公开(公告)号：US20220099053A1

公开(公告)日：2022-03-31

申请号：US17427027

申请日：2020-01-10

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA

IPC: F02M26/49 ,  F02M26/14 ,  F02M26/17 ,  F02D41/00

Abstract: An EGR device is provided with: an EGR passage for allowing a portion of exhaust gas from an engine to flow to an intake passage; an EGR valve for adjusting an EGR flow rate through the EGR passage; a throttle valve provided in the intake passage; and an electronic control device which calculates a fully closed reference intake pressure based on an operating state of the engine during EGR valve fully-closing, and which diagnoses an abnormality due to valve-opening locking of the EGR valve based on the calculated fully closed reference intake pressure. The ECU determines a foreign matter biting abnormality of the EGR valve based on the intake pressure, and based on the result of adding the fully closed reference intake pressure, calculated according to the rotational speed and the load of the engine, to an intake-pressure increase allowance calculated according to the rotational speed.

公开(公告)号：US20210199075A1

公开(公告)日：2021-07-01

申请号：US17111102

申请日：2020-12-03

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Kaisho SO

IPC: F02M26/44 ,  F02M26/41 ,  F02M26/19

Abstract: An EGR gas distributor for distributing EGR gas to branch pipes of an intake manifold includes a plurality of gas distribution passages arranged side by side for the branch pipes, a gas inflow passage and a gas chamber to deliver the EGR gas to each of the gas distribution passages. The gas inflow passage includes two, first and second, gas passage parts branched in a single stage. When the EGR gas distributor is mounted on the intake manifold, a passage cross-section of each gas passage part perpendicular to a central axis has an uppermost vertex and a lowermost vertex. The passage cross-sections of the gas passage parts are sized such that their lengths in a vertical direction are gradually longer from an upstream side of the first gas passage part to a downstream side of the second gas passage part.

公开(公告)号：US20200099069A1

公开(公告)日：2020-03-26

申请号：US16495655

申请日：2018-04-20

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Naruto ITO ,  Makoto FUKUI

IPC: H01M8/04664

Abstract: In a fuel cell system, when fully closing an upstream-side valve, a controller performs controlled fully-closed opening-degree control that adjusts the opening degree of the upstream-side valve to a controlled fully-closing opening degree greater than zero by means of a drive mechanism. Upon determining that, during the controlled fully-closed opening-degree control, there is a leakage of oxidant gas in the upstream-side valve, the controller corrects the controlled fully-closed opening degree to the valve-closing side until reaching a zero-position opening degree at which the amount of leakage of the oxidant gas in the upstream-side valve becomes zero.

公开(公告)号：US20170175662A1

公开(公告)日：2017-06-22

申请号：US15363578

申请日：2016-11-29

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Shinji KAWAI ,  Makoto FUKUI ,  Kasumi MISHIMA ,  Hirokazu TASHITA ,  Tsutomu KUNIYOSHI ,  Kensuke HIROI

IPC: F02D41/22 ,  F02M25/06

CPC classification number: F02D41/22 ,  F01M13/00 ,  F01M2013/0044 ,  F02D41/123 ,  F02D41/18 ,  F02D2250/08 ,  F02M25/06 ,  Y02T10/40

Abstract: A blow-by gas returning (BGV) apparatus includes a blow-by gas storage unit, a throttle device placed in an intake passage, a BGV passage for allowing blow-by gas to flow to the intake passage downstream of the throttle device for recirculation, and a PCV valve for regulating a flow rate of blow-by gas. An abnormality diagnosis device includes an air flow meter to detect an intake amount in the intake passage upstream of the throttle device and an electronic control unit (ECU) for diagnosis. The ECU controls the PCV valve to a first opening degree and a second opening degree when an engine is during deceleration fuel cut, and diagnoses abnormality of the BGV apparatus based on a first intake amount detected under control with the first opening degree and a second intake amount detected under control with the second opening degree.

