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41. 发明专利

JP2001234798A AIR-FUEL RATIO CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE AND METHOD FOR ESTIMATING INTAKE AIR QUANTITY OF EACH OF CYLINDERS 失效
公开(公告)号：JP2001234798A
公开(公告)日：2001-08-31
申请号：JP2000050536
申请日：2000-02-22
申请人： HITACHI LTD
发明人： AONO TOSHIHIRO , KOWATARI TAKEHIKO
IPC分类号： F02D45/00 , F02D41/04 , F02D41/14 , F02D41/18 , F02D41/34 , F02D41/36
摘要： PROBLEM TO BE SOLVED: To precisely find intake air quantity of each of cylinders even when a driving state of an internal combustion engine is variously changed without forming a map of intake air efficiency for each of the cylinders for each of engines. SOLUTION: An air-fuel ratio is controlled by measuring density of gas in a manifold, measuring quantity of air passing through a throttle, measuring an angle of a crank of the internal combustion engine, discriminating a cylinder in an air intake stroke in accordance with the crank angle, calling a computing means to correspond to the cylinder in the air intake stroke, assuming air intake efficiency by the computing means, computing the air quantity flowing into the cylinder in accordance with the air intake efficiency and the above sensor data and calculating fuel injection quantity to the cylinder in accordance with the air quantity.

42. 发明专利

JP2000265898A INTAKE AIR FLOW MEASURING DEVICE 失效
公开(公告)号：JP2000265898A
公开(公告)日：2000-09-26
申请号：JP6784399
申请日：1999-03-15
申请人： HITACHI LTD
发明人： AONO TOSHIHIRO , KOWATARI TAKEHIKO
IPC分类号： G01F1/68 , F02D41/18 , F02D45/00 , G01F1/69 , G01F1/696
摘要： PROBLEM TO BE SOLVED: To correctly measure the flow rate by providing a correction means to correct the delay and non-linearity of a heat wire air flow meter and a backflow ratio calculating means, and obtaining the mean flow rate from the output and the backflow ratio of the heat wire air flow meter which is corrected in delay and non-linearity. SOLUTION: The output signal of a heat wire air flow meter 1 is inputted in a delay and non-linearity correcting means 7 and a waveform characteristic quantity extracting means 6 in a CPU to correct the delay and non-linearity of the heat wire air flow meter 1. Waveform characteristic quantity is obtained from the detected signal of a crank angle sensor 5 by the waveform characteristic quantity extracting means 6. After backflow ratio is obtained from backflow ratio calculation information 10 and the waveform characteristic quantity by a backflow ratio calculating means 8, the mean flow rate is operated from the output of the heat wire air flow meter 1 in which the delay and non-linearity from the delay and non-linearity correcting means 7 are corrected and the backflow ratio obtained by the backflow ratio calculating means 8 by a flow rate calculating means 9, and the air flow rate is obtained correctly.

43. 发明专利

JPH09220975A BACKWARD SAFETY SUPPORTING DEVICE FOR MOVING BODY 失效
公开(公告)号：JPH09220975A
公开(公告)日：1997-08-26
申请号：JP3165796
申请日：1996-02-20
申请人： HITACHI LTD
发明人： YAMAMOTO HIROSHI , KOWATARI TAKEHIKO
IPC分类号： B60R1/04
摘要： PROBLEM TO BE SOLVED: To always monitor a backward situation, by photographing a rear view mirror and processing the photographed image and displaying a warning to a driver by a warning display means, if necessary, and controlling the warning display means by the driver's response to a moving mechanism controlling means. SOLUTION: A photographed image of a rear view mirror 1 is processed by an image preprocessing means 22 and an image processing means 23 according to the relative speeds and the information is transmitted to a controlling means 23. Next, a driver's direction operation and speed operation to a moving mechanism controlling means 26 are detected by a response detecting means 25 and the controlling means 23 judges if a warning needs to be displayed or not and the level of the warning. If necessary, a control signal is output to a warning display means. The warning display means 24 calls the driver's attention to back side by the direction from the controlling means 23. The warning display means 24 gives vibration to a brake an accelerator, a steering wheel, a clutch and a seat.

