JP4872692B2 - Fuel supply device - Google Patents

Fuel supply device Download PDF

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JP4872692B2
JP4872692B2 JP2007025372A JP2007025372A JP4872692B2 JP 4872692 B2 JP4872692 B2 JP 4872692B2 JP 2007025372 A JP2007025372 A JP 2007025372A JP 2007025372 A JP2007025372 A JP 2007025372A JP 4872692 B2 JP4872692 B2 JP 4872692B2
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fuel
lid member
plate portion
fuel pump
support member
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JP2008190418A (en
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典也 松本
正晃 小西
洋介 西江
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Denso Corp
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Denso Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

本発明は、燃料タンクの内部の燃料を燃料タンクの外部へ供給する燃料供給装置に関する。   The present invention relates to a fuel supply device that supplies fuel inside a fuel tank to the outside of the fuel tank.

従来、燃料タンクの内部に燃料ポンプを収容するインタンク式の燃料供給装置が公知である。このような燃料供給装置は、燃料タンクの開口部を塞ぐ蓋部材と、燃料タンクの内部に収容される燃料ポンプとを備えている。燃料ポンプは、例えば棒状の支持部材によって蓋部材に支持されている。燃料ポンプは、支持部材によって直接、または燃料ポンプを収容するサブタンクを通して蓋部材に支持される。支持部材の蓋部材側の端部は、例えば圧入などにより蓋部材に設けられている突出部の内周側に収容されている。突出部は、蓋部材から燃料タンク側に突出し、内部に支持部材を収容する穴部を形成している（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, an in-tank type fuel supply device that houses a fuel pump inside a fuel tank is known. Such a fuel supply device includes a lid member that closes the opening of the fuel tank, and a fuel pump that is accommodated in the fuel tank. The fuel pump is supported by the lid member by, for example, a rod-shaped support member. The fuel pump is supported by the lid member directly by the support member or through a sub tank that houses the fuel pump. The end of the support member on the lid member side is accommodated on the inner peripheral side of the protruding portion provided on the lid member, for example, by press fitting. The protruding portion protrudes from the lid member toward the fuel tank, and forms a hole portion that accommodates the support member therein (see, for example, Patent Document 1).

このように支持部材によって燃料ポンプを蓋部材に支持する場合、燃料タンクの内部に収容された燃料ポンプには水平方向すなわち支持部材の軸に垂直な方向へ力が加わると、その力は支持部材を支持する突出部に加わる。突出部は蓋部材から突出する筒状に形成されているため、穴部を形成する突出部の筒状の側壁の肉厚は比較的小さい。そのため、蓋部材と燃料ポンプとの相対的な位置のずれによって支持部材に過大な力が加わると、突出部の破損を招くおそれがある。   When the fuel pump is supported on the lid member by the support member as described above, when a force is applied to the fuel pump accommodated in the fuel tank in the horizontal direction, that is, the direction perpendicular to the axis of the support member, the force is applied to the support member. Is added to the protruding part that supports. Since the protrusion is formed in a cylindrical shape protruding from the lid member, the thickness of the cylindrical side wall of the protrusion forming the hole is relatively small. For this reason, if an excessive force is applied to the support member due to the relative displacement between the lid member and the fuel pump, the protruding portion may be damaged.

また、筒部の強度を高めるために、突出部を燃料ポンプ側まで延長することが考えられる。しかし、突出部を延長すると、突出部の燃料ポンプ側の端部から燃料ポンプまでの距離が小さくなる。そのため、蓋部材と燃料ポンプとを接近して配置することが困難となり、燃料供給装置の高さの低減が困難になる。その結果、近年普及している浅い扁平型の燃料タンクへの対応が困難になるという問題がある。   In order to increase the strength of the cylindrical portion, it is conceivable to extend the protruding portion to the fuel pump side. However, when the protrusion is extended, the distance from the end of the protrusion on the fuel pump side to the fuel pump is reduced. Therefore, it becomes difficult to arrange the lid member and the fuel pump close to each other, and it becomes difficult to reduce the height of the fuel supply device. As a result, there is a problem that it becomes difficult to cope with a shallow flat fuel tank that has been popular in recent years.

特開２００５−２２０７６４号公報Japanese Patent Laid-Open No. 2005-220964

そこで、本発明の目的は、燃料タンクの深さ方向の全長を低減しつつ、蓋部材の強度を向上する燃料供給装置を提供することにある。   Therefore, an object of the present invention is to provide a fuel supply device that improves the strength of the lid member while reducing the overall length of the fuel tank in the depth direction.

