公开(公告)号：US4478550A

公开(公告)日：1984-10-23

申请号：US370350

申请日：1982-04-21

申请人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F04D5/00

CPC分类号： F04D5/002 ,  F04D5/007 ,  F05B2250/503

摘要： A pump apparatus has a regenerative pump and a motor for driving the regenerative pump. A substantially annular flow passage is formed in the pump housing of the regenerative pump and communicated with a discharge port and a suction port. An impeller is rotatably housed in the pump housing. A plurality of radial vane grooves are formed circumferentially spaced in the outer peripheral portion of each surface of the impeller. A recess is formed in the portion of one of side surfaces of the flow passage aligned axially with the discharge port formed in the other side face of the flow passage.

摘要翻译： 泵装置具有再生泵和用于驱动再生泵的马达。 在再生泵的泵壳体内形成大致环状的流路，与排出口和吸入口连通。 叶轮可旋转地容纳在泵壳体中。 在叶轮的每个表面的外周部分周向隔开形成多个径向叶片槽。 在流路的一个侧面的与流路的另一侧面形成的排出口轴向配置的部分形成有凹部。

公开(公告)号：US4573882A

公开(公告)日：1986-03-04

申请号：US378724

申请日：1982-05-17

申请人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F02M37/08 ,  F04D13/02 ,  F04D29/18 ,  F04B35/04 ,  F04D5/00

CPC分类号： F02M37/08 ,  F04D13/021 ,  F04D29/188 ,  Y10T403/64

摘要： An electrically operated fuel pump apparatus comprises an electric motor and a regenerative pump having a pump housing and a disc-like impeller. The motor shaft has an end portion extending into a central axial through-hole formed in an end wall of the pump housing. A joint member comprising a ring-like base and a circumferential row of axial rods extending therefrom is rotatably disposed in the axial through-hole in the end wall of the pump housing and secured to the end portion of the motor shaft. The impeller is rotatably and axially movably mounted on an impeller shaft provided separately of the motor shaft and secured to the other end wall of the pump housing. The impeller is formed therein with a circumferential row of axial apertures with which the axial rods of the joint member loosely engage to transmit the rotation of the motor shaft to the impeller while permitting axial movement of the impeller relative to the motor shaft and the pump housing.

摘要翻译： 电动燃油泵装置包括电动机和具有泵壳体和盘状叶轮的再生泵。 马达轴具有延伸到形成在泵壳体的端壁中的中心轴向通孔中的端部。 包括环形基座和从其延伸的周向排的轴向杆的联接构件可旋转地设置在泵壳体的端壁中的轴向通孔中并固定到电动机轴的端部。 叶轮可旋转和轴向可移动地安装在与电机轴分开设置并固定到泵壳体的另一端壁的叶轮轴上。 叶轮在其中形成有周向排的轴向孔，联接构件的轴向杆松动地接合以将马达轴的旋转传递到叶轮，同时允许叶轮相对于马达轴和泵壳体的轴向运动 。

公开(公告)号：US4492515A

公开(公告)日：1985-01-08

申请号：US377546

申请日：1982-05-12

申请人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F04D5/00 ,  F04D1/02 ,  F04D1/12

CPC分类号： F04D5/002 ,  F05B2260/305

摘要： A regenerative pump has a pump housing and a disc-like impeller mounted in the pump housing for axial movement therein and rotated by an electric motor. The impeller is provided with circumferential rows of vane grooves formed in the end faces of the impeller adjacent to the outer periphery thereof. The pump housing has inner surfaces closely spaced from the impeller end faces. Circumferentially continuous annular projections or circumferentially discontinuous projections are formed on either the impeller end faces or the housing inner surfaces to keep at least the major surface areas of the impeller end faces closely spaced from the mating inner surfaces of the housing. Axial passages extend through the impeller to equalize fluid pressures on the opposite impeller end faces.

