JP2019019723A - Fuel supply device - Google Patents

Abstract

To provide a fuel supply device for reliably preventing the fall-off of a pressure regulator from a housing in a simple construction.SOLUTION: A housing 54 constituting a fuel supply device 10 has a first holding part 64 capable of holding a fuel pump 20, and a second holding part 66 capable of holding a pressure regulator 80. To the other end of the housing 54, an end block 56 is connected via a snap fit mechanism 58. The end block 56 abuts on the outer edge of the pressure regulator 80, and a guide plate 102 is provided, in a lead-out hole 100 communicated with the pressure regulator 80, for deflecting fuel to be discharged to the side of a filter 24. The housing 54 and the end block 56 are connected to each other, so that the fall-off in the axial direction of the pressure regulator 80 is prevented by the end block 56.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fuel supply device for supplying fuel from a fuel tank of a vehicle to an internal combustion engine.

  2. Description of the Related Art Conventionally, there is known a fuel supply device that supplies fuel to an internal combustion engine by sucking and pressurizing fuel in a fuel tank mounted on a vehicle with a fuel pump and then discharging the fuel.

  The present applicant has proposed a pressure regulating valve device that depressurizes the fuel to a predetermined pressure when the fuel pressurized by the fuel pump of the fuel supply device described above exceeds a predetermined pressure (see Patent Document 1). ).

  In this pressure regulating valve device, a valve retainer and a valve body are movably provided inside a valve housing, and the valve body is urged upward by a pressure regulating spring and is seated on a valve seat member. As the fuel pressure in the fuel passage increases, the valve body opens away from the valve seat member against the elastic force of the pressure regulating spring, and the fuel in the fuel passage communicating with the valve housing is fueled. By discharging into the tank, the pressure in the fuel passage is maintained at a predetermined pressure.

  Further, the pressure regulating valve device is press-fitted into the holding hole of the base member in which the fuel passage is formed, and heats caulked a protruding wall protruding downward from the valve housing to form a caulking portion, thereby forming an end of the valve housing. Holding the department.

Japanese Patent Laying-Open No. 2015-94346

  The present invention has been made in connection with the above proposal, and an object of the present invention is to provide a fuel supply device that can reliably prevent the pressure regulator from falling off the housing with a simple configuration.

In order to achieve the above object, the present invention includes a fuel pump that is disposed in a fuel tank and sucks the fuel in the fuel tank and discharges the fuel outside, and a filter connected to the suction port of the fuel pump. In the fuel supply device
The fuel supply device includes first and second housings connected along the axial direction of the fuel pump;
A pressure regulator that is stored in the first housing and discharges surplus of the fuel discharged from the fuel pump into the fuel tank;
A locking portion that is provided in the second housing and restricts movement of the pressure regulator in the axial direction;
With
The first and second housings are sandwiched and connected from both ends along the axial direction of the fuel pump so that the fuel pump is held in the first and second housings, and the first housing and the second housing The housing is connected by a snap-fit mechanism in which a concave portion provided on the outer periphery of one housing and a convex portion provided on the other housing engage with each other.

  According to the present invention, a pressure regulator for discharging surplus fuel out of the fuel discharged from the fuel pump into the fuel tank is housed in the first housing constituting the fuel supply device, and the pressure regulator is housed in the second housing. The first housing and the second housing are provided on the outer periphery of one housing in a state where the fuel pump is sandwiched from both ends along the axial direction. The recessed portion formed and the convex portion provided on the other housing are connected by a snap fit mechanism.

  Therefore, with a simple configuration in which the first housing and the second housing are connected by the snap-fit mechanism, the pressure pump is reliably prevented from falling off the housing by the locking portion while holding the fuel pump in the housing. It becomes possible.

  Further, by providing the second housing with a suction passage that connects the suction port of the fuel pump and the filter, the fuel pump can be held and the pressure regulator can be prevented from falling off in the second housing. Since the suction passage connecting the filter and the filter can be configured, each function can be realized by a single housing, compared to the case where each function is realized by a separate member, so that downsizing and reduction in the number of assembly steps can be achieved.