44. 发明专利

JPH09151809A EXHAUST GAS RECIRCULATING DEVICE AND METHOD FOR ENGINE 失效
公开(公告)号：JPH09151809A
公开(公告)日：1997-06-10
申请号：JP31509495
申请日：1995-12-04
申请人： HITACHI LTD
发明人： AMO KIYOSHI , OKAMOTO YOSHIO , KOWATARI TAKEHIKO
IPC分类号： F02M25/07
摘要： PROBLEM TO BE SOLVED: To mix intake air with E.G.R. gas in its early stages and uniformly distribute them in order to reduce NOx gas generated at the time of combustion of an engine. SOLUTION: In an exhaust gas recirculating(E.G.R.) device, an E.G.R. passage 8, through which a part of exhaust gas 7 is recirculated into an intake air manifold 5, and an E.G.R. valve 10 are prepared. In addition, an E.G.R. gas returning port 12 is arranged, which is communicated with the E.G.R. passage 8 through which the exhaust gas 7 is gushed into the intake air minifold 5, at the downstream of the E.G.R. valve 10. Further, a variable E.G.R.-gas-passage throttle valve 11 is prepared, in which the area of the passage can be varied, between the E.G.R. valve 10 and the E.G.R. gas returning port 12.

45. 发明专利

JPH0862012A METHOD AND APPARATUS FOR MEASURING AIR FLOW 失效
公开(公告)号：JPH0862012A
公开(公告)日：1996-03-08
申请号：JP14585195
申请日：1995-06-13
申请人： HITACHI LTD
发明人： KOWATARI TAKEHIKO , ARAI NOBUKATSU , KOBAYASHI CHIHIRO
IPC分类号： G01F1/68 , F02D41/18 , F02D45/00 , G01F1/00 , G01F1/696 , G01F1/698
摘要： PURPOSE: To obtain an air flow measuring apparatus for determining a flow rate corresponding to the actual flow rate by performing reverse conversion for compensating the response of an output from a thermal air flowmeter. CONSTITUTION: Output signals from a thermal air flowmeter are sampled at a period T and analog signals are digitized through A/D conversion 101. A time constant τ of reverse conversion 105 for compensating the response is then determined. The time constant τ is calculated from a flow rate signal having a lag behind the pulsation flow of an engine but a sufficiently high accuracy is provided for determination of average flow rate. In this regard, the reverse conversion 105 for compensating the response is performed, according to the formula, using the time constant τ, the period T for A/D conversion, the first time A/D converted value V1 and a current A/D converted value V0 . Since the VINV sustains nonlinear output characteristics, linearization is performed through a linearizer 106 before the flow rate is determined.

46. 发明专利

JPH07218022A CONTROLLER FOR ABSORPTION CHILLED AND WARM WATER MACHINE 失效
公开(公告)号：JPH07218022A
公开(公告)日：1995-08-18
申请号：JP815294
申请日：1994-01-28
申请人： HITACHI LTD
发明人： KOWATARI TAKEHIKO , YAMAKADO MAKOTO , FUJII TATSURO
IPC分类号： F25B15/00
摘要： PURPOSE:To provide a controller for judging whether only stop of heating means may be sufficient or not or further whether forcible dilution of the refrigerant is needed or not from pressure and pressure change rate of an evaporator or an absorber and a pressure and pressure change rate detecting sensor to avoid freezing of refrigerant in an absorption chilled and warm water machine. CONSTITUTION:A controller 122 for an absorption chilled and warm water machine judges whether only a burner 18 may be stopped or further forcible dilution of refrigerant is executed by opening valves 119, 120 by detecting pressure and pressure changer rate by pressure and pressure changer rate detecting sensor 110 when a pressure of an absorber 11 or an evaporator 15 is lowered due to a reduction in a cooling load.

