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1. 发明专利

JP2003083788A Flow rate-measuring apparatus 有权
标题翻译：流量测量装置
公开(公告)号：JP2003083788A
公开(公告)日：2003-03-19
申请号：JP2001274402
申请日：2001-09-11
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： NAKADA KEIICHI , WATANABE IZUMI , HORIE JUNICHI , KAMIYAMA KEI , ONIKAWA HIROSHI , YAMADA MASAMICHI
IPC分类号： G01F1/00 , G01F1/684 , G01F5/00 , G01F15/12
CPC分类号： G01F1/684 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： PROBLEM TO BE SOLVED: To provide a flow rate-measuring apparatus which does not damage a flow rate measurement element, is highly reliable even after long use, and has improved pulsating characteristics even in a state where dust and moisture are present in an aspiration pipe. SOLUTION: An introduction means is provided near the outlet of a sub passage in the flow rate-measuring apparatus, where the introduction means introduces the flow in the opposite direction of the main passage into the sub passage via the outlet.
摘要翻译：要解决的问题：为了提供不损害流量测量元件的流量测量装置，即使长时间使用也是高度可靠的，并且即使在吸入管中存在灰尘和湿气的状态下也具有改善的脉动特性。解决方案：在流量测量装置中的副通道出口附近设置引入装置，其中引入装置将主流道的相反方向的流动经由出口引入副通道。

2. 发明专利

JP2004037131A Equipment for measuring gas flow rate 有权
标题翻译：用于测量气体流量的设备
公开(公告)号：JP2004037131A
公开(公告)日：2004-02-05
申请号：JP2002191580
申请日：2002-07-01
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： KATO YUKIO , ONIKAWA HIROSHI , IGARASHI SHINYA , TAKASAGO AKIRA
IPC分类号： G01F1/00 , F02D35/00 , G01F1/684 , G01F5/00 , G01F15/12
CPC分类号： G01F5/00 , G01F1/6842 , G01F15/12
摘要： PROBLEM TO BE SOLVED: To obtain equipment for measuring the gas flow rate in a suction passage for sucking gas in which abnormal output, aging, contamination and damage of a flow rate measuring element due to liquid and foreign matter existing in the sucked gas are reduced. SOLUTION: The gas flow rate measuring equipment having a flow rate detecting element located in the suction passage for sucking gas and detecting the gas flow rate comprises a subchannel for taking in the gas flowing through the suction passage, a subchannel inlet part opening toward the upstream side in the main flow direction of gas in the suction passage, and the flow rate detecting element located in the subchannel. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：获得用于吸入由于吸入的液体和异物引起的流量测量元件的异常输出，老化，污染和损坏的吸入气体的气体流量的测量装置气体减少。解决方案：具有位于用于吸入气体的吸入通道中的流量检测元件并检测气体流量的气体流量测量设备包括用于吸入流过吸入通道的气体的子通道，子通道入口部分开口朝向吸入通道中的气体的主流动方向的上游侧和位于子通道中的流量检测元件。版权所有（C）2004，JPO

3. 发明专利

JP2008281581A Apparatus for measuring gas flow rate 有权
标题翻译：测量气体流量的装置
公开(公告)号：JP2008281581A
公开(公告)日：2008-11-20
申请号：JP2008177049
申请日：2008-07-07
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： IGARASHI SHINYA , ONIKAWA HIROSHI , ASANO YASUHIRO , SAITO TADAO
IPC分类号： G01F1/684 , G01F5/00 , G01F15/12
CPC分类号： G01F1/6842 , G01F5/00 , G01F15/12
摘要： PROBLEM TO BE SOLVED: To enhance the accuracy of flow rate measurement by minimizing errors in flow rate measurement. SOLUTION: Flow detecting elements are provided at a sub-passage for making a part of a fluid to be measured (gas) flow. The wall of the sub-passage contains a leak hole (through hole) to drain a liquid having entered and accumulated inside the sub-passage. A protrusion for generating a dynamic pressure on the opening is arranged close to the opening of the leak hole on the external surface of the sub-passage. Alternatively, a protrusion located upstream from the leak hole is formed on the inner wall surface of the sub-passage. The former protrusion generates a dynamic pressure in response to the flow velocity of the gas flowing along the external