請求項１記載の発明では、突出部の内周側に形成される穴部は、燃料タンクの開口部を塞ぐ板部に達して燃料ポンプとは反対側の端部において外周側に前記板部が存在している。蓋部材は、燃料タンクの開口部を塞ぐために円板状に形成されている板部を有している。この板部に穴部が達することにより、突出部に圧入される支持部材の燃料ポンプとは反対側の端部は、板部に達し、板部の燃料ポンプ側端面とその反対側端面との間の板厚範囲内に位置する。そのため、支持部材の燃料ポンプとは反対側において支持部材の外周側には板部材が存在する。板部は上述のように板状に形成されているため、支持部材の外周側には大きな板厚を有する板部が存在することとなる。その結果、支持部材に力が加わり軸に対し傾斜するとき、板厚の大きな板部がその支点となる。これにより、支持部材に大きな力が加わっても、板厚の大きな板部がその力を受け止める。また、蓋部材は、板部を挟んで穴部の反対側に凸部を有している。これにより、穴部が板部に達しても、凸部によって蓋部材の板厚は確保されている。これらのように、突出部を延長することなく、蓋部材の強度が向上する。したがって、燃料タンクの深さ方向の全長を低減しつつ、蓋部材の強度を高めることができ、蓋部材の破損を低減することができる。 In the first aspect of the present invention, a hole portion formed on the inner peripheral side of the protrusion, the plate on the outer peripheral side at the end opposite to the fuel pump reached the plate portion for closing the opening portion of the fuel tank Department exists . The lid member has a plate portion formed in a disk shape so as to close the opening of the fuel tank. By the hole in the plate portion reaches the end portion opposite to the fuel pump support member which is press-fitted into the protrusion, it reached the plate portion, the fuel pump side end surface of the plate portion and the opposite end face It is located in the plate thickness range between . Therefore, a plate member exists on the outer peripheral side of the support member on the side opposite to the fuel pump of the support member. Since the plate portion is formed in a plate shape as described above, a plate portion having a large plate thickness exists on the outer peripheral side of the support member. As a result, when a force is applied to the support member and the support member is inclined with respect to the axis, the plate portion having a large plate thickness becomes the fulcrum. Thereby, even if a large force is applied to the support member, the plate portion having a large plate thickness receives the force. The lid member has a convex portion on the opposite side of the hole portion with the plate portion interposed therebetween. Thereby, even if the hole reaches the plate portion, the plate thickness of the lid member is secured by the convex portion. As described above, the strength of the lid member is improved without extending the protruding portion. Therefore, the strength of the lid member can be increased while reducing the overall length of the fuel tank in the depth direction, and damage to the lid member can be reduced.

請求項２記載の発明では、支持部材の外径は均一である。そのため、支持部材は、切削などの加工を必要としない。したがって、簡単な構造で支持部材を形成することができる。
請求項３記載の発明では、蓋部材は、突起部を有している。突起部は、凸部の燃料ポンプ側の端部から穴部の内側へ突出している。そのため、支持部材を中空に形成するとき、突起部は中空の支持部材に圧入される。これにより、支持部材の端部は、突起部によって強固に保持される。したがって、支持部材の抜けを低減することができるとともに、蓋部材の強度をさらに高めることができる。
請求項４記載の発明では、突出部は、軸方向の途中に開口部を有し、開口部が穴部を形成する突出部の側壁を径方向に貫いており、開口部から支持部材に係止部材が取り付けられている。 In the invention according to claim 2, the outer diameter of the support member is uniform. Therefore, the support member does not require processing such as cutting. Therefore, the support member can be formed with a simple structure.
In the invention according to claim 3, the lid member has a protrusion. The protrusion protrudes from the end of the protrusion on the fuel pump side to the inside of the hole. Therefore, when the support member is formed to be hollow, the protrusion is press-fitted into the hollow support member. Thereby, the edge part of a supporting member is firmly hold | maintained by a projection part. Accordingly, it is possible to reduce the removal of the support member and further increase the strength of the lid member.
In the invention according to claim 4, the projecting portion has an opening portion in the axial direction, and the opening portion penetrates the side wall of the projecting portion forming the hole portion in the radial direction, and is engaged with the support member from the opening portion. A stop member is attached.

以下、本発明の複数の実施形態を図面に基づいて説明する。なお、複数の実施形態において実質的に同一の構成部位には同一の符号を付し、説明を省略する。
（第１実施形態）
本発明の第１実施形態による燃料供給装置を図１に示す。燃料供給装置１０は、蓋部材２０を備えている。蓋部材２０は、板部２１、筒部２２、突出部２３および凸部２４を有している。蓋部材２０は、燃料タンク１００の上壁１０１に取り付けられ、燃料タンク１００の開口１０２を塞いでいる。燃料供給装置１０は、蓋部材２０以外のポンプモジュール３０が燃料タンク１００の内部に収容されている。 Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. Note that, in a plurality of embodiments, substantially the same components are denoted by the same reference numerals, and description thereof is omitted.
(First embodiment)
A fuel supply apparatus according to a first embodiment of the present invention is shown in FIG. The fuel supply device 10 includes a lid member 20. The lid member 20 includes a plate part 21, a cylinder part 22, a protruding part 23, and a convex part 24. The lid member 20 is attached to the upper wall 101 of the fuel tank 100 and closes the opening 102 of the fuel tank 100. In the fuel supply device 10, the pump module 30 other than the lid member 20 is accommodated in the fuel tank 100.

