JP2006037897A - Intake device for vehicle engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily adjust an idle opening of a throttle body stored inside a cleaner case by operation outside the cleaner case without requiring a dedicated member for mounting an idle adjustment screw, in an intake device for a vehicle engine provided with an air cleaner which stores a cleaner element for filtering air flowing from a non-purifying chamber to a purifying chamber and with the throttle body which controls amount of air supplied from the purifying chamber to a cylinder head, inside the cleaner case inside of which is partitioned into the non-purifying chamber and the purifying chamber. <P>SOLUTION: The throttle body 48 is stored inside the cleaner case 50, and the idle adjustment screw 119 for adjusting the idle opening of a throttle valve 61 provided in the throttle body 48 is rotatably mounted on a side wall of the cleaner case 50 so as to enable rotating operation outside the cleaner case 50. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides an air cleaner in which a cleaner element for filtering air flowing from the unpurified chamber to the purifying chamber is housed in a cleaner case that is partitioned into an unpurified chamber and a purifying chamber, and from the purifying chamber to the cylinder head. The present invention relates to an intake device for a vehicle engine including a throttle body that controls the amount of air supplied.

The throttle body and the carburetor generally have a function of adjusting the idle opening of the throttle valve. In the one disclosed in Patent Document 1, a pair of left and right main frames included in a body frame of a motorcycle is provided. The idle adjustment screw is directly attached to the vaporizer disposed in the cylinder, and the idle adjustment screw is rotated by a driver inserted into a through hole provided in each of the main frames.
JP-A-6-316285

  By the way, the throttle body may be housed in the cleaner case of the air cleaner. In such a case, in the configuration in which the idle adjustment screw is directly attached to the throttle body as described above, the throttle case lid is removed to remove the throttle body. The idle opening of the valve was adjusted. In this case, for example, it is difficult to adjust the idle opening while the driver is on the vehicle.

  The present invention has been made in view of such circumstances, and the idle opening of the throttle body accommodated in the cleaner case of the air cleaner can be set outside the cleaner case while eliminating the need for a dedicated member for mounting the idle adjustment screw. It is a first object of the present invention to provide a vehicle engine intake device that can be easily adjusted by the above operation.

  In addition, when an injector is attached to the throttle body, the injector is also accommodated in the cleaner case, and electrical connection to and disconnection from the injector can be easily performed without opening the cleaner case. It is desirable to be able to do so.

  The present invention has been made in view of such circumstances, and the electrical connection to and disconnection from the electrical components housed in the cleaner case of the air cleaner can be easily performed by the operation outside the cleaner case. A second object of the present invention is to provide a vehicular engine intake device.

  In order to achieve the first object, the invention according to claim 1 is a cleaner for filtering air flowing from the unpurified chamber to the purifier chamber in a cleaner case having an interior defined by the unpurified chamber and the purifier chamber. An air intake device for a vehicle engine comprising an air cleaner in which an element is accommodated and a throttle body that controls an amount of air supplied from the purification chamber to a cylinder head. The throttle body is accommodated in the cleaner case, and the throttle An idle adjustment screw for adjusting an idle opening degree of a throttle valve provided in a body is rotatably attached to a side wall of the cleaner case so that the idle adjustment screw can be rotated outside the cleaner case. To do.

  In order to achieve the second object, the invention according to claim 2 filters the air flowing from the unpurified chamber to the purifier chamber in a cleaner case whose interior is partitioned into the unpurified chamber and the purifier chamber. An air intake apparatus for a vehicle engine comprising an air cleaner in which a cleaner element is accommodated, and a throttle body that controls an amount of air supplied from the purification chamber to a cylinder head. In the cleaner case, the throttle body and the throttle An electrical component including an injector attached to an intake pipe downstream of the body or the throttle body, and an electrical component side coupler electrically connected to the electrical component, and an external conductor side coupler connected to an external conductor to the cleaner Attached to the outer surface of the side wall of the cleaner case so that it can be detachably connected outside the case Characterized in that it is.

