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1. 发明专利

JPH0472490A SUPERCHARGER FOR ENGINE 失效
公开(公告)号：JPH0472490A
公开(公告)日：1992-03-06
申请号：JP18483690
申请日：1990-07-12
申请人： NIPPON CARBURETER
发明人： MIURA KOJI , ABE TETSUO , KUDO SHUICHI
IPC分类号： F02B33/36 , F04C18/18
摘要： PURPOSE:To suppress the noise of a supercharger during driving by forming the teeth of rotors in such a shape that the tooth faces of the teeth of two rotors are not brought into contact with each other on the side of a closed-in part formed from contact points at the time of the tooth of one rotor being placed on the centerline of two rotors. CONSTITUTION:In the state of the tooth 7 of a rotor 6 being positioned on the centerline Y-Y of two rotors 6, 10 and brought into contact with the teeth 11, 12 of the rotor 10 at contact points C1, C2 on action lines M, N, the tooth faces 11b, 12b of teeth 11, 12 and a tooth root face 14 between these on the side of a closed-in part 15 formed from the contact points C1, C2 are formed into recessed shape compared to the existing faces so as not to be brought into contact with the tooth faces 7a, 7a of the tooth 7. This shape is applied to all teeth 7-9, 11-13 and the tooth root face. This eliminates the compression- expansion phenomenon by sealing air into a closed-in part 15 where volume decrease-increase is repeated, and thereby reduces noise.

2. 发明专利

JPH0221154A CONTROLLING DEVICE FOR BATH 失效
公开(公告)号：JPH0221154A
公开(公告)日：1990-01-24
申请号：JP16986588
申请日：1988-07-07
申请人： NIPPON CARBURETER
发明人： YOKOI HIDEAKI , YASUKAWA HEIHACHI , OMI MASAAKI , MIURA KOJI , SUZUKI SHOICHI
IPC分类号： F24H1/00
摘要： PURPOSE:To allow an adequate amount of water to be heated to a proper temperature without monitoring by furnishing an on-off valve on a water supply pipe, a water level sensor and a temperature sensor in a bath tab, an igniting sensor on a heater, and a control valve, an alarm initiator and a control unit on a fuel pipe respectively. CONSTITUTION:A control device is provided with an on-off valve 8 on a water supply pipe to a bath tab 1, a water level sensor 13 and a temperature sensor in the bath tab 1, an igniting sensor 6 on a heater, and a control valve 10 on a fuel pipe 9 to a combustion apparatus 4 of the heater, an alarm initiator 15 and an electronic type control unit 17. The control unit 17 keeps the on-off valve 8 open according to an electric signal form the water level sensor 13 until the water level in the bath tab 1 reaches a specified level, then opens the control valve 10 according to an electric signal from the temperature sensor 14, and simultaneously starts the combustion apparatus 4 to heat water in the bath tab until the water temperature reaches a specified temperature. When heating is completed, the water level is higher than the specified level or ignition is failed, the control unit 17 makes the alarm initiator 15 operate.

3. 发明专利

JPH0286880A VIBRATION GENERATOR FOR ULTRASONIC WAVE WASHING 失效
公开(公告)号：JPH0286880A
公开(公告)日：1990-03-27
申请号：JP23836088
申请日：1988-09-22
申请人： NIPPON CARBURETER
发明人： MIURA KOJI
IPC分类号： B08B3/12 , B06B1/06
摘要： PURPOSE:To enable the title vibration generator to be utilized for a washing tank which is suitable for size and amount of an article and has different size by providing an ultrasonic wave transfer chamber wherein this chamber is surrounded by a vibrating plate and a main body and the counter face of a vibrating plate is closed by a covering body and also liquid is sealed therein to the surface side of the vibrating plate. CONSTITUTION:A washing tank 7 is placed on the covering body 11 of an ultrasonic wave transfer chamber 4 which is closed by the covering body 11 and sealed with liquid L. A vibrator 5 is excited by an oscillator and washing liquid in the washing tank 7 is vibrated via the vibrating plate 3, liquid L and the covering body 11. Further when the covering body 11 is formed of a soft, extensible and contractible thin film and also the feed and discharge port 12 of liquid L is provided to the ultrasonic wave transfer chamber 4, liquid L is supplied and discharged through the port 12 and the covering body 11 is expanded and contracted. The shape of the covering body 11 is made same as the shape of the bottom wall of the washing tank 7 and thereby both the covering body 11 and the bottom wall are closely stuck and vibration is effectively transferred.

4. 发明专利

JPH01285484A PRIMARY PRESSURE REDUCER FOR SELF-CONTAINED UNDERWATER BREATHING EQUIPMENT 失效
公开(公告)号：JPH01285484A
公开(公告)日：1989-11-16
申请号：JP11642788
申请日：1988-05-13
申请人： NIPPON CARBURETER
发明人： OMI MASAAKI , YASUKAWA HEIHACHI , YOKOI HIDEAKI , MIURA KOJI , SUZUKI SHOICHI
IPC分类号： B63C11/22
摘要： PURPOSE:To maintain the high pressure air of an air bomb to a prescribed pressure by a simple constitution by opening and closing an air guiding passage to a control chamber by a valve body interlocking with the reciprocating movement of a diaphragm through a lever and reducing the pressure to a constant prescribed pressure. CONSTITUTION:A diaphragm 4 partitions the internal part of a pressure reducer main body 3 to a control chamber 5 and a back chamber 6. The high pressure air of an air bomb is reduced to the prescribed pressure according to the differential pressure force between the control chamber 5 and the back chamber 6, the tension of the diaphragm 4, and the balance of the load of a spring 19. The air of the control chamber 5 is fed to a mousepiece from a connecting pipe 18 and an internal pressure is lowered, and then, the diaphragm 4 is moved to the control chamber 5 side to rotate a lever 14 clockwise, thereby, a valve body 15 is opened and the high pressure air is guided to the control chamber 5 from an air guide passage 12. When the internal pressure of the control chamber 5 is raised, the diaphragm 4 is moved to the back chamber 6 side to close the valve body 15, thereby, the internal pressure of the control chamber 5 is maintained to a constant pressure.

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