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公开(公告)号：US10794342B2
公开(公告)日：2020-10-06
申请号：US16323003
申请日：2017-06-09
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koji Maruyama , Shingo Fukuoka , Rui Adachi , Tetsuro Okazono , Norihiro Hayashi , Atsushi Kamiyama , Junichi Takatsuji
Abstract: A pump unit includes an insertion guide member that extends in a longitudinal direction of the pump unit and is used to guide the pump unit at a time of inserting the pump unit into an opening portion of a fuel tank. The insertion guide member includes a stopper portion and a guide portion that are arranged along an edge part of the insertion guide member. When the pump unit is projected in the longitudinal direction onto a plane of projection, the stopper portion protrudes outward from an imaginary circle, which has a fitting portion's diameter, on the plane of projection. The guide portion guides the pump unit in a rotational direction relative to a stay. A cross section of the pump unit taken along a guide portion orthogonal plane is set to be within the imaginary circle, which has the fitting portion's diameter.
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公开(公告)号：US10054088B2
公开(公告)日：2018-08-21
申请号：US15031136
申请日：2014-11-03
Applicant: DENSO CORPORATION , KYOSAN DENKI CO., LTD.
Inventor： Yutaka Niwa , Hideto Takahashi , Tetsuro Okazono , Hironobu Oki , Akihiro Ishitoya , Akinari Sugiyama
CPC classification number: F02M37/106 , F02M37/0023 , F02M37/0029 , F02M37/025 , F02M37/14 , F02M37/22 , F02M37/44 , F02M37/46 , F02M37/50 , F02M2037/087
Abstract: A fuel supply device includes a fuel pump, a filter case that houses a fuel filter, and a port member joined to the filter case, a fuel pumped by the fuel pump from inside a fuel tank is filtered by the fuel filter and supplied from inside the filter case toward an internal combustion engine, and the port member integrally includes a plurality of fuel ports that communicate from inside of the filter case to outside of the filter case.
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公开(公告)号：US11007864B2
公开(公告)日：2021-05-18
申请号：US16592824
申请日：2019-10-04
Applicant: DENSO CORPORATION
Inventor： Norihiro Hayashi , Tetsuro Okazono
Abstract: A vehicle structure includes a fuel tank configured to store a fuel supplied to an internal-combustion engine of a vehicle and a battery configured to store an electric power supplied to an electric motor of the vehicle to drive the vehicle. A gravity center of the battery is lower than a gravity center of the fuel tank, and at least a part of the fuel tank overlaps with the battery in a top plan view of the vehicle.
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公开(公告)号：US10801451B2
公开(公告)日：2020-10-13
申请号：US16580106
申请日：2019-09-24
Applicant: DENSO CORPORATION
Inventor： Takemasa Fujiseki , Tetsuro Okazono , Shinji Noda , Norihiro Hayashi , Hajime Danjo , Shinichi Morita
IPC: F02M37/00 , F16K31/00 , B60K15/03 , B60K15/035
Abstract: A housing has an inner passage to communicate with both a fuel passage, which is to conduct fuel from a fuel pump, and a return passage, which is to return fuel a fuel tank. A valve body is movable in the housing to change a minimum flow passage cross-sectional area of the inner passage. A spring is connected to the valve body and changes its biasing load in correspondence with a fuel temperature to move the valve body. The spring moves the valve body such that the minimum flow passage cross-sectional area, when the fuel temperature is equal to or higher than a predetermined vapor generation temperature, is larger than the minimum flow passage cross-sectional area when the fuel temperature is lower than the vapor generation temperature.
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公开(公告)号：US10145342B2
公开(公告)日：2018-12-04
申请号：US15506041
申请日：2015-08-26
Applicant: DENSO CORPORATION , KYOSAN DENKI CO., LTD.
Inventor： Hideto Takahashi , Masaharu Oohashi , Tetsuro Okazono , Hironobu Oki
Abstract: A fuel supply device includes a fuel pump, a filter case, a fuel passage, a discharge passage, and a residual pressure holding valve. A communication port opens at a shifted position of the fuel passage that is positionally shifted from the residual pressure holding valve toward the discharge passage. The fuel passage includes an outside passage part through which fuel flows from the communication port toward the discharge passage, and an inside passage part that throttles a flow of fuel flowing from the communication port toward the residual pressure holding valve more than the outside passage part. When a passage cross-sectional area of the inside passage part is converted into a passage cross-sectional area of a circular pipe, D which is a passage diameter of the circular pipe, and L which is a length of the inside passage part satisfy a relational expression of L/D≥3.
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Patent Agency Ranking
公开(公告)号：US20130230418A1
公开(公告)日：2013-09-05
申请号：US13777534
申请日：2013-02-26
Applicant: DENSO CORPORATION
Inventor： Tetsuro Okazono
IPC: F04B15/00
CPC classification number: F04B15/00 , F04B23/025
Abstract: A fuel supply apparatus includes an electric pump, a control circuit, a lid component, and a connection component. The electric pump has a pressure raising part which raises a pressure of fuel in a fuel tank. The control circuit controls electric power supplied to the electric pump, and is arranged on the lid component. The connection component connects the lid component and the electric pump with each other, and defines a communicating path inside. A fuel outlet part of the electric pump and a circulation space of the lid component communicate with each other through the communicating path defined in the connection component.