  According to the first aspect of the present invention, the operation sound of the throttle body is insulated by suppressing the operation sound of the throttle body from leaking out of the cleaner case with a simple structure that only accommodates the throttle body in the cleaner case. Therefore, it is not necessary to separately provide protection means against mud, dust, rainwater, etc., and the capacity of the air cleaner can be increased efficiently. In addition, the idle adjustment screw for adjusting the idle opening of the throttle valve can be rotated on the outside of the cleaner case and is pivotally attached to the side wall of the cleaner case. The idle opening of the throttle valve can be easily adjusted. Moreover, there is no need for an idle adjusting screw mounting stay or the like, and the number of parts can be reduced and the apparatus can be made compact while increasing the capacity of the air cleaner.

  According to the second aspect of the present invention, the operation sound of the throttle body is insulated by suppressing the operation sound of the throttle body from leaking outside the cleaner case with a simple structure in which the throttle body is only accommodated in the cleaner case. In addition, it is not necessary to separately provide protection means against mud, dust, rainwater, etc., and the capacity of the air cleaner can be increased efficiently. In addition, since the injector attached to the throttle body or the intake pipe is also housed in the cleaner case, the operation sound of the injector can be insulated by the cleaner case. In addition, the electrical connection and disconnection operation of the external conductors to the electrical components including the injector can be easily performed outside the cleaner case.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

  1 to 4 show a first embodiment of the present invention. FIG. 1 is a side view of a motorcycle, FIG. 2 is an enlarged vertical side view in the vicinity of an air cleaner, and FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 4 and 4 are sectional views taken along line 4-4 of FIG.

  In FIG. 1, a motorcycle body frame FA includes a head pipe 12 that supports a front fork 11 that pivotally supports a front wheel WF, and a pair of left and right main frames 13 that extend rearward and downward from the head pipe 12. ..., a pair of left and right engine hangers 14 welded to the front part of the head pipe 12 and both main frames 13 ... and extending downward from the main frame 13 ..., and a pair of left and right pivots extending downward from the rear part of the main frame 13 ... Plate 15 and a rear frame 16 extending rearward and connected to the rear portions of the main frames 13.

  A multi-cylinder configured in a V shape with a front bank BF and a rear bank BR at the lower part of the engine hangers 14, the intermediate part of the main frame 13, and the upper and lower parts of the pivot plate 15, for example. A 5-cylinder engine body 17 is supported.

  A front end portion of a swing arm 18 is swingably supported via a support shaft 19 at an intermediate portion in the vertical direction of the pivot plates 15. The axle of the rear wheel WR is supported on the rear end portion of the swing arm 18. 20 is rotatably supported.

  The power from the output shaft 21 of the transmission built in the engine body 17 is transmitted to the rear wheel WR via the chain transmission means 22, and the chain transmission means 22 is fixed to the output shaft 20. Drive sprocket 23, driven sprocket 24 fixed to the rear wheel WR, and endless chain 25 wound around the sprockets 23, 24.

  An upper end portion of a rear cushion unit 26 is connected to the front portion of the swing arm 18, and a lower end portion of the rear cushion unit 26 is connected to lower portions of the pivot plates 15 through a link mechanism 27. The

  An air cleaner 29 is disposed above the cylinder heads 28F, 28R in the front and rear banks BF, BR of the engine body 17, and a fuel tank 30 covering the engine body 17 from above is provided behind the air cleaner 29 from the rear frame. 16 is supported. A main seat 31 for seating a rider is supported on the rear frame 16 behind the fuel tank 30, and a pillion seat 32 for carrying a passenger is rearwardly separated from the main seat 31. 16 is supported.

  The first individual exhaust pipes 33F connected to the cylinder head 28F of the front bank BF for each cylinder extend below the engine body 17 to the rear wheel WR side, and the first individual exhaust pipes 33F. Commonly connected to the exhaust pipe 34F. The rear frame 16 supports a first exhaust muffler 35F disposed on the upper right side of the rear wheel WR, and the downstream end of the first collective exhaust pipe 34F is connected to the first exhaust muffler 35F. The second individual exhaust pipes 33R connected to the cylinder head 28R of the rear bank BR for each cylinder extend rearward through the upper portion of the rear cushion unit 26, and the second individual exhaust pipes 33R ... are second collective exhaust. Commonly connected to the pipe 34R. A second exhaust muffler 35R supported by the rear frame 16 is disposed below the pillion seat 32, and a downstream end of the second collective exhaust pipe 34R is connected to the second exhaust muffler 35R.

