公开(公告)号：JP2006132496A

公开(公告)日：2006-05-25

申请号：JP2004325019

申请日：2004-11-09

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/08 ,  B01D53/94 ,  F01N3/10 ,  F01N3/28

Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive and simple NOx purifying device capable of effectively purifying NOx in an internal combustion engine of a diesel engine, a lean-burn gasoline engine or the like which discharges oxygen-excessive exhaust gas. SOLUTION: The nitrogen oxide purifying device 1 is equipped with a nitrogen oxide purifying catalyst 20, a reducing agent adding means 30 for adding a reducing agent B for reducing nitrogen oxide onto the upstream side of the nitrogen oxide purifying catalyst 20, and a reducing agent generation means 40 for separating only a low carbon content from a light oil A to take the low carbon content as the reducing agent B. The reducing agent generation means 40 is equipped with a bypass passage 42 of exhaust gas E which communicates to an exhaust pipe 10, a control valve 44 for controlling inflow of exhaust gas e to the bypass passage 42, and a reducing agent generator 46 which receives fuel A from a fuel tank 50 for engine combustion and separates only the low carbon content in fuel by heat of the exhaust gas e so as to be supplied to a reducing agent tank 32 for storing the reducing agent B. The reducing agent generator 46 is arranged in the bypass passage 42. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种廉价且简单的NOx净化装置，其能够有效地净化排出过量废气的柴油发动机，稀燃汽油发动机等的内燃机中的NOx。 解决方案：氮氧化物净化装置1装备有氮氧化物净化催化剂20，还原剂添加装置30，用于将氮氧化物还原剂B添加到氮氧化物净化催化剂20的上游侧，以及 还原剂生成装置40，用于从轻油A中分离低碳含量以将低碳含量作为还原剂B.还原剂产生装置40配备有排气E的旁通通道42，其与 排气管10，用于控制排气e流入旁通通道42的控制阀44以及从用于发动机燃烧的燃料箱50接收燃料A的还原剂发生器46，仅将燃料中的低碳含量分开 废气e的热量供给至还原剂B的还原剂罐32中。还原剂发生器46配置在旁路通路42中。（C）2006，JPO＆ NCIPI

公开(公告)号：JP2006070148A

公开(公告)日：2006-03-16

申请号：JP2004254718

申请日：2004-09-01

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SO SHINSHU ,  NOMURA YURIO ,  MIZOBUCHI TAKASHI ,  OKAJIMA MASAHIRO

IPC: C10G61/02 ,  C10G31/09 ,  C10G35/085 ,  F01N5/02 ,  F02M27/02

CPC classification number: Y02T10/126 ,  Y02T10/16

Abstract: PROBLEM TO BE SOLVED: To provide a refueling device which can inhibit defects such as knocking without forcing a user to bear a large economic burden.
SOLUTION: A refueling device composes a part of a refueling pathway extending from a fuel tank, which stores gasoline loaded on an automobile, to an internal combustion engine. The refueling device is equipped with a separating means and a reforming means connected to the fuel tank and the separating means, respectively, wherein the separating means separates a low-octane-number component having a low octane number from the gasoline and supplies components other than the low-octane-number component to the internal combustion engine, and the reforming means produces a high-octane-number component by increasing the octane number of the low-octane-number component separated by the separating means and supplies the high-octane-number component to the internal combustion engine.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种加油装置，其能够抑制敲击等缺陷，而不会强迫使用者承受较大的经济负担。 解决方案：加油装置构成从燃料箱延伸的一部分加油路径，燃料箱将装载在汽车上的汽油储存在内燃机中。 加油装置具有分别装置和连接到燃料箱和分离装置的重整装置，其中分离装置从汽油中分离出具有低辛烷值的低辛烷值成分，并且供给除了 内燃机的低辛烷值成分，重整装置通过增加由分离装置分离的低辛烷值成分的辛烷值，产生高辛烷值成分， 数字组件到内燃机。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006057622A

公开(公告)日：2006-03-02

申请号：JP2004291107

申请日：2004-10-04

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 ,  SEKIJIMA HITOSHI ,  MIYOSHI SHINJI ,  GOTO MORIYASU ,  TOMITA HIROKUNI