ポンプモジュール３０は、燃料ポンプ３１、燃料フィルタ３２、サクションフィルタ３３およびプレッシャレギュレータ３４を備えている。燃料ポンプ３１、燃料フィルタ３２、サクションフィルタ３３およびプレッシャレギュレータ３４は、サブタンク４０に収容されている。燃料フィルタ３２は、略円筒状のポンプケース３５を有している。ポンプケース３５は、ケース本体３６およびカバー３７から構成されている。ポンプケース３５は、筒状の内部にフィルタエレメント３８を収容している。燃料フィルタ３２のポンプケース３５は、略円筒状に形成され、内周側に燃料ポンプ３１を収容している。これにより、燃料フィルタ３２は、燃料ポンプ３１の外周側を周方向へ覆っている。燃料ポンプ３１は、図示しないモータを収容している。燃料ポンプ３１は、モータとともに回転するインペラなどの回転部材によりサクションフィルタ３３から吸入した燃料を昇圧する。   The pump module 30 includes a fuel pump 31, a fuel filter 32, a suction filter 33, and a pressure regulator 34. The fuel pump 31, the fuel filter 32, the suction filter 33 and the pressure regulator 34 are accommodated in the sub tank 40. The fuel filter 32 has a substantially cylindrical pump case 35. The pump case 35 includes a case main body 36 and a cover 37. The pump case 35 accommodates a filter element 38 inside a cylindrical shape. The pump case 35 of the fuel filter 32 is formed in a substantially cylindrical shape, and houses the fuel pump 31 on the inner peripheral side. Thereby, the fuel filter 32 covers the outer peripheral side of the fuel pump 31 in the circumferential direction. The fuel pump 31 houses a motor (not shown). The fuel pump 31 boosts the fuel sucked from the suction filter 33 by a rotating member such as an impeller that rotates together with the motor.

プレッシャレギュレータ３４は、ポンプケース３５のケース本体３６と一体に形成された流出部３９に設けられている。プレッシャレギュレータ３４は、燃料ポンプ３１が吐出し燃料フィルタ３２を通過した燃料の圧力を調整する。サクションフィルタ３３は、燃料ポンプ３１の吸入側に設けられている。サクションフィルタ３３は、燃料に含まれる比較的大きな異物を除去する。   The pressure regulator 34 is provided in an outflow portion 39 formed integrally with the case main body 36 of the pump case 35. The pressure regulator 34 adjusts the pressure of the fuel discharged from the fuel pump 31 and passed through the fuel filter 32. The suction filter 33 is provided on the suction side of the fuel pump 31. The suction filter 33 removes relatively large foreign matters contained in the fuel.

蓋部材２０には、燃料吐出管４１および電気コネクタ４２が設けられている。燃料吐出管１１は、サブタンク４０の内部に収容された燃料ポンプ３１から吐出された燃料を燃料タンク１００の外部へ吐出する。燃料ポンプ３１から吐出され燃料フィルタ３２を通過した燃料は、プレッシャレギュレータ３４で圧力が調整された後、蛇腹管４３を経由して燃料吐出管４１へ流出する。電気コネクタ４２は、リード線４４を経由して燃料ポンプ３１と電気的に接続している。図示しない電源からの電力は、電気コネクタ４２およびリード線４４を経由して燃料ポンプ３１へ供給される。   The lid member 20 is provided with a fuel discharge pipe 41 and an electrical connector 42. The fuel discharge pipe 11 discharges the fuel discharged from the fuel pump 31 accommodated in the sub tank 40 to the outside of the fuel tank 100. The fuel discharged from the fuel pump 31 and passing through the fuel filter 32 is adjusted in pressure by the pressure regulator 34 and then flows out to the fuel discharge pipe 41 through the bellows pipe 43. The electrical connector 42 is electrically connected to the fuel pump 31 via a lead wire 44. Electric power from a power source (not shown) is supplied to the fuel pump 31 via the electrical connector 42 and the lead wire 44.

蓋部材２０とポンプモジュール３０とは、支持部材としてのステー５０によって支持されている。ステー５０は、軸方向の一方の端部が蓋部材２０に接続し、他方の端部がポンプモジュール３０のサブタンク４０に接続している。ステー５０は、蓋部材２０とポンプモジュール３０との間において、外径がほぼ一定である。すなわち、ステー５０は、外径が概ね一定の棒状に形成されている。   The lid member 20 and the pump module 30 are supported by a stay 50 as a support member. One end of the stay 50 in the axial direction is connected to the lid member 20, and the other end is connected to the sub tank 40 of the pump module 30. The stay 50 has a substantially constant outer diameter between the lid member 20 and the pump module 30. That is, the stay 50 is formed in a rod shape having a substantially constant outer diameter.

ステー５０の外周側には、弾性部材としてのスプリング５１が設けられている。サブタンク４０は、図示しない筒状の支持部を有している。ステー５０の蓋部材２０とは反対側の端部は、サブタンク４０に設けられている支持部の内周側に軸方向へ移動可能に挿入されている。これにより、蓋部材２０とポンプモジュール３０とは、蓋部材２０の軸方向へ相対移動可能である。すなわち、蓋部材２０は、ステー５０を経由してポンプモジュール３０を燃料タンク１００の深さ方向へ移動可能に支持している。スプリング５１は、蓋部材２０とポンプモジュール３０とを互いに離れる方向へ押し付けている。これにより、ポンプモジュール３０は、スプリング５１によって燃料タンク１００の底壁１０３に押し付けられる。   On the outer peripheral side of the stay 50, a spring 51 as an elastic member is provided. The sub tank 40 has a cylindrical support portion (not shown). The end of the stay 50 opposite to the lid member 20 is inserted into the inner peripheral side of the support provided in the sub tank 40 so as to be movable in the axial direction. Thereby, the lid member 20 and the pump module 30 are relatively movable in the axial direction of the lid member 20. That is, the lid member 20 supports the pump module 30 through the stay 50 so as to be movable in the depth direction of the fuel tank 100. The spring 51 presses the lid member 20 and the pump module 30 away from each other. As a result, the pump module 30 is pressed against the bottom wall 103 of the fuel tank 100 by the spring 51.

