CN1508421A - Throttle valve device - Google Patents
Throttle valve device Download PDFInfo
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- CN1508421A CN1508421A CNA2003101136725A CN200310113672A CN1508421A CN 1508421 A CN1508421 A CN 1508421A CN A2003101136725 A CNA2003101136725 A CN A2003101136725A CN 200310113672 A CN200310113672 A CN 200310113672A CN 1508421 A CN1508421 A CN 1508421A
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- throttle valve
- fuel
- hawser
- valve body
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
In a throttle body device in which, on a body having an intake passage, a valve shaft which traverses the intake passage is rotatably supported and a control box which houses a control unit for operation control of an engine is mounted, a throttle valve which controls an intake air quantity is fixedly mounted on the valve shaft in the inside of the intake passage, a throttle drum is fixedly mounted on one end of the valve shaft outside the body, and lead lines for a control unit are arranged in a compact form while preventing the lead lines for the control unit from interfering with the throttle drum. To a control box 43 which is mounted on a body 36 at a side opposite to a throttle drum 39, lead lines 51 to be connected to the control unit are connected from the throttle drum 39 side, and a guard member 53 having a partition portion 53a which is interposed between the lead lines 51 and the throttle drum 39 is mounted on the body 36.
Description
Technical field
The present invention relates to a kind of Throttle valve device, wherein, have on the valve body of intake duct, the rotatably mounted valve rod that the aforementioned intake duct of crosscut is arranged, and control box is installed, take in the control gear of control engine running, in the inside of aforementioned intake duct, on aforementioned valve rod, be fixed with the throttle valve of control air inflow, in the outside of aforementioned valve rod, end at aforementioned valve rod is fixed with the throttling tube.The present invention relates to the improvement of this Throttle valve device.
Background technique
This Throttle valve device for example can be understood from following patent documentation 1 grade.
Patent documentation 1
Te Kaiping 11-294216 communique
But, in aforesaid prior art, owing to do not consider to prevent the interference that the throttling tube caused from the lead that control box is drawn, can't connect up away from the position of throttling tube, so the wiring space when being difficult to guarantee to be assemblied in control gear on the Throttle valve device.
Summary of the invention
The present invention is directed to afore-mentioned and make invention.The object of the present invention is to provide a kind of Throttle valve device, this Throttle valve device can prevent that the lead that control gear is used from causing interference to the throttling tube, and the configured in one piece compactness.
In order to realize aforementioned purpose, the invention of a first aspect of the present invention relates to a kind of Throttle valve device, wherein have on the valve body of intake duct, the rotatably mounted valve rod that the aforementioned intake duct of crosscut is arranged, and control box is installed, this control box is taken in the control gear of the running of control motor, inside at aforementioned intake duct, on aforementioned valve rod, be fixed with the throttle valve of control air inflow, outside at aforementioned valve body, end at aforementioned valve rod, the throttling tube is installed, it is characterized in that: in a side opposite, on the aforementioned control box of installing on the aforementioned valve body with aforementioned throttling tube, be connected with the lead that should be connected with aforementioned control gear in aforementioned throttling tube side, the protecting component with the separation board between aforementioned wire and throttling tube is installed on the aforementioned valve body.
Scheme according to the described invention of a first aspect of the present invention, can be in the interference of the lead that prevents from really to be connected to the throttling tube with control box, and can make this lead ground is set extremely near the valve body side, can near valve body, guarantee wiring space easily, and the overall compact ground that comprises near the lead that valve body is can be twined.
In addition, the described invention of a second aspect of the present invention relates to the scheme of the described invention of aforementioned a first aspect of the present invention, it is characterized in that, constitute the throttle valve hawser with the hawser lateral part, be wound on the aforementioned throttling tube from an end of the hawser inside portion that an end of hawser lateral part is drawn, be connected with it, the cable supports portion and the aforementioned protecting component of aforementioned outside hawser location and supporting are formed one, according to this scheme, need not to be provided with especially the support unit of throttle valve hawser special use, can reduce number of components.