  Furthermore, a guide plate for deflecting the fuel discharged from the pressure regulator to the filter side may be provided in the second housing. Thus, by guiding the fuel discharged from the pressure regulator to the filter side by the guide plate, the excess fuel can be discharged to the filter side, and the filter can be maintained in a state immersed in the fuel. Therefore, for example, even when the fuel level in the fuel tank becomes low, the fuel can be sucked up for a long time by the fuel pump. In addition, by providing the guide plate integrally with the housing, it is possible to reduce the size and the number of parts as compared with the case where the guide plate is used as a separate member, thereby reducing the number of assembly steps. .

  Furthermore, the guide plate may have a tapered surface inclined toward the filter side in the fuel discharge direction by the pressure regulator.

  According to the present invention, the following effects can be obtained.

  That is, the pressure regulator is housed in the first housing constituting the fuel supply device, and the second housing is provided with a locking portion for restricting the movement of the pressure regulator in the axial direction. With a snap-fit mechanism in which a recess provided on the outer periphery of one housing and a projection provided on the other housing engage with each other in a state where the fuel pump is sandwiched from both ends along the axial direction. Connected. Thus, with a simple configuration in which the first housing and the second housing are connected by the snap-fit mechanism, the fuel pump is held in the housing and the pressure regulator is prevented from falling off by the locking portion. As a result, the number of assembly steps of the fuel supply device can be reduced.

It is a partial cross section whole front view of the fuel supply apparatus which concerns on embodiment of this invention. It is a disassembled perspective view of the fuel supply apparatus shown in FIG. It is a side view of the fuel supply apparatus shown in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3.

  Preferred embodiments of the fuel supply apparatus according to the present invention will be described below and described in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a fuel supply apparatus according to an embodiment of the present invention. Hereinafter, as shown in FIG. 1, the traveling direction of the vehicle will be described as the front (arrow A direction), and the opposite direction will be described as the rear (arrow B direction).

  The fuel supply device 10 is mounted on, for example, a fuel tank 12 of a motorcycle that is a saddle-ride type vehicle, and the bottom of the fuel supply device 10 is opened through an opening 16 that is opened in one bottom wall 14 divided into two. Mounted on the wall 14.

  As shown in FIGS. 1 to 4, the fuel supply device 10 includes a lid member 18 fixed to the bottom wall 14 of the fuel tank 12, and a pump module 22 including a fuel pump 20 provided on the lid member 18. And a filter 24 connected to the pump module 22.

  The lid member 18 includes, for example, a base portion 26 that covers the opening 16 of the fuel tank 12, a holder portion 28 that protrudes upward from the upper surface of the base portion 26, and a terminal connection portion 30 adjacent to the holder portion 28. The connector part 32 and the discharge pipe 34 provided on the lower surface side of the base part 26 are included. The lid member 18 is provided so that the holder portion 28 and the terminal connection portion 30 are accommodated in the fuel tank 12, and the base portion 26, the connector portion 32, and the discharge pipe 34 are outside the fuel tank 12. (See FIG. 1).

  The base portion 26 is formed, for example, in a plate shape with a constant thickness, and is formed in a long oval shape along the longitudinal direction (arrow A, B direction) that is the front-rear direction of the vehicle, and the fuel tank 12. The area is larger than the opening 16 (see FIG. 4). The base portion 26 is provided so that the upper surface thereof contacts the outside of the bottom wall 14 of the fuel tank 12.

  The holder portion 28 has an annular holding wall 36 that is disposed offset from the center of the base portion 26 toward the front side (in the direction of arrow A) along the longitudinal direction and protrudes upward by a predetermined height. The holding wall 36 is divided by a plurality of grooves provided at equal intervals along the circumferential direction, and a housing 54 of the pump module 22 described later is inserted and held therein. A communication hole (not shown) that penetrates the base portion 26 and communicates with the discharge pipe 34 is formed in the approximate center of the holder portion 28.

