-
公开(公告)号：US5613476A
公开(公告)日：1997-03-25
申请号：US301429
申请日：1994-09-09
IPC分类号： B01D35/027 , F02M37/10 , F02M37/22 , F02M37/04
CPC分类号： F02M37/10 , B01D35/0273 , F02M2037/228 , Y10T137/2574 , Y10T137/86228
摘要： An in-tank type fuel pump which can easily be installed and reduces the vibration caused by the fuel pump. The fuel pumped up by a pump part passes through a filter to have foreign matter contained therein removed. Then, the fuel flows from a fuel passage, through an opening part in a cap, into a recessed part and a second fuel passage. The fuel that has flowed into the second fuel passage lifts a check valve and flows into the recessed part. Then, the fuel flows through a third fuel passage to a discharge pipe, and then is guided to the outside of the fuel tank. A ball moves within a large-diameter passage according to the fuel pressure to regulate the fuel pressure required for fuel injection. When the fuel pumping is ceased, the fuel pressure falls to 0, and therefore the ball is forced to contact a valve seat by the spring force of a compression coil spring. Then, the head part of the check valve is forced to contact a valve seat to block the fuel passage. As a result, the residual fuel pressure can be maintained downstream from the recessed part.
摘要翻译： 一种罐式燃油泵，可轻松安装，减少燃油泵引起的振动。 由泵部件抽出的燃料通过过滤器以除去其中包含的异物。 然后，燃料从燃料通路通过盖中的开口部流入凹部和第二燃料通路。 已经流入第二燃料通道的燃料提升止回阀并流入凹入部分。 然后，燃料通过第三燃料通道流到排放管，然后被引导到燃料箱的外部。 根据燃料压力，球在大直径通道内移动，以调节燃料喷射所需的燃料压力。 当燃料泵送停止时，燃料压力下降到0，因此球被压缩螺旋弹簧的弹簧力迫使阀座接触阀座。 然后，止回阀的头部被迫接触阀座以堵塞燃料通道。 结果，残留燃料压力可以保持在凹部的下游。
-
公开(公告)号：US08517708B2
公开(公告)日：2013-08-27
申请号：US12761519
申请日：2010-04-16
CPC分类号： F02M37/08 , F04D5/002 , F04D29/708
摘要： A fuel pump includes an impeller and a cover. The impeller includes a ring portion, which is annular and is placed radially outward of blades. The cover has an arcuate pump flow passage. An enlarged space is formed in a cover side slide surface of the cover. The enlarged space is communicated with the pump flow passage and has an axial gap size, which is axially measured between an axial bottom surface of the enlarged space and an axial end surface of the ring portion and is larger than that of an axial slide gap between the slide surface and the axial end surface of the ring portion.
摘要翻译： 燃料泵包括叶轮和盖。 叶轮包括环形部分，其环形并且被放置在叶片的径向外侧。 盖子有一个弓形的泵流通道。 在盖的盖侧滑动面上形成有扩大的空间。 扩大的空间与泵流动通道连通并且具有轴向间隙尺寸，轴向间隙尺寸在扩大空间的轴向底表面和环部分的轴向端表面之间轴向测量并且大于轴向间隙的轴向间隙 滑动面和环部的轴向端面。
-
公开(公告)号：US20100266436A1
公开(公告)日：2010-10-21
申请号：US12761519
申请日：2010-04-16
IPC分类号： F04C15/00
CPC分类号： F02M37/08 , F04D5/002 , F04D29/708
摘要： A fuel pump includes an impeller and a cover. The impeller includes a ring portion, which is annular and is placed radially outward of blades. The cover has an arcuate pump flow passage. An enlarged space is formed in a cover side slide surface of the cover. The enlarged space is communicated with the pump flow passage and has an axial gap size, which is axially measured between an axial bottom surface of the enlarged space and an axial end surface of the ring portion and is larger than that of an axial slide gap between the slide surface and the axial end surface of the ring portion.