次に、蓋部材２０とステー５０との接続部分について詳細に説明する。
蓋部材２０は、上述のように板部２１、筒部２２、突出部２３および凸部２４から構成されている。蓋部材２０を構成する板部２１、筒部２２、突出部２３および凸部２４は、樹脂で一体に形成されている。蓋部材２０は、燃料タンク１００の上壁１０１に取り付けられている。板部２１は、円板状に形成されている。板部２１は、外径が燃料タンク１００の開口１０２よりも大きい。そのため、板部２１は、燃料タンク１００の開口１０２を塞いでいる。筒部２２は、板部２１よりも外径が小さな筒状に形成され、板部２１から燃料タンク１００の内側へ向けて突出している。これにより、筒部２２は、開口１０２から燃料タンク１００の内部に挿入される。 Next, the connecting portion between the lid member 20 and the stay 50 will be described in detail.
The lid member 20 is composed of the plate portion 21, the cylindrical portion 22, the protruding portion 23, and the convex portion 24 as described above. The plate part 21, the cylinder part 22, the protrusion part 23, and the convex part 24 which comprise the cover member 20 are integrally formed with resin. The lid member 20 is attached to the upper wall 101 of the fuel tank 100. The plate part 21 is formed in a disk shape. The plate portion 21 has an outer diameter larger than the opening 102 of the fuel tank 100. Therefore, the plate portion 21 closes the opening 102 of the fuel tank 100. The cylindrical portion 22 is formed in a cylindrical shape having an outer diameter smaller than that of the plate portion 21, and protrudes from the plate portion 21 toward the inside of the fuel tank 100. Thereby, the cylinder part 22 is inserted into the fuel tank 100 from the opening 102.

突出部２３は、筒部２２の径方向内側において板部２１から燃料タンク１００の内側へ向けて突出している。突出部２３は、板部２１の径方向において両端部に設けられている。突出部２３は、内側に軸方向へ伸びる穴部２５を形成している。穴部２５は、図２に示すように一方の端部が突出部２３のポンプモジュール３０側の端部に開口するとともに、他方の端部が板部２１に達している。そのため、穴部２５は、ポンプモジュール３０とは反対側の端部において外周側に板部２１が存在する。   The protruding portion 23 protrudes from the plate portion 21 toward the inside of the fuel tank 100 on the radially inner side of the cylindrical portion 22. The protruding portions 23 are provided at both ends in the radial direction of the plate portion 21. The protrusion 23 forms a hole 25 extending in the axial direction on the inner side. As shown in FIG. 2, one end of the hole 25 opens at the end of the protruding portion 23 on the pump module 30 side, and the other end reaches the plate portion 21. For this reason, the hole portion 25 has the plate portion 21 on the outer peripheral side at the end opposite to the pump module 30.

突出部２３は、軸方向の途中に開口部２６を有している。開口部２６は、穴部２５を形成する突出部２３の側壁を径方向に貫いている。この開口部２６からは、ステー５０に係止部材としてのリング２７が取り付けられる。ステー５０を突出部２３の内周側に挿入した後、開口部２６からリング２７をステー５０に取り付けることにより、ステー５０のポンプモジュール３０とは反対側の端部が蓋部材２０に保持される。   The protrusion 23 has an opening 26 in the middle of the axial direction. The opening 26 penetrates the side wall of the protrusion 23 that forms the hole 25 in the radial direction. A ring 27 as a locking member is attached to the stay 50 from the opening 26. After the stay 50 is inserted into the inner peripheral side of the protrusion 23, the ring 27 is attached to the stay 50 through the opening 26, whereby the end of the stay 50 opposite to the pump module 30 is held by the lid member 20. .

穴部２５は、ポンプモジュール３０とは反対側の端部が板部２１に達している。そのため、ステー５０を突出部２３に挿入したとき、ステー５０のポンプモジュール３０とは反対側の端部は、板部２１に位置している。蓋部材２０は、板部２１を挟んで穴部２５とは反対側に凸部２４を有している。凸部２４は、蓋部材２０のポンプモジュール３０とは反対側の面からポンプモジュール３０とは反対側へ突出している。凸部２４を設けることにより、突出部２３が形成する穴部２５に挿入されたステー５０が蓋部材２０を貫くことがない。凸部２４の高さｈおよび肉厚ｔ１は、板部２１の肉厚ｔ２とほぼ同一である。また、凸部２４と板部２１とを接続する壁部の肉厚ｔ３は、板部２１の肉厚ｔ２および凸部２４の肉厚ｔ１とほぼ同一に設定されている。   The end of the hole 25 opposite to the pump module 30 reaches the plate 21. Therefore, when the stay 50 is inserted into the protrusion 23, the end of the stay 50 opposite to the pump module 30 is located on the plate portion 21. The lid member 20 has a convex portion 24 on the side opposite to the hole portion 25 with the plate portion 21 interposed therebetween. The convex portion 24 protrudes from the surface of the lid member 20 opposite to the pump module 30 to the opposite side of the pump module 30. By providing the convex portion 24, the stay 50 inserted into the hole portion 25 formed by the protruding portion 23 does not penetrate the lid member 20. The height h and the thickness t1 of the convex portion 24 are substantially the same as the thickness t2 of the plate portion 21. The wall thickness t3 connecting the convex portion 24 and the plate portion 21 is set to be substantially the same as the thickness t2 of the plate portion 21 and the thickness t1 of the convex portion 24.

