公开(公告)号：JP2013160215A

公开(公告)日：2013-08-19

申请号：JP2012025719

申请日：2012-02-09

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TAKEDA HIDETO ,  TAKEYAMA MASAKI ,  OKAJIMA MASAHIRO ,  SUZUKI KUNINORI ,  MOTOE YUSUKE ,  KURIMOTO NAOKI ,  FUJINO TOMOKI

IPC: F02D41/34 ,  F02D19/02 ,  F02D41/02 ,  F02M21/02

CPC classification number: Y02T10/32

Abstract: PROBLEM TO BE SOLVED: To optimize combustion in a gas engine without causing an increase in cost.SOLUTION: An intake pipe 12 of an engine 10 includes a gas supply valve 14 for supplying the gas fuel of low pressure supplied from a gas pipe L1 in a state of supply pressure from the gas pipe L1 to the intake pipe 12. An intake port 11a includes a fuel injection valve 15 for injecting gas fuel in a state of higher pressure than that of gas fuel supplied from the gas pipe L1. An ECU 40 calculates first fuel quantity supplied to the intake pipe 12 by the gas supply valve 14 and a second fuel quantity injected to the intake port by the fuel injection valve 15 as a fuel quantity required for the combustion of the engine 1 and executes the fuel quantity control of the gas supply valve 14 and the fuel injection valve 15 on the basis of each of the fuel quantity. At the latter half time in a valve opening period of an intake valve 21, fuel injection timing is controlled so that the gas fuel is injected by the fuel injection valve 15.

Abstract translation: 要解决的问题：优化燃气发动机中的燃烧，而不会导致成本增加。解决方案：发动机10的进气管12包括供气阀14，用于将从气体管L1供给的低压气体燃料供给 从气体管道L1到进气管12的供给压力的状态。进气口11a包括用于在比从气体管道L1供给的气体燃料高的状态下喷射气体燃料的燃料喷射阀15。 ECU40通过燃气供给阀14计算供给到进气管12的第一燃料量和通过燃料喷射阀15喷射到进气口的第二燃料量作为发动机1的燃烧所需的燃料量，并执行 基于每个燃料量对燃气供给阀14和燃料喷射阀15进行燃料量控制。 在进气门21的阀打开期间的后半段，控制燃料喷射正时，使得燃料喷射阀15喷射气体燃料。

公开(公告)号：JP2011112026A

公开(公告)日：2011-06-09

申请号：JP2009271331

申请日：2009-11-30

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO ,  KUROYANAGI MASATOSHI ,  NISHIJIMA YOSHIAKI ,  MATSUYAMA AKIHIRO

IPC: F01N3/02 ,  B01D53/86 ,  B03C3/40 ,  B03C3/41 ,  B03C3/68 ,  F01N3/28

CPC classification number: F01N3/0275 ,  F01N3/01 ,  F01N2240/04

Abstract: PROBLEM TO BE SOLVED: To provide an electric power supply device for an exhaust emission control device whose purifying amount is improved. SOLUTION: The exhaust emission control device is equipped with the electric power supply device 50 (an electric power supply means) which is applied to an exhaust emission control system 10 for oxidizing and purifying PMs (particulate) within exhaust by executing a corona discharge from a discharging electrode 21 arranged in an exhaust passage 11 of an internal combustion engine, and repeats an instantaneous voltage application to the discharging electrode 21 two or more times to thereby supply electric power employed for the corona discharge. The time required for the instantaneous voltage application by the electric power supply device 50 is made shorter than a given time period (a predetermined time period) required for arc discharge. Accordingly, the arc discharge can be restrained from being generated and therefore an applied voltage can be driven to be higher, eventually enabling an increase in a PM purifying amount. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供一种净化量提高的废气排放控制装置的电力供给装置。 解决方案：废气排放控制装置配备有施加到废气排放控制系统10的电力供应装置50（电力供应装置），用于通过执行电晕来氧化和净化排气中的PM（颗粒） 从布置在内燃机的排气通道11中的放电电极21放电，并重复对放电电极21的瞬时电压施加两次或更多次，从而提供用于电晕放电的电力。 电力供给装置50的瞬时施加电压所需的时间短于电弧放电所需的规定时间（规定时间）。 因此，可以抑制电弧放电，从而可以驱动施加的电压更高，最终能够提高PM净化量。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2007107399A