  The terminal connection portion 30 is, for example, rectangular in cross section and protrudes upward from the base portion 26 in the same manner as the holder portion 28, and from the center of the base portion 26 to the outside in the width direction (in the direction of arrow C1 in FIG. 4). It is arranged with an offset. When the pump module 22 is attached to the lid member 18, the terminal connection portion 30 is disposed so as to be substantially parallel to the side thereof.

  In addition, the terminal connecting portion 30 has three terminal holes 38 separated along the longitudinal direction (arrow A, B direction) of the base portion 26, and a lead wire 40 connected to the fuel pump 20 described later. Each is inserted and electrically connected to a terminal piece (not shown) housed therein.

  The connector portion 32 is provided at a position that is substantially aligned with the terminal connection portion 30 across the base portion 26, and is formed so as to protrude downward from the lower surface of the base portion 26. A part of the terminal piece accommodated in the terminal connection part 30 is exposed. Then, a coupler connected to a controller (not shown) is connected to the connector portion 32 so as to be electrically connected to the lead wire 40 and the terminal piece of the fuel pump 20.

  The discharge pipe 34 is provided on the lower surface of the base portion 26 at a position that is substantially in line with the holder portion 28, and protrudes downward and communicates with the pump module 22 through a communication hole (not shown), and the extraction pipe 42. It consists of the tubular discharge part 44 extended from the peripheral surface of the part 42 to the width direction inner side (arrow C2 direction). A fuel tube 46 (see FIGS. 3 and 4) is connected to an end of the discharge portion 44 via a connection member (not shown).

  As shown in FIG. 1, the cover member 18 has a holder portion 28 and a terminal connection portion 30 accommodated in the fuel tank 12 through the opening portion 16, and an outer edge portion of the base portion 26 is located on the fuel tank 12. In a state of being in contact with the bottom wall 14, the bolt portion 50 erected downward from the bottom wall 14 is inserted into the retainer 48 that is in contact with the outer edge portion, and the nut 52 is screwed together. Accordingly, the lid member 18 is sandwiched between the retainer 48 and the bottom wall 14 and is fixed in a state where the opening 16 is closed.

  As shown in FIGS. 1 to 4, the pump module 22 is provided so as to be housed inside the fuel tank 12, and a housing (first housing) 54 whose one end is held with respect to the lid member 18. An end block (second housing) 56 connected to the other end of the housing 54, a snap-fit mechanism 58 connecting the housing 54 and the end block 56, and a fuel pump housed in the housing 54 The filter 24 is connected to the other end of the end block 56.

  The housing 54 includes a main body portion 60 extending along the longitudinal direction (arrows A and B directions), and a connection portion 62 formed at one end portion of the main body portion 60 and extending in a vertical direction perpendicular to the longitudinal direction. have.

  The main body portion 60 includes a first holding portion 64 that holds the fuel pump 20 substantially horizontally, and a second holding portion 66 that is provided on the upper portion of the first holding portion 64 and that stores the pressure regulator 80. .

  The first holding portion 64 includes a pair of first arms 68a and 68b extending horizontally from the connecting portion 62 toward the end block 56 side (arrow B direction). The first arms 68a and 68b are provided so as to face each other in an arc shape in cross section, and the fuel pump 20 is inserted therebetween to hold the outer peripheral surface and hold it substantially horizontally.

  Also, one first arm 68a on the lid member 18 side protrudes toward the filter 24 (in the direction of arrow B) from the other first arm 68b provided on the upper side. As shown in FIG. 2 and FIG. 3, a slit 70 is provided at the center of the width direction at the tip of the first arm 68 a and extends along the longitudinal direction, and on both sides in the width direction across the slit 70. A pair of snap holes 72 are formed in a rectangular cross section. The distal end side of the first arm 68 a is formed so as to be slightly tiltable in the vertical direction through the slit 70.