第１実施形態の燃料供給装置１０のように、ステー５０を経由してポンプモジュール３０を蓋部材２０に支持する場合、蓋部材２０とポンプモジュール３０との間には、蓋部材２０の軸方向への相対移動だけでなく、軸に垂直な方向すなわち蓋部材２０の径方向への相対的な移動が生じる。すなわち、蓋部材２０とポンプモジュール３０との間には、蓋部材２０の径方向へ相対的な位置のずれが生じる。ステー５０は、突出部２３の内部に挿入されている。そのため、蓋部材２０とポンプモジュール３０との間の相対移動によって生じた力は、ステー５０を経由してステー５０のポンプモジュール３０とは反対側の端部を支点として集中する。その結果、蓋部材２０とポンプモジュール３０との相対移動によって、突出部２３のポンプモジュール３０とは反対側の端部には大きな力が加わる。   When the pump module 30 is supported by the lid member 20 via the stay 50 as in the fuel supply device 10 of the first embodiment, the axial direction of the lid member 20 is between the lid member 20 and the pump module 30. In addition to the relative movement, the relative movement in the direction perpendicular to the axis, that is, in the radial direction of the lid member 20 occurs. That is, a relative positional shift in the radial direction of the lid member 20 occurs between the lid member 20 and the pump module 30. The stay 50 is inserted into the protrusion 23. Therefore, the force generated by the relative movement between the lid member 20 and the pump module 30 is concentrated via the stay 50 with the end portion of the stay 50 opposite to the pump module 30 as a fulcrum. As a result, due to the relative movement between the lid member 20 and the pump module 30, a large force is applied to the end of the protruding portion 23 opposite to the pump module 30.

第１実施形態の場合、突出部２３の内周側に形成される穴部２５は、ポンプモジュール３０とは反対側の端部が板部２１に達している。そのため、ステー５０のポンプモジュール３０とは反対側の端部は、板部２１に位置する。板部２１は、突出部２３に比較して蓋部材２０の径方向の肉厚が極めて大きい。その結果、ステー５０のポンプモジュール３０とは反対側の端部においてステー５０から蓋部材２０に力が加わっても、その力は肉厚の大きな板部２１で受け止められる。これにより、ステー５０が傾斜しても、その傾斜による力は肉厚の大きな板部２１に加わる。   In the case of the first embodiment, the hole 25 formed on the inner peripheral side of the projecting portion 23 reaches the plate portion 21 at the end opposite to the pump module 30. Therefore, the end portion of the stay 50 opposite to the pump module 30 is located on the plate portion 21. The plate portion 21 has an extremely large thickness in the radial direction of the lid member 20 as compared with the protruding portion 23. As a result, even if a force is applied from the stay 50 to the lid member 20 at the end of the stay 50 opposite to the pump module 30, the force is received by the thick plate portion 21. Thereby, even if the stay 50 is inclined, the force due to the inclination is applied to the thick plate portion 21.

以上のように、第１実施形態では、突出部２３の内周側に形成される穴部２５はポンプモジュール３０とは反対側の端部が板部２１に達している。そのため、穴部２５に挿入されたステー５０のポンプモジュール３０とは反対側の端部は、板部２１に位置する。これにより、蓋部材２０とポンプモジュール３０との相対的な移動によって、ステー５０に傾斜が生じても、ステー５０からの力は肉厚の大きな板部２１が受け止める。したがって、蓋部材２０の強度を高めることができ、蓋部材２０の損傷を低減することができる。   As described above, in the first embodiment, the hole 25 formed on the inner peripheral side of the protruding portion 23 reaches the plate portion 21 at the end opposite to the pump module 30. Therefore, the end of the stay 50 inserted into the hole 25 on the side opposite to the pump module 30 is located on the plate portion 21. Accordingly, even if the stay 50 is inclined due to the relative movement of the lid member 20 and the pump module 30, the plate portion 21 having a large thickness receives the force from the stay 50. Therefore, the strength of the lid member 20 can be increased, and damage to the lid member 20 can be reduced.

また、第１実施形態では、ステー５０からの力を板部２１で受け止めることにより、ステー５０を支持する突出部２３をポンプモジュール３０側へ延長する必要がない。そのため、蓋部材２０とポンプモジュール３０のサブタンク４０とは近接して配置される。すなわち、強度を確保しつつ蓋部材２０とサブタンク４０との間における突出部２３の突出量が低減されるため、蓋部材２０とサブタンク４０との間の距離は低減される。その結果、燃料供給装置１０の高さは低減される。したがって、燃料供給装置１０の体格、特に燃料タンク１００の深さ方向の全長を低減することができ、例えば浅い扁平な燃料タンク１００にも容易に適用することができる。   Further, in the first embodiment, by receiving the force from the stay 50 by the plate portion 21, it is not necessary to extend the protruding portion 23 that supports the stay 50 to the pump module 30 side. Therefore, the lid member 20 and the sub tank 40 of the pump module 30 are arranged close to each other. That is, since the protrusion amount of the protrusion 23 between the lid member 20 and the sub tank 40 is reduced while securing the strength, the distance between the lid member 20 and the sub tank 40 is reduced. As a result, the height of the fuel supply device 10 is reduced. Therefore, the physique of the fuel supply device 10, in particular, the total length in the depth direction of the fuel tank 100 can be reduced, and can be easily applied to, for example, a shallow flat fuel tank 100.