  By the way, the front of the head pipe 12 is covered with a front cowl 36 made of synthetic resin, and both sides of the front part of the vehicle body are covered with a synthetic resin center cowl 37 connected to the front cowl 36, and a part of the engine body 17 and Synthetic resin lower cowl 38, which covers the first individual exhaust pipes 33F connected to the cylinder head 28F of the front bank BF from both sides, is connected to the center cowl 37. The rear part of the rear frame 16 is covered with a rear cowl 39 together with the second exhaust muffler 35R, the fuel tank 30 and the air cleaner 29 are covered with a cover 40, and a front fender 41 covering the upper part of the front wheel WF is attached to the front fork 11. Mounted.

  2 and 3, straight lines are provided on the upper side walls of the cylinder heads 28F and 28R in both banks BF and BR of the engine body 17 so as to guide the purified air from the air cleaner 29 above the cylinder heads 28F and 28R. An intake passage 45 extending in a shape is connected to each cylinder.

  The intake passage portion 45 has an insulator 46 connected to the upper side walls of the cylinder heads 28F and 28R, an intake pipe 47 whose downstream end is connected to the insulator 46, and a downstream end connected to the upstream end of the intake pipe 47. A throttle body 48 and an air funnel 49 connected to the upstream end of the throttle body 48. Each of the intake pipes 47, each throttle body 48, and each air funnel 49 is provided with a cleaner case 50 of the air cleaner 29. Housed inside.

  The air cleaner 29 is configured by housing a cleaner element 53 for filtering the air flowing from the non-purification chamber 51 to the purification chamber 52 in a cleaner case 50 that is partitioned into an unpurification chamber 51 and a purification chamber 52. The intake pipe 47, the throttle body 48, and the air funnel 49 of the intake passage portion 45 are accommodated in the purification chamber 52 of the cleaner case 50.

  In the cleaner case 50, first, second, and third case members 54, 55, 56 made of synthetic resin are coupled to each other so that the second case member 55 is sandwiched between the first and third case members 54, 56. The first and third case members 54 and 56 are formed in a bowl shape having openings facing each other, and the second case member 55 is an opening of the first and third case members 54 and 56. It is formed in a cylindrical shape so as to connect the ends.

  Between the coupling ends of the second and third case members 55 and 56, the entire peripheral edge portion of the partition plate 57 made of synthetic resin is airtightly sandwiched, and the cleaner case 50 is unpurified by the partition plate 57. It is divided into a chamber 51 and a purification chamber 52. Moreover, the support frame 71 of the cleaner element 53 is attached to the partition plate 57 so as to face the opening 58 provided in the partition plate 57. Accordingly, the first and second case members 54 and 55 are connected to each other, but the third case member 56 is removed, and the cleaner element 53 having the support frame 71 attached to the partition plate 57 is attached to the first and second case members. By inserting the third case member 56 into the second case member 55 so as to cover the cleaner element 53 and the partition plate 57, the cleaner case 50 is configured and the cleaner element 53 is inserted into the case members 54 and 55. Is supported by the cleaner case 50.

  The first case members 54 are supported by the insulators 46 of the intake passage portions 45, and are ring-shaped interposed between the intake pipes 47 of the intake passage portions 45 and the cylinder heads 28F and 28R, respectively. The first case member 54 is supported by each of the insulators 46 by sandwiching the insulators 46 between the cylinder heads 28F and 28R and fastening the intake pipes 47 to the cylinder heads 28F and 28R. Thus, the throttle bodies 48 are accommodated in the unpurified chamber 51 so as to be sandwiched between the partition plate 57 and the intake pipes 47, and the air funnels 49 connected to the throttle bodies 48. Enters the purification chamber 52 from the partition plate 57.

  In addition, air introduction holes 59 and 59 are provided on both sides of the first case member 54 so as to communicate with the unpurified chamber 51, and the unpurified chamber 51 is provided through the air introduction holes 59 and 59. Intake ducts 60 and 60 for drawing air from outside are connected to both sides of the first case member 54.