surface of the sub-passage. The latter protrusion produces a separation flow area for separating the flow from the internal surface of the sub-passage (close to the leak hole), whereby the pressure of the separation floe area is reduced. This configuration provides almost the same pressure differences on the openings of the internal and external surfaces of the sub-passage, thereby reducing the amount of gas leaked from the leak hole. This reduces changes in the distribution flow velocity in the sub-passage between the cases where the leak hole is blocked and where not blocked, and minimizes flow measurement errors. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过最小化流量测量误差来提高流量测量的精度。解决方案：流量检测元件设置在用于使被测量流体（气体）流动的一部分的子通道处。子通道的壁包含泄漏孔（通孔），以排出进入并积聚在子通道内的液体。用于在开口上产生动压的突起设置在靠近子通道外表面上的泄漏孔的开口处。或者，位于上述泄漏孔上游的突起形成在上述通路的内壁面上。前一个突起响应于沿着子通道的外表面流动的气体的流速而产生动态压力。后者的突起产生用于将流体从分通道的内表面（靠近泄漏孔）分离的分离流动区域，从而降低了分离絮区的压力。这种构造在子通道的内表面和外表面的开口上提供几乎相同的压力差，从而减少从泄漏孔泄漏的气体量。这可以减少泄漏孔被阻塞的情况和未被阻塞的情况下的子通道中的分布流速的变化，并且最小化流量测量误差。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008233111A Heat generation resistor type flow measurement device 有权
标题翻译：热生成电阻型流量测量装置
公开(公告)号：JP2008233111A
公开(公告)日：2008-10-02
申请号：JP2008176107
申请日：2008-07-04
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： ONIKAWA HIROSHI , IGARASHI SHINYA , OZAWA MASAYUKI , SAITO TADAO , SAITO TAKAYUKI
IPC分类号： G01F1/684 , G01F1/69
摘要： PROBLEM TO BE SOLVED: To provide a heat generation resistor type flow measurement device improved in productivity. SOLUTION: A sub-passage sidewall 15 adjacent to an air-temperature detection element 12 is provided with a sub-passage wall hole 9 in the vicinity of the air-temperature detection element 12. A sub-passage sidewall 15 adjacent to a temperature-sensitive resistor 13 is provided with a sub-passage wall hole 10 in the vicinity of the temperature-sensitive resistor 13. In addition, a sub-passage sidewall 16 adjacent to a heat generation resistor 14 is provided with a sub-passage wall hole 11 in the vicinity of the heat generation resistor 14. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种生产率提高的发热电阻型流量测量装置。解决方案：与空气温度检测元件12相邻的子通道侧壁15在空气温度检测元件12附近设置有副通路壁孔9。温敏电阻13在温度敏感电阻13附近设有副通路壁孔10.另外，与发热电阻14相邻的副通路侧壁16设有副通路发热电阻器14附近的壁孔11。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2005128038A Air flow rate measuring device 有权
标题翻译：空气流量测量装置
公开(公告)号：JP2005128038A
公开(公告)日：2005-05-19
申请号：JP2005035366
申请日：2005-02-14
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： ONIKAWA HIROSHI , WATANABE IZUMI , IGARASHI SHINYA , NAKADA KEIICHI , KAMIYAMA KEI
IPC分类号： G01F1/00 , G01F1/684
摘要： PROBLEM TO BE SOLVED: To provide a heat element type air flow rate measuring device reducing dirt, deterioration along with the time, and breakage of a flow rate measuring element due to dust and droplets in intake air. SOLUTION: In this air flow rate measuring device, the flow passage shape of an auxiliary passage, in which the air flow rate measuring element is installed, is defined. Without using any new production method or the like, the heat element type air flow rate measuring device can be provided at a low cost. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种减少污垢，随时间劣化以及由于进气中的灰尘和液滴引起的流量测量元件破裂的热元件式空气流量测量装置。解决方案：在该空气流量测量装置中，限定安装有空气流量测量元件的辅助通道的流路形状。在不使用任何新的制造方法等的情况下，可以以低成本提供热元件式的空气流量测量装置。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004028934A Heating resistor type flow rate measurement device having insert mold case 有权
公开(公告)号：JP2004028934A
公开(公告)日：2004-01-29
申请号：JP2002189019
申请日：2002-06-28
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： OZAWA MASAYUKI , IGARASHI SHINYA , HIRAMATSU NOBUHITO , SAITO TADAO , ONIKAWA HIROSHI
