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11. 发明专利

JPH109096A IDLING ROTATIONAL SPEED CONTROL VALVE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH109096A
公开(公告)日：1998-01-13
申请号：JP15789996
申请日：1996-06-19
申请人： HITACHI LTD
发明人： WATANABE KENJI , MAEDA NAOHIRO , HOKARI TOMIO
IPC分类号： F02M69/32 , F16K31/126
摘要： PROBLEM TO BE SOLVED: To block pressure wave acted on a servo system, and prevent resonance of a servo machine by arranging a pressure bulk head which is changeably in a thrust direction between a valve and a diaphragm in a device formed in such a constitution that a valve element interposed in an air passage for bypassing a throttle valve is opened/closed by the diaphragm. SOLUTION: An umbrella valve opened/closed through a shaft by a diaphragm 10 is arranged on a position opposing to a valve seat in a bypass formed to bypass a throttle valve in a main passage. At this time, in the diaphragm 10, its outer peripheral rim is fastened by laminating with a body together with the outer peripheral rim of a cup shaped metal plate 6 in which an orifices 6a are formed. The outer peripheral wall thickness rim of a boots 7 is held and fixed on the inner bottom part of the metal plate 6 by a ring 29, and movement of the metal plate 6 is allowed. In the case where a filter 45 is clogged, the atmosphere is led from an air gap 6b between the metal plate 6 and the body 1, and smooth operation of the diaphragm 10 is secured.

12. 发明专利

JPH08149786A MAGNETIC FRICTION MOTOR 失效
公开(公告)号：JPH08149786A
公开(公告)日：1996-06-07
申请号：JP29090394
申请日：1994-11-25
申请人： HITACHI LTD
发明人： IBAMOTO MASAHIKO , HOKARI TOMIO
IPC分类号： H02K23/60 , H02K41/06
摘要： PURPOSE: To exhibit a large holding force with a small current by feeding a current to a plurality of coils while switching sequentially and exciting the end face of pole sequentially in the circumferential direction thereby shifting the relative position of a point at which a force bearing member is attracted to the pole. CONSTITUTION: When a current is fed between brushes R and CO, poles A and B are excited and the pole B is attracted to an iron plate 3 whereas the pole A does not slip but rolls to the right due to magnetic friction force because the pole A touches the iron plate 3. When the commutator is switched to excite the poles B and C, the pole C is attracted to the iron plate 3 whereas the pole B rolls to the right while touching the iron plate due to the magnetic friction force. When a current is fed between brushes L and CO, the poles A and Z are excited and the pole Z is attracted to the iron plate 3 whereas the pole A rolls to the left while the iron plate due to the magnetic friction force. When a current is fed between the brushes R and L, the poles B and Z are excited and they do not roll but are blocked. When the current supply is interrupted, the poles B and Z are unlocked and freed.

13. 发明专利

JPH03160147A EGR THROTTLE CHAMBER DEVICE 失效
公开(公告)号：JPH03160147A
公开(公告)日：1991-07-10
申请号：JP29676389
申请日：1989-11-15
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： AKATSU TADASHI , HOKARI TOMIO
IPC分类号： F02M25/07 , F02D9/02 , F02D9/10 , F02D23/00
摘要： PURPOSE:To contrive compactness of a structure and reduction of the cost by providing a throttle shaft and a throttle valve, integrally with a compressor case, in its inlet part of a turbocharger, in the case of an internal combustion engine with the turbocharger. CONSTITUTION:A turbine case 4 of a turbocharger 50 is mounted to an exhaust passage 2 of an engine 1, and an exhaust passage 5 is connected to an outlet side of the turbine case 4. While a compressor case 7, provided on a coaxial line with the turbine case 4, is mounted to an intake passage 15, and an outlet side of this case 7 is connected to the engine 1 via a supercharge passage 8. Here the inlet part 7A of the compressor case 7 serves concurrently as the throttle chamber body of an EGR throttle chamber device 51 with a throttle valve 9 and its throttle shaft 10 provided in this inlet part 7A. The throttle shaft 10 is open-close driven by a diaphragm device 11 through a rod 13 and a link 14.