  Each throttle body 48 is provided with a throttle valve 61 for controlling the amount of air guided from the purification chamber 52 of the air cleaner 29 via the air funnel 49, and three throttle bodies 48 are arranged corresponding to the front bank BF. As shown in FIG. 3, the throttle valve 61 of the throttle body 48 and the throttle valve 61 of the throttle body 48 arranged in correspondence with the rear bank BR are mutually connected by the interlocking / connecting means 62. Connected.

  Referring also to FIG. 4, throttle valves 61, which are connected to each other by the interlocking / connecting means 62, are arranged on the outer surface of the throttle body 48 at one end along the arrangement direction of the throttle bodies 48. A series of throttle drums 63 are arranged, and the two throttle drums 63 are connected to each other by a connecting link 66.

  One of the throttle drums 63 corresponding to the front bank BF and the rear bank BR, for example, the throttle drum 63 on the front bank BF side, for example, a pair of throttle cables 64 for opening and closing the throttle valve 61. 65. One end portions of 65 are respectively wound and engaged with each other from opposite directions, and the throttle cables 64, 65,... Penetrate through the portion of the cleaner case 50 facing the purification chamber 52 of the first case member 54. Pulled out. Moreover, grommets 67 are attached to the first case member 54 of the cleaner case 50, and the two pairs of throttle cables 64, 65,... That are paired are inserted into the grommets 67.

  2 and 3, the first injectors 68 for injecting fuel when the engine rotates at a high speed are arranged above the purification chamber 52, and the ceiling of the air cleaner 29 in the cleaner case 50 is provided. The air funnels 49 corresponding to the respective cylinders are disposed in the purification chamber 52 corresponding to the first injectors 68. In addition, the intake pipes 47 for each cylinder are provided with second injectors 69 as electric parts for always injecting fuel when the engine is in operation, and the second injectors 69 are also purified chambers 52 of the cleaner case 50. Is housed in.

  Thus, as shown in FIG. 3, the electrical component side coupler 111 connected to the second injectors 69 disposed in the unpurified chamber 51 of the cleaner case 50 through the internal conductors 110 is connected to the external conductor 113. The continuous external conductor side coupler 112 can be detachably connected to the outside of the cleaner case 50 and attached to the outer surface of the side wall of the first case member 54 in the cleaner case 50. Thus, the electrical component side coupler 111 and the external conductor side coupler 112 may be individually arranged for each of the second injectors 69, or a single unit that connects the plurality of internal conductors 110 in common. The electrical component side coupler 111 is attached to the outer surface of the side wall of the first case member 54, and a single external conductor side coupler 112 that connects the plurality of external conductors 113 in common is detachably connected to the electrical component side coupler 111. You may make it do.

  In addition, an intake air temperature sensor 114 (see FIG. 2), which is an electrical component, is disposed in the cleaner case 50. The intake air temperature sensor 114 is a portion facing the purification chamber 52, the first injectors 68. The electrical component side coupler 115 connected to the inner surface of the third case member 56 of the cleaner case 50 so as to be disposed between the funnels 49... And connected to the intake air temperature sensor 114 is connected to the external conductor side coupler 116 connected to the external conductor 117. The cleaner case 50 can be detachably connected to the outside of the cleaner case 50, and is attached to the outer side wall of the third case member 56 in the cleaner case 50.

  By the way, the idle adjustment screw 119 for adjusting the idle opening degree of the throttle valve 61 in each throttle body 48 can be rotated outside the cleaner case 50 so that the first case member in the cleaner case 50 can be rotated. It is attached to the side wall of 54 so that rotation is possible. Thus, the idle adjustment screw 119 can be rotated with the left hand while operating a throttle grip (not shown) disposed on the right side of the steering handle 123 (see FIG. 1) with the right hand. As shown in FIG. 3, the first case member 54 is rotatably attached to the left side wall.

  One end of a wire 120 that rotates while being twisted according to the rotation of the idle adjustment screw 119 is coaxially connected to the idle adjustment screw 119, and the other end of the wire 120 is connected to the throttle drums. One of 63, 63, for example, abutment protrusion 63a provided on the throttle drum 63 on the front bank BF side abuts as shown by a chain line in FIG. The other end portion of the wire 120 is screwed into a support protrusion 121 provided on the throttle body 48 in which the throttle drum 63 is disposed in the throttle body 48 on the front bank BF side. Thus, the amount of protrusion from the support protrusion 121 at the other end of the wire 120 changes due to the rotation of the wire 120 in accordance with the rotation operation of the idle adjustment screw 119, thereby causing each throttle valve 61. Is adjusted.

