wire is formed.

2. 发明专利

JPH07120295A REFRIGERANT WEIGHT MEASURING APPARATUS 失效
公开(公告)号：JPH07120295A
公开(公告)日：1995-05-12
申请号：JP26856793
申请日：1993-10-27
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： KUROSAWA MIKIO , ICHIKAWA KUNIO , KOMURO SHIGERU
IPC分类号： G01F23/60 , G01F23/20 , G01G17/04
摘要： PURPOSE:To provide a refrigerant weight measuring apparatus which can measure easily the accurate refrigerant amount by anyone, irrespective of the specific weight, type of refrigerant, atmospheric temperature, etc. CONSTITUTION:A weight sensor 3 is fixed to a removable flange 2 of an upper part of a measuring apparatus body 1, and a buoyancy inspecting rod 4 in which a spring 10 is mounted at the bottom is installed perpendicularly to the sensor 3 through a guide 9 without trailing.

3. 发明专利

JPH0460356A REFRIGERANT RECOVERY DEVICE 失效
公开(公告)号：JPH0460356A
公开(公告)日：1992-02-26
申请号：JP16666590
申请日：1990-06-27
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： UEDA TOSHIAKI , KOMURO SHIGERU
IPC分类号： F25B45/00
摘要： PURPOSE:To reduce oil spill to recovery device caused by the foaming of accumulated oil in compressor, by delaying the action of switch valve of refrigerant recovery passage connecting the recovery device and refrigerating cycle. CONSTITUTION:Refrigerant recovery device 12 which is used to recover refrigerant from refrigerating cycle 11, is connected with high pressure charging valve 9 and low pressure charging valve 10 through pipings 13 and 14. In pipings 13 and 14 valves 15 and 16 are equipped respectively. When recovery compressor 19 works, electromagnetic valve 15 is opened and after Tmin passed, electromagnetic valve 16 opens. At the moment of delayed Tmin, because the electromagnetic valve 16 is closed, oil in compressor 1 can not spill out through piping 14. Even if foaming of oil in the low pressure side of compressor 1 happens because of decompression, the oil flows out only to evaporator 5 through piping 7 and can not flow out to the recovery device 12.

4. 发明专利

JPH05180541A REFRIGERANT RECOVERY DEVICE 失效
公开(公告)号：JPH05180541A
公开(公告)日：1993-07-23
申请号：JP34439991
申请日：1991-12-26
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： ICHIKAWA KUNIO , KOMURO SHIGERU , ITO TOSHIKATSU , HAYASHI MASAKATSU , HASEGAWA TSUTOMU
IPC分类号： F25B45/00
摘要： PURPOSE:To provide a refrigerant recovery device capable of effectual recovery of refrigerants in many freezing cycles. CONSTITUTION:A refrigerant recovery device includes a recovery device body 30, a plurality of refrigerant recovery passages 2a-2d branched by a branch pipe 6 and valves 3a-3d each serving to open and close the respective passages, and is adapted to be connected with a plurality of freezing cycles to be recovered. Hereby, simultaneous or continuous recovery of refrigerants in a plurality of freezing cycles is ensured to sharply improve recovery efficiency.

5. 发明专利

JPH08145515A RECOVERING DEVICE OF REFRIGERANT 失效
公开(公告)号：JPH08145515A
公开(公告)日：1996-06-07
申请号：JP29090494
申请日：1994-11-25
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： KUROSAWA MIKIO , KOMURO SHIGERU
IPC分类号： F25B45/00
摘要： PURPOSE: To obtain a recovering device of a refrigerant which is excellent in operability and enables easy and accurate measurement of the quantity of the refrigerant at the time of recovery and charging inside the same device, by a method wherein a lift of a weight changing with an increase and decrease of the quantity of a refrigerant liquid is measured by a weight sensor and converted into the weight of the refrigerant liquid. CONSTITUTION: A refrigerant compressed and discharged from a compressor is cooled down and liquefied by a condenser and stored in a recovery vessel. A weight sensor 23 is fitted to a flange fitted to the recovery vessel, being sealed hermetically with a seal member 21 for preventing leakage, and weight 16 for measuring a lift and an elastic body 24 are fitted below the weight sensor 23 vertically therefrom. When the refrigerant reaches a high level H0 in the recovery vessel, a load F0 acting on the weight sensor 23 becomes such as expressed by F0 =W0 +(A0 ×H0 ×ρ), on the occasion, when the horizontal sectional area of the weight 16 is denoted by A0 , the specific gravity of the liquid by ρ and the lift of the elastic body by W0 , and the output F0 at this time is converted into the weight of the refrigerant by a control circuit and indicated in an indicator.