  As shown in FIG. 1, a first fuel passage 74 that communicates from one end of the first arms 68a and 68b to the connecting portion 62 is formed in the first holding portion 64 along a substantially horizontal direction. The connecting portion 62 communicates with the third fuel passage 92.

  The second holding portion 66 has a second fuel passage 76 that is provided at the upper portion of the other first arm 68b and extends along the longitudinal direction. The second fuel passage 76 is on one end side (arrow A). The one end portion communicates with a third fuel passage 92 of the connecting portion 62 described later.

  In addition, a storage hole 78 is formed at the other end of the second fuel passage 76 so as to expand the diameter of the second fuel passage 76, and the pressure regulator 80 is stored inside. As a result, the other end of the second fuel passage 76 is closed by the pressure regulator 80. The pressure regulator 80 has a valve body (not shown) that can be freely opened and closed. When the fuel pressure in the second fuel passage 76 exceeds a predetermined pressure, the pressure regulator 80 opens the valve body to supply the fuel. The second fuel passage 76 is circulated outside.

  Further, a second arm 82 is formed at the other end portion of the second holding portion 66 so as to protrude further rearward (in the direction of arrow B) than the end portion of the storage hole 78. The first arm 68a extends to substantially the same position along the longitudinal direction, and is formed in a circular arc shape in the same manner as the first arm 68a. That is, the second arm 82 and the first arm 68a have an arcuate cross section that is separated in the vertical direction so as to be symmetrical.

  Further, as shown in FIGS. 2 and 3, a slit 84 is provided at the center of the width direction at the tip of the second arm 82 and extends along the longitudinal direction, and both sides in the width direction sandwiching the slit 84. A pair of snap holes 86 are formed in a rectangular cross section (in the directions of arrows C1 and C2). That is, the tip of the first arm 68a and the tip of the second arm 82 are formed in substantially the same shape. The distal end side of the second arm 82 is formed so as to be slightly tiltable in the vertical direction through the slit 84.

  As shown in FIGS. 1 to 4, the connecting portion 62 is formed in a cylindrical shape so as to protrude downward with respect to one end portion of the main body portion 60, and is inserted into the holder portion 28 of the lid member 18. The As shown in FIG. 1, the connection portion 62 has a claw portion 88 formed on the outer peripheral surface thereof engaged with the engagement hole 90 of the holding wall 36, whereby the housing 54 is interposed via the holder portion 28. And fixed to the upper part of the lid member 18.

  Further, a third fuel passage 92 extending along the axial direction is formed inside the connecting portion 62, and the third fuel passage 92 is connected to a discharge port 122 of the fuel pump 20 described later through the first fuel passage 74. While being connected, the upper end portion communicates with the pressure regulator 80 through the second fuel passage 76. Further, the lower end portion of the third fuel passage 92 is connected to and communicates with the discharge pipe 34 via a communication hole (not shown) of the base portion 26.

  The end block 56 is provided so as to cover the other end portion of the housing 54, and a block main body 94 connected to the housing 54 and a passage portion 96 extending from the block main body 94 to the rear side (arrow B direction). Including.

  The block body 94 is formed, for example, in a substantially oval cross section that is elongated along a vertical direction orthogonal to the longitudinal direction (see FIG. 2), and faces the first and second holding portions 64 and 66 of the housing 54. Is provided. A fitting hole 98 (see FIG. 1) into which the suction port 120 of the fuel pump 20 is fitted is formed at one end of the block main body 94 facing the first holding part 64.

  In addition, a lead-out hole 100 that faces the pressure regulator 80 and the storage hole 78 is formed at one end of the block main body 94 that faces the second holding portion 66.

  As shown in FIGS. 1 and 4, the outlet hole 100 is formed with a smaller diameter than the storage hole 78, so that one end portion of the end block 56 that becomes the outer edge portion 100 a of the outlet hole 100 is a pressure regulator 80. Is restricted against movement in the axial direction (arrow B direction). That is, the outer edge portion 100 a of the outlet hole 100 in the end block 56 functions as a locking portion that restricts the pressure regulator 80 from falling off from the storage hole 78.