IPC: F02M59/46 ,  F02M61/10

Abstract: PROBLEM TO BE SOLVED: To provide a constitution capable of preventing fuel leakage from a first nozzle hole by securely sealing upstream and downstream sides of the first nozzle hole at the time of closing of needles, in a two-needle type fuel injection nozzle in which the outer needle is lifted prior to the inner needle to open the first nozzle hole and then the inner needle is lifted to open a second nozzle hole.
SOLUTION: The fuel injection nozzle is provided with the outer needle 2 involved in injection start and injection completion from the first nozzle hole 6 and the inner needle 3 involved in injection start and injection completion from the second nozzle hole 7. A small diameter opening part side of a belleville spring 4 is fixed to the lower end face of the outer needle 2 around the perimeter, and the belleville spring 4 is held in the state that it is pressed between the lower end face of the outer needle 2 and a second seat face 10, when the outer needle 2 is closed. At this time, since the periphery of the large diameter opening part of the belleville spring 4 is closely contacted with the second seat face 10, the belleville spring 4 liquid-tightly blocks off a space between a clearance C secured between the outer needle 2 and the inner needle 3 and the first nozzle hole 6. This prevents fuel flowed out from the clearance C from being flowed out to outside of the belleville spring 4. Therefore, fuel leakage from the first nozzle hole 6 can be prevented.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够通过在关闭针时可靠地密封第一喷嘴孔的上游侧和下游侧来防止燃料从第一喷嘴孔泄漏的结构，在双针型燃料喷射 喷嘴，其中外针在内针之前被提起以打开第一喷嘴孔，然后提升内针以打开第二喷嘴孔。 解决方案：燃料喷射喷嘴从第二喷嘴孔7的第一喷嘴孔6和涉及注射开始和喷射完成的内针3设置有涉及注射开始和注射完成的外针2。 圆锥形弹簧4的直径开口部分侧围绕外周固定到外针2的下端面，并且保持壳体弹簧4处于外针2的下端面和 第二座面10，当外针2关闭时。 此时，由于贝氏弹簧4的大直径开口部的周缘与第二座面10紧密接触，所以，贝氏弹簧4液密地堵住固定在外针2和 内针3和第一喷嘴孔6.这防止从间隙C流出的燃料流出到贝氏弹簧4的外部。因此，可以防止从第一喷嘴孔6泄漏燃料。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003328891A

公开(公告)日：2003-11-19

申请号：JP2002139750

申请日：2002-05-15

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F02M51/06 ,  F02M61/12

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection device with excellent valve opening responsivity for reducing a valve opening bounce of a valve member.
SOLUTION: This fuel injection device comprises a cylindrical valve body 11; a movable core 14 reciprocatably accommodated in the valve body 11 integrally with the valve member; and a stationary core 12, which is unmovably accommodated in the valve body 11 and whose downstream end face 13a is opposed to an upstream end face 15a of the movable core 14. An indentation part 52 is formed on an outermost peripheral edge of the upstream end face 15a of the movable core 14. An enlarging part 62 for making an interval D of a side gap 70 on the outer periphery of the downstream end 16 of the movable core 14 larger than an interval D' on the outer periphery of the upstream end 15 is installed on an outer peripheral wall of the movable core 14 forming the annular-sectioned side gap 70 between it and the inner peripheral wall of the valve body 11.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种具有优异的开阀响应性的燃料喷射装置，用于减少阀构件的阀开启反弹。 解决方案：该燃料喷射装置包括圆柱形阀体11; 与阀体一体地可往复运动地容纳在阀体11内的可动芯体14; 以及固定芯12，其不可移动地容纳在阀体11中，并且其下游端面13a与可动铁芯14的上游端面15a相对。压痕部52形成在上游端的最外周缘 用于在可动铁芯14的下游端16的外周上形成比在上游端的外周上的间隔D'大的侧隙70的间隔D的放大部62 15安装在可动铁芯14的外周壁上，形成在阀体11的内周壁之间的环形侧面间隙70.版权所有（C）2004，JPO