47. 发明专利

JP2010038126A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2010038126A
公开(公告)日：2010-02-18
申请号：JP2008204970
申请日：2008-08-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YONEDA YUKIKO , ABE MOTOYUKI , KOWATARI TAKEHIKO , IRINO YUSUKE , TAKAOKU JUNJI , ISHIKAWA TORU
IPC分类号： F02M61/18 , F02M51/00
摘要： PROBLEM TO BE SOLVED: To provide a multi-hole fuel injection valve to be used for a cylinder injection type gasoline engine, compatibly having an increased fuel flow rate and improved atomizing performance.
SOLUTION: An annular depression 204 is applied into a valve element 105 to enlarge the cross section area of a flow path right under a seat portion 203a, and the inlet of an nozzle hole 201 is formed to be covered at least in part with the annular depression 204. The flow path is shaped so that a clearance between the surface of the valve element 105 and a valve seat surface 202 is gradually narrower as tending from a deepest portion 304 of the annular depression toward the downstream side.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于气缸喷射型汽油发动机的多孔燃料喷射阀，其具有增加的燃料流量和改善的雾化性能。解决方案：将环形凹部204施加到阀元件105中以扩大座部203a下方的流动通道的横截面面积，并且喷嘴孔201的入口形成为至少部分地覆盖环形凹部204.流动通道的形状使得阀元件105的表面与阀座表面202之间的间隙从环形凹部的最深部分304向下游侧逐渐变窄。版权所有（C）2010，JPO＆INPIT

48. 发明专利

JP2009174481A Fuel injection valve and internal combustion engine 有权
标题翻译：燃油喷射阀和内燃机
公开(公告)号：JP2009174481A
公开(公告)日：2009-08-06
申请号：JP2008015753
申请日：2008-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ABE MOTOYUKI , YONEDA YUKIKO , ISHIKAWA TORU , KOWATARI TAKEHIKO , MAEKAWA NORIYUKI
IPC分类号： F02M47/00 , F02M47/02 , F02M51/06 , F02M61/10
CPC分类号： F02M69/046 , F02M57/026 , F02M61/10 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To provide a simply structured fuel-injection valve for increasing injection pressure through the use of fuel as hydraulic oil.
SOLUTION: A pressure intensifier is provided with a pressurization piston 106, a first fuel chamber 107 communicating with a fuel inlet path 101 of a fuel supply path, and a pressurization chamber 111 for pressurizing the fuel. The pressurization chamber 111 is structured inside a valve element 110. The pressurization piston 106 is provided so as to be displaceable relatively to the valve element 110. A first pressure-receiving face 106a facing to the inside of the first fuel chamber 107 is formed in one end in the drive-shaft direction 106d of the pressurization piston 106; in the other end of the pressurization piston part 106, a pressure-intensifying piston part 106b is provided which faces the inside of the pressurization chamber 111 in a smaller area than that of the first pressure-receiving face 106a, and varies the capacity of the pressurization chamber 111.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种简单结构化的燃料喷射阀，用于通过使用燃料作为液压油来增加喷射压力。解决方案：增压器设置有加压活塞106，与燃料供给路径的燃料入口路径101连通的第一燃料室107和用于对燃料加压的加压室111。加压室111被构造在阀元件110的内部。加压活塞106设置成相对于阀元件110可移动。面向第一燃料室107的内部的第一受压面106a形成为加压活塞106的驱动轴方向106d的一端; 在加压活塞部106的另一端设置增压活塞部106b，该增压活塞部106b的面积比第一受压面106a的面积小，加压室111.版权所有（C）2009，JPO＆INPIT