摘要翻译： 再生泵具有泵壳体和安装在泵壳体中的盘状叶轮，用于在其中轴向运动并由电动机旋转。 叶轮设置有形成在叶轮的与其外周边相邻的端面中的圆周排的叶片槽。 泵壳体具有与叶轮端面紧密间隔的内表面。 圆周连续的环形突起或周向不连续的突起形成在叶轮端面或壳体内表面上，以保持至少叶轮端面的主表面区域紧密地与壳体的配合内表面间隔开。 轴向通道延伸穿过叶轮，以平衡相对的叶轮端面上的流体压力。

公开(公告)号：US4723888A

公开(公告)日：1988-02-09

申请号：US369426

申请日：1982-04-19

申请人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F04D5/00

CPC分类号： F04D5/002 ,  F04D5/007 ,  F05B2250/503

摘要： A regenerative pump has a pump housing and a disc-like impeller mounted in the housing so as to be rotated by a motor. The impeller is provided with circumferential rows of radial vane grooves formed in the opposite end faces of the impeller adjacent to the outer periphery thereof. The rows of grooves are surrounded by a circumferential fluid passage which is formed between the impeller and the pump housing and communicated with suction and discharge ports formed in the pump housing and open to the circumferential fluid passage adjacent to the outer peripheral edges of respective end faces of the impeller. Each of the vane grooves has a bottom face which is arcuate as viewed in a radial section of the impeller. The suction port is substantially tangential to the bottom face of each vane groove in the adjacent end face of the impeller at the junction between the groove bottom face and the end face of the impeller.

摘要翻译： 再生泵具有泵壳体和安装在壳体中的盘状叶轮，以便通过马达旋转。 叶轮设置有形成在叶轮的与其外周边相邻的相对端面中的圆周排的径向叶片槽。 各排的槽被形成在叶轮和泵壳体之间的周向流体通道包围，并且与形成在泵壳体中的吸入口和排出口连通，并且与相邻端面的外周边缘相邻的周向流体通道开口 的叶轮。 每个叶片槽具有在叶轮的径向截面中观察到的弓形的底面。 在槽底面和叶轮的端面之间的接合处，吸入口基本上与叶轮的相邻端面中的叶片槽的底面相切。

公开(公告)号：US4451213A

公开(公告)日：1984-05-29

申请号：US362855

申请日：1982-03-29

申请人： Toshihiro Takei ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Kiyohiko Watanabe ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Toshihiro Takei ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Kiyohiko Watanabe ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F02M37/10 ,  F02M37/04 ,  F04D5/00 ,  F04B35/04 ,  F01D3/00

CPC分类号： F04D5/002 ,  F02M37/048

摘要： An electrically operated fuel pump device comprises a regenerative pump component and an electric motor component operatively connected to the regenerative pump component to actuate the same. The regenerative pump component includes a pump casing having spaced inner surfaces thereof cooperating with each other to define therebetween a pump chamber. An impeller is disposed within the pump chamber rotatably and axially movably. Clearances are defined between axial end faces of the impeller and the inner surfaces of the pump casing, respectively. Liquid fuel increased in pressure to a discharge pressure by the rotation of the impeller is introduced into the clearances to act on the axial end faces of the impeller so as to minimize the direct contact of the axial end faces of the impeller with the respective inner surfaces of the pump casing.

摘要翻译： 电动燃料泵装置包括再生泵部件和可操作地连接到再生泵部件以致动其的电动机部件。 再生泵部件包括具有间隔开的内表面的泵壳体，其彼此配合以在其间限定泵室。 叶轮可旋转和轴向可移动地设置在泵室内。 分别在叶轮的轴向端面和泵壳的内表面之间限定间隙。 通过叶轮的旋转而将压力升高到排出压力的液体燃料被引入到间隙中以作用在叶轮的轴向端面上，以便最小化叶轮的轴向端面与相应内表面的直接接触 的泵壳。

公开(公告)号：US4493620A

公开(公告)日：1985-01-15

申请号：US358785

申请日：1982-03-16

申请人： Toshihiro Takei ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Kiyohiko Watanabe ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Toshihiro Takei ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Kiyohiko Watanabe ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F02M37/04 ,  F02M37/10 ,  F04D5/00 ,  F04B35/04

CPC分类号： F04D5/002 ,  F02M37/048

摘要： An electrically operated fuel pump device for use in vehicles comprises a regenerative pump component and an electric motor component operatively connected to the regenerative pump component to actuate the same. The regenerative pump component includes a casing defining therein a pump chamber and a closed vane type impeller rotatably disposed within the pump chamber. The impeller has an outer peripheral portion thereof cooperating with the pump chamber to define a pump flow passage. The impeller has in the outer peripheral portion a plurality of circumferentially spaced vane grooves formed in opposite end faces of the impeller. The impeller has its outer diameter within a range of approximately 20-65 mm. A flow passage representative dimension defined by S/l is within a range of approximately 0.4-2 mm where S is a cross-sectional area of the pump flow passage and l is a cross-sectional peripheral length of the outer peripheral portion of the impeller.

