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1. 发明专利

JPH0472458A ELECTROMAGNETIC FUEL INJECTION VALVE 失效
公开(公告)号：JPH0472458A
公开(公告)日：1992-03-06
申请号：JP18395990
申请日：1990-07-13
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： UCHIDA YUTAKA , TERASAKI AKIRA
IPC分类号： F02M51/06 , F02M51/08 , F02M61/18
摘要： PURPOSE:To prevent the slip-off of an adapter and the like by providing a protruding part in a nozzle, and forming the adapter and other parts into superposed structure inside the nozzle. CONSTITUTION:A magnetic circuit is formed of a core 2, a yoke 3 and a plunger 4. Inside the core 2, there are provided a spring 8 for pressing a movable part, formed of the plunger 4 and a ball valve, to an orifice 14 provided with a seat face 7 fixed to a nozzle 6; a spring adjuster 9 for adjusting the load of this spring 8; and a coil 11 wound on a bobbin 10 for exciting the magnetic circuit. Further inside the nozzle 6, there are fixedly provided a stopper 12 for determining the stroke of the movable part, a swirler 13 for guiding the ball valve 5 and also providing fuel with turning force, and an adapter 15 for dividing fuel coming out of the orifice 14 into two ways. The coil 11 is then excited, the plunger 4 is sucked into the core 2 side, and a seat part formed of the ball valve 5 and the orifice 14 provided with the seat face 7 inside the nozzle 6 is opened to inject fuel.

2. 发明专利

JPH01159460A ELECTROMAGNETIC FUEL INJECTION VALVE 失效
公开(公告)号：JPH01159460A
公开(公告)日：1989-06-22
申请号：JP373788
申请日：1988-01-13
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： OKAMOTO YOSHIO , NAKAMURA YOZO , UCHIYAMA KYOICHI , WATANABE HARUO , KOSUGE TOKUO , ONISHI AKIRA , TERASAKI AKIRA , ANDO HIROYUKI , HAMASHIMA EIJI
IPC分类号： F02M61/18 , F02M51/06 , F02M51/08 , F02M61/12 , F02M61/16
摘要： PURPOSE:To convert pressurized fuel into a swirl one without incurring a loss as well as to secure a good atomizing characteristic all the time by specifying a ring clearance between a ball valve being formed at the time of lift of the ball valve, spraying the fuel swirled by a fuel swirl element, and a valve seat. CONSTITUTION:When a coil 15 is energized with current, a magnetic circuit is constituted by a core 2, a yoke 3 and a plunger 4, and this plunger 4 is attracted to the side of the core 2. With this magnetic attraction, a ball valve 6 is also solidly moved and comes off a valve seat 9, opening a fuel injection nozzle 8. If so, pressurized fuel passes through a lower passage 23, an outer circumference of the plunger 4, grooves 49, 50 of a fuel swirl element 37 and so on, and it is swirlingly supplied and thus sprayed out of a fuel injection valve 8. In an injection valve like this, when a groove area of the fuel swirl element 37 is set to A1, a ring clearance area at a stroke of a movable part 4A inclusive of the plunger 4 to A2 and a sectional area of the fuel injection nozzle 8 to AS, respectively, a ring clearance area A is set so as to satisfy a relationship of A1>A2>AS.