さらに、第１実施形態では、ステー５０は、蓋部材２０からポンプモジュール３０まで軸方向の外径が概ね一定である。そのため、ステー５０は、例えば切削などの加工を必要とせず、構造の簡略化および加工工数の低減を図ることができる。   Furthermore, in the first embodiment, the stay 50 has a substantially constant outer diameter in the axial direction from the lid member 20 to the pump module 30. Therefore, the stay 50 does not require processing such as cutting, and can simplify the structure and reduce the number of processing steps.

（第２実施形態）
本発明の第２実施形態による燃料供給装置の要部を図３に示す。
第２実施形態では、図３に示すようにステー５０は、軸方向の一部に小径部５２を有している。ステー５０に小径部５２を設けることにより、蓋部材２０とポンプモジュール３０との間に相対的な移動が生じたとき、その位置のずれは小径部５２の変形によって吸収される。その結果、ステー５０から蓋部材２０に加わる力はさらに低減される。したがって、第２実施形態では、第１実施形態と比較して加工工数が増加するものの、蓋部材２０の損傷をさらに低減することができる。 (Second Embodiment)
The principal part of the fuel supply apparatus by 2nd Embodiment of this invention is shown in FIG.
In the second embodiment, as shown in FIG. 3, the stay 50 has a small diameter portion 52 in a part in the axial direction. By providing the small diameter portion 52 in the stay 50, when a relative movement occurs between the lid member 20 and the pump module 30, the displacement of the position is absorbed by the deformation of the small diameter portion 52. As a result, the force applied from the stay 50 to the lid member 20 is further reduced. Therefore, in the second embodiment, although the number of processing steps is increased as compared with the first embodiment, damage to the lid member 20 can be further reduced.

（第３、第４実施形態）
本発明の第３、第４実施形態による燃料供給装置の要部をそれぞれ図４または図５に示す。
第３実施形態では、図４に示すようにステー６０は、蓋部材２０の穴部２５に圧入されている。蓋部材２０は、凸部２４から穴部２５の内側に突出する突起部２８を有している。ステー６０は、ポンプモジュール３０とは反対側の端部に中空の筒部６１を有している。これにより、突起部２８は、ステー６０の筒部６１の内周側に圧入される。すなわち、ステー６０は、外周側が突出部２３に圧入され、内周側が突起部２８に圧入される。その結果、ステー６０は、蓋部材２０に対し強固に保持される。第３実施形態では、穴部２５は、第１実施形態と同様にポンプモジュール３０と反対側の端部が板部２１に位置している。そのため、ステー６０を突出部２３に圧入する場合でも、ステー６０からの力は肉厚の大きな板部２１が受け止める。したがって、蓋部材２０の強度を高めることができ、蓋部材２０の損傷を低減することができる。
また、第３実施形態では、ステー６０を蓋部材２０に圧入することにより、ステー６０と蓋部材２０との取付工数を低減することができる。 (Third and fourth embodiments)
The main parts of the fuel supply apparatus according to the third and fourth embodiments of the present invention are shown in FIG. 4 and FIG. 5, respectively.
In the third embodiment, as shown in FIG. 4, the stay 60 is press-fitted into the hole 25 of the lid member 20. The lid member 20 has a protruding portion 28 that protrudes from the convex portion 24 to the inside of the hole portion 25. The stay 60 has a hollow cylindrical portion 61 at the end opposite to the pump module 30. As a result, the protrusion 28 is press-fitted into the inner peripheral side of the cylindrical portion 61 of the stay 60. That is, the stay 60 is press-fitted into the protrusion 23 on the outer peripheral side and is press-fitted into the protrusion 28 on the inner peripheral side. As a result, the stay 60 is firmly held against the lid member 20. In the third embodiment, the end of the hole 25 opposite to the pump module 30 is located in the plate portion 21 as in the first embodiment. Therefore, even when the stay 60 is press-fitted into the protruding portion 23, the plate portion 21 having a large thickness receives the force from the stay 60. Therefore, the strength of the lid member 20 can be increased, and damage to the lid member 20 can be reduced.
In the third embodiment, by pressing the stay 60 into the lid member 20, the number of steps for attaching the stay 60 and the lid member 20 can be reduced.

第４実施形態では、図５に示すようにステー６０は、軸方向の途中に小径部６２を有している。これにより、第４実施形態では、第２実施形態と同様に蓋部材２０とポンプモジュール３０との相対移動が生じたとき、その位置のずれは小径部６２の変形によって吸収される。したがって、第４実施形態では、第２実施形態と同様に蓋部材２０の損傷をさらに低減することができる。   In the fourth embodiment, as shown in FIG. 5, the stay 60 has a small diameter portion 62 in the axial direction. Thereby, in 4th Embodiment, when the relative movement of the cover member 20 and the pump module 30 arises similarly to 2nd Embodiment, the shift | offset | difference of the position is absorbed by deformation | transformation of the small diameter part 62. FIG. Therefore, in the fourth embodiment, damage to the lid member 20 can be further reduced as in the second embodiment.