IPC分类号： G01M99/00 , B29C45/00 , F02D35/00 , F02D41/18 , G01F1/684
CPC分类号： G01F1/6842 , B29C45/0025
摘要： PROBLEM TO BE SOLVED: To improve the reliability of a heating resistor type flow rate measurement device using a mold part in which a metal sheet is integrally molded. SOLUTION: A hole which allows only resin to pass is formed on the metal sheet in a position where high stress is applied or in the vicinity of the position. A part shape of a connector terminal which is unnecessary from an original purpose is arranged in the vicinity of the position where resin thickness increases and temperature difference between the inside and the outside of resin is locally enlarged. A weld line and a void are not compounded. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2008292508A Heat generation resistor type flow measuring instrument 有权
标题翻译：热发生电阻型流量测量仪器
公开(公告)号：JP2008292508A
公开(公告)日：2008-12-04
申请号：JP2008229204
申请日：2008-09-08
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： SAITO TADAO , OZAWA MASAYUKI , IGARASHI SHINYA , ONIKAWA HIROSHI , YASUKAWA AKIO , TAKASAGO AKIRA
IPC分类号： G01F1/684
摘要： PROBLEM TO BE SOLVED: To provide a reliable slot-in type heat generation resistor type flow measuring instrument which has excellent vibration resistance, and also has structure for preventing a characteristic error caused by heat effect of an internal combustion engine. SOLUTION: The flow measuring instrument comprises: a housing provided between a frame body 4 and a connector 2 and having a support part 3 as a fixing part on a mounting part of a body 15 for forming a fluid passage; flow detection elements 7, 8 held on a frame body side of the housing; and an electronic circuit 6 held on the housing and electrically connected to the flow detection elements and connector. A highly rigid member 22 with higher rigidity than material of a main constituting member of the housing is integrally molded with the support part. The housing is positioned on the fluid passage by at least one projection 23 and a recessed part for receiving the projection provided between the mounting part and the support part. The housing is thereby fixed on the mounting part of the body through the highly rigid member. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种耐振动性优异的可靠的插入式发热电阻型流量计，还具有防止内燃机的热影响引起的特性误差的结构。流量测量装置包括：壳体，设置在框架体4和连接器2之间，并且具有作为固定部分的支撑部分3，用于形成流体通道的主体15的安装部分; 保持在壳体的框体侧的流量检测元件7,8; 以及电子电路6，其保持在壳体上并电连接到流量检测元件和连接器。与壳体的主要构成构件的材料相比刚性高的高度刚性构件22与支撑部一体地模制。壳体通过至少一个突起23和用于接收设置在安装部和支撑部之间的突起的凹部而位于流体通道上。因此，壳体通过高度刚性的构件固定在主体的安装部分上。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2005055390A Thermal type flow measuring instrument 审中-公开
标题翻译：热式流量测量仪
公开(公告)号：JP2005055390A
公开(公告)日：2005-03-03
申请号：JP2003288656
申请日：2003-08-07
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： KAWASAKI TSUTOMU , KOBAYASHI CHIHIRO , ONIKAWA HIROSHI , IGARASHI SHINYA
IPC分类号： G01F15/12 , G01F1/684
摘要： PROBLEM TO BE SOLVED: To provide a thermal type flow measuring instrument capable of measuring precisely a flow rate without deteriorating a flow measuring characteristic caused by deposition of an impurity such as a salt onto a heating resister. SOLUTION: The heating resister 7 is arranged in a sub-passage 6. An intake air flow rate for an internal combustion engine is detected by a heat radiation amount of the heating resister 7. A surface tension of a liquid drop including the salt deposited on the heating resister 7 is destructed by a liquid drop elimination member 12 to be flow-separated from the heating resister 7. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够精确地测量流量而不会使诸如盐等杂质沉积在加热电阻器上而引起的流量测量特性劣化的热式流量测量仪器。解热方案：加热电阻7设置在子通道6中。通过加热电阻7的散热量来检测内燃机的进气流量。包括沉积在加热电阻器7上的盐被液滴消除构件12破坏，以从加热电阻器7流分离。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2004219134A Sealing member for flow rate measuring instrument 审中-公开