14. 发明专利

JPH0326867A FUEL INJECTION VALVE 失效
公开(公告)号：JPH0326867A
公开(公告)日：1991-02-05
申请号：JP15964789
申请日：1989-06-23
申请人： HITACHI LTD
发明人： NISHIGUCHI TAKASHI , KUMAGAI MITSURU , HOKARI TOMIO
IPC分类号： F02M51/08
摘要： PURPOSE:To prevent the generation of error in fuel metering and prevent fuel leak and reduce the production cost by forming a plunger and a valve into spherical form and fixing them integrally by a joint. CONSTITUTION:A plunger 5A and a valve 7 are formed into spherical form, and fixed integrally by a joint 16. With this constitution, even if the center of the inner wall surface of a yoke 3 for slide-supporting the plunger 5A and the core of the inner wall surface of a nozzle 6 for slide-supporting the valve 7 deflect, automatic center adjustment in movable manners in the vertical direction along the inner wall surfaces is permitted, since the plunger 5A and the valve 7 connected by the joint 16 are formed into spherical form, and the vertical operation is not obstructed. Therefore, the error in metering fuel due to the operation disorder of the plunger 5A and the valve 7 and the generation of troubles such as fuel leak due to the sealing disorder are prevented. Further, the cost in working parts such as the yoke 3 and the nozzle 7 and the assembly cost of the body can be reduced.

15. 发明专利

JPS63215830A TURBOCHARGER OF BALL BEARING TYPE 失效
公开(公告)号：JPS63215830A
公开(公告)日：1988-09-08
申请号：JP4759087
申请日：1987-03-04
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： TAKEDA YOSHIHIRO , HOKARI TOMIO
IPC分类号： F02B39/00
摘要： PURPOSE:To obtain a vibration damping effect in two steps and protect ball bearings from an external vibration and the like by providing spaces between a bearing and a damper, and the damper and a center housing, and forming an oil film in said spaces. CONSTITUTION:Ball bearings (f) are supported with each of sleeves (g) and (h), a spring (i) and a damper (j) on the sides of a compressor and a turbine. Also, the damper (j) is supported on a center housing (k). In this case, the ball bearings (f) and the damper (j) are semi-floating supported. Namely, the predetermined spaces (x) and (y) are formed respectively between the external surface of the ball bearings (f) and the damper (j), and between the external surface of the damper (j) and the internal surface of the center housing (k). And oil is fed in the spaces (x) and (y), thereby forming the oil films of the predetermined thickness (x) and (y). According to the aforesaid constitution, vibration damping function is obtained, thereby protecting the ball bearings (f).

16. 发明专利

JP2007113485A Method and device for controlling internal combustion engine 审中-公开
标题翻译：用于控制内燃机的方法和装置
公开(公告)号：JP2007113485A
公开(公告)日：2007-05-10
申请号：JP2005305770
申请日：2005-10-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , HOKARI TOMIO , NAKAMURA MAKOTO
IPC分类号： F02D13/02 , F02D23/00 , F02D41/02 , F02D43/00
CPC分类号： F02D35/023 , F02D19/0649 , F02D35/028 , F02D41/0002 , F02D41/0025 , F02D41/3035 , F02D2041/001 , F02D2041/1433 , F02D2200/0611 , F02P19/021 , Y02T10/18 , Y02T10/36 , Y02T10/42
摘要： PROBLEM TO BE SOLVED: To provide a method and device for controlling an internal combustion engine always optimally control combustion by detecting change of combustion, regulating effective compression ratio by a variable intake exhaust valve system, compensating slippage of ignition delay from an optimal value due to temperature and pressure of air fuel mixture and change of a state of air fuel mixture, and minimizing deviation of combustion characteristic value from target value. SOLUTION: Operation quantity is corrected by an engine model 502 based on detected combustion characteristic value when operation quantity (EVO, EVC, IVO, IVC and lift characteristics of each valve) of VVC 501 and operation quantity (fuel injection quantity, fuel injection timing) of a fuel injection system 502 as operation quantity of an engine 502 are cooperatively controlled according to demand of a driver (determined by vehicle speed and accelerator pedal step in quantity). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于控制内燃机的方法和装置，通过检测燃烧变化，通过可变进气排气阀系统调节有效压缩比来总是最佳地控制燃烧，从而将点火延迟从最优由于空气燃料混合物的温度和压力以及空气燃料混合物的状态的变化，并且使燃烧特性值与目标值的偏差最小化。解决方案：当VVC 501的运行量（EVO，EVC，IVO，IVC和升程特性）和操作量（燃料喷射量，燃料）时，基于检测到的燃烧特性值，通过发动机型号502校正操作量作为发动机502的操作量的燃料喷射系统502的喷射正时）根据驾驶员的需要（由车辆速度和加速踏板踏步数确定）协同控制。版权所有（C）2007，JPO＆INPIT