3. 发明专利

JPS59170464A Fuel injection valve 失效
标题翻译：燃油喷射阀
公开(公告)号：JPS59170464A
公开(公告)日：1984-09-26
申请号：JP4227083
申请日：1983-03-16
申请人： Hitachi Ltd
发明人： KANOU KOUJI , KOSUGE TOKUO , YAMADA KINSAKU , URUSHIBARA HISASHI , TOMOSAKI RIYOUZOU , TSURUOKA KAZUHIRO , TERASAKI AKIRA , KIDO TAKAYUKI , AOCHI YOSHIKAZU
IPC分类号： F02M51/08 , F02M51/06 , F02M61/04 , F02M61/18
CPC分类号： F02M51/0639 , F02M2051/08
摘要： PURPOSE:To obtain highly precise control of injection volume within a wide range of injection volume by providing a plate-shaped removable valve body in a fuel passage leading to a fuel injection outlet and a fixed spherical valve seat for decreasing the weight to save the electric power and preventing the bounding phenomenon due to inertia. CONSTITUTION:When an electromagnetic coil 1 is unexcited, the lower side cone face 22 of a plate-shaped valve body 21 is pushed to a top spherical face of a valve seat 20 by the tension of a spring 25 to intercept the upper end of a pass-hole 19, and consequently, the connection to an injection port 10 via the pass-hole 19 of a fuel passage 18 is intercepted. Meanwhile, the electromagnetic coil 1 is excited, a magnetic circuit is excited with a gap (g) between the plate shaped valve body 21 and central and circumferential magnetic pathes respectively by a stator iron core 4 and an outer wall part 6, and the plate-shaped body 21 is brought up from the contact with the valve seat 20 by the magnetic attraction against the force of the spring 25 via the gap (g) for opening a flow passage from the fuel passage 18 to the injection port 10 via the valve seat pass- hole 19. This construction permits to disuse the former semi-spherical valve body part and restrain the increase of the weight at the time of increase of a contacting face due to the increase of discharge.
摘要翻译：目的：通过在通向燃料喷射出口的燃料通道中提供一个板状的可拆卸阀体，以及一个用于减轻重量的固定球阀阀座，以便在很大范围的喷射量范围内获得高精度的喷射量控制动力，防止惯性的界限现象。构成：当电磁线圈1不灵敏时，板状阀体21的下侧锥面22被弹簧25的张力推到阀座20的顶球面上，以拦截电磁线圈1的上端通孔19，因此，经由燃料通路18的通孔19与喷射口10的连接被截断。同时，电磁线圈1被激励，磁路被定子铁芯4和外壁部分6分别由板状阀体21和中心圆周磁性孔之间的间隙（g）激励，并且板形状的主体21通过抵抗弹簧25的力的磁吸引而从与阀座20的接触中经由用于打开从燃料通道18到喷射口10的流动通道的间隙（g）而经由阀座椅通孔19.这种结构允许废弃前一个半球形阀体部分，并且由于放电增加而抑制了接触面增加时的重量增加。

4. 发明专利

JPS5812099B2 失效
公开(公告)号：JPS5812099B2
公开(公告)日：1983-03-07
申请号：JP8397078
申请日：1978-07-12
申请人： HITACHI LTD
发明人： HORII MASAO , KANAZAWA KATSUMASA , TERASAKI AKIRA , KUWABARA AKYASU
IPC分类号： B22D19/00 , B22D17/00 , B22D17/20 , B22D17/24 , B29C35/00 , B29C45/00 , B29C45/14

5. 发明专利

JPH01178763A SOLENOID-CONTROLLED FUEL INJECTION VALVE 失效
公开(公告)号：JPH01178763A
公开(公告)日：1989-07-14
申请号：JP33318387
申请日：1987-12-30
申请人： HITACHI LTD
发明人： ISHIKAWA TORU , TERASAKI AKIRA
IPC分类号： F02M51/08
摘要： PURPOSE:To improve the atomization capacity of fuel by installing a second fuel diffusion element in the inner part of a first fuel diffusion element installed at the downstream side of a valve seat. CONSTITUTION:Fuel passing through between a valve body 10 and a valve seat 12 flows into an orifice 17 at the time of valve opening of a fuel injection valve 1 and, after fuel metering and swirling force to the fuel are given by this orifice 17, it is sprayed to a ring void 18. The sprayed fuel is atomozed as repeating its collisions with an inner circumferential surface of a first diffusion element 6 and an outer circumferential surface of a second fuel diffusion element 15 while swirling in the ring void 18 and then it is sprayed at a specified spray angle from an outlet 6a of an injection nozzle 6. With the presence of these fuel diffusion elements 6, 15 like this, collision frequency of the fuel is sharply increasable so that a fuel diffusive effect by a series of collisions can be sufficiently brought out and, what is more, atomization capacity of the fuel is improvable owing to a synergetic effect of diffusion and swirling energy by these collisions.

