公开(公告)号：US08656764B2

公开(公告)日：2014-02-25

申请号：US13472861

申请日：2012-05-16

申请人： Noboru Kitahara

发明人： Noboru Kitahara

IPC分类号： G01M15/04

CPC分类号： F02D41/18 ,  F02D2041/281 ,  G01F1/6842 ,  G01F1/692 ,  G01F1/6965 ,  G01F1/72 ,  G01F5/00

摘要： A converting map for an area of a backward air-flow is set based on a relationship between an output and a flow-rate, which are obtained in an air flow in which pulsation including the backward air-flow is generated. The backward air-flow has a dynamic property. The converting map of the present disclosure has a conversion characteristic, which is close to a characteristic in the backward air-flow. Accordingly, it is not necessary to correct the converting map by complicated processes and thereby accuracy of measurement for the area of the backward air-flow is increased.

摘要翻译： 基于在产生包括逆气流的脉动的空气流中获得的输出与流量之间的关系来设定逆向空气流的区域的转换图。 向后的气流具有动态特性。 本公开的转换图具有接近逆向气流中的特性的转换特性。 因此，不需要通过复杂的处理来校正转换图，从而提高逆向气流的面积的测量精度。

公开(公告)号：US20130014573A1

公开(公告)日：2013-01-17

申请号：US13547336

申请日：2012-07-12

申请人： Shinichi KAMIYA ,  Noboru Kitahara

发明人： Shinichi KAMIYA ,  Noboru Kitahara

IPC分类号： G01M15/04

CPC分类号： G01F1/6842 ,  F02D41/18 ,  F02D41/187 ,  G01F1/72 ,  G01F5/00 ,  G01F15/12

摘要： An air flow measuring device takes in part of intake air flowing through an intake passage. The device includes a housing and a sensor. The housing defines a bypass flow passage through which taken-in intake air passes and which has an outlet that opens on an outer wall of the housing. The sensor is accommodated in the bypass passage to produce an electrical signal as a result of heat transfer between taken-in intake air and the sensor. The outlet of the bypass passage includes vertical and non-vertical openings. The vertical opening opens toward a downstream side of a flow of intake air in the intake passage and is provided perpendicular to the flow of intake air. The non-vertical opening is provided non-perpendicularly to the flow of intake air in the intake passage. The outlet is a continuous stretch of opening where the vertical and non-vertical openings are continuously formed.

摘要翻译： 空气流量测量装置摄取通过进气通道的进气的一部分。 该装置包括壳体和传感器。 壳体限定旁路流动通道，吸入的空气通过该通道，并具有在外壳的外壁上开口的出口。 传感器被容纳在旁路通道中，由于吸入进气和传感器之间的热传递而产生电信号。 旁路通道的出口包括垂直和非垂直的开口。 垂直开口朝向进气通道中的进气流的下游侧开口，并且垂直于进气的流动。 非垂直开口与进气通道中的进气的流动非垂直地设置。 出口是连续形成开口的连续的开口。

公开(公告)号：US20130014572A1

公开(公告)日：2013-01-17

申请号：US13495127

申请日：2012-06-13

申请人： Noboru Kitahara

发明人： Noboru Kitahara

IPC分类号： G01M15/04

CPC分类号： G01F1/6842

摘要： An airflow measuring device has a bypass passage accommodating a thermal-type sensor configured to conduct heat transfer with air. A mainstream of intake air partially flows through the bypass passage and flows out of an outlet, as an after-bypass-passage flow. The mainstream partially flows along the outer surface of the airflow measuring device, without passing through the bypass passage, as an outside-passage flow. The outer surface of the airflow measuring device defines a throttle at the downstream of the outlet. The throttle merges the after-bypass-passage flow with the outside-passage flow and guides the merged flow to the downstream.

摘要翻译： 气流测量装置具有容纳热空气传感器的热式传感器的旁路通路。 进气的主流部分地流过旁通通道，并且作为旁通通道流动从出口流出。 主流部分地沿着气流测量装置的外表面流动，而不通过旁通通道作为外部通道流动。 气流测量装置的外表面在出口的下游限定一个节气门。 节气门将旁通通道流与外通道流合并，并将合流引导到下游。

公开(公告)号：US20080307867A1

公开(公告)日：2008-12-18

申请号：US12120882

申请日：2008-05-15

申请人： Takashi Enomoto ,  Noboru Kitahara

发明人： Takashi Enomoto ,  Noboru Kitahara

IPC分类号： G01M15/00

CPC分类号： G01F1/6842

摘要： An air flow measuring device has a throttle portion provided in a first sub-passage, a second sub-passage branched from the first sub-passage at an upstream side of the throttle portion, and a flow amount sensor located in the second sub-passage. The second sub-passage is configured to introduce therein a part of air flowing in the first sub-passage, and an inlet of the second sub-passage is open into the first sub-passage at one side in a first radial direction perpendicular to a flow direction of air flowing in the first sub-passage. Furthermore, the throttle portion is provided to gradually reduce a passage dimension of the first sub-passage in a second radial direction, as toward an outlet of the first sub-passage. Here, the second radial direction is perpendicular to a surface defined by the first radial direction and the flow direction of air in the first sub-passage.