公开(公告)号：JP2002309991A

公开(公告)日：2002-10-23

申请号：JP2001111071

申请日：2001-04-10

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO ,  OTA NOBUO

IPC: F02M51/00 ,  F02D41/20 ,  F02D41/34 ,  F02D41/40 ,  F02M51/06 ,  F16K31/06

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection device suppressing operation sound and seat wear in a fuel injection valve using two electromagnetic coils in the opening/closing operation of a valve element. SOLUTION: This fuel injection device is provided with the fuel injection valve 10 having the valve element 21 seated on and separated from a valve seat around a fuel injection hole, a movable core 22, a first fixed core 31, a second fixed core 41, a first electromagnetic coil 32 and a second electromagnetic coil 42; and an electronic control unit 80 for controlling the fuel injection valve by adjusting the power quantity to the first electromagnetic coil and second electromagnetic coil. The electronic control unit reduces the power quantity to the second electromagnetic coil before the seating of the valve element on the valve seat after the completion of power application to the first electromagnetic coil. As a result, by reducing the power quantity to the second electromagnetic coil, the operation sound and seat wear generated when the valve element is seated can be suppressed without lowering valve closing responsiveness.

公开(公告)号：JPH11270725A

公开(公告)日：1999-10-05

申请号：JP7183998

申请日：1998-03-20

Applicant: DENSO CORP

Inventor： FURUHASHI TSUTOMU ,  OKAJIMA MASAHIRO ,  SAKAI TATSUO

IPC: F16K17/04

Abstract: PROBLEM TO BE SOLVED: To provide a pressure regulating valve capable of providing a stable pressure regulating characteristic and reducing a pressure fluctuation and noise. SOLUTION: This pressure regulating valve 7 is constituted of a housing 14, valve body 15, valve member 20 and a compression coil spring 30. A pressure control part 21 is provided between an abutting part 20a of the valve member 20 and a valve seat 15a. A tapered angle in a tapered surface of the pressure control part 21 is set smaller than a tapered angle in a tapered surface of the abutting part 20a. When the abutting part 20a of the valve member 20 is separated from the valve seat 15a, a variation rate is smoothed in an opening area between the pressure control part 21 and the valve seat 15a, so that a stable pressure regulating characteristic can be obtained, and a variation rate in a flow amount of fuel can be mitigated. Accordingly, a pressure fluctuation in a low pressure fuel passage is reduced, and a noise generated from a fuel supply device can be reduced. By providing the abutting part 20a and the pressure control part 21 in a separate location of the valve member 20, a freedom degree of design of the valve member 20 can be enhanced.

公开(公告)号：JPH10311267A

公开(公告)日：1998-11-24

申请号：JP12113897

申请日：1997-05-12

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO ,  FURUHASHI TSUTOMU

IPC: F02M37/00 ,  F02M55/00

Abstract: PROBLEM TO BE SOLVED: To provide a fuel pressure pulsation damping device to damp both pressure pulsation due to a water hammer and pressure pulsation due to a flow rate. SOLUTION: By disposing a fuel pressure pulsation damping device body 10 between a low pressure piping 30 on the high pressure supply pump side and a low pressure piping 20 on the fuel pump side, both pressure pulsation due to a water hammer propagated from a high pressure supply pump to the fuel pump side and pressure pulsation due to a flow rate sucked from a low pressure piping side to a high pressure supply pump and forcibly returned from a high pressure supply pump to the low pressure piping side are damped. Thus, durability of a low pressure piping 20 on the fuel pump side, a fuel pump, and a member at the internal part of a fuel pump and a fuel filter is ensured. Further, since the fuel pressure pulsation damping device body 10 simply consists of a housing 100, a piston 1, a spring 2, and stoppers 3 and 4, high durability is ensured compared with a pulsation damper having a diaphragm made of rubber.