  On the other hand, as shown in FIGS. 1 to 4, the other end portion of the outlet hole 100 is provided with a guide plate 102 that covers a part of the opening, and this guide plate 102 extends in the vertical direction. The inner peripheral surfaces of the lead-out holes 100 are formed so as to be connected to each other, and are arranged slightly offset inward in the width direction (arrow C2 direction) from the center.

  Further, as shown in FIG. 4, the guide plate 102 gradually inclines outward in the width direction (arrow C1 direction) toward the other end side (arrow B direction) along the longitudinal direction on the filter 24 side. And has a tapered surface 104 that faces the axis of the outlet hole 100.

  Further, a lower portion of one end portion of the block main body 94 has a pair of first insertion holes 106 through which one first arm 68a is inserted, and the first insertion holes 106 are long along the width direction. It is formed in a rectangular cross section, and is arranged so as to be symmetrical in the width direction (arrow C1, C2 direction) from the center of the width of the block body 94 and penetrates in the longitudinal direction.

  Further, a pair of engaging claws 110a are provided on the outer peripheral surface of the other end of the block main body 94 facing the first insertion hole 106. The engaging claws 110a constitute a snap fit mechanism 58 and project downward. ing.

  On the other hand, a pair of second insertion holes 108 through which the second arm 82 is inserted are provided in the upper part of one end of the block main body 94, and the second insertion holes 108 are arranged in the width direction in the same manner as the first insertion holes 106. Are formed so as to be symmetrical in the width direction (arrow C1, C2 direction) from the center of the width of the block body 94 and penetrate in the longitudinal direction.

  Further, a pair of engaging claws 110b are provided on the outer peripheral surface of the other end of the block main body 94 facing the second insertion hole 108. The engaging claws 110b constitute a snap fit mechanism 58 and project upward. ing.

  The passage portion 96 is formed from the center in the vertical direction to the lower portion of the block main body 94 and extends rearward (in the direction of arrow B), and a suction passage 112 is formed therein. As shown in FIG. 1, the suction passage 112 extends straight from the fitting hole 98 to the rear side (arrow B direction) along the longitudinal direction, and then bends and extends to the filter 24 side. The cross section is formed in a substantially L shape. The filter 24 is connected to an end portion of the suction passage 112 on the filter 24 side (arrow C1 direction) via an attachment 126 described later.

  The snap fit mechanism 58 includes two pairs of engaging claws 110a protruding from the outer peripheral surface of the other end of the end block 56 and the two pairs of snap holes 72 and 86 of the first and second arms 68a and 82 provided in the housing 54. 110b. The first and second arms 68a and 82 are inserted into the first and second insertion holes 106 and 108, respectively, and their tips protrude rearward from the first and second insertion holes 106 and 108. The engaging claws 110a and 110b are inserted into and engaged with the holes 72 and 86, respectively, so that the first and second arms 68a and 82 with respect to the end block 56 in the longitudinal direction (axial direction, arrows A and B directions). The relative movement is restricted, and the housing 54 and the end block 56 are connected in a state of being arranged in a straight line in the longitudinal direction.

  The first and second arms 68a and 82 tilt slightly in a direction away from the outer peripheral surface of the block main body 94 when the tips of the first and second arms 68a and 110b get over the engaging claws 110a and 110b, and then move to the snap holes 72 and 86. The engaging claws 110a and 110b are inserted and engaged.

  At this time, as shown in FIG. 1, the first and second arms 68 a and 82 come into contact with the inner peripheral surfaces of the first and second insertion holes 106 and 108, and the tilting operation is restricted. The engagement state of the engagement claws 110a and 110b with respect to the snap holes 72 and 86 is prevented from being released, and the connection state between the housing 54 and the end block 56 is maintained.