摘要翻译： 气流测量装置具有设置在第一子通道中的节流部分，在节流部分的上游侧从第一子通道分支的第二子通道和位于第二子通道中的流量传感器 。 第二子通道构造成在其中引入在第一子通道中流动的一部分空气，并且第二子通道的入口在垂直于第一子通道的第一径向方向的一侧向第一子通道开放 在第一子通道中流动的空气的流动方向。 此外，节流部设置成朝向第一子通道的出口逐渐减小第一子通道的沿第二径向的通道尺寸。 这里，第二径向垂直于由第一子通道中的第一径向方向和空气的流动方向限定的表面。

公开(公告)号：US20070242725A1

公开(公告)日：2007-10-18

申请号：US11727814

申请日：2007-03-28

申请人： Noboru Kitahara

发明人： Noboru Kitahara

IPC分类号： G01N25/60

CPC分类号： G01F1/6842

摘要： A thermal flow detecting apparatus is provided for detecting fluid flow in a flow passage. The thermal flow detecting apparatus includes a bypass passage portion defining therein a bypass passage through which fluid bypasses the flow passage. The thermal flow detecting apparatus further includes a detecting element that is provided in the bypass passage portion. The detecting element is arranged at a location eccentrically displaced from a center of a cross section of the bypass passage portion. The thermal flow detecting apparatus further includes a throttle portion provided upstream of the detecting element in the bypass passage portion for throttling the cross section partially on a side of the detecting element.

摘要翻译： 提供一种用于检测流路中的流体流动的热流检测装置。 热流检测装置包括旁路通道部分，其中限定有旁路通道，流体绕流路通过。 热流检测装置还包括设置在旁通通路部分中的检测元件。 检测元件布置在从旁路通道部分的横截面的中心偏心偏移的位置处。 热流检测装置还包括设置在旁通通道部分中的检测元件的上游的节流部分，用于在检测元件的一侧部分地节流截面。

公开(公告)号：US08844342B2

公开(公告)日：2014-09-30

申请号：US13604652

申请日：2012-09-06

申请人： Noboru Kitahara ,  Takashi Ooga ,  Takao Ban

发明人： Noboru Kitahara ,  Takashi Ooga ,  Takao Ban

IPC分类号： G01M15/04

CPC分类号： G01M15/04 ,  F02D41/18 ,  G01F1/6842

摘要： An air flow measuring device includes a housing, a sensor, and a throttle that is provided on an outer wall surface of the housing. The throttle merges together a bypass-passing flow and an outside-passing flow, and guides the merged flow toward the downstream side with the merged flow narrowed. The throttle includes two raised portions and a cover that bridges between the two raised portions and is opposed to the outer wall surface of the housing. The cover includes an inner surface exposed to the throttle, and an outer surface exposed to outside of the throttle. A peripheral border of the cover includes an upstream edge which defines the outer surface on the upstream side. At least a region of the outer surface including the upstream edge is swollen more outwardly in a shape of a projecting curved surface further on the downstream side.

摘要翻译： 气流测量装置包括壳体，传感器和设置在壳体的外壁表面上的节流阀。 节气门将旁通流和外流流合并在一起，并合并流动向下游侧引导合流。 节气门包括两个凸起部分和在两个凸起部分之间桥接并且与壳体的外壁表面相对的盖。 该盖包括暴露于节气门的内表面和暴露于节气门外部的外表面。 盖的外围边界包括限定上游侧的外表面的上游边缘。 包括上游边缘的外表面的至少一个区域在下游侧进一步向外膨胀成凸出的弯曲表面的形状。

公开(公告)号：US07661877B2

公开(公告)日：2010-02-16

申请号：US11727814

申请日：2007-03-28

申请人： Noboru Kitahara

发明人： Noboru Kitahara

IPC分类号： G01K13/02 ,  G01K1/08 ,  G01K7/00 ,  G01F1/68

CPC分类号： G01F1/6842

摘要： A thermal flow detecting apparatus detects fluid flow in a main flow passage. A bypass passage portion is provided through which some fluid bypasses the main flow passage. A detecting element is provided in the bypass passage portion and arranged at a location eccentrically displaced from the center of a cross section of the bypass passage portion. A throttle portion is provided upstream of the eccentric detecting element in the bypass passage portion for throttling the cross section partially on a side of the detecting element.

