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。