公开(公告)号：US20160281655A1

公开(公告)日：2016-09-29

申请号：US15070349

申请日：2016-03-15

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Minoru AKITA ,  Tsutomu KUNIYOSHI

IPC: F02M31/04 ,  F02M26/52

CPC classification number: F02M31/042 ,  F02M31/083 ,  F02M31/093 ,  F02M31/145 ,  F02M35/10255 ,  F02M35/10268 ,  Y02T10/126

Abstract: An engine, an intake passage to introduce intake air to the engine, an exhaust passage to discharge exhaust air from the engine, and a high-temperature duct connected to the intake passage to introduce high-temperature air around the exhaust passage into the engine are provided in an engine compartment. The intake passage includes an intake-air inlet port to introduce outside air as low-temperature air. A passage switching valve provided between the intake passage and the high-temperature duct switches passages of the high-temperature air from the high-temperature duct and the low-temperature air from the intake air inlet port so as to selectively flow the air downstream of the intake passage. A valve control unit controls switching according to the temperature inside the compartment.

Abstract translation: 发动机，将引入空气引入发动机的进气通道，用于排出来自发动机的排气的排气通道和连接到进气通道以将排气通道周围的高温空气引入发动机的高温通道， 设在发动机舱内。 进气通道包括作为低温空气引入外部空气的进气口。 设置在进气通道和高温管道之间的通道切换阀切换来自高温管道的高温空气的通道和来自进气口的低温空气，以便选择性地将空气下游的空气 进气通道。 阀控制单元根据隔室内的温度控制切换。

公开(公告)号：US20140020664A1

公开(公告)日：2014-01-23

申请号：US13933651

申请日：2013-07-02

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Takehide NAKAMURA

IPC: F02B33/00

CPC classification number: F02D41/0005 ,  F02B33/00 ,  F02B33/446 ,  F02D11/10 ,  F02D37/02 ,  F02D41/0007 ,  F02D41/005 ,  F02D41/12 ,  F02M26/06 ,  F02P5/1516 ,  Y02T10/144 ,  Y02T10/42 ,  Y02T10/46 ,  Y02T10/47

Abstract: An engine includes an injector, an ignition plug, a supercharger, an electronic throttle device, and an EGR apparatus. An EGR passage has an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to the intake passage upstream from a compressor. A fresh-air introduction passage is arranged to introduce fresh air to a surge tank downstream from the electronic throttle device and a fresh-air control valve is provided to regulate a fresh air amount. When an ECU determines that the engine is under deceleration and under fuel supply, the ECU closes the electronic throttle device to a predetermined opening degree to scavenge EGR gas flowing from the EGR passage and remaining in the intake passage, opens a fresh-air control valve to a predetermined opening degree, and causes the ignition plug to retard an ignition timing.

Abstract translation: 发动机包括喷射器，火花塞，增压器，电子节气门装置和EGR装置。 EGR通道具有连接到涡轮下游的排气通道的入口和连接到压缩机上游的进气通道的出口。 新鲜空气引入通道被布置成将新鲜空气引入电子节流装置下游的缓冲罐，并且设置新鲜空气控制阀以调节新鲜空气量。 当ECU判断发动机处于减速状态和燃料供给状态时，ECU将电子节气门装置关闭到预定的开度，以清除从EGR通道流出并残留在进气通道中的EGR气体，打开新鲜空气控制阀 达到预定的开度，并使火花塞延迟点火正时。

公开(公告)号：US20240068580A1

公开(公告)日：2024-02-29

申请号：US18229492

申请日：2023-08-02

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Shinji KAWAI ,  Mamoru YOSHIOKA

IPC: F16K11/074 ,  F16K3/02 ,  F16K3/08 ,  F16K27/04

CPC classification number: F16K11/074 ,  F16K3/0209 ,  F16K3/0227 ,  F16K3/08 ,  F16K27/045

Abstract: A passage switching device to switch flow passages includes a rotary disk and a fixed disk which are stacked in an axial direction. The rotary disk is provided with at least one rotary disk communication path penetrating in the axial direction, and the fixed disk is provided with a plurality of fixed disk communication paths penetrating in the axial direction. The flow passages are switched by rotating and driving the rotary disk to switch combination of the rotary disk communication path and the fixed disk communication path for communication. There is provided an elastic member between the housing and the rotary disk, between the rotary disk and the fixed disk, and between the fixed disk and the housing with respect to the axial direction.