  Next, the operation of the first embodiment will be described. Since the throttle body 48 is accommodated in the cleaner case 50 of the air cleaner 29, the operating sound of the throttle body 48 is prevented from leaking out of the cleaner case 50. The throttle body 48 can be insulated with a simple structure that only accommodates the throttle body 48 in the cleaner case 50, and an additional protection means against mud, dust, rainwater, etc. is provided. This is unnecessary, and the capacity of the air cleaner 29 can be increased efficiently.

  Further, since the second injectors 69 are also accommodated in the purification chamber 52, the second injectors 69 can be protected by being covered with the cleaner case 50, and the operation sound of the second injectors 69 can be protected by the cleaner case 50. By suppressing leakage to the outside, the operation sound of the second injectors 69 can be insulated, and the second injectors 69 are simply structured so that the second injectors 69 are accommodated in the cleaner case 50. It is not necessary to take individual sound insulation measures for each, and costs and assembly man-hours can be reduced.

  Further, the grommets 67 are attached to the second case member 55 of the cleaner case 50 at the portion facing the unpurified chamber 51, and the throttle cables 64, 65, ... are inserted into the grommets 67, so that the unpurified chamber 51 and the outside It is possible to pull out the throttle cables 64... 65 from the cleaner case 50 while ensuring the sealing performance between them.

  Further, as shown in FIG. 3, an idle adjusting screw 119 for adjusting the idle opening of the throttle valve 61 can be rotated outward from the cleaner case 50 so that the first case member in the cleaner case 50 can be rotated. Since it is rotatably attached to the side wall 54, the idle opening of the throttle valve 61 can be easily adjusted from the outside of the cleaner case 50.

  As shown in FIG. 3, the electrical component side coupler 111 connected to the second injectors 69 attached to the intake pipes 47 via the internal conductors 110 is provided on the outer surface of the side wall of the first case member 54 in the cleaner case 50. The electrical component side coupler 115 attached and connected to the intake air temperature sensor 114 is provided on the outer surface of the side wall of the third case member 56 in the cleaner case 50, and the external conductor side couplers 112 and 116 connected to the external conductors 113 and 117 are connected to the electrical component side coupler. 111 and 115 can be detachably connected, so that the electrical connection and disconnection operation of the external conductors 113 and 117 to the second injector 69... And the intake air temperature sensor 114 can be easily performed outside the cleaner case 50. It can be carried out.

  5 and 6 show a second embodiment of the present invention. FIG. 5 is a longitudinal side view in the vicinity of the air cleaner, and FIG. 6 is a sectional view taken along line 6-6 in FIG.

  A body frame FB of the motorcycle includes a pair of left and right pipe-shaped main frames 75 extending downward from the head pipe 74, a down tube 76 extending downward from the head pipe 74, and rear portions of the main frames 75. A pair of left and right seat rails 77 extending rearward are provided, and an in-line multi-cylinder, for example, in-line 4-cylinder engine body 78 is supported on the main frame 75 and the down tube 76.

  A fuel tank 79 is disposed above the main frames 75 and the seat rails 77, and an air cleaner 80 is disposed between the engine body 78 and the fuel tank 79.

  The fuel tank 79 includes a bowl-shaped tank case 81 that opens downward, and a bottom plate 82 that closes the lower open end of the tank case 81. The fuel tank 79 is provided at the peripheral edge of the lower open end of the tank case 81. The peripheral edge of the bottom plate 82 is caulked and joined to the flange 81a.

  An intake passage portion 84 extending linearly so as to guide the purified air from the air cleaner 80 is connected to the upper side wall of the cylinder head 83 in the engine body 78 for each cylinder.

  The intake passage portion 84 includes an intake pipe 85 connected to the upper side wall of the cylinder head 83, a throttle body 87 connected to the upstream end of the intake pipe 85 via an insulator 86, and a throttle body 87 An air funnel 88 connected to the upstream end is provided. The throttle body 87 and the air funnel 88 are accommodated in a cleaner case 89 of an air cleaner 80, and an injector 90 is attached to the throttle body 87.