摘要翻译： 用于车辆的电动燃油泵装置包括再生泵部件和可操作地连接到再生泵部件以致动该再生泵部件的电动机部件。 再生泵部件包括壳体，其中限定有泵室和可旋转地设置在泵室内的封闭叶片式叶轮。 叶轮具有与泵室配合的外周部分以限定泵流动通道。 叶轮在外周部分具有形成在叶轮的相对端面中的多个周向间隔开的叶片槽。 叶轮的外径在大约20-65mm的范围内。 由S / l限定的流路代表尺寸在大约0.4-2mm的范围内，其中S是泵流道的横截面面积，l是叶轮外周部分的横截面周长 。

公开(公告)号：US4445821A

公开(公告)日：1984-05-01

申请号：US372169

申请日：1982-04-26

申请人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Kiyohiko Watanabe ,  Kazuma Matsui ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F02M37/04 ,  F02M37/10 ,  F04C15/00 ,  F04D5/00 ,  F04D15/00 ,  F04B39/06 ,  F04B35/04

CPC分类号： F04C15/0042 ,  F02M37/048 ,  F04D5/002

摘要： A fuel pump apparatus has an electric motor and a regenerative pump having a pump housing and an impeller rotated by the motor shaft journalled by a bearing to the pump housing. The impeller is operative to produce in the pump housing a fluid pressure which is unbalanced in the circumferential direction of the impeller and forms circumferentially unbalanced radially inward forces the resultant force of which is applied through the impeller to a first side of the peripheral surface of the shaft. The discharge port of the pump is open to the interior space within the motor. An opening is formed in the bearing and has an inner end faced to a second side of the peripheral surface of the motor shaft substantially diametrically opposite to the first side, whereby the discharge pressure of the pump is applied through the motor interior space and through the opening in the bearing to the second side of the motor shaft to counterbalance to the resultant force of the circumferentially unbalanced radially inward forces applied to the motor shaft.

摘要翻译： 燃料泵装置具有电动马达和再生泵，其具有泵壳体和由轴承支承在泵壳体上的马达轴线旋转的叶轮。 叶轮可操作以在泵壳体中产生流体压力，该流体压力在叶轮的圆周方向上不平衡，并且形成周向不平衡的径向向内的力，其合力通过叶轮施加到第二侧的周向表面的第一侧 轴。 泵的排放口对电机内的内部空间开放。 在轴承上形成开口，并且具有面向马达轴的外周面的与第一侧大致直径相对的第二侧的内端，由此泵的排出压力通过马达内部空间并通过 在电动机轴的第二侧将轴承打开以抵消施加到电动机轴的周向不平衡的径向向内的力的合力。

公开(公告)号：US4556363A

公开(公告)日：1985-12-03

申请号：US505849

申请日：1983-06-20

申请人： Kiyohiko Watanabe ,  Yoshiyuki Hattori ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

发明人： Kiyohiko Watanabe ,  Yoshiyuki Hattori ,  Toshiaki Nakamura ,  Shunsaku Ohnishi

IPC分类号： F02M37/04 ,  F04D5/00

CPC分类号： F04D5/005 ,  F02M37/048

摘要： A pumping apparatus is adapted for providing a small amount of flow rate under high pressure and includes a pumping chamber, a rotating shaft and an impeller in the form of a disk which impeller is connected at its central portion to the rotating shaft to rotate in the pumping chamber. A first pumping section of the pumping apparatus comprises a bypass regenerative pump which includes grooves formed on the opposite side surfaces of the impeller and arranged in a circle surrounding the rotating shaft, and groove-like channels formed on the wall of the pumping chamber in facing relationship to the grooves on the impeller with narrow gaps therebetween. A second pumping section of the pumping apparatus is connected in series to the first pumping section between the outer peripheral portion of the impeller and the wall of the pumping chamber, and comprises a regenerative pump which includes grooves provided on the outer peripheral portion of the impeller.