公开(公告)号：US20200217262A1

公开(公告)日：2020-07-09

申请号：US16642072

申请日：2018-07-03

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA

IPC: F02D41/12 ,  F02D43/00 ,  F02B37/00 ,  F02M25/08

Abstract: This engine system is provided with: an engine; an injector; a super charger (including a compressor); an electronic throttle device provided in an air intake passage, the compressor being provided in the air intake passage upstream of the electronic throttle device; an evaporated fuel treatment apparatus (including a canister, a purge passage, and a purge valve), an outlet of the purge passage being connected to the air intake passage upstream of the compressor; and an electronic control unit (ECU). The ECU controls the purge valve in order to perform a purge cut of the vapor from the purge passage toward the air intake passage when determining that the engine has started to decelerate, and thereafter controls the injector in order to perform fuel cut to the engine.

公开(公告)号：US20190372139A1

公开(公告)日：2019-12-05

申请号：US16539025

申请日：2019-08-13

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Naruto Ito ,  Makoto Fukui

IPC: H01M8/04746 ,  H01M8/04111 ,  H01M8/04302 ,  H01M8/04089 ,  H01M8/04664 ,  F16K1/226

Abstract: In a fuel cell system, each of an inlet sealing valve and an outlet integration valve is provided with a valve seat including a valve hole and a seat surface formed on a circumferential edge of the valve hole, a valve element formed, on its outer periphery, with a seal surface corresponding to the seat surface, and a motor to move the valve element away from the valve seat upon receipt of electric power supplied from outside. The valve seat is provided with a seal member to seal between the valve element and the valve seat during non-operation of the motor. In an inlet-side bypass passage connected to an air supply passage by detouring around the inlet sealing valve, there are arranged an inlet-side bypass passage and an inlet bypass valve.

公开(公告)号：US20150082790A1

公开(公告)日：2015-03-26

申请号：US14471493

申请日：2014-08-28

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Mamoru YOSHIOKA ,  Takehide NAKAMURA

IPC: F02M25/07 ,  F02B37/16

CPC classification number: F02M26/06 ,  F01M13/00 ,  F02B29/0406 ,  F02B37/127 ,  F02B37/16 ,  F02B37/18 ,  F02D9/08 ,  F02M26/10 ,  F02M26/23 ,  F02M35/10209 ,  F02M35/10281 ,  F02M35/10386 ,  Y02T10/121 ,  Y02T10/144 ,  Y02T10/42

Abstract: A low-pressure-loop EGR apparatus of an engine includes an EGR passage to allow part of exhaust gas discharged from a combustion chamber to return as EGR gas to the combustion chamber, and an EGR valve to regulate a flow of EGR gas in the EGR passage. This passage has an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to an intake passage upstream of a compressor. In the intake passage, an intake bypass passage is provided to connect an upstream portion and a downstream part from the compressor. An ABV is provided in the passage. To remove EGR gas remaining in the ABV, one end of a residual gas removal passage is connected to the intake passage downstream of a throttle valve and the other end of the same passage is connected to the ABV.

Abstract translation: 发动机的低压回路EGR装置包括：EGR通路，其使得从燃烧室排出的废气的一部分作为EGR气体返回到燃烧室;以及EGR阀，其调节EGR气体在EGR中的流量 通道。 该通道具有连接到涡轮下游的排气通道的入口和连接到压缩机上游的进气通道的出口。 在进气通道中，设有进气旁路通道，以连接来自压缩机的上游部分和下游部分。 通道中提供了一个ABV。 为了除去残留在ABV中的EGR气体，残留气体排出通路的一端与节流阀下游的进气通路连接，同一通路的另一端与ABV连接。