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1. 发明专利

JPH0324570B2 失效
公开(公告)号：JPH0324570B2
公开(公告)日：1991-04-03
申请号：JP14389182
申请日：1982-08-18
申请人： HITACHI LTD
发明人： HOKARI TOMIO
IPC分类号： F02B37/16 , F02B37/00 , F02B37/12 , F02B37/18 , F02B37/22

2. 发明专利

JPS6044497B2 JPS6044497B2 - 失效
公开(公告)号：JPS6044497B2
公开(公告)日：1985-10-03
申请号：JP14579680
申请日：1980-10-20
申请人： Hitachi Ltd
发明人： YAMADA KOICHIRO , HOKARI TOMIO , AKATSU TADASHI
IPC分类号： F02B39/00 , F02C7/28
CPC分类号： F16C2360/24
摘要： PURPOSE:A turbo-charger's compressor shaft seal device which is simply designed and frees of oil leakage at high speed running. CONSTITUTION:A seal plate 16 is firmly fit on the surface of a thrust bearing 8 opposed to a back plate 7 and a folded part 23 or an extension of the plate 16 is formed and fit on the external peripheral face of the thrust bearing 8. The end of the folded part 23 is tightly inserted in an entire guide groove 24 made in the face of a center housing 2 except a notched part 15. The lower end of the seal plate 16 extends into a drain port 13 in such a manner that a partition plate 21 projecting from the notched area 15 of the thrust bearing 8 covers the notched area 15.

3. 发明专利

JPS60104719A INRETIA SUPERCHARGE CONTROL DEVICE 失效
公开(公告)号：JPS60104719A
公开(公告)日：1985-06-10
申请号：JP21385183
申请日：1983-11-14
申请人： HITACHI LTD
发明人： HOKARI TOMIO , YAMADA KOUICHIROU
IPC分类号： F02B27/02 , F02B33/44 , F02B37/00
摘要： PURPOSE:To improve combustion efficiency of an engine over a full operation region by providing a valve for communicating among a plurality of resonant vessels, and opening the same valve in a high speed operation region to communicate among the respective resonant vessels and thereby moderate inertia supercharge and closing the same valve in middle and low speed operation regions to stop the aforesaid moderation of the supercharge. CONSTITUTION:Exhaust gas from an engine 1 rotates a turbine runner 3 and a compressor runner 4 of a supercharger 2 to compress intake air 5, and the compressed air is sent into the engine 1 through a pressure balancing vessel 6, resonant tubes 7, 8, and resonant vessels 9, 10. A valve 11 is provided between respective resonant vessels 9, 10, which is capable of communicating them with each other. The valve 11 is opened and closed by energyzing a coil 14 by a driving circuit 13 based on a control signal from a microcomputer 12. A number-of- engine revolution signal N and acceleration degree-of-opening signal S detected by respective sensors 15, 16 are respectively inputted into the microcomputer 12 via a pulse shaper 17 and an AD converter 18. The valve 11 is opened only when the engine 1 is in a high speed operation region.

