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1. 发明专利

JPH03244921A LEAN BURNING AND HEATING DEVICE 失效
公开(公告)号：JPH03244921A
公开(公告)日：1991-10-31
申请号：JP3823590
申请日：1990-02-21
申请人： HITACHI LTD , NISSAN MOTOR
发明人： TAKAKUSAKI TSUNEHIKO , HASHIMOTO TAKASHI , YOKOYAMA TOSHIAKI , YOSHIDA MASAHIRO , ISHIGAMORI ISAO , NINOMIYA KAZUYOSHI , KUWABARA TAKUO , KONO MINORU
IPC分类号： F23D14/22 , F23C99/00 , F23D11/24 , F23D14/26 , F23Q3/00 , F23Q9/00
摘要： PURPOSE:To provide a stable burning within a main combustion cylinder by a method wherein the first igniting means and the second igniting means are provided, a spark plug is provided as the first igniting means, and a torch burner for use in igniting under an over-amount of fuel is used as the second igniting means. CONSTITUTION:A spark plug 19 acting as the first igniting means is electrically energized and both fuel and oxidization agent are fed into a pilot combustion chamber (f) and then they are ignited. In this case, a supplying rate between fuel and oxidization agent is set to show a value of an over-amount of fuel with an equivalent ratio being more than 1.0. Setting to have a state of over amount of fuel with an equivalent ratio being more than 1.0 causes not-yet burned fuel remained in the pilot combustion chamber to be mixed with the oxidization agent in the main combustion chamber out of an outlet nozzle 20, thereby a stable flame having an appropriate length is formed. After igniting of the torch burner 7 acting as the second igniting means, each of fuel and oxidization agent for the main combustion heating device is fed into a main combustion chamber (g) from a supplying pipe through a fuel supplying injector 6 and an oxidization agent supplying injector (a), resulting in that the fuel and the oxidization agent are mixed in the main combustion chamber and ignited or burned.

2. 发明专利

JPH03244904A BURNER FOR PERFORMING LEAN BURNING 失效
公开(公告)号：JPH03244904A
公开(公告)日：1991-10-31
申请号：JP3823290
申请日：1990-02-21
申请人： HITACHI LTD , NISSAN MOTOR
发明人： ISHIGAMORI ISAO , HASHIMOTO TAKASHI , TAKAKUSAKI TSUNEHIKO , YOSHIDA MASAHIRO , YOKOYAMA TOSHIAKI , NINOMIYA KAZUYOSHI , KUWABARA TAKUO , KONO MINORU
IPC分类号： F23D14/22 , F23C99/00 , F23D11/24
摘要： PURPOSE:To enable air of uniform temperature and high pressure to be stably supplied by a method wherein an inner cylinder is arranged in a combustion chamber so as to divide the combustion chamber into an inner combustion region of the inner cylinder and a passage for mixing air in the inner cylinder. CONSTITUTION:An interior part of a combustion chamber is divided into a combustion region 5 and a mixing air passage 7 by an inner cylinder 4. Both of them are merged from a downstream side near an expansion surface 4b of an outlet of the inner cylinder so as to form a mixing area. At the combustion region 5, fuel supplied from a fuel supplying injector 3 having a predetermined rate and oxidization agent supplied from an oxidization agent supplying chamber 2 through on oxidization agent supplying injector 20 are adjusted to have a state in which they may easily be burned, flow and then a stable combustion flame is formed. With such an arrangement, there is no disturbance of combustion so as to improve an energization characteristic and the combustion is quite stable. Mixing air flows through an oxidization (air) supplying chamber 2, an air supplying hole 2b and a mixing air passage 7 as well as an inner cylinder outlet air hole 2c and further becomes a flow directing toward a central part of the mixing region 6, resulting in that the air is sufficiently mixed with the flame got from the combustion region 5.

3. 发明专利

JPH04204134A STOPPING METHOD OF WIND TUNNEL APPARATUS 失效
公开(公告)号：JPH04204134A
公开(公告)日：1992-07-24
申请号：JP33053090
申请日：1990-11-30
申请人： HITACHI LTD , NISSAN MOTOR
发明人： TAKAKUSAKI TSUNEHIKO , YOSHIDA MASAHIRO , ISHIGAMORI ISAO , HASHIMOTO TAKASHI , TSUBOUCHI KUNIYOSHI , NINOMIYA KAZUYOSHI , KUWABARA TAKUO , KONO MINORU
IPC分类号： G01M9/02
摘要： PURPOSE:To make it possible to restore pressure at the time of stop when a flow-path closing means is omitted by providing a vacuum brake valve, introducing air from a high-pressure gas feeding source through a gas heating part and a nozzle, and stopping a fluid jetting means at a specified time constant. CONSTITUTION:A vacuum brake valve 6 for introducing atmosphere into a low-pressure chamber 3 when an apparatus is stopped is provided. Air for restoring the pressure in the chamber 3 is introduced from a main flow-path pipe 7 from a high-pressure gas feeding system on the upstream side through a lean burning heater 1 and a nozzle 2. An ejector 5 of a fluid jetting means which sets the pressure in the chamber 3 at the constant low-pressure state is stopped at a certain time constant. These parts are associatively operated automatically. When the apparatus is stopped, the pressure in the chamber 3 and the air from the valve 6 and the high-pressure-gas feeding system are used together during the period from the stopping command of the ejector 5 to the complete stopping. Thus the apparatus can be smoothly stopped without the breakdown of the ejector 5.