公开(公告)号：JPH10159668A

公开(公告)日：1998-06-16

申请号：JP31987096

申请日：1996-11-29

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO

IPC: F02M37/00 ,  F02M37/20 ,  F02M59/10

Abstract: PROBLEM TO BE SOLVED: To provide a high pressure supply pump which can control the discharge amount of the fuel at a high accuracy by maintaining the pressure of the sucked fuel at a constant value, and can simplify the fuel feeding system. SOLUTION: The fuel fed from a low pressure pump is sucked from a suction passage 12a to a fuel pressure chamber 16, and the fuel in the fuel pressure chamber 16 is pressurized by the reciprocating movement of a plunger 43, and it is delivered from a delivery valve 30. In a pressure regulating valve 50, a valve member 51 is separated form a valve seat 53, when the fuel pressure in a fuel passage 54 communicating with the suction passage 12a is made at a specific pressure or higher, so as to regulate the pressure of the sucked fuel at a specified pressure. A vapor generated in a high pressure supply pump 10 in a high temperature restarting time of the engine is exhausted to the outside of the pump from the pressure regulating valve 50.

公开(公告)号：JPH1054319A

公开(公告)日：1998-02-24

申请号：JP21143096

申请日：1996-08-09

Applicant: DENSO CORP

Inventor： KATO MASAAKI ,  OKAJIMA MASAHIRO ,  FURUHASHI TSUTOMU

IPC: F02M37/00 ,  F02D41/06 ,  F02M37/08 ,  F02M37/20 ,  F02M55/00 ,  F02M55/02

Abstract: PROBLEM TO BE SOLVED: To provide an accumulator fuel supply device formed so as to ensure a stable operating condition from the beginning when an engine is restarted at a high temperature. SOLUTION: When an estimation signal of high temperature restart is input before starting an engine, a low pressure fuel supply pump 101 is driven, also an electromagnetic pressure regulator 112 is forcedly valve opened. In this way, before starting the engine, air or fuel vapor in a high pressure fuel route is started to be removed, air bleed operation is executed. Accordingly, when the engine is started, air or fuel vapor in a common rail 105 is removed, since a fuel pressure in the common rail 105 is sufficiently at a high pressure, by proper timing in accordance with valve opening/closing operation of an injector 106, a proper amount of fuel can be injected by atomization.

公开(公告)号：JP2014227878A

公开(公告)日：2014-12-08

申请号：JP2013106949

申请日：2013-05-21

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

Inventor： MATSUYAMA AKIHIRO ,  MOTOE YUSUKE ,  NISHIJIMA YOSHIAKI ,  OKAJIMA MASAHIRO ,  SAITO KIMITAKA

IPC: F02B75/28 ,  F02B19/00 ,  F02B19/12

CPC classification number: Y02T10/125

Abstract: 【課題】熱効率の向上が可能な内燃機関を提供する。【解決手段】気体燃料用エンジン1は、気体燃料を含む混合気が導入される主燃焼室11を形成する第1ピストン41及び第2ピストン51を備える。第1ピストン41と第2ピストン51とを連結する位相制御部60は、主燃焼室11の混合気が点火プラグ15により点火された後、第1ピストン41が上死点の到達する時刻から第2ピストン51が上死点に到達する時刻までの間、主燃焼室11の体積が一定となるよう第1ピストン41及び第2ピストン51の位相を制御する。これにより、主燃焼室11の混合気が点火された後の主燃焼室11の圧力は、2つのピストンが同時に上死点に到達する気体燃料用エンジンの主燃焼室の圧力に比べ高くなる。したがって、気体燃料用エンジン1が出力する仕事は比較的大きくなり、熱効率を向上することができる。【選択図】図1

Abstract translation: 要解决的问题：提供一种能够提高热效率的内燃机。解决方案：用于气体燃料的发动机1包括形成主燃烧室11的第一活塞41和第二活塞51，其中含有气体燃料的空气 - 燃料混合物 被介绍。 用于联接第一活塞41和第二活塞51的相位控制部分60控制第一活塞41和第二活塞51的相位，从而当活塞41到达上死点时，主燃烧室11的容积变得恒定 直到主燃烧室11中的空气燃料混合物被火花塞15点燃之后，第二活塞51到达上止点。因此，主燃烧室11中的主燃烧混合后的压力 燃气室11被点燃变得高于其中两个活塞同时到达上死点的燃气发动机的主燃烧室中的压力。 因此，用于气体燃料的发动机1输出的劳动变得相对较大，从而可以提高热效率。