In addition, the described invention of a third aspect of the present invention relates to of the present invention first or the described Throttle valve device of second aspect, it is characterized in that, the outside joiner that is connected with aforementioned wire is installed on the aforementioned control box, but make its installing/dismounting, and face aforementioned throttling tube side and form one, aforementioned separation board is tabular extension according to the direction that the said external joiner is installed on aforementioned joint part, according to this scheme, when externally joiner is operated for the joint part installing/dismounting, lead by separating the external portion of board joiner, carry out the installing/dismounting operation of outside joiner easily, maintainalbility improves.
Description of drawings
Fig. 1 is the side view of scooter type motor cycle;
Fig. 2 is the figure that looks along arrow among Fig. 12 that has omitted under the state of car cover;
The figure of Fig. 3 for looking along the arrow among Fig. 23;
Fig. 4 is the enlarged view of the major component of Fig. 2;
The side view of the Throttle valve device that Fig. 5 watches for arrow 5 directions from Fig. 4;
Fig. 6 is the transverse sectional view of Throttle valve device;
The side view that Fig. 7 removes for the part of fuel hose;
Fig. 8 is for representing the side view of vertically cutting open of assembly department of the suction tude of Fuelinjection nozzle in the amplification mode;
The figure of Fig. 9 for looking along the arrow among Fig. 89.
Symbol description: 27 Throttle valve devices; 35 intake ducts; 36 valve bodies; 37 valve rods; 38 throttle valve; 39 throttling tubes; 41 throttle valve hawsers; 42 control gear, 43 control boxs, 49 joint parts; 50 outside joiner 51 leads 53 protecting components; 53a separates board 53b cable supports portion 55 hawser lateral parts; 56 hawser inside portions; E-engine.
Embodiment
One embodiment of the present of invention shown in reference to the accompanying drawings describe embodiments of the present invention below.
Fig. 1～Fig. 9 represents one embodiment of the present of invention, Fig. 1 is the side view of scooter type motor cycle, Fig. 2 is the figure that looks along the arrow among Fig. 12 that has omitted under the state of car cover, the figure of Fig. 3 for looking along the arrow among Fig. 23, Fig. 4 is the enlarged view of the major component of Fig. 2, the side view of the Throttle valve device that Fig. 5 watches for arrow 5 directions from Fig. 4, Fig. 6 is the transverse sectional view of Throttle valve device, the side view that Fig. 7 removes for the part of fuel hose, Fig. 8 is for representing the side view of vertically cutting open of assembly department of the suction tude of Fuelinjection nozzle, the figure of Fig. 9 for looking along the arrow among Fig. 89 in the amplification mode.
At first, in Fig. 1 and Fig. 2, vehicle frame 11 as the scooter type motor cycle of dilly comprises lower extending tube 14, and this lower extending tube 14 extends to the rear lower side from the top of head-tube 13, but this head-tube 13 supports front vehicle fork 12 by axle supporting front-wheel WF in the mode of steering; Head tube 15, this head tube 15 extend to the rear lower side with the angle of inclination of more relaxing than this lower extending tube 14 from the top of aforementioned lower extending tube 14; Pairing left and right rear portion pipe 16,16, the front end of this pairing left and right rear portion pipe 16,16 is arranged at the rearward end of aforementioned top pipe 15, and this extends to the back upper place rear portion pipe 16,16, and its rear end interconnects; Pairing left and right lower tube 17,17, this pairing left and right lower tube 17,17 front end is connected in the bottom of aforementioned lower extending tube 14, and this rear end to lower tube 17,17 is connected in aforementioned two rear portions pipe 16,16 intermediate portion, two lower tube 17,17 are the shape of the roughly U oxbow that opens wide towards the top under situation about seeing from the side.
Power plant P is made of the motor E and the stepless speed variator M of single cylinder, the mode that this motor E tilts towards the front upper place according to the cylinder axis is arranged at the place ahead of trailing wheel WR, and at the fore-and-aft direction intermediate portion of aforementioned vehicle frame 11, support the front portion of power plant P in the mode that can swing up and down, this stepless speed variator M is used for stepless change is carried out in the output of this motor E, it is passed to trailing wheel WR, aforementioned trailing wheel WR is supported on the rear portion of power plant P by axle, between the rearward end and aforementioned power plant P of vehicle frame 11, be provided with rear portion damping device 20.
