公开(公告)号：US20210199482A1

公开(公告)日：2021-07-01

申请号：US17203359

申请日：2021-03-16

Applicant: DENSO CORPORATION

Inventor： Seiji YAOKO ,  Kazuaki UEDA ,  Shota TODA ,  Yuusuke YOSHIDA ,  Kengo ITO

IPC: G01F1/684 ,  F02D41/18 ,  G01F15/14

Abstract: A flowmeter includes a hollow housing, a first passage, a second passage, a detector, and a flat surface. The housing includes a first side wall and a second side wall and defines an inlet opening and an outlet opening that is defined in the first side wall. The first passage fluidly connects between the inlet opening and the outlet opening. The second passage branches off from the first passage. The detector is disposed in the second passage and configured to detect a flow rate of the target fluid flowing through the second passage. The flat surface is an outer surface of the first side wall and extends between an upstream end of the first side wall and the outlet opening along the main flow direction.

公开(公告)号：US20210172780A1

公开(公告)日：2021-06-10

申请号：US17181261

申请日：2021-02-22

Applicant: DENSO CORPORATION

Inventor： Kazuaki UEDA ,  Kengo ITO

IPC: G01F1/684 ,  G01F1/688

Abstract: A flowmeter is disposed in a passage through which a fluid flows. The flowmeter includes a first passage and a second passage. The first passage defines a first opening through which at least a part of the fluid flows into the first passage from the passage. The second passage branches off from the first passage and includes a flow rate detector configured to detect a flow rate of the fluid flowing through the second passage from the first passage. The first passage includes a vortex reducer configured to restrict a vortex from generating.

公开(公告)号：US20210156721A1

公开(公告)日：2021-05-27

申请号：US17168908

申请日：2021-02-05

Applicant: DENSO CORPORATION

Inventor： Yuusuke YOSHIDA ,  Seiji YAOKO ,  Kazuaki UEDA ,  Kengo ITO

IPC: G01F1/684

Abstract: A flowmeter is inserted into a main passage through which a target fluid flows. The flowmeter includes a housing, a sub passage, an inlet portion, an outlet portion, a flow rate detector, and a protrusion. The housing includes a side surface and a tip end surface. A part of the target fluid flows into the sub passage from the main passage. The target fluid flows into the sub passage through the inlet portion and flows out of the sub passage through the outlet portion. The flow rate detector is configured to detect a flow rate of the target fluid flowing through the sub passage. The tip end surface includes a first end area and a second end area. The protrusion protrudes from the tip end surface and is located in both the first end area and the second end area.

公开(公告)号：US20210156722A1

公开(公告)日：2021-05-27

申请号：US17168755

申请日：2021-02-05

Applicant: DENSO CORPORATION

Inventor： Yuusuke YOSHIDA ,  Atsushi HONDA ,  Kazuaki UEDA ,  Kengo ITO

IPC: G01F1/69

Abstract: A flow rate measurement device includes a housing having a main flow path, a sub flow path formed inside the housing to allow a part of a fluid to be detected flowing through the main flow path, an inlet portion that allows the fluid to be measured flowing in the main flow path to flow into the sub flow path, an outlet portion that allows the fluid to be measured flowing in the sub flow path to flow out to the main flow path, a flow rate detection unit that is provided between the inlet portion and the outlet portion in the sub flow path and detects a flow rate of the fluid to be measured flowing through the sub flow path, and a communication hole that is provided between the flow rate detection unit and the outlet portion and communicates the sub flow path and the main flow path.

公开(公告)号：US20150330313A1

公开(公告)日：2015-11-19

申请号：US14711304

申请日：2015-05-13

Applicant: DENSO CORPORATION

Inventor： Kazuaki UEDA ,  Tomoaki NAKANO ,  Shigeru MAEDA ,  Masataka NISHIKORI ,  Shuhei OE ,  Hikaru KOKUMAI

IPC: F02D13/02

CPC classification number: F02D13/0219 ,  F01L1/34 ,  F02D13/0215 ,  F02D13/0269 ,  F02D41/0005 ,  F02D41/123 ,  F02D41/22 ,  F02D2013/0292 ,  F02D2041/001 ,  Y02T10/142 ,  Y02T10/42

Abstract: A control system for an internal combustion engine has an intake valve, an exhaust valve, and an exhaust purifying catalyst that purifies exhaust gas after combustion of a fuel. During a fuel cut in which no fuel is supplied, a closing timing of the intake valve is controlled to a delayed angle side more than at a timing when the fuel is supplied and to a delayed angle side more than at a timing at a bottom dead center of an intake stroke, and an opening timing of the exhaust valve is controlled to an advanced angle side more than at the timing when the fuel is supplied and to an advanced angle side more than at the timing at the bottom dead center of an expansion stroke.

Abstract translation: 用于内燃机的控制系统具有净化燃料燃烧后的废气的进气阀，排气阀和排气净化催化剂。 在没有燃料供给的燃料切断期间，进气门的关闭正时比在燃料被供给的时间更多地控制到延迟角度一侧，并且比在下死点的定时更长的延迟角度 进气行程的中心，并且排气门的打开正时被控制为比在燃料被供给的时刻更大的提前角侧，并且超过在膨胀的下死点的定时处的提前角侧 行程。

公开(公告)号：US20210164819A1

公开(公告)日：2021-06-03

申请号：US17173642

申请日：2021-02-11

Applicant: DENSO CORPORATION

Inventor： Kazuaki UEDA ,  Yuusuke YOSHIDA ,  Kengo ITO

IPC: G01F1/684

Abstract: A flowmeter is disposed in a passage through which a fluid flows. The flowmeter includes a first passage and a second passage. The first passage defines an opening through which a part of the fluid flows into the flowmeter from the passage. The second passage branches off from the first passage and includes a flow rate detector configured to detect a flow rate of the fluid flowing through the second passage from the first passage. The second passage has one end at which the second passage branches off from the first passage and the other end. The second passage includes at least one end opening at the other end and an inflow reducer configured to restrict the fluid from flowing into the second passage through the at least one end opening.

公开(公告)号：US20180266381A1

公开(公告)日：2018-09-20

申请号：US15573914

申请日：2016-05-12

Applicant: DENSO CORPORATION ,  SOKEN, INC.

Inventor： Hideaki KOSUGE ,  Fumiaki AOKI ,  Shohei ISHIDA ,  Shunichi TAKEDA ,  Kazuaki UEDA

IPC: F02P15/10 ,  F02P17/12 ,  F02P3/04

Abstract: An ignition apparatus for internal combustion engines is provided. The ignition apparatus is equipped with an ECU. The ECU monitors a path length of a discharge of a spark for a period of time in which a second circuit delivers or inputs energy in the form of a threshold value determination. When the path length has become too short, the ECU determines that ignition is expected to be delayed and then selects a special mode to control the delay of the ignition. The ECU increase a target value of an energy input amount. This enables the delay of ignition resulting from a short extension of the path length to be minimized. The ignition apparatus equipped with the second circuit to continue the discharge of sparks is, thus, capable of reducing a variation in ignition without the need for uniformly increasing the energy input amount.