公开(公告)号：US20180290114A1

公开(公告)日：2018-10-11

申请号：US15928653

申请日：2018-03-22

Applicant: DENSO CORPORATION

Inventor： Takayuki SUGIURA ,  Jun OSAKA ,  Naoki WATANABE

IPC: B01F5/04 ,  H01M8/04082 ,  B01F3/02 ,  B01F3/04 ,  F25B41/00

CPC classification number: B01F5/043 ,  B01F3/02 ,  B01F3/04503 ,  B01F5/0653 ,  B01F2005/0438 ,  B01F2215/0098 ,  B01F2215/0431 ,  F25B41/00 ,  F25B2341/0012 ,  H01M8/04201

Abstract: An ejector has an interior nozzle, an exterior nozzle, a suction part, a mixing part and a diffuser part. The interior nozzle and the exterior nozzle are arranged coaxially with each other. A driving fluid is supplied to the interior nozzle and/or the exterior nozzle. The suction part is arranged on an outer periphery of the exterior nozzle and sucks a suction fluid by a driving fluid jet ejected from the interior nozzle and/or the exterior nozzle. A mixing part mixes the driving fluid jet with the suction fluid, and supplies a mixture fluid. The diffuser part reduces a flow speed of the mixture fluid and ejects the mixture fluid outside. An outlet part of the interior nozzle is arranged at an upstream side of the ejector more than an outlet part of the exterior nozzle along the axial direction of the ejector.

公开(公告)号：US20150128898A1

公开(公告)日：2015-05-14

申请号：US14539340

申请日：2014-11-12

Applicant: DENSO CORPORATION

Inventor： Jun OSAKA

IPC: F02B19/08

CPC classification number: F02B19/08 ,  F02B19/10 ,  F02B19/1014 ,  F02B19/1023 ,  F02B19/1061 ,  F02B19/108 ,  F02B19/165 ,  Y02T10/125

Abstract: Auxiliary chamber type internal combustion engine has a main combustion chamber and an auxiliary chamber having an injection port through which the main combustion chamber communicates. The auxiliary chamber has a passage sectional area which is smoothly decreased toward the injection port. Further, the engine has a fuel injector injecting a fuel into the auxiliary chamber; an ignition plug igniting the fuel in the auxiliary chamber; and a swirl generating portion swirling a gas in the auxiliary chamber. The swirl generating portion swirls only the gas flowing into the auxiliary chamber from the main combustion chamber.

Abstract translation: 辅助室型内燃机具有主燃烧室和辅助室，其具有主燃烧室与其连通的喷射口。 辅助室具有朝向注射口平滑地减小的通道截面面积。 此外，发动机具有将燃料喷射到辅助室中的燃料喷射器; 火花塞点燃辅助室中的燃料; 以及涡流产生部分，使辅助室中的气体旋转。 漩涡产生部分仅使从主燃烧室流入辅助室的气体旋转。

公开(公告)号：US20160363081A1

公开(公告)日：2016-12-15

申请号：US15175435

申请日：2016-06-07

Applicant: DENSO CORPORATION

Inventor： Jun OSAKA ,  Kohei MOTOO ,  Yusuke HONGO ,  Kengo FURUKAWA ,  Wakichi KONDOH ,  Takamasa ITOU ,  Shinichiro KAWAKITA ,  Yoshiho UCHIYAMA ,  Masaki TAKEYAMA

IPC: F02D41/26 ,  F02D41/14 ,  F02M45/02

CPC classification number: F02D41/263 ,  F02D35/023 ,  F02D35/024 ,  F02D35/028 ,  F02D41/1401 ,  F02D41/1406 ,  F02D41/1446 ,  F02D41/1448 ,  F02D41/146 ,  F02D41/1463 ,  F02D41/1466 ,  F02D41/1498 ,  F02D41/38 ,  F02D41/40 ,  F02D41/401 ,  F02D41/402 ,  F02D2041/1412 ,  F02D2250/31 ,  F02M45/02 ,  F02M45/086 ,  F02M45/12 ,  F02M47/027 ,  F02M61/182 ,  F02M61/1886 ,  F02M61/1893 ,  F02M2200/46 ,  Y02T10/44

Abstract: A fuel injection device is used in an internal combustion engine having a combustion chamber partitioned by a cylinder head, a cylinder, and a piston crown surface so that at least one of the amount of NOx, Pmax, and a thermal efficiency η is maintained at a predetermined value. The fuel injection device includes a fuel injection change unit. The fuel injection change unit virtually divides the combustion chamber into N number of combustion zones where N is a natural number of 2 or more, and can change a fuel injection method according to the respective combustion zones. The fuel injection change unit divides the combustion chamber into the N number of combustion zones, thereby being capable of eliminating a difference of heat in the respective combustion zones, and precisely controlling an in-cylinder pressure P in the combustion chamber. As a result, the amount of NOx and the thermal efficiency can be optimized. Therefore, both of a reduction in the amount of NOx and the high thermal efficiency can be achieved.

Abstract translation: 燃料喷射装置用于具有由气缸盖，气缸和活塞冠表面分隔的燃烧室的内燃机，使得NOx，Pmax和热效率η中的至少一个维持在 预定值。 燃料喷射装置包括燃料喷射改变单元。 燃料喷射改变单元将燃烧室虚拟地分割为N个自然数为2以上的N个燃烧区域，并且可以根据各个燃烧区域改变燃料喷射方法。 燃料喷射改变单元将燃烧室分成N个燃烧区域，从而能够消除各燃烧区域中的热差，并且精确地控制燃烧室内的缸内压力P. 结果，可以优化NOx的量和热效率。 因此，可以实现NOx的量的减少和高的热效率。

公开(公告)号：US20160333763A1

公开(公告)日：2016-11-17

申请号：US15150911

申请日：2016-05-10

Applicant: DENSO CORPORATION

Inventor： Kengo FURUKAWA ,  Yusuke HONGO ,  Jun OSAKA ,  Yoshiho UCHIYAMA ,  Takamasa ITOU ,  Wakichi KONDOH ,  Masaki TAKEYAMA ,  Kohei MOTOO

IPC: F01N3/28 ,  F01N3/10 ,  F01N3/025 ,  F01N3/20

CPC classification number: F01N3/2066 ,  F01N2240/20 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1453 ,  Y02T10/24

Abstract: An exhaust emission control apparatus is provided with a supply device, a catalyst, and a gas pressure reduction part. The supply device supplies a reducing agent to an exhaust passage. The catalyst purifies an exhaust gas by the use of the reducing agent. The gas pressure reduction part can make a gas pressure near the supply port lower than the gas pressure on the inside of a supply device body. A NOx catalyst adsorbs nitrogen oxide contained in the exhaust. NOx adsorbed by the NOx catalyst is desorbed from the NOx catalyst when the exhaust gas is purified. An ECU estimates an adsorption amount of NOx. Then, the ECU estimates a desorption amount of NOx desorbed from the NOx catalyst on the basis of the estimated adsorption amount of NOx.

Abstract translation: 废气排放控制装置具有供给装置，催化剂和气体减压部。 供给装置向排气通道供给还原剂。 催化剂通过使用还原剂净化废气。 气体压力降低部件可以使供给口附近的气体压力低于供给装置主体的内部的气体压力。 NOx催化剂吸附废气中含有的氮氧化物。 当净化废气时，由NOx催化剂吸附的NOx被脱附到NOx催化剂上。 ECU估计NOx的吸附量。 然后，ECU基于NOx的吸附量估计从NOx催化剂脱附的NOx的解吸附量。