Simultaneously with reference to Fig. 3, top support frame 21 ... be individually fixed in the joint of aforementioned two rear portions pipe 16,16 and aforementioned lower tube 17,17.On the other hand, pairing left and right bottom bracket 23 ... be fixed in the top of the crankcase 22 among the motor E, aforementioned two bottom brackets 23 ... the swinging mounting point SP that passes through motor suspension 24 in the mode that can swing supports, and the two end part of this motor suspension 24 are connected in aforementioned top carriage 21 ... on.That is, be arranged in power plant P the front portion motor E crankcase 22 with the swing mode be supported on the vehicle frame 11.
Simultaneously with reference to Fig. 4, left side at trailing wheel WR, above stepless speed variator M, be provided with air filter 25 by this stepless speed variator M supporting, the air that purifies by this air filter 25 passes through connecting tube 26, feed to Throttle valve device 27, this Throttle valve device 27 is by the elasticity connecting cylinder 28 of rubber system, be connected with the upstream extremity of the suction tude 29 of the bending that is the U font substantially, the downstream of suction tude 29 is connected with this cylinder cap 30, and the suction port 31 that itself and basic central position along the left and right directions of motor E are arranged on the cylinder cap 30 is communicated with.
In addition, be embedded in the top of suction tude 29 towards the bottom of the Fuelinjection nozzle 32 of suction port 31 burner oils, clamping has Fuelinjection nozzle 32 between fuel joint 33 and aforementioned suction tude 29, and this fuel joint 33 is anchored on the aforementioned suction tude 29 according to the mode that is communicated with Fuelinjection nozzle 32.
In Fig. 5 and Fig. 6, Throttle valve device 27 comprises valve body 36, and this valve body 36 has the intake duct 35 that is connected with the suction port 31 of cylinder cap 30 among the aforementioned motor E; Valve rod 37, this valve rod 37 has the axis of basic horizontal, is rotatably supported on the aforementioned valve body 36, makes the aforementioned intake duct 35 of crosscut; The throttle valve 38 of butterfly type, this throttle valve 38 are fixed on the valve rod 37 in the inside of this intake duct 35, make to be adjusted in the air inflow that circulates in the intake duct 35; Throttling tube 39 in the foreign side of aforementioned valve body 36, is fixed on the end of valve rod 37.
This throttling tube 39 is with the direction of advancing towards two-wheel motorcycle, be arranged at the right side side of valve body 36, between this throttling tube 39 and valve body 36, be provided with and recover spring 40, this recovery spring 40 is put aforementioned throttle valve 38 towards closing lateral deviation, the driver of two-wheel motorcycle is by the elastic force of the aforementioned recovery spring 40 of opposing, and connected throttle valve hawser 41 carries out draw operations on the throttling tube 39 to being wound in, and throttle valve 38 rotations is driven into opens side.
In aforementioned valve body 36, with aforementioned throttling tube 39 in opposition side, promptly on the left side control box 43 is installed, has taken in control gear 42 in this control box 43, this control gear 42 is used to carry out the running of the motor E that waits between the fuel injection amount of Fuelinjection nozzle 32 and burn period is controlled.
On aforementioned circuit substrate 46, be connected with throttle valve sensor 47, this throttle valve sensor 47 can detect the opening degree of throttle valve 38, be connected with an end of valve rod 37, in addition at the upstream side of throttle valve 38, be connected with intake air temperature sensor 48, the intake temperature that this intake air temperature sensor 48 detects in the intake duct 35, in addition, air inlet pressure sensor also is connected with aforementioned circuit substrate 46, this air inlet pressure sensor detects the negative pressure in the intake duct 35 in the downstream side of throttle valve 38 as suction pressure, though this point does not illustrate in the drawings.
The top of the box main body 44 in aforementioned control box 43, be integral and be provided with joint part 49, this joint part 49 strides across the top of valve body 36, in the face of throttling tube 39 sides, with a plurality of leads 51 that should be connected with aforementioned control gear 42 ... the outside joiner 50 that connects is installed on the aforementioned joint part 49 according to the mode of throttling tube 39 side installing/dismountings relatively.And each lead 51 ... twine as wire harness 52, this wire harness 52 stretches out towards the place ahead from the outside joiner 50 that is installed on the joint part 49 as shown in Figure 4, is the U font substantially on the right side in addition and reverses.