公开(公告)日：2007-04-26

申请号：JP2005296559

申请日：2005-10-11

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/02 ,  B01D45/12 ,  B01D45/16 ,  B01D45/18 ,  F01N3/04

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for preventing exhaust fine particulates reserved therein from being drifted up by the flow of exhaust gas in an exhaust pipe, mixed into exhaust gas again, and released to the outside. SOLUTION: The exhaust emission control device 1 for an internal combustion engine is provided on the midway of the exhaust pipe 2. It comprises a gas flow deflecting means 45 for deflecting the flow of exhaust gas distributing in the exhaust pipe 2 to generate centrifugal force on exhaust fine particulates in the exhaust gas, and a capacity chamber 41 provided on the side wall of the exhaust pipe 2 and opened to the exhaust pipe 2 for trapping the exhaust fine particulates separated from the exhaust gas with the centrifugal force and reserving it. The capacity chamber 41 is provided so that the exhaust fine particulates are mutually joined in abutment with the centrifugal force on the exhaust fine particulates when separated from the flow of the exhaust gas. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决的问题：提供一种废气排放控制装置，用于防止废气中排出的微细颗粒被排气管中的废气流漂移，再次混入废气中并释放到外部。 解决方案：用于内燃机的废气排放控制装置1设置在排气管2的中途。它包括气流偏转装置45，用于使分配在排气管2中的废气流偏转以产生 排气中的排气微粒的离心力，以及设置在排气管2的侧壁上的容量室41，并且向排气管2开口，用于捕集与排气分离的排气微粒与离心力并保留 它。 容纳室41被设置成使排气微粒在离开废气流时与废气微粒的离心力相互接合。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006342730A

公开(公告)日：2006-12-21

申请号：JP2005169462

申请日：2005-06-09

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/02

Abstract: PROBLEM TO BE SOLVED: To realize a cohesive device capable of holding insulation with a simple constitution, without causing electric current leakage by a deposit of an exhaust particulate to an insulator part even in the presence of the exhaust particulate of the high concentration, in an exhaust processing system of an internal combustion engine using corona discharge. SOLUTION: A corona discharge electrode 2 and a conductive net 3 being a dust collecting electrode are oppositely arranged in an exhaust passage 11 of the cohesive device 1. The corona discharge electrode 2 has a discharge part 22 positioned in a substantially central part of the exhaust passage 11, a conductive part 21 introducing high voltage from an external power source to the discharge part 22, and the insulator part 23 holding the outer periphery of the conductive part 21. A Pt carrying part projecting in a ring shape is arranged on the outer periphery of the insulator part 23, and the insulation is held by removing the sticking exhaust particulate by the catalytic action of Pt included on at least its outside surface. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2006118420A