  The cleaner case 89 includes a bottom plate 82 of the fuel tank 79 and a synthetic resin case member 92 having an endless gasket 91 interposed between the outer periphery of the bottom plate 82 and the case. The gasket 91 is interposed between the flange portion 107 provided on the outer peripheral portion of the member 92 and the outer peripheral portion of the bottom plate 82. That is, the cleaner case 89 is configured such that the bottom plate 82 of the fuel tank 79 is a ceiling portion, and the bottom plate 82 is provided with a concave portion 82a that is recessed upward to increase the capacity of the cleaner case 89.

  Moreover, both sides of the flange portion 107 are placed on both main frames 75 of the vehicle body frame FB, and the cross members 93 and 94 are installed between the main frames 75 and between the seat rails 77, respectively. The front part and the rear part of the collar part 107 are fastened. The case members 92 are supported by the insulators 86 of the intake passage portions 84.

  By the way, the cleaner case 89 is partitioned into an unpurified chamber 95 and a purifier chamber 96, and the purifier chamber 96 is supported by the upstream end of each air funnel 88, and is formed into a bowl shape. 97 and an air funnel 88, which is formed between the cleaner plate 98 attached to the partition plate 97 and covers the opening end of the partition plate 97, and has a backfire screen 99 attached to the upstream opening end. Are accommodated in an unpurified chamber 95 formed in the cleaner case 89 outside the partition plate 97 and the cleaner element 98, and the throttle bodies 87 and electrical components attached to the throttle bodies 87 are used as The injectors 90 are accommodated.

  An intake duct 100 is connected to the front portion of the case member 92 so as to communicate with the unpurified chamber 95. Further, the throttle valves 101 of the throttle bodies 87 are connected to each other by interlocking / connecting means 102, and the outer surface of the throttle body 87 at one end along the arrangement direction of the throttle bodies 87 is interlocked to each other. Throttle drums 103 connected to the throttle valves 101 connected to each other are arranged, and the throttle cables 104 and 105 wound and engaged with the throttle drums 103 are portions of the case member 92 in the cleaner case 89 that face the unpurified chamber 95. Is inserted into the grommet 106 attached to the outer surface of the case and pulled out to penetrate the case member 92.

  The electrical component side couplers 125 connected to the injectors 90 arranged in the unpurified chamber 95 of the cleaner case 89 via the internal conductors 124 and the external conductor side couplers 126 connected to the external conductors 127 to the cleaner case 89. It is attached to the outer surface of the side wall of the case member 92 in the cleaner case 89 so that it can be detachably connected outside.

  Further, an idle adjusting screw 128 for adjusting the idle opening degree of the throttle valve 101 in each throttle body 87 can be rotated outside the cleaner case 89 so that the case member 92 of the cleaner case 89 can be rotated. The idle adjustment screw 128 is rotatably attached to the left side wall of the case member 92.

  One end of a wire 129 that rotates while twisting according to the rotation of the idle adjustment screw 128 is coaxially connected to the idle adjustment screw 128, and the other end of the wire 129 is connected to the throttle drum 103. The abutting protrusion (not shown) abuts at the idle opening of the throttle valve 101. The other end of the wire 129 is provided on the throttle body 87 where the throttle drum 103 is disposed. The support protrusion 130 is screwed.

  According to the second embodiment, the throttle body 87 and the injector 90 are accommodated in the cleaner case 89, so that the operating sound of the throttle body 87 and the injector 90 is prevented from leaking out of the cleaner case 89. The throttle body 87... And the injector 90... Can be insulated from the operation sound of the throttle body 87... And the injector 90. There is no need to take sound insulation measures, and the cost and assembly man-hours can be reduced.

  Further, the throttle body 87 is accommodated in the unpurified chamber 95, and the throttle cables 104 and 105 for opening and closing the throttle valve 101 of the throttle body 87 are disposed on the cleaner case 89 facing the unpurified chamber 95. Since it penetrates and is drawn out to the outside, the airtight holding structure of the portion through which the throttle cables 104 and 105 penetrate the cleaner case 89 can be simplified.