（第５実施形態）
本発明の第５実施形態による燃料供給装置の要部を図６に示す。
第５実施形態では、図６に示すようにステー７０は、軸方向の全体が中空の円筒状に形成されている。ステー７０を中空状に形成することにより、ステー７０の軽量化を図ることができる。一方、蓋部材２０は、第３実施形態と同様に凸部２４から穴部２５の内側に突出する突起部２８を有している。そのため、突起部２８は、中空のステー７０の内周側に圧入される。すなわち、ステー７０は、外周側が突出部２３に圧入され、内周側が突起部２８に圧入される。その結果、ステー７０は、蓋部材２０に対し強固に保持される。第５実施形態では、穴部２５は、第１実施形態と同様にポンプモジュール３０と反対側の端部が板部２１に位置している。そのため、ステー７０を突出部２３に圧入する場合でも、ステー７０からの力は肉厚の大きな板部２１が受け止める。したがって、蓋部材２０の強度を高めることができ、蓋部材２０の損傷を低減することができる。 (Fifth embodiment)
The principal part of the fuel supply apparatus by 5th Embodiment of this invention is shown in FIG.
In the fifth embodiment, as shown in FIG. 6, the stay 70 is formed in a hollow cylindrical shape as a whole in the axial direction. By forming the stay 70 in a hollow shape, the weight of the stay 70 can be reduced. On the other hand, the lid member 20 has a protruding portion 28 that protrudes from the convex portion 24 to the inside of the hole portion 25 as in the third embodiment. Therefore, the protrusion 28 is press-fitted into the inner peripheral side of the hollow stay 70. That is, the stay 70 is press-fitted into the protrusion 23 on the outer peripheral side, and press-fitted into the protrusion 28 on the inner peripheral side. As a result, the stay 70 is firmly held against the lid member 20. In the fifth embodiment, the end of the hole 25 opposite to the pump module 30 is located in the plate portion 21 as in the first embodiment. Therefore, even when the stay 70 is press-fitted into the protruding portion 23, the plate portion 21 having a large thickness receives the force from the stay 70. Therefore, the strength of the lid member 20 can be increased, and damage to the lid member 20 can be reduced.

（その他の実施形態）
以上説明した複数の実施形態では、ポンプモジュール３０がサブタンク４０を備える構成について説明した。しかし、サブタンク４０を備えることなく、蓋部材２０およびステー５０、６０、７０が燃料ポンプ３１および燃料フィルタ３２などから構成されるポンプモジュール３０を支持する構成としてもよい。この場合、例えば燃料ポンプ３１および燃料フィルタ３２を収容するポンプケース３５に、ステー５０、６０、７０の蓋部材２０とは反対側の端部が支持される支持部を設けることができる。また、例えばサクションフィルタ３３による異物の捕集能力を向上し、燃料フィルタ３２を廃止する構成など、蓋部材２０に支持されるポンプモジュール３０の構成は任意に変更することができる。 (Other embodiments)
In the plurality of embodiments described above, the configuration in which the pump module 30 includes the sub tank 40 has been described. However, the lid member 20 and the stays 50, 60, 70 may support the pump module 30 including the fuel pump 31 and the fuel filter 32 without including the sub tank 40. In this case, for example, the pump case 35 that accommodates the fuel pump 31 and the fuel filter 32 can be provided with a support portion that supports the ends of the stays 50, 60, and 70 opposite to the lid member 20. In addition, for example, the configuration of the pump module 30 supported by the lid member 20 can be arbitrarily changed, such as a configuration in which the foreign matter collecting ability by the suction filter 33 is improved and the fuel filter 32 is eliminated.

以上のように、本発明は、上記実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の実施形態に適用可能である。   As described above, the present invention is not limited to the above-described embodiment, and can be applied to various embodiments without departing from the gist thereof.

本発明の第１実施形態による燃料供給装置の構成を示す概略図。Schematic which shows the structure of the fuel supply apparatus by 1st Embodiment of this invention. 本発明の第１実施形態による燃料供給装置の要部を拡大した断面図。Sectional drawing which expanded the principal part of the fuel supply apparatus by 1st Embodiment of this invention. 本発明の第２実施形態による燃料供給装置の要部を拡大した断面図。Sectional drawing which expanded the principal part of the fuel supply apparatus by 2nd Embodiment of this invention. 本発明の第３実施形態による燃料供給装置の要部を拡大した断面図。Sectional drawing which expanded the principal part of the fuel supply apparatus by 3rd Embodiment of this invention. 本発明の第４実施形態による燃料供給装置の要部を拡大した断面図。Sectional drawing which expanded the principal part of the fuel supply apparatus by 4th Embodiment of this invention. 本発明の第５実施形態による燃料供給装置の要部を拡大した断面図。Sectional drawing which expanded the principal part of the fuel supply apparatus by 5th Embodiment of this invention.