公开(公告)日：2006-05-11

申请号：JP2004306635

申请日：2004-10-21

Applicant: Denso Corp ,  Nippon Soken Inc ,  株式会社デンソー ,  株式会社日本自動車部品総合研究所

Inventor： NOMURA SHIGEO ,  OKAJIMA MASAHIRO ,  KOIE KAZUTOSHI ,  MIYOSHI SHINJI ,  GOTO MORIYASU ,  TOMITA HIROKUNI

IPC: F02M61/18 ,  F02M61/10

Abstract: PROBLEM TO BE SOLVED: To reduce the possibility of fuel leak by improving sealing performance of a second injection hole 3 which is opened and closed in a slide manner in a fuel injection nozzle 1.
SOLUTION: The nozzle 1 is provided with a body 4 including the second injection hole 3 opened and closed in the slide manner and a needle 5 opening and closing a first and the second injection hole 2, 3. The second injection hole 3 is opened while a needle side slide part (an outer circumference surface 26 of a sliding member 25) slides on a body side sliding part (notched circumference surface 23). The needle side slide part and the body side slide part are pressed against each other by elastic force of a spring 32 energizing the sliding member 25 in a radial direction. As a result, the needle side sliding part can be concentratedly pressed against the body side sliding part on which an opening part 31 of the second injection hole 3 is provided. Consequently, fuel penetrates in a gap between the needle side sliding part and the body side sliding part to reduce the possibility of fuel leak from the second injection hole 3.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过提高在喷射喷嘴1中以滑动的方式打开和关闭的第二喷射孔3的密封性能来降低燃料泄漏的可能性。解决方案：喷嘴1是 设置有包括以滑动方式打开和关闭的第二注入孔3的主体4和打开和关闭第一和第二注入孔2,3的针5.第二注入孔3打开，而针侧滑动部 滑动构件25的外周面26）在主体侧滑动部（切口圆周面23）上滑动。 针侧滑动部和主体侧滑动部通过使径向滑动部件25通电的弹簧32的弹力而彼此挤压。 结果，针侧滑动部可以集中地压靠在其上设置有第二喷射孔3的开口部31的主体侧滑动部。 因此，燃料在针侧滑动部和主体侧滑动部之间的间隙中渗透，以减少燃料从第二喷射孔3泄漏的可能性。（C）2006，JPO＆NCIPI

公开(公告)号：JP2006083807A

公开(公告)日：2006-03-30

申请号：JP2004271286

申请日：2004-09-17

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F02M27/04 ,  B01J19/08 ,  B03C1/00 ,  C01B13/02 ,  F02M33/00

CPC classification number: Y02T10/126

Abstract: PROBLEM TO BE SOLVED: To provide an oxygen enriching device capable of increasing oxygen concentration of air efficiently and supplying the air to an engine continuously.
SOLUTION: This oxygen enriching device 1 has a magnetic passage 2 provided with a magnet device 29 for generating magnetic field in the direction crossing the direction of circulation of air substantially orthogonally on an outer peripheral side of a circulation pipe part 12 for circulating air, an expanded diameter passage 3 connected with the downstream side of the magnetic passage 2 and composed of an expanded diameter pipe part 13 for expanding circulation cross sectional area gradually, and a separation passage 4 composed of a separation external pipe part 14 extended from the expanded diameter pipe part 13 in the expanded diameter passage 3 on the downstream side of the expanded diameter passage 3 and a separation internal pipe part 15 opened to include at least its central part in its inside. The air entering between the separation internal pipe part 15 and the separation external pipe part 14 in the separation passage 4 is supplied to the engine and the air entering the separation internal pipe part 15 is exhausted to the outside.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供能够有效地增加空气的氧浓度并将空气连续供给到发动机的富氧装置。 解吸方案：该富氧装置1具有磁通路2，该磁通路2设置有用于在循环管道部分12的外周侧沿与空气循环方向交叉的方向产生磁场的磁场29，用于循环 空气，与磁通路2的下游侧连接并由逐渐扩大循环截面积的扩径管部13构成的扩径通路3，以及由分离外管部14构成的分离通路4， 膨胀直径通道3中的扩径管13在扩径通道3的下游侧，分离内管部15至少包括其内部的中心部分。 进入分离内管部15与分离通道4内的分离外管部14之间的空气被供给到发动机，进入分离内管部15的空气被排出到外部。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003314412A