6. 发明专利

JPH091395A MECHANISM FOR SORTING CAN MATERIAL IN WASTE CAN CRUSHER 失效
公开(公告)号：JPH091395A
公开(公告)日：1997-01-07
申请号：JP15435295
申请日：1995-06-21
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KUROSAWA MIKIO , KOMURO SHIGERU
IPC分类号： B30B9/32
摘要： PURPOSE: To continuously sort the material of a crushed waste can by attaching a revolving plate freely rotatably without being interfered by the rotation of a roller. CONSTITUTION: A crushed aluminum can is transported to a rotary plate 6 by means of a turning belt 8 and an extruding plate 7 and magnetically separated by a magnet 5. Unattracted by the magnet 5, the aluminum can is transported to a falling position and dropped into an aluminum can container. A crushed steel can is transported to the rotary plate 6, attracted by the magnet 5 attached to the rotary plate 6, turned halfway round a roller 4 and dropped into a steel can container in the lower part of a mechanism 1 for sorting materials. Since the crushed steel can is transported vertically, its contact area on the rotary plate is large, thereby eliminating erroneous sorting such as fall-off of a can caused by an insufficient magnetic force. The residual liquid is led to a gutter and collected. Thus, the power source may be reduced, enabling to save energy.

7. 发明专利

JPH0961018A REFRIGERANT RECOVERY DEVICE 失效
公开(公告)号：JPH0961018A
公开(公告)日：1997-03-07
申请号：JP22140395
申请日：1995-08-30
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： KOMURO SHIGERU , KUROSAWA MIKIO
IPC分类号： F25B45/00
摘要： PROBLEM TO BE SOLVED: To automatically restart a refrigerant recovery device by providing a restarter for automatically restarting the refrigerant recovery device after the recovery of a refrigerant is finished above the start switch of the refrigerant recovery device. SOLUTION: When a restarter 10 is set above the start switch 8 of a refrigerant recovery device main body 30, a push rod 6 pushes the start switch 8 so that the recovery of a refrigerant is started. As pressure in a refrigerator is lowered, the push rod 6 is gradually raised and isolated from the start switch 8. When the pressure in the refrigerator becomes a negative pressure, a negative pressure detecting switch 31 operates so that the operation of the refrigerant recovery device is stopped. Then, when a certain time passes, the refrigerant dissolved in a lubricating oil is gradually separated and vaporized. When the pressure rises and reaches a positive pressure, the diaphragm 1 of the restarter 10 is deformed, so that the push rod 6 presses the start switch 8. A series of operations of recovery to stop are automatically repeated, so that most of the refrigerant can be recovered to a recovery container 34 and the labor of an operator can be decreased.

8. 发明专利

JPH08178477A REFRIGERANT RECOVERYING DEVICE 失效
公开(公告)号：JPH08178477A
公开(公告)日：1996-07-12
申请号：JP31975594
申请日：1994-12-22
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： KOMURO SHIGERU , KUROSAWA MIKIO
IPC分类号： F25B45/00
摘要： PURPOSE: To enable lubricant oil and refrigerant to be heated at a specified temperature preferable for separation from refrigerant gas by a method wherein an oil separator is arranged between a recoverying port and a compressor and the oil separator is provided with a heater which can be set to an optional temperature for heating the lubricant oil and the refrigerant. CONSTITUTION: A refrigerator and a recoverying port 3 are connected by a connecting hose 30 and communicated from each other so as to discharge air in the connecting hose 30 through an air relief valve 6. After this operation, when an opening or closing valve 7 is opened and a compressor 9 is started to operate, lubricant oil and refrigerant within the refrigerator are passed through the recoverying port 3, a pressure gauge 4, a sight glass 5, the air relief valve 6 and the opening or closing valve 7, sucked into an oil separator 8 and stored there. The lubricant oil and the refrigerant are controlled in their temperatures in such a manner that resolved refrigerant may easily be separated and easily gasified in a range of 35 to 40 deg.C in a constant state. Accordingly, it is possible to recover only the refrigerant gas without being influenced by a temperature of the surrounding air within a short period of time.

9. 发明专利

JPH085205A REFRIGERANT RECOVERY EQUIPMENT 失效
公开(公告)号：JPH085205A
公开(公告)日：1996-01-12
申请号：JP13688094
申请日：1994-06-20
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： KOMURO SHIGERU , KUROSAWA MIKIO
IPC分类号： F25B45/00
摘要： PURPOSE:To measure once the quantity of refrigerant, and fill a proper quantity thereof by a construction wherein a cylindrical measuring unit having a liquid level detecting sensor provided in the vertical direction so as to enable measurement of several sorts of quantities of refrigerant liquid is installed for measuring the necessary quantity of fill on the occasion when the refrigerant stored in a collecting vessel is filled in a closed refrigerating cycle to be filled. CONSTITUTION:A liquid refrigerant stored in a recovery vessel 7 is made to flow into a measuring unit 8 by opening a refrigerant intake valve 9 according to a command signal from a control device 17. In order to make the liquid refrigerant flow in smoothly on the occasion, a gas recovery valve 11 is opened and a refrigerant gas in the upper part of the inside of the measuring unit 8 is sucked from a gas recovery port 22 through the gas recovery valve 11 and a piping 16 by operating a compressor 5 so that the pressure inside the measuring unit 8 be reduced. When a float for detecting a liquid level of the refrigerant rises and turns a reed switch ON, the refrigerant intake valve 9 and the gas recovery valve 11 are closed, the compressor 5 is stopped, a refrigerant takeout valve 9 is opened and filling of a refrigerating cycle 3 is started. The filling is ended, when the float 30 lowers and the reed switch is turned OFF.

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