  Further, since the grommet 106 is attached to the case member 92 of the cleaner case 89 and the throttle cables 104 and 105 are inserted into the grommet 106, the throttle cable 104 is easily secured while ensuring the sealing performance between the unpurified chamber 95 and the outside. , 105 can be pulled out from the cleaner case 89.

  In addition, since the ceiling portion of the cleaner case 89 is configured by the bottom plate 82 of the fuel tank 79, the cleaner case 89 can be configured with a reduced number of parts.

  Further, since the auxiliary machines including the throttle body 87 are accommodated in the cleaner case 89, the capacity of the cleaner case 89 can be sufficiently secured.

  Further, an idle adjusting screw 128 for adjusting the idle opening of the throttle valve 101... Can be rotated on the outside of the cleaner case 89 and is rotatably attached to the side wall of the case member 92 in the cleaner case 89. Therefore, the idle opening of the throttle valve 101 can be easily adjusted from the outside of the cleaner case 89.

  Also, electrical component side couplers 125 connected to the injectors 90 attached to the throttle bodies 87 through the internal conductors 124 are attached to the outer surface of the side wall of the case member 92 in the cleaner case 89, and are connected to the external conductors 127. Since the coupler 126... Can be detachably connected to the electrical component side coupler 125..., The electrical connection and disconnection operation of the external conductors 127 to the injectors 90 can be easily performed outside the cleaner case 89. it can.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

It is a side view of 1st Example. It is an enlarged vertical side view of the vicinity of the air cleaner. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is a vertical side view of the air cleaner vicinity of 2nd Example. FIG. 6 is a sectional view taken along line 6-6 of FIG.

Explanation of symbols

28F, 28R, 83 ... cylinder head 29, 80 ... air cleaner 47 ... intake pipe 48, 87 ... throttle body 50, 89 ... cleaner case 51, 95 ... unpurified chamber 52, 96 ... Clean room 53, 98 ... Cleaner element 61, 101 ... Throttle valve 69, 90 ... Injector 111, 115, 125 as electrical component couplers 112, 116, 126 on the electrical component side ... External conductor side couplers 113, 117, 127 ... External conductor 114 ... Intake air temperature sensors 119,129 as electrical components ... Idle adjustment screw

Claims (2)

  The inside of the cleaner case (50, 89) partitioned into the unpurified chamber (51, 95) and the purified chamber (52, 96) flows from the unpurified chamber (51, 95) to the purified chamber (52, 96). The air cleaner (29, 80) in which the cleaner element (53, 98) for filtering the air to be stored is housed, and the amount of air supplied from the purification chamber (52, 96) to the cylinder head (28F, 28R, 83) In the vehicle engine air intake apparatus including the throttle body (48, 87), the throttle body (48, 87) is accommodated in the cleaner case (50, 89), and the throttle body (48, 87) is An idle adjusting screw (119, 128) for adjusting the idle opening of the throttle valve (61, 101) provided is provided in the cleaner case (50, 8). Outwardly intake system for a vehicle engine, characterized by being pivotally attached to the side wall of the cleaner case as possible to rotating operation (50,89) of).   The inside of the cleaner case (50, 89) partitioned into the unpurified chamber (51, 95) and the purified chamber (52, 96) flows from the unpurified chamber (51, 95) to the purified chamber (52, 96). The air cleaner (29, 80) in which the cleaner element (53, 98) for filtering the air to be stored is housed, and the amount of air supplied from the purification chamber (52, 96) to the cylinder head (28F, 28R, 83) In a vehicle engine air intake apparatus comprising a throttle body (48, 87) that performs the above operation, the throttle body (48, 87) and the throttle body (87) or the throttle body are disposed in the cleaner case (50, 89). And electrical components (69, 90, 114) including an injector (69, 90) attached to the intake pipe (47) on the downstream side of (48). The electrical component side coupler (111, 115, 125) electrically connected to the electrical component (69, 90, 114) is connected to the external conductor side coupler (112, 116, 126) connected to the external conductor (113, 117, 127). Is attached to the outer surface of the side wall of the cleaner case (50, 89) so that it can be detachably connected to the outside of the cleaner case (50, 89).

Images