4. 发明专利

JPH03244905A COAXIAL INJECTOR FOR BURNER 失效
公开(公告)号：JPH03244905A
公开(公告)日：1991-10-31
申请号：JP3823390
申请日：1990-02-21
申请人： HITACHI LTD , NISSAN MOTOR
发明人： YOKOYAMA TOSHIAKI , HASHIMOTO TAKASHI , TAKAKUSAKI TSUNEHIKO , YOSHIDA MASAHIRO , ISHIGAMORI ISAO , NINOMIYA KAZUYOSHI , KUWABARA TAKUO , KONO MINORU
IPC分类号： F23D14/22 , F23D11/24 , F23L1/00
摘要： PURPOSE:To prevent adhering of a flame and to enable a burn loss of a burner to be prevented by a method wherein an outlet end of an inner injector device is projected out of an outlet end of an outer injector device. CONSTITUTION:Fuel is supplied from a passage 5 and injected into a combustion chamber 9 through an orifice 4 arranged on an injector 2. Ignition is carried out by an ignition device, oxidization agent is supplied from a passage 6, injected into the combustion chamber 9 through an injector 3 and then a hot combustion gas can be attained. Accordingly to the preferred embodiment, fuel injected from the injector device 2 is mixed with oxidization agent injected from the injector device 3, the outlet end 3a of the injector device is projected out of the outlet end 2a of the injector device, resulting in that a flame is hardly adhered to the outlet end and thus it has an effect that a burn loss can be prevented.

5. 发明专利

JPH03244906A COAXIAL INJECTOR FOR BURNER 失效
公开(公告)号：JPH03244906A
公开(公告)日：1991-10-31
申请号：JP3823490
申请日：1990-02-21
申请人： HITACHI LTD , NISSAN MOTOR
发明人： YOKOYAMA TOSHIAKI , HASHIMOTO TAKASHI , TAKAKUSAKI TSUNEHIKO , YOSHIDA MASAHIRO , ISHIGAMORI ISAO , NINOMIYA KAZUYOSHI , KUWABARA TAKUO , KONO MINORU
IPC分类号： F23D14/22 , F23D11/24 , F23L1/00
摘要： PURPOSE:To enable an accurate setting of a combustion gas temperature to be attained by a method wherein a flow rate of fuel is set by an orifice arranged on an external injector device constituting a coaxial injector device. CONSTITUTION:Fuel is supplied from a passage 5 and injected into a combustion chamber 9 through an orifice 4 arranged on an injector device 2. Ignition is carried out with an igniter 8, oxidization agent is supplied through a passage 6, injected into a combustion chamber 9 through an injector device 3 and then a hit combustion gas can be attained. The fuel is metered by an orifice which is machined under a high precision manner and of which hole area and shape are well controlled and so an accuracy of flow rare is high. Accordingly, an accuracy of combustion gas temperature is high. A flow rate of the gas can be varied by varying an area of on orifice hole, and a temperature of the combustion gas can also be varied. Arranging a hole at a forget position on the orifice 4 cause the fuel to be uniformly injected.

6. 发明专利

JP2004205396A Radioactive waste sorter 审中-公开
公开(公告)号：JP2004205396A
公开(公告)日：2004-07-22
申请号：JP2002376229
申请日：2002-12-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIGAMORI ISAO , TAKAKUSAKI TSUNEHIKO , INOUE KATSUHISA
IPC分类号： G21F9/30 , B07B1/28 , B07B9/00 , B07C5/344 , B07C5/346 , B09B5/00
摘要： PROBLEM TO BE SOLVED: To provide a radioactive waste sorter capable of sorting efficiently the waste wherein all sorts of articles which are different in a radiation dose rate, the quality of material, the shape and the size are jointed together into respective articles having a high or low radiation dose rate, or into combustibles and noncombustibles.
SOLUTION: A waste mixture is sorted respectively into extremely small, small, medium and large articles by a vibrating screen 1. The extremely small articles are stored in a combustible container 5. The small articles are sorted into metals and combustibles by a color difference sorter 2, and the combustibles are stored in the combustible container 5 and the metals are stored in a noncombustible container 7. The medium articles are sorted into metals and combustibles by a dose rate sorter 32, and the combustibles are stored in the combustible container 5 and the metals are stored in a noncombustible container 6. The large articles are sorted into metals and combustibles by an image recognition sorter 4, and the combustibles are stored in the combustible container 5 and the metals are stored in the noncombustible container 7. Resultantly, the combustibles are stored in the combustible container 5, and the metals having a high dose rate are stored in the noncombustible container 6, and the metals having a low dose rate are stored in the noncombustible container 7.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JPH08334432A FREE-PISTON-TYPE IMPACT WIND TUNNEL DEVICE AND MANUFACTURE THEREOF, AND NOZZLE THROAT THEREOF 失效
公开(公告)号：JPH08334432A
公开(公告)日：1996-12-17
申请号：JP14027995
申请日：1995-06-07
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： YAMAGUCHI SHIZUKA , KOJIMA YOSHIYUKI , TAKAKUSAKI TSUNEHIKO , YOSHINO TOMOYA , ITAMI HIROYUKI , NAKANO SUSUMU , MATSUDA KENSHO
IPC分类号： G01M9/02
摘要： PURPOSE: To provide a free-piston-type impact wind tunnel device and manufacture thereof, and the nozzle throat thereof in which a high-durability heat resisting nozzle throat of a thermal stress relieving type that is excellent in heat resistance and heat-shock resistance and capable of operating in a high heat flow velocity region is used. CONSTITUTION: In the wind tunnel device, a hollow cylindrical nozzle throat 33 at the end of an impact wave tube 26 that is exposed to a high velocity air current and subjected to thermal stresses is made of a high strength material at high temperature and is provided with a plurality of splits on its inner circumferential surface, and also a heat-resisting material 7 is filled in the entire or inner circumferential surface of the slits so as to form a smooth inner circumferential surface.