On aforementioned valve body 36 protecting component 53 is installed, this protecting component 53 has the board of separation 53a, and this separation board 53a is located in the lead 51 that is connected with outside joiner 50 ... and between the throttling tube 39.Aforementioned separation board 53a is according to the direction that is installed on along outside joiner 50 on the aforementioned joiner 49, the mode that is tabular extension forms, separate on board 53a at this, be provided with squint 54, this squint 54 is used for the situation that is wound on the throttling tube 39 from top identification throttle valve hawser 41.
This throttle valve hawser 41 is made of hawser lateral part 55 and hawser inside portion 56, this hawser lateral part 55 is passed in the mode that moves in this hawser inside portion 56, one end of the hawser inside portion 56 of stretching out from this hawser lateral part 55 is wound on the throttling tube 39, realize connecting, be used for supporting the 53b of cable supports portion and the aforementioned protecting component 53 formation one of an end of this hawser lateral part 55 with orientation type.
The aforementioned cable supports 53b of portion is provided with breach 64, the carrying cylinder 58 that has external screw thread 57 in periphery inserts breach 64, the fastening a pair of nut 59,60 that screws togather with aforementioned male screw thread 57 in the both sides of the 53b of cable supports portion, thus, carrying cylinder 58 is fixed on the 53b of cable supports portion.One overhang bracket of this hawser lateral part 55 stretches out from an end of hawser lateral part 55 on the outer end of this carrying cylinder 58, and an end that passes the hawser inside portion 56 of carrying cylinder 58 in a movable manner stretches out in throttling tube 39 sides.
This throttle valve hawser 41, forwards stretches out towards the back upper place from the aforementioned cable supports 53b of portion, with Throttle valve device 27 corresponding parts, throttle valve hawser 41 is with the lead 51 that is connected with aforementioned control gear 42 ... be provided with according to the mode of oppositely extending mutually.
Aforementioned protecting component 53 is positioned on the valve body 36 in the Throttle valve device 27 by locating stud 61, and be anchored on the aforementioned valve body 36 by single spring members 62, in addition, spring members 62 is arranged at, just be arranged on cable supports portion 53 in the throttle valve hawser 41 and the part between the throttling tube 39, with aforementioned separation board 53a opposition side protecting component 53 is being anchored on position on the valve body 36, locating stud 61 is arranged between spring members 62 and the throttling tube 39, between valve body 36 and protecting component 53.
If adopt the configuration of this locating stud 61 and threaded part 62, during installing/dismounting operation by joiner 50 relative joint parts 49 externally, act on the external force separated on the board 53a and the hawser lateral part 55 from throttle valve hawser 41 and act on the direction that counter-force on the 53b of cable supports portion acts on the power on the protecting component 53 and be axis around threaded part 62, along the clockwise direction among Fig. 4, that is the fastening direction of threaded part 62.So, even at locating stud 61 and valve body 36, or having between the protecting component 53 under the situation of rocking slightly, threaded part 62 is still not loosening, can prevent to relax by the single threaded part 62 of minimum number, simultaneously protecting component 53 is anchored on the valve body 36.
The Throttle valve device 27 of Gou Chenging is arranged at the place ahead of swinging mounting point SP like this, this swinging mounting point SP with the swing mode with the top-supported of the crankcase 22 among the motor E of power plant P on vehicle frame 11.In addition, at the top of crankcase 22,, be provided with starter motor 63 (with reference to Fig. 3) according to the mode of the rear side that is positioned at aforementioned swinging mounting point SP.In addition, the bottom 43a of the control box 43 in the Throttle valve device 27 is flat condition basically and forms according to from top and the opposed mode of motor E.