6. 发明专利

JPS5174919A Kyodonosuguretakoshirikonnaruminiumugokinnoseizoho 失效
公开(公告)号：JPS5174919A
公开(公告)日：1976-06-29
申请号：JP14813674
申请日：1974-12-25
申请人： Hitachi Ltd
发明人： NAGAI SHOICHI , ISHIHARA YUZURU , TAMAMURA TATEO , TERASAKI AKIRA , OOCHI YASUSHI
IPC分类号： C22F1/043 , B21J5/00 , C22C21/02 , C22F1/04

7. 发明专利

JPH04365974A HYDRAULIC MACHINERY AND DRIVING THEREOF 失效
公开(公告)号：JPH04365974A
公开(公告)日：1992-12-17
申请号：JP14201291
申请日：1991-06-13
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： OSHIMA KATSUHIRO , MORIGUCHI KAZUO , NIIKURA KAZUO , HARADA TSUNEHARU , KOBAYASHI KOICHI , TERASAKI AKIRA
IPC分类号： F03B3/00 , F03B11/04
摘要： PURPOSE:To adjust a resonance point so as to avoid submarine resonance of a pump hydraulic turbine runner, and to improve reliability by providing a means for adjusting interval between a crown plate that forms channel along with a shroud plate and an upper cover, and whereby adjusting the means properly. CONSTITUTION:A channel is formed between a crown plate 1a and a shroud plate 1b in a pump hydraulic turbine 1, and a runner vane 1c is arranged on the channel. A main shaft 5 fixed to the center part of the upper surface of the crown plate 1a is fixed to a casing 9 through a bearing 6 so that the shaft is rotated freely. An upper cover 2 is arranged above the crown plate 1a, and a back pressure chamber 7 is formed between the plate and the cover. A lower cover 3 is arranged below the shroud plate 1b, and a side pressure chamber 8 is formed between the plate and the cover. In this structure, an interval adjustment plate 11 serving as an interval adjustment means and an adjustment liner 12 are inserted into the back pressure chamber 7. The interval adjustment means 11, 12 are adjusted, and submarine resonance of the runner 1 is thus avoided.

8. 发明专利

JPS54162217A SWASHHPLATE TYPE COMPRESSOR 失效
公开(公告)号：JPS54162217A
公开(公告)日：1979-12-22
申请号：JP7084178
申请日：1978-06-14
申请人： HITACHI LTD
发明人： TATSUMI SHIGEO , USUI HIDEO , SUGINUMA ATSUSHI , TERASAKI AKIRA , DAIBE MOTOAKI , SHINOZUKA MASAO
IPC分类号： B22D17/00 , F04B27/08 , F04B27/10 , F04B39/12
摘要： PURPOSE:To prevent the air-tightness leakage of a swash-plate type compressor by providing band-shaped projections on the inner surface of a shell. CONSTITUTION:A plurality of band-shaped projections 18, of width W, are provided on the inner surface of shell 1 along the axis of the cylinder at fixed intervals. They are integrated with the shell when it is aluminum diecast. The top surface 19 of each projection 18 is cut, and thus the cylinder is provided with a plurality of top surfaces 19. Its inner surface D1 is set so as to facilitate the engagement with cylinder block 2. After finishing, some steps remain between projection top surfaces 19 and the inner surface of shell 1. Except for projection top surfaces 19, the inner surface of shell 1 is left unprocessed. Consequently, the problem of air-tightness leakage of a swash-type compressor is markedly improved, and also it is possible to save aluminum material needed for diecasting.

9. 发明专利

JPS6354900B2 失效
公开(公告)号：JPS6354900B2
公开(公告)日：1988-10-31
申请号：JP4227083
申请日：1983-03-16
申请人： HITACHI LTD
发明人： KANO KOJI , KOSUGE TOKUO , YAMADA KINSAKU , URUSHIBARA HISASHI , TOMOSAKI RYOZO , TSURUOKA KAZUHIRO , TERASAKI AKIRA , KIDO TAKAYUKI , AOCHI YOSHIKAZU
IPC分类号： F02M51/08 , F02M51/06 , F02M61/04 , F02M61/18

10. 发明专利

JPS519012A YOTOHENO TENKAZAITENKAHOHO 失效
公开(公告)号：JPS519012A
公开(公告)日：1976-01-24
申请号：JP8013874
申请日：1974-07-15
申请人： HITACHI LTD
发明人： NAGAI SHOICHI , ISHIHARA YUZURU , TAMAMURA TATEO , TERASAKI AKIRA , OOCHI YASUSHI
IPC分类号： C21C7/072 , C22C1/00 , C22C1/02

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