公开(公告)号：US20180163682A1

公开(公告)日：2018-06-14

申请号：US15580322

申请日：2016-05-10

Applicant: DENSO CORPORATION

Inventor： Tatsuro KOGA ,  Noriya MATSUMOTO ,  Seiji TANIZAWA

IPC: F02M59/46 ,  F02M69/54 ,  F02M63/00 ,  F16K17/08 ,  F02M37/06

CPC classification number: F02M59/462 ,  F02M37/06 ,  F02M55/025 ,  F02M59/46 ,  F02M63/005 ,  F02M69/54 ,  F02M2200/30 ,  F16K17/085

Abstract: In a high-pressure pump, a relief valve main body has a rod shape. A relief valve seat portion is integrated with an end of a relief valve main body so as to be capable of contacting a relief valve seat. The relief valve main body is inserted into a guide hole portion of a support portion. The guide hole portion slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve main body in the axial direction. A fuel guide portion is provided at an end portion of the relief valve main body facing the pressurizing chamber and can guide a flow of the fuel in a direction radially outward of the relief valve main body on the way from the pressurizing chamber toward the valve seat portion.

公开(公告)号：US20140314605A1

公开(公告)日：2014-10-23

申请号：US14254485

申请日：2014-04-16

Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC.

Inventor： Tatsuro KOGA ,  Ichiki TERASHIMA ,  Toshihide ONO ,  Seiji TANIZAWA ,  Takehiko KATO ,  Masatoshi KUROYANAGI ,  Shinobu OIKAWA ,  Noriya MATSUMOTO

IPC: F02M37/00 ,  F04B53/10

CPC classification number: F02M37/0023 ,  F04B1/0452 ,  F04B53/10

Abstract: A common seat portion includes discharge passages that communicate between a first valve chamber and a second valve chamber when a discharge valve member is lifted away from the common seat portion. The common seat portion also includes a relief passage that extends substantially parallel to the discharge passages and communicates between the first valve chamber and the second valve chamber when a relief valve member is lifted away from the common seat portion.

Abstract translation: 公共座部分包括当排放阀构件从公共座部分抬起时在第一阀室和第二阀室之间连通的排放通道。 普通座椅部分还包括一个卸载通道，当释放阀构件被从公共座部分提起时，释放通道基本上平行于排出通道延伸并连接在第一阀室和第二阀室之间。

公开(公告)号：US20200088147A1

公开(公告)日：2020-03-19

申请号：US16694272

申请日：2019-11-25

Applicant: DENSO CORPORATION

Inventor： Tatsuro KOGA ,  Noriya MATSUMOTO

IPC: F02M59/46 ,  F02M69/54 ,  F16K17/04 ,  F02M59/02

Abstract: In a high-pressure pump, a relief valve seating surrounds an opening of a relief valve passage of a valve seat main body in a first space, A relief valve member includes a relief valve main body and a relief valve seat portion. The relief valve main body has a rod shape. The relief valve seat portion is integrated with an end of the relief valve main body so as to be capable of contacting the relief valve seat. The relief valve urging member urges the relief valve member toward the relief valve seat. A support portion includes a support main body that slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve member in the axial direction.

公开(公告)号：US20180135580A1

公开(公告)日：2018-05-17

申请号：US15580332

申请日：2016-05-10

Applicant: DENSO CORPORATION

Inventor： Tatsuro KOGA ,  Noriya MATSUMOTO

IPC: F02M59/46 ,  F02M59/02 ,  F16K17/04

CPC classification number: F02M59/46 ,  F02M59/025 ,  F02M59/102 ,  F02M59/442 ,  F02M69/54 ,  F16K17/04

Abstract: In a high-pressure pump, a relief valve seat surrounds an opening of a relief valve passage of a valve seat main body in a first space. A relief valve member includes a relief valve main body and a relief valve seat portion. The relief valve main body has a rod shape. The relief valve seat portion is integrated with an end of the relief valve main body so as to be capable of contacting the relief valve seat. The relief valve member is provided in the first space so as to be reciprocable in an axial direction. A relief valve urging member urges the relief valve member toward the relief valve seat. A support portion includes a support main body that slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve member in the axial direction.

公开(公告)号：US20150017040A1

公开(公告)日：2015-01-15

申请号：US14322067

申请日：2014-07-02

Applicant: DENSO CORPORATION

Inventor： Osamu HISHINUMA ,  Noriya MATSUMOTO ,  Hiroatsu YAMADA

IPC: F04B11/00 ,  F02M59/02

CPC classification number: F02M59/02 ,  F02M55/04 ,  F02M59/367 ,  F02M59/44 ,  F04B11/0033

Abstract: A pulsation dumper configured to reduce a fuel pressure pulsation of fuel flowing in a fuel chamber includes a sealed space in which gas having a predetermined pressure is encapsulated between a first diaphragm and a second diaphragm configured to be resiliently deformable by a fuel pressure pulsation in the fuel chamber. A first resilient member provided in the sealed space abuts against an inner wall of the first diaphragm, and a second resilient member abuts against an inner wall of a second diaphragm. A supporting member provided between the first resilient member and the second resilient member supports an outer peripheral portion of the first resilient member and an outer peripheral portion of the second resilient member. A resonance of first and second diaphragms is restrained by the first and second resilient members. The first and second resilient members do not impair deformation of center portions of the first and second diaphragms.

Abstract translation: 构造成减少在燃料室中流动的燃料的燃料压力脉动的脉动转储器包括密封空间，其中具有预定压力的气体被封装在第一膜片和第二膜片之间，该第一膜片和第二膜片被构造成可通过燃料压力脉动弹性变形 燃料舱。 设置在密封空间中的第一弹性构件邻接第一隔膜的内壁，第二弹性构件抵靠第二隔膜的内壁。 设置在第一弹性构件和第二弹性构件之间的支撑构件支撑第一弹性构件的外周部分和第二弹性构件的外周部分。 第一和第二隔膜的共振被第一和第二弹性构件约束。 第一和第二弹性构件不会损害第一和第二隔膜的中心部分的变形。