Abstract translation: 燃料供给装置包括电动泵，控制电路，盖部件和连接部件。 电动泵具有升高燃料箱内的燃料压力的升压部。 控制电路控制供给电动泵的电力，并配置在盖部件上。 连接部件将盖部件和电动泵彼此连接，并且在内部形成连通路径。 电动泵的燃料出口部分和盖部件的循环空间通过连接部件中限定的连通路径彼此连通。
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公开(公告)号：US10669976B2
公开(公告)日：2020-06-02
申请号：US16077553
申请日：2017-02-24
Applicant: DENSO CORPORATION
Inventor： Shingo Fukuoka , Norihiro Hayashi , Tetsuro Okazono
Abstract: A fuel supply device includes: a cover attached to an upper wall of a fuel tank; a pump unit disposed on a bottom wall of the fuel tank; and a connecting strut that connects the cover and the pump unit with each other. The pump unit includes: a unit body supported by the connecting strut in a radial direction and a thrust direction, and a fuel pump arranged on the unit body to pump fuel drawn from the fuel tank toward an internal-combustion engine. The fuel pump is located offset toward the connecting strut from a width center of a width from a thrust support part where the unit body is supported by the connecting strut to an end part of the unit body opposite from the connecting strut in a specific transverse direction.
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公开(公告)号：US10054089B2
公开(公告)日：2018-08-21
申请号：US15523776
申请日：2015-11-02
Applicant: DENSO CORPORATION , KYOSAN DENKI CO., LTD.
Inventor： Hideto Takahashi , Masaharu Oohashi , Tetsuro Okazono , Hironobu Oki
CPC classification number: F02M37/106 , F02M37/0029 , F02M37/025 , F02M37/103 , F02M55/04
Abstract: A fuel supply device includes a sub-tank, a pump unit, a jet pump, and a connection structure connected with the pump unit and the jet pump. The connection structure has a guide part that is provided to the pump unit and guides the pressurized fuel toward the bottom in an axial direction, a pressurizing part that is provided to the jet pump and is fitted to the guide part from a side of the bottom in an axially slidable manner, to which the pressurized fuel is guided from the guide part, a shock-absorbing member that has a low spring constant that is predetermined and mitigates an axial impact between the guide part and the pressurizing part, and a sealing member that has a high spring constant higher than the low spring constant of the shock-absorbing member and radially seals a space between the guide part and the pressurizing part.
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公开(公告)号：US09388780B2
公开(公告)日：2016-07-12
申请号：US14250961
申请日：2014-04-11
Applicant: DENSO CORPORATION
Inventor： Shinobu Oikawa , Tetsuro Okazono
CPC classification number: F02M37/103 , F02M37/0082 , Y10T137/86035
Abstract: A resilient member is accommodated within a single support column, which connects a flange and a pump unit. The resilient member presses the pump unit in an axial direction toward a bottom part of a fuel tank through a holder member. The support column is formed in a polygonal tube shape and has a specific range in a part in the axial direction. A peripheral wall in the specific range is concave relative to corner parts of peripheral walls in an outside of the specific range so that a longitudinal groove having a groove bottom is provided to separate an inside and an outside of the support column. The holder member holding the pump unit is formed in a polygonal hole shape to be fitted with the peripheral walls. The holder member has a slide protrusion, which slidingly moves in the longitudinal groove in a state that the holder member is pushed into the longitudinal groove from the outside of the support column.
Abstract translation: 弹性构件容纳在连接凸缘和泵单元的单个支撑柱内。 弹性构件通过保持构件沿着轴向朝向燃料箱的底部压迫泵单元。 支撑柱形成为多边形管状，并且在轴向方向上具有一定范围。 在特定范围内的周壁相对于特定范围的外围的周壁的角部是凹的，因此设置有具有凹槽底部的纵向槽以分离支撑柱的内部和外部。 保持泵单元的保持器构件形成为与周壁配合的多边形孔形状。 保持器构件具有滑动突起，其在保持构件从支撑柱的外部被推入纵向凹槽的状态下在纵向槽中滑动。
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公开(公告)号：US11118551B2
公开(公告)日：2021-09-14
申请号：US17075941
申请日：2020-10-21
Applicant: DENSO CORPORATION
Inventor： Norihiro Hayashi , Tetsuro Okazono , Teppei Matsumoto , Yoshihisa Sanami , Kazuaki Ae
Abstract: A fuel supply device includes a pump unit, a lid unit and a strut linking unit. The pump unit is located on a bottom of a fuel tank for discharging fuel from the fuel tank to an outside thereof. The lid unit is attached to an upper wall of the fuel tank to close an opening formed in the upper wall. The lid unit has a fuel discharge port. The strut linking unit connects the lid unit to the pump unit. The strut linking unit includes an upper-side strut member, which is formed as an independent component from the lid unit. The strut linking unit includes a lower-side strut member, which is movably connected to the upper-side strut member in a vertical direction. The upper-side strut member is connected to the lid unit by a snap-fit connection. A connecting portion between the upper-side strut member and the lid unit has a stress concentration portion, which is preferentially damaged when an external force is applied to the strut linking unit.
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