公开(公告)日：2003-11-06

申请号：JP2002125757

申请日：2002-04-26

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F02M61/18 ,  F02M51/06

Abstract: PROBLEM TO BE SOLVED: To provide an injector which reduces the rate of change of a fuel injection amount even if the contact part of a valve member is worn, in a structure where the contact part of the valve member is seated on the conical surface of a valve body in a protruded curved shape.
SOLUTION: The valve body 12 comprises, on an inner peripheral wall, the conical surface 13 reduced in diameter toward an injection hole 14 side in fuel flow direction. The valve member 20 comprises, at the injection hole 14 side end part, the contact part 21 seated on the conical surface 13. The contact surface of the contact part 21 seated on the conical surface 13 is formed in the protruded curved shape 22 forming a part of a spherical surface. The center O of the radius r of the protruded curved shape 22 is positioned on the side of the valve member 20 apart from the center axis 100 thereof as viewed from the contact position of the protruded curved shape 22 coming into contact with the conical surface 13. The radius of the protruded curved shape 22 of the contact part 21 is not determined by a seat diameter ds and the seat angle θ of the conical surface 13, and the radius center is set larger than the spherical surface on the center axis 100. A cylindrical surface 23 is extended from the end of the protruded curved shape on the upstream side of fuel to an anti-injection hole side along the center axis 100 of the valve member 20.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：即使在阀构件的接触部分被磨损的情况下，即使阀构件的接触部分被磨损，也能够降低燃料喷射量的变化率的喷射器， 阀体的锥形表面呈突出的弯曲形状。 解决方案：阀体12在内周壁上包括在燃料流动方向上朝着喷射孔14侧直径减小的锥形表面13。 阀构件20在喷射孔14侧端部包括坐在锥形表面13上的接触部分21.坐在锥形表面13上的接触部分21的接触表面形成为突出的弯曲形状22，形成为 部分球面。 从与锥形表面13接触的突出曲线22的接触位置观察，突出弯曲形状22的半径r的中心O位于阀构件20的与其中心轴线100相对的一侧上 接触部21的突出弯曲形状22的半径不是由座面直径ds和圆锥面13的座椅角度θ决定，并且将半径中心设定为大于中心轴线100上的球面。 圆柱形表面23从燃料的上游侧的突出曲线的端部延伸到沿着阀构件20的中心轴线100的防喷射孔侧。版权所有（C）2004，JPO

公开(公告)号：JP2000303908A

公开(公告)日：2000-10-31

申请号：JP11237599

申请日：1999-04-20

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO

IPC: F02M21/02

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection valve to control a fuel injection amount with high precision even when a fuel injection amount is a small quantity. SOLUTION: In a state that a needle valve 20 seats a vale seat, an initial gap di between a fixed core 12 and a moving core 30, a distance between a spacer 14 and a stopper 23, namely a lift amount dl of a needle valve 20 are in a relation di>dl. Further, a formula of 165 μm

公开(公告)号：JPH1077892A

公开(公告)日：1998-03-24

申请号：JP23334696

申请日：1996-09-03

Applicant: DENSO CORP

Inventor： KATO MASAAKI ,  FURUHASHI TSUTOMU ,  OKAJIMA MASAHIRO

IPC: F02M37/00 ,  F02D41/22 ,  F02M47/00 ,  F02M47/02 ,  F02M55/02 ,  F02M63/00

Abstract: PROBLEM TO BE SOLVED: To provide an accumulator type fuel system for an engine to perform running of an automobile based on the will of a driver when the actuator of a fuel feed system is failed in operation. SOLUTION: Fuel pumped up by a low pressure fuel feed pump 101 is brought into a high pressure by a high pressure fuel feed pump 104, a pressure is accumulated at a common rail 105 and pressure accumulated fuel is injected from an injector 106 to each cylinder of an engine. When at least one actuator selected from the high pressure fuel feed pump 104, an electromagnetic pressure regulator 112, or a pressure sensor 107 is failed in operation, an engine is controlled through control of the high pressure fuel feed pump 104 or an injector 106. Thus, The feed of fuel by the low pressure fuel feed pump 101 is ensured and running of an automobile is practicable through control of the discharge pressure of the high pressure fuel feed pump 104 or control of opening and closing by the injector 106.

公开(公告)号：JPH1054318A

公开(公告)日：1998-02-24

申请号：JP21142996

申请日：1996-08-09

Applicant: DENSO CORP

Inventor： KATO MASAAKI ,  OKAJIMA MASAHIRO ,  FURUHASHI TSUTOMU

IPC: F02M37/00 ,  F02D41/04 ,  F02M37/20 ,  F02M47/02 ,  F02M55/02 ,  F02M59/46

Abstract: PROBLEM TO BE SOLVED: To early transfer a common-rail internal pressure to a desired reduced pressure, when an operating condition of an engine is placed in a pressure reduction required condition of the commonrail internal pressure. SOLUTION: An electromagnetic and mechanical high pressure regulator 10 is provided, which can reduce a fuel pressure of a fuel supply system supplying fuel to an injector 106 via a common-rail 105 from a high pressure fuel supply pump 104. When an operating condition of an engine is placed in a pressure reduction required condition of a common-rail internal pressure, by an input of an electric signal, the high pressure regulator 10 is placed electromagnetically in an opening condition, partly high pressure fuel in the common-rail is forcedly opened to a low pressure side, so as to early transfer the common- rail internal pressure to a desired reduced pressure.