摘要翻译： 燃料泵包括叶轮和盖。 叶轮包括环形部分，其环形并且被放置在叶片的径向外侧。 盖子有一个弓形的泵流通道。 在盖的盖侧滑动面上形成有扩大的空间。 扩大的空间与泵流动通道连通并且具有轴向间隙尺寸，轴向间隙尺寸在扩大空间的轴向底表面和环部分的轴向端表面之间轴向测量并且大于轴向间隙的轴向间隙 滑动面和环部的轴向端面。
-
公开(公告)号：US5498124A
公开(公告)日：1996-03-12
申请号：US190466
申请日：1994-02-02
申请人： Motoya Ito , Minoru Yasuda , Atsushige Kobayashi
发明人： Motoya Ito , Minoru Yasuda , Atsushige Kobayashi
CPC分类号： F04D5/002 , F04D29/669 , F04D5/007 , F05B2250/503
摘要： A regenerative pump includes a casing which a recessed fluid flow passage interconnecting a suction port and a discharge port is formed in an arcuate shape. An impeller is provided rotatably with respect to the casing and formed with a plurality of vane members which face the recessed fluid flow passage. A recessed damping portion is formed in a terminal end portion of the recessed fluid flow passage on a discharge port side thereof to begin at a position corresponding to the discharge port and extend along a rotating direction of the impeller. The recessed damping portion has a depth which is smaller than that of a main depth of the recessed fluid flow passage and substantially constant.
摘要翻译： 再生泵包括壳体，该壳体与吸入口和排出口相互连接的凹入流体流动通道形成为弓形。 叶轮相对于壳体可旋转地设置并且形成有面向凹入的流体流动通道的多个叶片构件。 在凹部流体流路的排出口侧的终端部形成凹陷阻尼部，开始于与排出口对应的位置，并沿着叶轮的旋转方向延伸。 凹陷阻尼部分的深度小于凹入流体流动通道的主深度的深度，并且基本上恒定。
-
公开(公告)号：US07950898B2
公开(公告)日：2011-05-31
申请号：US11798381
申请日：2007-05-14
申请人： Atsushige Kobayashi
发明人： Atsushige Kobayashi
IPC分类号： F04D5/00
CPC分类号： F04D5/002 , F04D29/406
摘要： A fuel pump includes a housing including an internally-large cylindrical portion coaxial with an internally-small cylindrical portion. A press-inserted portion is press-inserted to the internally-small cylindrical portion. An accommodating cylindrical portion is located in the internally-large cylindrical portion. An accommodating disc portion is opposed to the impeller. A cover is in contact with the accommodating cylindrical portion on the opposite side of the accommodating disc portion. The accommodating disc portion has an impeller-side surface abutted to the accommodating cylindrical portion via an accommodating corner. The outer circumferential periphery of the press-inserted portion has an axial end defining a press-inserted corner on the side of the accommodating cylindrical portion. The accommodating corner is distant from the press-inserted corner for a first distance. The outer circumferential periphery of the press-inserted portion has an axially center portion being distant from the impeller-side surface for a second distance.
摘要翻译： 燃料泵包括壳体，其包括与内部小圆柱形部分同轴的内部大圆柱形部分。 挤压插入部分被压入到内部小圆柱形部分。 容纳圆柱形部分位于内部大圆柱形部分中。 容纳盘部分与叶轮相对。 盖与容纳盘部的相对侧的容纳圆筒部接触。 容纳盘部具有通过容纳角贴靠在容纳筒部的叶轮侧面。 压插部分的外圆周具有一轴向端部，该轴向端部在容纳圆筒部分的侧面上形成一个压插角。 容纳的角部距压入插入的角部远离第一距离。 压入部的外周周缘具有与叶轮侧面远离第二距离的轴向中心部。
-
公开(公告)号：US20070269307A1
公开(公告)日：2007-11-22
申请号：US11798381
申请日：2007-05-14
申请人： Atsushige Kobayashi
发明人： Atsushige Kobayashi
IPC分类号： F04D5/00
CPC分类号： F04D5/002 , F04D29/406
摘要： A fuel pump includes a housing including an internally-large cylindrical portion coaxial with an internally-small cylindrical portion. A press-inserted portion is press-inserted to the internally-small cylindrical portion. An accommodating cylindrical portion is located in the internally-large cylindrical portion. An accommodating disc portion is opposed to the impeller. A cover is in contact with the accommodating cylindrical portion on the opposite side of the accommodating disc portion. The accommodating disc portion has an impeller-side surface abutted to the accommodating cylindrical portion via an accommodating corner. The outer circumferential periphery of the press-inserted portion has an axial end defining a press-inserted corner on the side of the accommodating cylindrical portion. The accommodating corner is distant from the press-inserted corner for a first distance. The outer circumferential periphery of the press-inserted portion has an axially center portion being distant from the impeller-side surface for a second distance.