摘要翻译： 泵送装置适于在高压下提供少量的流量，并且包括泵送室，旋转轴和叶片形式的叶轮，叶轮在其中心部分处连接到旋转轴以在旋转轴中旋转 泵房。 泵送装置的第一泵送部分包括旁路再生泵，其包括形成在叶轮的相对侧表面上的并且围绕旋转轴布置的圆形槽和形成在泵送室的壁上的槽状通道， 与叶轮上的凹槽的关系，其间具有窄间隙。 泵送装置的第二泵送部分与叶轮的外周部分和泵送室的壁之间的第一泵送部分串联连接，并且包括再生泵，其包括设置在叶轮的外周部分上的槽 。

公开(公告)号：US4538958A

公开(公告)日：1985-09-03

申请号：US575389

申请日：1984-01-30

申请人： Toshihiro Takei ,  Yoshiyuki Hattori ,  Shunsaku Ohnishi

发明人： Toshihiro Takei ,  Yoshiyuki Hattori ,  Shunsaku Ohnishi

IPC分类号： F04D5/00 ,  F02M37/10 ,  F02M37/20 ,  F04D9/00 ,  F04D9/02

CPC分类号： F04D9/003 ,  F02M37/20

摘要： A fuel pump comprises a regenerative pump section, a driving section and a housing, the regenerative pump section being provided with a vapor vent for discharging fuel vapor. The vapor vent communicates with an outside of the fuel pump through a vent housing for a vortex flow. The vent housing has a vent chamber, a tangential groove and a discharge hole. A vortex flow of the fuel including the fuel vapor generates in the vent chamber and flows from the tangential groove to the discharge hole. When the fuel vapor does not generate, the vortex phenomenon is enhanced so that an amount of the fuel discharged from the discharge hole is reduced. The vent housing may have a radial control groove communicating with a control hole in addition to the tangential groove.

摘要翻译： 燃料泵包括再生泵部分，驱动部分和壳体，所述再生泵部分设置有用于排出燃料蒸气的蒸气排放口。 蒸汽排气通过用于涡流的通气口与燃料泵的外部连通。 通风口壳体具有排气室，切向槽和排放孔。 包括燃料蒸气的燃料的涡流在通气室中产生并从切向槽流到排放孔。 当不产生燃料蒸汽时，涡流现象得到增强，使得从排出孔排放的燃料的量减少。 除了切向槽之外，通风口壳体可以具有与控制孔连通的径向控制槽。

公开(公告)号：US4218196A

公开(公告)日：1980-08-19

申请号：US964793

申请日：1978-11-28

申请人： Shunsaku Ohnishi

发明人： Shunsaku Ohnishi

IPC分类号： F04D29/66 ,  F02M37/00 ,  F02M37/08 ,  F02M37/10 ,  F02M37/20 ,  F04D9/00 ,  F04B17/00 ,  F04B35/04

CPC分类号： F02M37/08 ,  F02M37/10 ,  F02M37/20 ,  F04D9/003

摘要： A motor fuel pump comprises a motor unit, a pump unit and a common driving shaft. The pump housing of the pump unit has a frustum-shaped ceiling with a central opening at the top thereof. The pump impeller has a flat member to which a plurality of outwardly extending blades are secured. Since the central opening of the frustum-shaped ceiling is approximately equal to the fringe of the flat member and opens therebove, vapor generated from the fuel in the pump housing is readily evacuated from the pump housing and cavitation may be prevented.

摘要翻译： 马达燃料泵包括马达单元，泵单元和公共驱动轴。 泵单元的泵壳体具有在其顶部具有中心开口的截头锥形天花板。 泵叶轮具有平坦构件，多个向外延伸的叶片固定到该平坦构件上。 由于截头锥形天花板的中心开口大致等于平坦构件的边缘并在其上打开，所以从泵壳体中的燃料产生的蒸汽容易从泵壳体排出并且可以防止空化。