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公开(公告)号:US20080056914A1
公开(公告)日:2008-03-06
申请号:US11835544
申请日:2007-08-08
申请人: Satoshi USUI , Hiroyuki Yamada , Kenichiro Tokuo , Minoru Hashida , Takefumi Yamamura , Tohru Himoto , Sunao Takahashi
发明人: Satoshi USUI , Hiroyuki Yamada , Kenichiro Tokuo , Minoru Hashida , Takefumi Yamamura , Tohru Himoto , Sunao Takahashi
IPC分类号: F04B49/24
CPC分类号: F02M63/0245 , F02M55/04 , F02M59/366 , F02M59/367 , F02M59/462 , F02M63/005 , F02M63/0054 , F02M63/0056
摘要: A high-pressure fuel supply pump having a fuel relief path for connecting a high-pressure fuel path downstream of a discharge valve for discharging fuel pressurized in a pressurizing chamber to a low-pressure fuel path upstream of an inlet valve or the pressurizing chamber, a check valve being provided in the fuel relief path as a relief valve for allowing the fuel to flow only to the low-pressure fuel path or the pressurizing chamber, wherein an energy attenuating mechanism is provided in a discharge path on a side facing the discharge valve upstream of the relief valve in the fuel relief path so as to prevent an instantaneous pressure rise caused in the discharge path from propagating to the relief valve.
摘要翻译: 一种高压燃料供给泵,其具有燃料排出路径,用于将用于将在加压室中加压的燃料排放到入口阀或加压室上游的低压燃料路径的排出阀下游的高压燃料路径连接, 在所述燃料排出路径中设置有止回阀,作为使所述燃料仅流向所述低压燃料路径或所述加压室的安全阀,在所述排气路径的与所述排出口相对的一侧的排出路径中设置有能量衰减机构 在燃料排放路径中的安全阀上游的阀,以防止在排放路径中引起的瞬时压力升高传播到安全阀。
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公开(公告)号:US20080019853A1
公开(公告)日:2008-01-24
申请号:US11780940
申请日:2007-07-20
申请人: Minoru HASHIDA , Hiroyuki YAMADA , Junichi SHIMADA , Toru ONOSE , Satoshi USUI , Masami ABE , Tohru HIMOTO
发明人: Minoru HASHIDA , Hiroyuki YAMADA , Junichi SHIMADA , Toru ONOSE , Satoshi USUI , Masami ABE , Tohru HIMOTO
IPC分类号: F04B39/10
CPC分类号: F02M63/0225 , F02M59/102 , F02M59/265 , F02M63/0001 , F02M2200/02 , F04B1/0421
摘要: 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.
摘要翻译: 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。
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公开(公告)号:US08382458B2
公开(公告)日:2013-02-26
申请号:US11780940
申请日:2007-07-20
申请人: Minoru Hashida , Hiroyuki Yamada , Junichi Shimada , Toru Onose , Satoshi Usui , Masami Abe , Tohru Himoto
发明人: Minoru Hashida , Hiroyuki Yamada , Junichi Shimada , Toru Onose , Satoshi Usui , Masami Abe , Tohru Himoto
CPC分类号: F02M63/0225 , F02M59/102 , F02M59/265 , F02M63/0001 , F02M2200/02 , F04B1/0421
摘要: 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.
摘要翻译: 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。
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