公开(公告)号：JP2004219134A
公开(公告)日：2004-08-05
申请号：JP2003004088
申请日：2003-01-10
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： KOBAYASHI CHIHIRO , IGARASHI SHINYA , ONIKAWA HIROSHI , OZAWA MASAYUKI
IPC分类号： G01F1/00 , G01F1/68 , G01F15/18
摘要： PROBLEM TO BE SOLVED: To provide a sealing member for flow rate measuring instrument that can suppress the fall of sealability even against the vibration etc., of an internal combustion engine, etc., while the member has good assembling workability.
SOLUTION: The sealing member 6 has lip-like projections on the outer peripheral side of its cross section. Lip sections C are inclined with respect to the sealing surface A of the member 6 and the member 6 is constituted to seal an object to be sealed when the front end sections of the lip sections C are crushed. When a negative pressure occurs, the member 6 is deformed to the negative pressure side and, in addition, the sealability of the member 6 is improved, because the crushed amounts of the lip sections C become larger. When an air flow rate measuring instrument and an intake pipe are actually assembled together, the lip sections C are crushed as compared with their shapes before the instrument and pipe are assembled together and the member 6 seals on the lip sections C sides. The sealing member 6 can improve the assembling workability of the assembling work, because the member 6 can be crushed easily at the time of assembling the measuring instrument and intake pipe together.
COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2005264771A Engine control system using air flow rate measuring device 审中-公开
标题翻译：使用空气流量测量装置的发动机控制系统
公开(公告)号：JP2005264771A
公开(公告)日：2005-09-29
申请号：JP2004075510
申请日：2004-03-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KADOHIRO TAKASHI , KAWASAKI TSUTOMU , ONIKAWA HIROSHI
IPC分类号： F02D45/00 , F02D21/08
摘要： PROBLEM TO BE SOLVED: To reduce the error of an air flow rate measuring device caused by the pulsation of an engine.
SOLUTION: In a system having an EGR system for returning exhaust gases to an intake system, the generated amounts of the pulsation of the engine and a reverse flow are largely changed by the return amount of EGR to the intake system. Since the effect of the pulsation of the engine on the air flow rate measuring device causes an approximately same error under specified conditions (engine rotational speed and EGR return amount), the error of the air flow rate measuring device by the pulsation of the engine can be corrected by a correction table using the rotational speed of the engine and the EGR amount to more accurately control the engine. Since the effect of the pulsation of the engine varied by the return amount of the EGR can be reduced, a highly accurate control can be performed in a diesel engine vehicle having particularly a very large return amount of EGR and having no throttle valve.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：减少由发动机的脉动引起的空气流量测量装置的误差。解决方案：在具有用于将废气返回到进气系统的EGR系统的系统中，所产生的发动机的脉动量和逆流的产生量大大地改变到进气系统的EGR返回量。由于发动机的脉动对空气流量测量装置的影响在规定条件（发动机转速和EGR返回量）下引起大致相同的误差，所以通过发动机的脉动使空气流量测量装置的误差可以通过使用发动机的转速和EGR量的校正表来校正，以更精确地控制发动机。由于可以减少发动机的脉动的影响，所以可以减少EGR的返回量，从而能够在具有非常大的回流量的EGR并且没有节流阀的柴油发动机车辆中进行高精度的控制。版权所有（C）2005，JPO＆NCIPI

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