But in the front portion of vehicle frame 11, by lower extending tube 14, head tube 15 and two rear portions pipe 17,17 part cargo shipments that center on have fuel tank 68.Aforementioned vehicle frame 11, the part of power plant P and fuel tank 68 are covered by plastic car cover 69, and this car cover 69 is made of following part, and this following part comprises: the front shroud 70 that covers the front portion of aforementioned vehicle frame 11; Be arranged at the pairing left and right legging portion 71 of the both sides of this front shroud 70 Respectively with this to legging portion 71 ... the pairing left and right pedal that connects of bottom ... 72; Pedal overhead guard (floor tunnel) portion 73, this pedal overhead guard (f1oor tunnel) portion 73 is at two pedals ... towards the top protuberance, cover aforementioned fuel tank 68 between 72; Skirt section 74 ..., this skirt section 74 ... from aforementioned two pedals ... 72 external side brim, vertically downward; Back cover 75, this back cover 75 and aforementioned skirt section 74 ..., pedal ... 72 are connected with pedal overhead guard (f1oor tunnel) portion 73, cover the rear portion of vehicle frame 11.
On this back cover 75, be provided with tandem seat 76 by pipe 16,16 supportings of aforementioned two rear portions.
Inside at fuel tank 68, be provided with strainer 77 and petrolift 78, this petrolift 78 will be inhaled on the fuel in the fuel tank 68 by this strainer 77, and the other end of the fuel hose 79 that the one end is connected with this fuel tank 78 is connected with aforementioned Fuelinjection nozzle 32 by aforementioned fuel joint 33.
Thus, petrolift 78 is in the position of leaving motor E, be arranged in the fuel tank 68 of the front portion that is loaded into vehicle frame 11, form and be not installed in the structure that petrolift 78 is installed among the power plant P, the overall dimensions that can reduce power plant P improves the assembling of power plant P.
On vehicle frame 11, be fixed with the 1st clamper 80 of the intermediate portion that holds fuel hose 79, in the present embodiment, the 1st clamper 80 is anchored on the support plate 81, this support plate 81 is arranged at pairing left and right rear portion pipe 16, in 16 at state towards the direct of travel of two-wheeled motor vehicle, be positioned at the front portion of the rear portion pipe 16 in left side.In addition, between Fuelinjection nozzle 32 and the 1st clamper 80, fuel hose 79 is arranged at the right side of vehicle frame 11 according to the mode of bending, and the 2nd clamper 82 that holds the part of the close motor E in the fuel hose 79 is anchored on the fuel hose support plate 83, thus, be fixed in motor E side.
Like this, the 1st clamper 80 that holds the intermediate portion of fuel hose 79 is fixed on the vehicle frame 11, between the Fuelinjection nozzle 32 and the 1st clamper 80 that are attached on the motor E, fuel hose 79 is arranged at agley ... the right side of vehicle frame 11, thus, corresponding to power plant P along situation about swinging up and down, make in the fuel hose 79, part between the 1st clamper 80 and the motor E is reversed, avoid following the situation that fuel hose 79 occurs bending and deformation that swings up and down of power plant P, the twisting strength of fuel hose 79 is greater than resistance to flexure, thus, can compare with the occasion that occurs bending and deformation, can improve the durability of this fuel hose 79.
In addition, be fixed in motor E side owing to hold the 2nd clamper 82 of the part of the close motor E in this fuel hose 79, at the 1st and the 2nd clamper 80, between 82, fuel hose 79 is arranged at the right side of vehicle frame 11 agley, so by the 2nd clamper 82, can improve the precision that fuel hose 79 is arranged at the right side of vehicle frame 11 agley, and can prevent that this fuel hose 79 from producing bending deflection by the joint of fuel hose 79 with fuel-injection pump 32.
In Fig. 7, aforementioned fuel hose 79 is the fuel hose of multi-layer high-voltage type, and it is by the 79a of internal layer portion, the 79b of middle level portion, wet end 79c and the outermost outer 79d of portion constitute, the 79a of this internal layer portion such as, constitute by fluorine class rubber, the 79b of this middle level portion is formed by nitrile butadiene rubber, cover the aforementioned internal layer 79a of portion, aforementioned wet end 79c is formed by polyester, and covers the aforementioned middle level 79b of portion, and the aforementioned outer 79d of portion is formed by chlorine tribute third urea (ヒ De リ Application hydrin) rubber.One end of this fuel hose 79 engages with the connector 84 that is connected with petrolift 78, and this fuel hose 79 keeps with engaging by the 1st cartridge clip 85 of this connector 84.In addition, the other end of aforementioned fuel hose 79 engages with the fuel joint 33 that is connected with fuel-injection pump 32, and this fuel hose 79 keeps with engaging by the 2nd cartridge clip 86 of this fuel joint 33.