8. 发明专利

JPH08313391A DIAPHRAGM FOR SHOCK TUBE 失效
公开(公告)号：JPH08313391A
公开(公告)日：1996-11-29
申请号：JP11812795
申请日：1995-05-17
申请人： HITACHI LTD
发明人： KIMURA YOSHIKAZU , NAKANO SUSUMU , TAKAKUSAKI TSUNEHIKO , YOSHINO TOMOYA , ITAMI HIROYUKI
IPC分类号： G01M9/02 , G01M9/04
摘要： PURPOSE: To make the reproducibility of membrane rupture pressure and an air current excellent and make the setting of membrane rupture pressure possible by providing the center part of a diaphragm of constant thickness with a groove with constant depth and constant width to the groove bottom flat and parallel to the groove machined surface. CONSTITUTION: A groove 2 intersecting in a cross is machined at the center part of a diaphragm 1. This groove 2 has constant depth and constant width to the groove bottom, and the groove bottom has flat rectangular cross section parallel to the groove machined surface. In the case of the material and plate thickness of the diaphragm 1 being the same, the rupture pressure of the diaphragm 1 can be changed by changing the plate thickness of the groove bottom. Driving pressure can thereby be set to the specified pressure by using the diaphragm 1 with groove part prate thickness, ruptured in correspondence with the driving pressure of the driving gas of a free piston type impact wind tunnel, as a first diaphragm.

9. 发明专利

JPH08309305A METHOD AND APPARATUS FOR CLEANING INSIDE OF TUBE 失效
公开(公告)号：JPH08309305A
公开(公告)日：1996-11-26
申请号：JP11812895
申请日：1995-05-17
申请人： HITACHI LTD
发明人： NAKANO SUSUMU , TAKAKUSAKI TSUNEHIKO , KIMURA YOSHIKAZU , ITAMI HIROYUKI , YOSHINO TOMOYA
IPC分类号： G01M9/00 , B08B9/04 , B08B9/053
摘要： PURPOSE: To surely clean the inside of the tube of a shock tunnel and to well maintain the operability and reproducibility of the shock tunnel by a method in which after a small-sized traveling device being made to travel in a tube to transfer a drive transmission part from one end to the other end of the tube, a cylindrical object is extracted through the drive transmission part. CONSTITUTION: After the arrival of a small-sized traveling device 8 at the end of a tube on the opposite side, a drive transmission part 4 is removed from the traveling device 8, and an extraction driving device 10 of a cleaning tool 1 is fixed on the end surface of the tube. The driving device 10 is constituted by installing a winding drum 6 for taking up the transmission part 4, a motor 5 for rotating the drum 6, and a belt 22 which transmits the drive of the motor 5 to the drum 6 on a base 7. The transmission part 4 which was connected to the traveling device 8 is attached to the drum 6, the motor 5 is operated, and the transmission part is taken up. Then, the cleaning tool 1 makes a cloth surface contact the inner surface of the duct to drive the inside of the duct to wipe off dirt on the inner surface of the tube.

10. 发明专利

JPH0443682B2 失效
公开(公告)号：JPH0443682B2
公开(公告)日：1992-07-17
申请号：JP24878086
申请日：1986-10-20
申请人： HITACHI LTD
发明人： KUBOTA MASAYOSHI , MATSUZAKI HARUMI , OOKOCHI ISAO , TAKAHASHI SANKICHI , YOSHIDA MASAHIRO , TAKAKUSAKI TSUNEHIKO , SATO JOSHIRO
IPC分类号： G01N30/02 , B01D11/00 , C07B63/00 , C07C51/00 , C07C51/48 , C07C53/126 , C07C57/03 , C07C57/07 , C07C67/00

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