4. 发明专利

JP2006307656A Variable valve system of compression ignition engine 审中-公开
标题翻译：压力点火发动机可变阀系统
公开(公告)号：JP2006307656A
公开(公告)日：2006-11-09
申请号：JP2005127788
申请日：2005-04-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA MAKOTO , HARA SEINOSUKE , SUGA SEIJI , WATANABE MASAHIKO , HOKARI TOMIO
IPC分类号： F02D13/02 , F01L1/34 , F01L13/00 , F02D41/06 , F02D41/22 , F02D45/00 , F02N11/08
CPC分类号： F01L1/3442 , F01L13/0026 , F01L2001/0537 , F01L2001/34483 , F01L2013/0073 , F01L2800/00 , F01L2820/032
摘要： PROBLEM TO BE SOLVED: To improve startability, by always enhancing the effective compression ratio, in a variable valve system having a means for separating the closing timing of an intake valve from the bottom dead center.
SOLUTION: This variable valve system has an ignition timing advance hydraulic chamber 30 on one side of a vane body 22 connected to an intake camshaft and an ignition timing delay hydraulic chamber 32 on the other side, and is provided with a control means for controlling hydraulic pressure of an ignition timing advance hydraulic passage 32 and an ignition timing delay hydraulic passage 33 communicating with the respective hydraulic chambers 30 and 31. Thus, an energizing spring 25 for rotating the vane body 22 (changing a phase) and rotating the vane body 22 in the arrow direction, is arranged in a hydraulic housing 23 connected to a crankshaft timing pulley 132 via a timing chain 131. The closing timing of an intake valve is approached to the bottom dead center by being put in the most ignition timing advance state to rotation (a crank angle) of the crankshaft timing pulley 131 in failure or starting of the control means by the action of the energizing spring 25. The variable valve system of a compression ignition engine capable of keeping the effective compression ratio at the highest level possessed by the engine and capable of remarkably enhancing reliability of starting, can be provided.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过总是提高有效的压缩比，在具有将进气门的关闭正时与下死点分离的装置的可变阀系统中提高启动性。解决方案：该可变阀系统在与进气凸轮轴和另一侧的点火正时延迟液压室32连接的叶片体22的一侧上具有点火正时提前液压室30，并且设有控制装置用于控制点火正时提前液压通道32的液压和与各液压室30和31连通的点火正时延迟液压通道33.因此，用于旋转叶片体22（改变相位）并旋转叶片主体22沿箭头方向布置在经由正时链条131连接到曲轴正时皮带轮132的液压壳体23中。进气门的关闭正时通过置于最点火时间接近下死点通过激励弹簧25的作用使曲轴正时皮带轮131的前进状态转动（曲轴转角），失效或启动控制装置。可变阀值可以提供能够将有效压缩比保持在发动机所具有的最高水平并且能够显着增强启动可靠性的压燃式发动机的e系统。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JPH09291869A FLUID CONTROL VALVE 失效
公开(公告)号：JPH09291869A
公开(公告)日：1997-11-11
申请号：JP10916296
申请日：1996-04-30
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SAEKI HIROAKI , EJIRI HIROSHIRO , HOKARI TOMIO
IPC分类号： F02M69/32 , F02D35/00 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To provide a fluid control valve able to control the flow rate in two directions and having high reliability. SOLUTION: A fluid control valve 100 measures the flow rate of fluid by a valve 124 constituted of an inflow passage 114 and a plurality of outflow passages 116, 118 and arranged on the way of a fluid passage. The flow rate of fluid is controlled by forward and backward moving a shaft 130 fixed to the valve 124 in the axial direction. The opening parts of the outflow passages 116, 118 are opened in the direction perpendicular to the forward and backward moving direction of the shaft 130, a flat surface part 124c of the valve 124 is brought in direct-contact with the opening part of the outflow passage 122 and opens and closes the opening part, a cylindrical part 124b is slidably fitted inside the opening part, fitting of the opening part to the cylindrical part 124b is released by the forward and backward movement of the shaft 130, and the opening part is opened and closed.

6. 发明专利

JPS63134815A DOUBLE SCROLL-SHAPED TURBO CHARGER 失效
公开(公告)号：JPS63134815A
公开(公告)日：1988-06-07
申请号：JP27957586
申请日：1986-11-26
申请人： HITACHI LTD
发明人： USAMI SABURO , HOKARI TOMIO
IPC分类号： F02B39/00 , F01D25/24
摘要： PURPOSE:To reduce bending stress generated at a partition wall by forming a recession part along the outer circumference corresponding to the partition on the outer surface of a scroll wrapping starting part of a turbine casing. CONSTITUTION:On the outer circumference of a ringed partition wall 4, that is, on the outer surface of a casing 1 formed so that the root part of the partition wall is fixed to the inside of the casing, a recession part 5 is formed along the outer circumference corresponding to the partition wall 4 from the start of scroll wrapping to the range of 180 deg.C. As the recession part 5 is formed, a thin connecting part 9 is formed by the casing 1 on the first flow passage 2 side and the partition wall 4, and a thin connecting part 10 is formed by the casing 1 on the second flow passage 3 side and the partition wall 4.

7. 发明专利

JPS6388318A EXHAUST TURBOSUPERCHAEGER 失效
公开(公告)号：JPS6388318A
公开(公告)日：1988-04-19
申请号：JP23116386
申请日：1986-10-01
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： TAKEDA YOSHIHIRO , HOKARI TOMIO , KOIKE TOSHIFUMI
IPC分类号： F16C33/10 , F02B39/14 , F16C33/00
摘要： PURPOSE:To feed lubricating oil sufficiently all over a bearing, by forming through holes which reach inner/outer cylinders, in the bearing of an exhaust turbosupercharger, and forming an oil groove which extends on the inner circumference of a center housing, which confronts said through holes, for feeding lubricating oil from a groovy hole formed in the center housing, through said oil groove and through holes. CONSTITUTION:Lubricating oil which flows from an intake 7 for lubricating oil, is fed to an oil groove 12 through a groovy hole 14 formed in a center housing 1. After that, on the one hand, lubricating oil is fed between the inner circumferential surface of the center housing 1 and the outer circumferential surfaces of bearings 5, 6 and on the other hand, lubricating oil is fed between the inner circumferential surface of the bearings 5, 6 and the outer circumferential surface of a shaft 2, through a ring-shaped-groove 11 of the bearing 5 and through holes 10. In this way, even oil films can be formed all over the sliding faces of the bearings 5, 6. Consequently, stable floating rotation of the shaft 2 can be performed.