摘要翻译： 燃料泵包括壳体，其包括与内部小圆柱形部分同轴的内部大圆柱形部分。 挤压插入部分被压入到内部小圆柱形部分。 容纳圆柱形部分位于内部大圆柱形部分中。 容纳盘部分与叶轮相对。 盖与容纳盘部的相对侧的容纳圆筒部接触。 容纳盘部具有通过容纳角贴靠在容纳筒部的叶轮侧面。 压插部分的外圆周具有一轴向端部，该轴向端部在容纳圆筒部分的侧面上形成一个压插角。 容纳的角部距压入插入的角部远离第一距离。 压入部的外周周缘具有与叶轮侧面远离第二距离的轴向中心部。
-
公开(公告)号：US06767180B2
公开(公告)日：2004-07-27
申请号：US10261633
申请日：2002-10-02
申请人： Atsushige Kobayashi , Kiyotoshi Ol
发明人： Atsushige Kobayashi , Kiyotoshi Ol
IPC分类号： F01D112
CPC分类号： F04D5/002 , F04D5/007 , F05B2250/503
摘要： A fuel pump includes an impeller and a passage member having a pump passage around the impeller, a fuel suction port and a fuel discharge port. The pump passage includes an arc-shaped fuel passage connected to the suction port and a terminal fuel passage connected to the discharge port. The discharge port is located outside the pump passage in the radial direction, and the terminal fuel passage is formed so that a portion of the terminal fuel passage is located radially more outside as the portion of the terminal fuel passage moves in the rotation direction of the impeller. The sectional area of the terminal fuel passage except spaces occupied by the impeller is approximately constant to prevent flow energy loss.
摘要翻译： 燃料泵包括叶轮和具有围绕叶轮的泵通道的通道构件，燃料吸入口和燃料排出口。 泵通道包括连接到吸入口的弧形燃料通道和连接到排出口的终端燃料通道。 排出口沿径向位于泵通道的外侧，并且端子燃料通道形成为使得端子燃料通道的一部分在末端燃料通道的一部分沿着旋转方向移动时径向更靠外侧定位 叶轮。 除了叶轮占据的空间之外，终端燃料通道的截面面积大致恒定，以防止流动能量损失。
-
公开(公告)号：US06497552B2
公开(公告)日：2002-12-24
申请号：US09835062
申请日：2001-04-16
IPC分类号： F04D500
CPC分类号： F04D29/188
摘要： An impeller has a plurality of blades at an outer periphery thereof. Each of the adjacent blades define a groove space, and a partition wall is provided in the groove space. The partition wall is disposed at a center area of the groove space in an axial direction of the impeller for partitioning the groove space from a root of the blade. The blade inclines backwardly in the rotating direction at the root side thereof, and inclines frontwardly in the rotating direction at a radial outer end side thereof. A front face is inwardly concaved from both axial ends, and warps from the root to the radial outer end of the blade to form the concave such that the concave gradually becomes small from the root to the radial outer end.
摘要翻译： 叶轮在其外周具有多个叶片。 每个相邻的叶片限定凹槽空间，并且在凹槽空间中设置有分隔壁。 分隔壁设置在叶轮的轴向方向上的槽空间的中心区域，用于将槽空间与叶片的根部分隔开。 叶片在其根部侧沿旋转方向向后倾斜，并且在其径向外端侧沿旋转方向向前倾斜。 前表面从两个轴向端部向内凹陷，并且从叶片的根部到径向外端经过弯曲以形成凹部，使得凹部从根部向径向外端逐渐变小。
-
公开(公告)号：US5765992A
公开(公告)日：1998-06-16
申请号：US781816
申请日：1997-01-09
CPC分类号： F04D5/002 , F04D5/007 , F05B2250/503
摘要： The present invention provides a regenerative pump for supplying fuel into an injection device for an internal combustion engine. The regenerative pump has a longer pressurizing passage and a slanted discharge port connected thereto and formed at an outer periphery thereof. The pressure loss in the pump is small because the fuel flows smoothly into the discharge port from the pressurizing passage, and accordingly the efficiency of the pump is high and the pump can be made small in size at the same time.
摘要翻译： 本发明提供一种用于将燃料供给到用于内燃机的注射装置的再生泵。 再生泵具有较长的加压通道和连接在其上的倾斜排出口，并在其外周形成。 由于燃料从加压通道顺畅地流入排出口，所以泵的压力损失小，因此泵的效率高，同时能够使泵的尺寸变小。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.011 秒)