摘要翻译： 热流检测装置检测主流路中的流体流动。 提供旁路通道部分，一些流体绕过该通道部分绕过主流动通道。 检测元件设置在旁通通路部分中，并且布置在偏离旁路通道部分的横截面中心的位置处。 在旁通通路部分的偏心检测元件的上游设有节流部分，用于部分地在检测元件的一侧节流截面。

公开(公告)号：US07178388B2

公开(公告)日：2007-02-20

申请号：US11151642

申请日：2005-06-14

申请人： Yasuo Okuda ,  Masakazu Yamada ,  Satoshi Furukawa ,  Minoru Kondo ,  Noboru Kitahara ,  Shigeru Kamio ,  Harufumi Muto

发明人： Yasuo Okuda ,  Masakazu Yamada ,  Satoshi Furukawa ,  Minoru Kondo ,  Noboru Kitahara ,  Shigeru Kamio ,  Harufumi Muto

IPC分类号： G01M15/00

CPC分类号： G01F5/00 ,  G01F1/6842 ,  G01F1/696 ,  G01F1/6965 ,  G01F1/72

摘要： An intake air flow detecting device is provided to an intake air passage, through which intake air flows into an internal combustion engine. Intake air flow is divided into a main passage and a bypass passage. The detecting device includes a thermal air flowmeter, a bypass flow delay information calculating means, and a response delay compensating means. The thermal air flowmeter includes a detector arranged in the bypass passage for detecting an air flow amount in the intake air passage. The bypass flow delay information calculating means calculates a bypass flow delay information representing delay in variation in a flow amount in the bypass passage with respect to variation in a flow amount in the main passage. The response delay compensating means compensates delay in response of the air flowmeter in accordance with the bypass flow delay information.

摘要翻译： 进气流量检测装置设置在进气通道内，进气通过该进气通道流入内燃机。 进气流分为主通道和旁路通道。 检测装置包括热空气流量计，旁路流量延迟信息计算装置和响应延迟补偿装置。 热空气流量计包括布置在旁路通道中用于检测进气通道中的空气流量的检测器。 旁路流量延迟信息计算装置计算旁路流量延迟信息，其表示相对于主通道中的流量的变化，旁通通道中的流量的变化的延迟。 响应延迟补偿装置根据旁路流量延迟信息补偿空气流量计的响应延迟。

公开(公告)号：US5571964A

公开(公告)日：1996-11-05

申请号：US429471

申请日：1995-04-27

申请人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Tsunemitsu Kato ,  Takao Ban ,  Kunihiro Umezu ,  Noboru Kitahara ,  Minoru Kondo

发明人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Tsunemitsu Kato ,  Takao Ban ,  Kunihiro Umezu ,  Noboru Kitahara ,  Minoru Kondo

IPC分类号： G01F1/684 ,  G01F5/00

CPC分类号： G01F1/6842 ,  G01F5/00

摘要： A flow meter for measuring a flow rate of fluid includes a body providing a main passage through which the fluid flows. A plurality of support elements connect an inner wall surface of the body and a central element so as to support the central element substantially at the center of the main passage. An introducing port opens to the central element for introducing a part of the fluid flowing through the main passage. A branch passage is formed within the central element, through which such part of the fluid flows. A sensor is disposed within the branch passage for measuring a flow rate within the branch passage. An outlet opens to a portion of the central element located at upperstream of the downstream ends of the support elements for returning the fluid flowing through the branch passages to the main passage.

公开(公告)号：US08590368B2

公开(公告)日：2013-11-26

申请号：US13495127

申请日：2012-06-13

申请人： Noboru Kitahara

发明人： Noboru Kitahara

IPC分类号： G01M15/04

CPC分类号： G01F1/6842

摘要： An airflow measuring device has a bypass passage accommodating a thermal-type sensor configured to conduct heat transfer with air. A mainstream of intake air partially flows through the bypass passage and flows out of an outlet, as an after-bypass-passage flow. The mainstream partially flows along the outer surface of the airflow measuring device, without passing through the bypass passage, as an outside-passage flow. The outer surface of the airflow measuring device defines a throttle at the downstream of the outlet. The throttle merges the after-bypass-passage flow with the outside-passage flow and guides the merged flow to the downstream.

摘要翻译： 气流测量装置具有容纳热空气传感器的热式传感器的旁路通路。 进气的主流部分地流过旁通通道，并且作为旁通通道流动从出口流出。 主流部分地沿着气流测量装置的外表面流动，而不通过旁通通道作为外部通道流动。 气流测量装置的外表面在出口的下游限定一个节气门。 节气门将旁通通道流与外通道流合并，并将合流引导到下游。