公开(公告)号：US20140348676A1

公开(公告)日：2014-11-27

申请号：US14284823

申请日：2014-05-22

Applicant: Denso Corporation

Inventor： Takehiko KATO ,  Shinichiro Koshimoto ,  Osamu Hishinuma ,  Yutaka Miyamoto

IPC: F04B7/00

CPC classification number: F04B53/1085 ,  F02M59/025 ,  F02M59/466 ,  F02M63/0075 ,  F02M63/0077 ,  F02M63/0078 ,  F04B1/0452 ,  F04B19/04 ,  F04B19/22 ,  F04B53/1087 ,  F04B53/14 ,  F04B53/16 ,  F16K1/32

Abstract: A valve seat member which partitions between a supply passage and a pressurizing chamber, includes an inner flow path, which communicates between the supply passage and the pressurizing chamber, and an outer flow path, which is placed on a radially outer side of the inner flow path. An inner valve is seatable against inner valve seat formed in an opening of the inner flow path. An outer valve is contactable with an end surface of the inner valve, which is opposite from the inner valve seat. The outer valve is seatable against an outer valve seat, which is formed in an opening of the outer flow path.

Abstract translation: 在供给通道和加压室之间分隔开的阀座构件包括在供给通道和加压室之间连通的内部流路，以及设置在内部流的径向外侧的外部流路 路径。 内部阀可抵靠形成在内部流路的开口中的内部阀座。 外阀可与内阀的与内阀座相反的端面接触。 外部阀可抵靠外部阀座，该外部阀座形成在外部流动路径的开口中。

公开(公告)号：US20170101987A1

公开(公告)日：2017-04-13

申请号：US15386177

申请日：2016-12-21

Applicant: DENSO CORPORATION

Inventor： Takehiko KATO ,  Shinichiro KOSHIMOTO ,  Osamu HISHINUMA ,  Yutaka MIYAMOTO

IPC: F04B53/10 ,  F04B53/16 ,  F02M59/02 ,  F04B53/14 ,  F04B19/22 ,  F04B19/04

CPC classification number: F04B53/1085 ,  F02M59/025 ,  F02M59/466 ,  F02M63/0075 ,  F02M63/0077 ,  F02M63/0078 ,  F04B1/0452 ,  F04B19/04 ,  F04B19/22 ,  F04B53/1087 ,  F04B53/14 ,  F04B53/16 ,  F16K1/32

Abstract: A valve seat member, which partitions between a supply passage and a pressurizing chamber, includes an inner flow path, which communicates between the supply passage and the pressurizing chamber, and an outer flow path, which is placed on a radially outer side of the inner flow path. An inner valve is seatable against an inner valve seat formed in an opening of the inner flow path. An outer valve is contactable with an end surface of the inner valve, which is opposite from the inner valve seat. The outer valve is seatable against an outer valve seat, which is formed in an opening of the outer flow path.

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：US20140010687A1

公开(公告)日：2014-01-09

申请号：US13933450

申请日：2013-07-02

Applicant: Nippon Soken, Inc. ,  Denso Corporation

Inventor： Shinobu OIKAWA ,  Hirokuni TOMITA ,  Takehiko KATO

IPC: F04B7/02

CPC classification number: F04B7/0076 ,  F04B1/0452 ,  F04B7/02 ,  F04B19/22 ,  F04B53/1082 ,  F16K31/0693

Abstract: Between a movable core chamber and a fuel supply passage, a needle guide slidably supports a needle fixed to a movable core. The needle guide has a communication hole which fluidly connects the movable core chamber and the fuel supply passage. An opening sectional area of the communication hole is defined in such a manner that a fuel discharged amount decreases as an energization start time of a coil is delayed. In a suction stroke, it is restricted that the movable core and the needle bounce toward the fixed core after the needle biases a suction valve toward a stopper by means of a biasing force of a second spring. A relationship between the energization start time of the coil and the fuel discharged amount is properly maintained, so that the fuel discharged amount of the high-pressure pump can be controlled correctly.

Abstract translation: 在可动核心室和燃料供给通道之间，针引导件可滑动地支撑固定到可动芯的针。 针引导件具有将可动核心室和燃料供给通路流体连接的连通孔。 连通孔的开口截面积被限定为随着线圈的通电开始时间延迟，燃料排出量减少。 在吸入行程中，限制了针在针上通过第二弹簧的作用力朝向止动件偏压吸入阀之后，可动芯和针向固定芯反弹。 适当地保持线圈的通电开始时间与燃料排出量之间的关系，从而能够正确地控制高压泵的燃料排出量。

公开(公告)号：US20160069333A1

公开(公告)日：2016-03-10

申请号：US14943108

申请日：2015-11-17

Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC.

Inventor： Shinobu OIKAWA ,  Hirokuni TOMITA ,  Takehiko KATO

IPC: F04B7/00 ,  F04B19/22 ,  F04B53/10

CPC classification number: F04B7/0076 ,  F04B1/0452 ,  F04B7/02 ,  F04B19/22 ,  F04B53/1082 ,  F16K31/0693

Abstract: Between a movable core chamber and a fuel supply passage, a needle guide slidably supports a needle fixed to a movable core. The needle guide has a communication hole which fluidly connects the movable core chamber and the fuel supply passage. An opening sectional area of the communication hole is defined in such a manner that a fuel discharged amount decreases as an energization start time of a coil is delayed. In a suction stroke, it is restricted that the movable core and the needle bounce toward the fixed core after the needle biases a suction valve toward a stopper by means of a biasing force of a second spring. A relationship between the energization start time of the coil and the fuel discharged amount is properly maintained, so that the fuel discharged amount of the high-pressure pump can be controlled correctly.

Abstract translation: 在可动核心室和燃料供给通道之间，针引导件可滑动地支撑固定到可动芯的针。 针引导件具有将可动核心室和燃料供给通路流体连接的连通孔。 连通孔的开口截面积被限定为随着线圈的通电开始时间延迟，燃料排出量减少。 在吸入行程中，限制了针在针上通过第二弹簧的作用力朝向止动件偏压吸入阀之后，可动芯和针向固定芯反弹。 适当地保持线圈的通电开始时间与燃料排出量之间的关系，从而能够正确地控制高压泵的燃料排出量。