公开(公告)号：US06783130B2

公开(公告)日：2004-08-31

申请号：US09942120

申请日：2001-08-30

Applicant: Minoru Hashida ,  Hideki Machimura ,  Hideaki Yamauchi ,  Masayoshi Kotaki ,  Takefumi Yamamura

Inventor： Minoru Hashida ,  Hideki Machimura ,  Hideaki Yamauchi ,  Masayoshi Kotaki ,  Takefumi Yamamura

IPC: F16J1532

CPC classification number: F16J15/3216 ,  F16J15/56

Abstract: A seal mechanism with improved pressure tightness is provided to eliminate a return piping to a fuel tank used for reducing pressure applied to the seal mechanism in a high pressure fuel pump. The seal mechanism includes a stress reduction mechanism for reducing the stress generated at the junction between its retaining member and flexible member.

Abstract translation: 提供了一种具有改进的压力密封性的密封机构，以消除用于降低在高压燃料泵中施加到密封机构的压力的燃料箱的返回管路。 密封机构包括用于减小在其保持构件和柔性构件之间的接合处产生的应力的应力减小机构。

公开(公告)号：US08393881B2

公开(公告)日：2013-03-12

申请号：US12428967

申请日：2009-04-23

Applicant: Satoshi Usui ,  Shingo Tamura ,  Katsumi Miyazaki ,  Sunao Takahashi ,  Masayuki Suganami ,  Minoru Hashida

Inventor： Satoshi Usui ,  Shingo Tamura ,  Katsumi Miyazaki ,  Sunao Takahashi ,  Masayuki Suganami ,  Minoru Hashida

IPC: F04B11/00

CPC classification number: F04B53/143 ,  F02M37/0041 ,  F02M55/04 ,  F02M59/442 ,  F02M59/48 ,  F04B9/042 ,  F04B11/0008 ,  F04B35/01

Abstract: A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.

Abstract translation: 用于减小压力脉动的机构包括一对金属阻尼器，其通过在两个圆周上连接两个盘形金属隔膜并在接合部分内形成气密密封空间而形成，气体密封在阻尼器的上述密封空间中， 具有一对按压构件，其在与接合部的内径侧的位置处对上述金属阻尼器的两个外表面施加按压力，并且将该一对按压构件与它们夹着的状态连接 金属阻尼器。

公开(公告)号：US08382458B2

公开(公告)日：2013-02-26

申请号：US11780940

申请日：2007-07-20

Applicant: Minoru Hashida ,  Hiroyuki Yamada ,  Junichi Shimada ,  Toru Onose ,  Satoshi Usui ,  Masami Abe ,  Tohru Himoto

Inventor： Minoru Hashida ,  Hiroyuki Yamada ,  Junichi Shimada ,  Toru Onose ,  Satoshi Usui ,  Masami Abe ,  Tohru Himoto

IPC: F04B39/00 ,  F04B53/00

CPC classification number: F02M63/0225 ,  F02M59/102 ,  F02M59/265 ,  F02M63/0001 ,  F02M2200/02 ,  F04B1/0421

Abstract: A high-pressure fuel pump is comprises of: a plunger which slidably fits to a cylinder and reciprocates for pressurizing and discharging a fuel taken in a pressurizing chamber; an inlet valve device for taking in a fuel into the pressurizing chamber; an outlet valve device for discharging the pressurized fuel from the pressurizing chamber; and a communicating pass which comprises a hole or a groove formed in the cylinder, and communicates between a pressurized fuel area and a gap between the cylinder and the plunger.

Abstract translation: 高压燃油泵包括：可滑动地装配到气缸并往复运动的柱塞，用于加压和排出在加压室中取出的燃料; 入口阀装置，用于将燃料吸入加压室; 用于从加压室排出加压燃料的出口阀装置; 以及连通通道，其包括形成在气缸中的孔或槽，并且在加压燃料区域和气缸和柱塞之间的间隙之间连通。

公开(公告)号：US20050019188A1

公开(公告)日：2005-01-27

申请号：US10896039

申请日：2004-07-22

Applicant: Satoshi Usui ,  Minoru Hashida

Inventor： Satoshi Usui ,  Minoru Hashida

IPC: F02M59/44 ,  F02M55/04 ,  F02M59/36 ,  F02M63/00 ,  F02M63/02 ,  F04B11/00

CPC classification number: F02M55/04 ,  F02M59/366 ,  F02M63/0225 ,  F02M63/028 ,  F02M2200/24 ,  F02M2200/315 ,  F04B11/0016

Abstract: To obtain a small and high performance damper mechanism which reduces pressure pulsation in low pressure-side fuel in the high pressure fuel pump in a high pressure fuel supply system or a high pressure fuel pump provided with the small and high performance damper mechanism. Two metal diaphragms are welded together over the entire circumference to obtain a metal diaphragm assembly (also referred to as “double metal diaphragm damper”). The whole or part of the portion of the metal diaphragm assembly other than the weld (for example, the portion inside the weld) is clamped by a pressing member and thereby the assembly is secured in a housing enclosure. The housing enclosure may be formed integrally with the body of a high pressure pump.

Abstract translation: 为了获得能够降低高压燃料供给系统中的高压燃料泵的低压侧燃料的压力脉动的小型，高性能阻尼机构，或具有小型高性能阻尼机构的高压燃料泵。 两个金属隔膜在整个圆周上焊接在一起，以获得金属隔膜组件（也称为“双金属隔膜阻尼器”）。 除了焊缝（例如，焊缝内的部分）之外的金属隔膜组件的部分的全部或部分被按压构件夹紧，从而将组件固定在壳体外壳中。 壳体外壳可以与高压泵的主体一体地形成。