符号の説明Explanation of symbols

１０：燃料供給装置、２０：蓋部材、２１：板部、２２：筒部、２３：突出部、２４：凸部、２５：穴部、２８：突起部、３０：ポンプモジュール、３１：燃料ポンプ、４０：サブタンク、５０：ステー（支持部材）、１００：燃料タンク、１０２：開口   10: Fuel supply device, 20: Lid member, 21: Plate part, 22: Tube part, 23: Projection part, 24: Projection part, 25: Hole part, 28: Projection part, 30: Pump module, 31: Fuel pump 40: Sub tank, 50: Stay (support member), 100: Fuel tank, 102: Opening

Claims (4)

燃料タンクの開口部を塞ぐ蓋部材と、前記燃料タンクの内部に収容され前記燃料タンクの内部の燃料を外部へ吐出する燃料ポンプと、一方の端部が前記蓋部材に接続し他方の端部が前記燃料ポンプを支持する支持部材とを備える燃料供給装置であって、
前記蓋部材は、
前記開口部を塞ぐ円板状の板部と、
前記板部よりも外径が小さく、前記板部から前記燃料ポンプ側へ突出して前記板部と一体に設けられ、前記開口部の内側に挿入される筒部と、
前記筒部の内周側に前記板部から前記燃料ポンプ側へ突出して設けられ、内周側に一方の端部が前記燃料ポンプ側の端部に開口し他方の端部が前記板部に達して前記燃料ポンプとは反対側の端部において外周側に前記板部が存在している穴部を形成し、前記支持部材の前記燃料ポンプとは反対側の端部が圧入される筒状の突出部と、
前記板部を挟んで前記穴部の反対側に設けられ、前記板部から前記燃料ポンプとは反対側へ突出している凸部と、
を有し、
前記支持部材は、前記燃料ポンプとは反対側の端部が前記板部の前記燃料ポンプ側端面とその反対側端面との間の板厚範囲内に位置し、前記燃料ポンプとは反対側において外周側に前記板部が存在しており、
前記蓋部材と前記燃料ポンプとの間に前記蓋部材の径方向へ相対的なずれが生じたときに、前記支持部材からの力を前記板部で受け止めることを特徴とする燃料供給装置。 A lid member that closes the opening of the fuel tank; a fuel pump that is housed inside the fuel tank and discharges fuel inside the fuel tank; and one end connected to the lid member and the other end A fuel supply device comprising a support member for supporting the fuel pump,
The lid member is
A disc-shaped plate portion that closes the opening;
A cylindrical portion that is smaller in outer diameter than the plate portion, protrudes from the plate portion toward the fuel pump side, is provided integrally with the plate portion, and is inserted inside the opening portion;
Projected from the plate portion to the fuel pump side on the inner peripheral side of the cylinder portion, one end portion opens to the end portion on the fuel pump side on the inner peripheral side, and the other end portion to the plate portion a hole portion into which the plate portion is present on the outer peripheral side is formed at the end opposite to the fuel pump to reach, and the fuel pump of the support member cylindrical end portion of the opposite side is pressed Shaped protrusions,
A convex portion provided on the opposite side of the hole portion across the plate portion and protruding from the plate portion to the opposite side of the fuel pump;
Have
The support member has an end opposite to the fuel pump located within a plate thickness range between the fuel pump side end surface of the plate portion and the opposite end surface thereof, on the side opposite to the fuel pump. The plate portion exists on the outer peripheral side,
The fuel supply device according to claim 1, wherein when the relative displacement in the radial direction of the lid member occurs between the lid member and the fuel pump, the force from the support member is received by the plate portion . 前記支持部材は、前記蓋部材側の端部から前記燃料ポンプ側の端部まで外径が均一である請求項１記載の燃料供給装置。   2. The fuel supply device according to claim 1, wherein the support member has a uniform outer diameter from an end portion on the lid member side to an end portion on the fuel pump side. 前記蓋部材は、前記凸部の前記燃料ポンプ側の端部から前記穴部側の内側へ突出する突起部を有し、
前記突起部は、中空に形成された前記支持部材の内周側に圧入される請求項１または２記載の燃料供給装置。 The lid member has a protrusion that protrudes inward from the end of the protrusion on the fuel pump side to the inside of the hole.
The fuel supply device according to claim 1, wherein the protrusion is press-fitted into an inner peripheral side of the support member formed in a hollow shape. 前記突出部は、軸方向の途中に開口部を有し、当該開口部が前記穴部を形成する前記突出部の側壁を径方向に貫いており、前記開口部から前記支持部材に係止部材が取り付けられている請求項１から３のいずれか一項に記載の燃料供給装置。   The projection has an opening in the middle of the axial direction, and the opening penetrates the side wall of the projection forming the hole in the radial direction, and the locking member is connected to the support member from the opening. The fuel supply device according to any one of claims 1 to 3, to which is attached.
JP2007025372A 2007-02-05 2007-02-05 Fuel supply device Active JP4872692B2 (en)

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JP4359806B2 (en) * 2001-06-29 2009-11-11 株式会社デンソー Fuel supply device
JP2004316517A (en) * 2003-04-15 2004-11-11 Denso Corp Fuel supply device
JP4313289B2 (en) * 2004-11-24 2009-08-12 本田技研工業株式会社 Fuel tank pump module structure
US7527042B2 (en) * 2005-04-05 2009-05-05 Ti Group Automotive Systems, Llc Electrostatic charge control for in-tank fuel module components
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