公开(公告)号：US10378406B2

公开(公告)日：2019-08-13

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: F01N3/20

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.

公开(公告)号：US10786789B2

公开(公告)日：2020-09-29

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 ,  B01J7/00 ,  B01J7/02 ,  B01F5/06

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：US09803536B2

公开(公告)日：2017-10-31

申请号：US14539340

申请日：2014-11-12

Applicant: DENSO CORPORATION

Inventor： Jun Osaka

IPC: F02B19/08 ,  F02B19/16 ,  F02B19/10

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.