17. 发明专利

JP2007092724A Multistage fuel injection type internal combustion engine 有权
标题翻译：多级燃油喷射式内燃机
公开(公告)号：JP2007092724A
公开(公告)日：2007-04-12
申请号：JP2005286668
申请日：2005-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA MAKOTO , HOKARI TOMIO , HARA SEINOSUKE , SUGA SEIJI , WATANABE MASAHIKO
IPC分类号： F02D13/02 , F02D41/04 , F02D41/38 , F02D43/00
CPC分类号： F01N3/035 , F01N3/106 , F01N11/002 , F01N13/009 , F02B37/18 , F02B37/24 , F02D41/402 , F02D2041/001 , F02M45/086 , F02M63/0225 , Y02T10/44 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine, in particular a compression ignition engine, having a variable valve train system and a multistage fuel injection system, preventing operation of the variable valve train and operation of the fuel injection from interfering with each other and improving engine performance. SOLUTION: Intake valve closing timing is controlled according to an engine operation state and timing of secondary injection before primary injection is relatedly controlled accordingly. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有可变气门机构系统和多级燃料喷射系统的内燃机，特别是压燃式发动机，防止可变气门机构的运转和燃料喷射的操作干扰并提高发动机性能。
解决方案：根据发动机运转状态控制进气阀关闭正时，相应地相应地控制主喷射之前的二次喷射定时。版权所有（C）2007，JPO＆INPIT

18. 发明专利

JPH01187359A TURBOSUPERCHARGER WITH INTAKE AIR QUANTITY MEASURING DEVICE 失效
公开(公告)号：JPH01187359A
公开(公告)日：1989-07-26
申请号：JP849788
申请日：1988-01-20
申请人： HITACHI LTD
发明人： OKAZAKI TSUTOMU , HOKARI TOMIO
IPC分类号： F02M35/10 , F02B37/00
摘要： PURPOSE:To aim at miniaturization as well as to make highly accurate measurement attainable by forming a bypass passage in a peripheral part of a main passage leading to an inflow part of a compressor for a turbosupercharger, and setting up an air flow measuring sensor in this passage. CONSTITUTION:A compressor casing 10 being clamped to the other end of a center housing 24 of a turbosupercharger via a back plate 27 is extended in the axial direction, forming a main passage 20 leading to a scroll chamber 29 of this casing 10. An air intake part 17 is installed in an edge of this main passage 20, and a bypass passage 19 is formed in a range from this air intake part 17 to a peripheral part of the main passage 20. This bypass passage 19 is installed so as to be interconnected to the main passage 20 by connecting ports 21, 21' in and around a compressor impeller 7. In this connection, an inner diameter of the main passage 20 is formed to be almost equal to an edge of this impeller 7. A hot wire flowmeter 22 is set up in the bypass passage 19.

19. 发明专利

JPS63223327A SUPERCHARGER WITH INTERCOOLER 失效
公开(公告)号：JPS63223327A
公开(公告)日：1988-09-16
申请号：JP5661687
申请日：1987-03-13
申请人： HITACHI LTD
发明人： HOKARI TOMIO
IPC分类号： F02B37/00 , F02B39/16
摘要： PURPOSE:To prevent the output of an engine from abnormally becoming larger, even when the cooling effect of an intercooler has increased, by controlling the supercharging pressure level to a level lower than the normal mode when the outside air temperature is lower than a set temperature. CONSTITUTION:In a supercharger 1, a turbine 5 is turned by the exhaust gas exhausted from an engine 9, thereby a compressor 3 receiving the rotating force thereof compresses air. And, after having been cooled by an intercooler 7 provided in an intake passage 2, the compressed air is supplied to the engine 9 via a throttle valve 8. In this case, if the outside air temperature detected by a sensor 22 is lower than the set temperature set by a supercharging pressure setting unit 19, the solenoid valve 17 in an operating pressure controller 14 is closed. And the operating pressure of an actuator 13 is increased to open a bypass valve 11 provided in an exhaust bypass passage 10. Thus, the flow rate of exhaust gas passing through the turbine 5 is reduced to decrease the supercharging pressure level.

20. 发明专利

JPS63205419A EXHAUST GAS TURBINE SUPERCHARGER 失效
公开(公告)号：JPS63205419A
公开(公告)日：1988-08-24
申请号：JP3556587
申请日：1987-02-20
申请人： HITACHI LTD
发明人： HOKARI TOMIO
IPC分类号： F02B37/16 , F02B37/00
摘要： PURPOSE:To eliminate the piping system and to prevent a surging by furnishing an electromagnetic valve to enable the linking of the inlet of a compressor blade wheel and the inside of the scroll of a compressor case, at the upper side of the compressor case. CONSTITUTION:In a gasoline engine 13 with a supercharger composed by furnishing a compressor of an exhaust gas turbine supercharger 3 and a throttle valve 20 in order, an electromagnetic valve 2 is installed integrally at the scrolling end of a scroll of a compressor case 1 in the supercharger 3. This electromagnetic valve 2 is installed between passages 7 and 8 connecting a scroll passage 4 through which the air compressed at the compressor passes and the inlet 6 of a compressor blade 5. The electromagnetic valve 2 is operated when it receives a signal that the throttle valve 20 is fully closed, and a surging of the compressor is prevented thereby.

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