49. 发明专利

JP2008049306A Apparatus for mixing gas 审中-公开
标题翻译：混合气体装置
公开(公告)号：JP2008049306A
公开(公告)日：2008-03-06
申请号：JP2006229996
申请日：2006-08-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MATSUMOTO TAKEHIRO , SATO MASAYUKI , KOWATARI TAKEHIKO
IPC分类号： B01F5/00 , B01F3/02 , F01N3/08
摘要： PROBLEM TO BE SOLVED: To solve such a problem that the size of a system becomes larger or the output of the system is decreased since a main conduit of a long section is required or several devices are arranged in the main conduit to cause a pressure loss in a fluid when two fluids are mixed almost uniformly with each other.
SOLUTION: An auxiliary conduit is arranged through which an additional gas is made to pass and an outlet of the auxiliary conduit is arranged to be opened to the vicinity of the center of the main conduit through which a main gas is made to pass. A plate for dispersing the additional gas in the radial direction or a frustum-like structure, the cross-sectional area of which is made larger as the cross section near the auxiliary conduit is parted from the auxiliary conduit, is arranged in the vicinity of the center of the main conduit just after the outlet of the auxiliary conduit. A whirling member having a plurality of stator blades or rotor blades for forming a whirling flow in a current of the main gas is arranged for promoting the mixing of the additional gas with the main gas.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决由于需要长段的主管道或者在主管道中布置多个设备而导致系统尺寸变大或者系统的输出减小的问题，导致当两种流体彼此几乎均匀地混合时，流体中的压力损失。
解决方案：配置辅助导管，附加气体通过该辅助导管通过，并且辅助导管的出口被布置成向主导管的中心附近开放，主气体通过该导管通过。用于将附加气体分散在径向方向上的板或平截头体状结构，当辅助导管附近的横截面与辅助导管分离时，截面积更大的横截面积被设置在主导管的中心位于辅助导管出口之后。布置有用于在主气体的电流中形成旋转流的多个定子叶片或转子叶片的旋转构件，用于促进附加气体与主气体的混合。版权所有（C）2008，JPO＆INPIT

50. 发明专利

JP2007116860A Vehicle drive unit 有权
标题翻译：车辆驱动单元
公开(公告)号：JP2007116860A
公开(公告)日：2007-05-10
申请号：JP2005307953
申请日：2005-10-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMURA SHINYA , KOWATARI TAKEHIKO , YAMAMOTO TATSUYUKI , ITO MASARU
IPC分类号： B60L9/16
CPC分类号： B60W20/15 , B60K6/44 , B60K6/52 , B60K28/16 , B60T8/175 , B60W10/08 , B60W20/00 , Y02T10/623 , Y02T10/6265 , Y02T10/7258
摘要： PROBLEM TO BE SOLVED: To provide a vehicle drive unit that can recover a grip quickly even if wheels slip. SOLUTION: When the wheels are in a slip state or when the slip state is likely to occur, angular velocity W of the wheels is changed by pulsating a torque applied to the wheels so as to change the slip ratio S close to a slip ratio at which a friction coefficient becomes maximum, and thus, the average of the friction coefficient μ is enlarged and an average of a vehicle driving force F generated by the wheels is enlarged. Since the vehicle driving force is enlarged, the vehicle is accelerated and is easily gripped. Furthermore, when the vehicle is in a grip state or traveling at high speed, vibrations and noises are suppressed by eliminating the torque pulsation or making small the fluctuation width of the torque pulsation. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供即使车轮滑动也能快速恢复抓地力的车辆驱动单元。解决方案：当车轮处于滑动状态或滑移状态很可能发生时，轮的角速度W通过脉动施加在车轮上的扭矩而改变，从而将滑移率S改变为接近于摩擦系数变得最大的滑移率，因此摩擦系数μ的平均值增大，并且由车轮产生的车辆驱动力F的平均值增大。由于车辆驱动力增大，所以车辆被加速并容易地夹紧。此外，当车辆处于抓地状态或高速行驶时，通过消除扭矩脉动或扭矩脉动的波动宽度变小，可以抑制振动和噪声。版权所有（C）2007，JPO＆INPIT

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