公开(公告)号：US20190017504A1

公开(公告)日：2019-01-17

申请号：US16069607

申请日：2017-01-13

Applicant: DENSO CORPORATION ,  SOKEN, INC.

Inventor： Masashi INOUE ,  Yasuhiro TAKEUCHI ,  Haruo KAMIYA ,  Yusuke HONGO ,  Masahiro OKAJIMA

IPC: F04C15/00 ,  F02M37/08 ,  F04C2/16

Abstract: A screw pump includes a male screw, a female screw, a motor, a journal, a bearing member, and a case. The motor includes an output shaft, which transmits a torque to the male screw, and the motor is operable to drive the male screw to rotate the same through the output shaft. The journal is rotatably placed between the output shaft of the motor and the male screw. The bearing member rotatably supports the journal. The case includes a screw receiving hole that receives the male screw and the female screw. The journal and the male screw are coaxially and non-detachably integrated together. The output shaft and the journal are fitted together by clearance fit that enables transmission of the torque between the output shaft and the journal.

公开(公告)号：US20180216614A1

公开(公告)日：2018-08-02

申请号：US15749812

申请日：2016-06-29

Applicant: DENSO CORPORATION

Inventor： Yusuke HONGO ,  Masahiro OKAJIMA ,  Masashi INOUE ,  Yasuhiro TAKEUCHI ,  Haruo KAMIYA

IPC: F04C2/16 ,  F16C17/10 ,  F16C17/20

CPC classification number: F04C2/16 ,  F04C11/008 ,  F04C13/008 ,  F04C15/0042 ,  F04C2210/203 ,  F04C2240/50 ,  F16C17/10 ,  F16C17/20

Abstract: A screw pump pumps a fluid from an inlet port to a discharge port by rotating one drive screw and at least one driven screw which mesh with each other and includes the drive screw being rotatable about a drive rotation shaft, the driven screw to be driven by the drive screw and being rotatable about a driven rotation shaft, a drive journal provided coaxially with the drive screw and to rotate integrally with the drive screw, a driven journal provided coaxially with the driven screw and to rotate integrally with the driven screw while making contact with the drive journal along a contact line between the drive rotation shaft and the driven rotation shaft, a case including a cylinder that receives the drive screw and the driven screw, and a bearing member to rotatably support the drive journal and the driven journal.

公开(公告)号：US20180038330A1

公开(公告)日：2018-02-08

申请号：US15709046

申请日：2017-09-19

Applicant: DENSO CORPORATION

Inventor： Tomoki FUJINO ,  Takashi FURUKAWA ,  Yusuke HONGO

IPC: F02M51/06 ,  F02M61/08 ,  F02M61/16 ,  F02M21/02 ,  F02M61/18

CPC classification number: F02M51/0625 ,  F02M21/0212 ,  F02M21/0254 ,  F02M21/0266 ,  F02M21/0269 ,  F02M51/0664 ,  F02M51/0682 ,  F02M51/0685 ,  F02M61/08 ,  F02M61/166 ,  F02M61/1893 ,  F02M2200/9015 ,  Y02T10/32 ,  Y10T29/49002

Abstract: A fuel injector 100 includes a nozzle member 60 having a fuel passage 60a leading to an injection port 60b; a valve main body 51 adapted to reciprocate for opening and closing the fuel passage 60a; an elastic portion 56 elastically deformable in closing the fuel passage 60a by movement of the valve main body 51 in a closing direction, the elastic member being attached to one of the nozzle member 60 and the valve main body 51 and adapted to be abutted against the other of the nozzle member 60 and the valve main body 51 to close the fuel passage 60a by moving the valve main body 51 in the closing direction; and a stopper 70 adapted to restrict movement of the valve main body 51 in the closing direction by being abutted against the valve main body 51, the stopper 70 being formed of material different from the nozzle member 60.

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。