8. 发明专利

JPS5882019A METHOD AND APPARATUS FOR DETECTING SURGE POINT OF TURBOCHARGER 失效
公开(公告)号：JPS5882019A
公开(公告)日：1983-05-17
申请号：JP17971381
申请日：1981-11-11
申请人： HITACHI LTD
发明人： TSUJII FUMIO , ANDOU HIROYUKI , HOKARI TOMIO , TSUBOUCHI HARUYOSHI , MATSUOKA YOUJI
IPC分类号： F02B39/16 , F02B37/12
摘要： PURPOSE:To detect the surge point of the turbocharger automatically, and to measure every kind of data for analyzing the performance of the turbocharger at that time automatically. CONSTITUTION:When the number of revolution of the turbocharger 1 is made constant and the operation of a revolution control pulse motor 18 is stopped, a compressor flow-rate pulse motor 36 is operated in the close direction at the same time, and the flow rate of a compressor is reduced. The surge point where the output of a pressure sensor 34 detecting the pressure of the inlet of the compressor changes largely is detected, and the flow rate of the compressor is increased. The motor 18 is controlled, the revolution of the turbocharger 1 is controlled, the motor 18 is stopped, the motor 36 is closed, and every kind of temperature data, pressure data, etc. are measured by means of a micro-computer 42 after a fixed time passes after each set value of the number of revolution of the turbocharger 1, the flow rate of the compressor, the temperature of the inflow air of a turbine inlet 7, etc. is brought within allowable value.

9. 发明专利

JP2006342677A COMPRESSION IGNITION ENGINE 审中-公开
公开(公告)号：JP2006342677A
公开(公告)日：2006-12-21
申请号：JP2005166538
申请日：2005-06-07
申请人： HITACHI LTD
发明人： HARA SEINOSUKE , HOKARI TOMIO , SUGA SEIJI , NAKAMURA MAKOTO , WATANABE MASAHIKO
IPC分类号： F02D15/00 , F02D13/02 , F02D29/02 , F02D41/06 , F02D43/00
摘要： PROBLEM TO BE SOLVED: To improve startability by increasing cranking rotation speed in a compression ignition engine equipped with a variable valve system having a function for bringing close to the bottom dead center the closing timing of an intake valve at the time of low-temperature start. SOLUTION: At the time of cranking when an engine starts at low temperature, an effective compression ratio of an engine is reduced by controlling a variable valve system to a retard angle state or substantially advanced angle state or bringing a discharge valve into an open state. When cranking rotation speed is increased, the system is controlled to an advance angle state. At the same time, fuel is injected to increase the engine rotation speed. When combustion is stabilized, the system is controlled to the retard angle state. COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2006307658A 2-stroke engine 审中-公开
标题翻译： 2冲程发动机
公开(公告)号：JP2006307658A
公开(公告)日：2006-11-09
申请号：JP2005127794
申请日：2005-04-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , HOKARI TOMIO , SUGA SEIJI , NAKAMURA MAKOTO , WATANABE MASAHIKO
IPC分类号： F02D43/00 , F01L1/34 , F01L9/02 , F01L9/04 , F01L13/00 , F02D13/02 , F02D41/02 , F02D41/04 , F02D41/18 , F02D45/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To improve combustion, emission and motive power performance over a wide operation range, in a 2-stroke engine having a means for electrically controlling the opening-closing timing and a maximum lift of an intake valve and an exhaust valve.
SOLUTION: This 2-stroke engine has actuators 7 and 8 capable of electrically controlling one or both of a lift and the opening-closing timing of one or both of the intake valve 4 and the exhaust valve 5 of one time in one rotation of the engine. A signal of an air flow rate sensor 9 and a rotation sensor 11 is inputted to a control unit 13. A fuel quantity of a fuel injection injector 6 is cooperatively controlled with operation of the intake valve 4 and the exhaust valve 5 by confirming the operation of the intake valve 4 and the exhaust valve 5 from an air flow rate and a rotating speed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了在宽的操作范围内改善燃烧，排放和动力性能，在具有用于电控制打开 - 关闭正时和进气阀的最大升程的二冲程发动机中，以及排气阀。解决方案：该二冲程发动机具有致动器7和8，其能够一次性地一次性地控制进气门4和排气门5中的一个或两个的升程和打开正时的一个或两个发动机旋转。空气流量传感器9和旋转传感器11的信号被输入到控制单元13.燃料喷射喷射器6的燃料量通过进气阀4和排气阀5的操作来协调地控制，的进气阀4和排气阀5的空气流量和转速。版权所有（C）2007，JPO＆INPIT

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