  As shown in FIG. 1, the fuel pump 20 is held substantially horizontally with respect to the housing 54 so that the axis thereof is substantially parallel to the base portion 26 of the lid member 18, and the rear side with respect to the lid member 18. It is provided to be offset in the direction of arrow B. In addition, the fuel pump 20 includes a pump unit 114 and a motor unit 116 that drives the pump unit 114 under energization, and the pump unit 114 and the motor unit 116 are along the axial direction (directions of arrows A and B). It is arranged in a straight line and stored in a cylindrical case 118. For example, a brushless motor is employed as the motor unit 116.

  The fuel pump 20 is provided such that a part of the case 118 is exposed from the first holding part 64 to the outside, the motor part 116 is provided on the front side (in the direction of arrow A), and the pump part 114 is provided. It is provided to face the end block 56 on the rear side (arrow B direction).

  A suction port 120 provided in the pump unit 114 for sucking fuel is inserted into the fitting hole 98 of the end block 56, and a discharge port 122 (see FIG. 5) provided at the end of the motor unit 116 for discharging the fuel. 2) is connected to the first fuel passage 74 of the housing 54.

  Further, in the fuel pump 20, a plurality of lead wires 40 connected to the motor part 116 are taken out from the case 118 to the outside, and electrically connected to a terminal piece (not shown) of the terminal connection part 30 in the lid member 18. Connected to. As a result, the fuel pump 20 is electrically connected to the connector portion 32 disposed outside the fuel tank 12, and a coupler connected to a controller (not shown) is connected to the connector portion 32 so as to be inputted. The fuel pump 20 is driven and controlled based on the control signal.

  The filter 24 is provided for the purpose of removing impurities contained in the fuel. For example, the filter 24 is provided along the front-rear direction (arrow A, B direction) of the vehicle and has a thickness that becomes the width direction (arrow C1, C2 direction). It is formed in a small bag shape. The filter 24 has a pair of flat portions 124 on both side surfaces in the width direction. An attachment 126 is provided on one flat surface portion 124 on the end block 56 side.

  As shown in FIG. 1, the attachment 126 has a hole portion 128 in the center, is joined to the flat surface portion 124 of the filter 24, communicates with the inside of the filter 24, and is connected to the suction passage 112 of the end block 56. As a result, the suction passage 112 of the end block 56 and the filter 24 communicate with each other via the attachment 126.

  The fuel supply apparatus 10 according to the embodiment of the present invention is basically configured as described above. Next, the operation and effects thereof will be described.

  First, a control signal from a controller (not shown) is input from the coupler to the motor unit 116 of the fuel pump 20 from the lead wire 40 through the connector unit 32 and the terminal connection unit 30 of the lid member 18. The pump unit 114 is driven to rotate. As a result, the fuel stored in the fuel tank 12 (not shown) passes through the filter 24, flows through the attachment 126 and the suction passage 112 of the end block 56, and is sucked into the fuel pump 20 through the suction port 120. The

  The fuel sucked into the fuel pump 20 is discharged from the discharge port 122 to the first fuel passage 74 of the housing 54 under the driving action of the pump unit 114, and then discharged from the discharge pipe 34 of the lid member 18. 44 to the fuel tube 46. Thereafter, fuel is supplied to the injector of the internal combustion engine through the fuel tube 46.

  The surplus fuel supplied from the first fuel passage 74 to the second fuel passage 76 is supplied to the pressure regulator 80 through the third fuel passage 92 connected to the second fuel passage 76, and this pressure is supplied. When the regulator 80 is opened by the fuel pressure, the fuel passes through the pressure regulator 80 and is discharged from the outlet hole 100 into the fuel tank 12. At this time, as shown in FIG. 4, the fuel is deflected outward in the width direction (in the direction of arrow C <b> 1) by the guide plate 102 provided in the outlet hole 100, and discharged toward the filter 24.

  As described above, in the present embodiment, in the pump module 22 constituting the fuel supply device 10, the housing 54 in which the fuel pump 20 and the pressure regulator 80 are housed, and the end connected to the other end of the housing 54. A block 56, and the pressure regulator 80 is housed in the housing hole 78 of the housing 54, and the end block 56 is disposed so as to contact the outer edge of the pressure regulator 80, and the housing 54 and the end The blocks 56 are connected to each other by a snap fit mechanism 58.

  Therefore, the housing 54 and the end block 56 are simply connected by the snap-fit mechanism 58, and the fuel pump 20 is held in the housing 54, and the pressure regulator 80 is reliably prevented from falling off the housing 54. Therefore, it is possible to reduce the number of assembling steps of the fuel supply device 10 as compared with the case where each is performed in a separate assembling process.

  Further, the end block 56 is provided so as to be connected to the other end portion of the housing 54 in which the fuel pump 20 and the pressure regulator 80 are housed, so that the fuel pump 20 is held and the pressure regulator 80 is prevented from falling off. At the same time, the suction passage 112 connecting the fuel pump 20 and the filter 24 can be configured. Therefore, as compared with the case where each function is realized by a separate member, the function can be realized by a single end block 56, so that it is possible to reduce the size and the number of assembly steps.

  Furthermore, the guide hole 102 that is offset inward in the width direction (arrow C2 direction) and has a tapered surface 104 on the outer side in the width direction (arrow C1 direction) is provided in the outlet hole 100 of the end block 56. The fuel discharged from the pressure regulator 80 can be suitably guided to the filter 24 side by the tapered surface 104 of the guide plate 102. Therefore, surplus fuel can be discharged to the filter 24 side and the filter 24 can be maintained in a state immersed in the fuel. For example, even when the fuel level in the fuel tank 12 becomes low, the fuel pump 20 makes it possible to suck up fuel over a long period of time.

  Further, by providing the guide plate 102 integrally with the end block 56, it is possible to reduce the size and the number of parts compared to the case where the guide plate 102 is a separate member, thereby reducing the number of assembly steps. Can be planned.

  In addition, the fuel supply device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Fuel supply apparatus 12 ... Fuel tank 14 ... Bottom wall 16 ... Opening part 18 ... Cover member 20 ... Fuel pump 22 ... Pump module 24 ... Filter 54 ... Housing 56 ... End block 58 ... Snap fitting mechanism 64 ... 1st holding part 66 ... 2nd holding | maintenance part 68a, 68b ... 1st arm 72, 86 ... Snap hole 78 ... Storage hole 80 ... Pressure regulator 82 ... 2nd arm 94 ... Block main body 96 ... Channel | path part 100 ... Derivation hole 102 ... Guide plate 104 ... Tapered surface 106 ... first insertion hole 108 ... second insertion hole 110a, 110b ... engaging claw

Claims (4)

A fuel supply device comprising a fuel pump that is disposed in a fuel tank and sucks the fuel in the fuel tank and discharges the fuel outside, and a filter connected to the suction port of the fuel pump.
The fuel supply device includes first and second housings connected along the axial direction of the fuel pump;
A pressure regulator that is housed in the first housing and discharges surplus fuel out of the fuel pump into the fuel tank;
A locking portion provided in the second housing and restricting movement of the pressure regulator in an axial direction;
With
The first and second housings are sandwiched and connected from both ends along the axial direction of the fuel pump, whereby the fuel pump is held in the first and second housings, and the first And the second housing are connected by a snap-fit mechanism in which a recess provided on the outer periphery of one housing engages with a protrusion provided on the other housing. Feeding device. The fuel supply device according to claim 1, wherein
The fuel supply device, wherein the second housing includes a suction passage that connects a suction port of the fuel pump and the filter. The fuel supply device according to claim 1 or 2,
The fuel supply apparatus according to claim 1, wherein the second housing includes a guide plate that deflects the fuel discharged from the pressure regulator toward the filter. The fuel supply device according to claim 3, wherein
The fuel supply device according to claim 1, wherein the guide plate has a tapered surface inclined toward the filter side in a discharge direction of the fuel by the pressure regulator.

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