By like this, fuel hose 79 is made of the fuel hose of multi-layer high-voltage type, then can increase the intensity of this fuel hose 79, can help to improve the durability of the fuel hose 79 that fuel under high pressure is led.
But; aforementioned fuel hose 79 by by such as; the protecting hose 87 that ethylene propylene rubber forms covers; the fuel hose 79 of the state that is connected with fuel joint 33 by the 2nd cartridge clip 86 is distolateral from one; insert in the protection flexible pipe 87;, be connected by the 1st cartridge clip 85 from an end of the outstanding fuel hose 79 of this protecting hose 87 with connector 84.
In the 1st clamper 80, on cylindrical part 88, be integral to be provided with board 89 is installed, on this cylindrical part 88, according to the mode of passing this cylindrical part 88 bump rubber 90 cylindraceous is installed, two ends at this bump rubber 90, has the flange 90a with two end in contact of this cylindrical part 88,90a.In addition, insert in the aforementioned bump rubber 90 by the protecting hose 87 that will cover fuel hose 79, fuel hose 79 is held by the 1st clamper 80, is used for bolt 92 insertions that the 1st clamper 80 is anchored on the vehicle frame 11 are opened in the patchhole 91 of aforementioned installation board 89.
The structure of the 2nd clamper 82 is identical with aforementioned the 1st clamper 80, and by bump rubber 90 and protecting hose 87, fuel hose 79 holds by the 2nd clamper 82, by bolt 93, the 2nd clamper 82 is anchored on the fuel hose support plate 83.
In addition, the the 1st and the 2nd clamper 80,82 modes according to the left and right sides that is distributed in the vehicle body center line BC that extends along fore-and-aft direction are provided with, the the 1st and the 2nd clamper 80, fuel hose 79 between 82 and protecting hose 87 are according to any clamper 80,82, towards left and right directions the same side of vehicle frame 11, in the present embodiment, the mode of extending towards the right side at the state towards the place ahead of the direct of travel of two-wheeled motor vehicle is provided with.That is, crooked mode is provided with the fuel hose 79 between the 1st and the 2nd clamper 80,82 according to expanding on the right side of vehicle frame 11.So, in fuel hose 79, can must be longer with the length setting between the 1st and the 2nd clamper 80,82, thus, can more positively suppress bending load and act on the fuel hose 79, can further improve the durability of fuel hose 79.
In addition, motor E is according to the basic central position of left and right directions, promptly, fuel-injection pump 32 the position is set from aforementioned vehicle body center line BC, be offset to a side identical with the 1st clamper 80, promptly Zuo Ce mode is supported on the vehicle frame 11, if adopt such configuration, help guaranteeing the wobble length of fuel hose 79.
In Fig. 8, suction tude 29 is according to Throttle valve device 27, be connected with the cylinder cap 30 of the below that is positioned at Throttle valve device 27, substantially the mode that is the C oxbow forms, the downstream of its upstream extremity and elasticity connecting cylinder 28 is closely chimeric, the upstream extremity of this elasticity connecting cylinder 28 and the 36a of downstream side connecting tube portion of the valve body 36 that is arranged on aforementioned throttle valve gear 27, the coupled condition of elasticity connecting cylinder 28 and valve body 36 and suction tude 92 is by the fastening maintenance around the 3rd clamper 94 of elasticity connecting cylinder 28.That is, the valve body 36 in the Throttle valve device 27 is connected with cylinder cap 30 by elasticity connecting cylinder 28 and suction tude 29.
Simultaneously with reference to Fig. 9, in suction tude 29, fuel-injection pump 32 is installed, this fuel-injection pump 32 is towards suction port 31 burner oils of cylinder cap 30, the on-off action of this fuel-injection pump 32 is by control gear 42 controls, and this control gear 42 is admitted the inside of being fixed in the control box 43 on the valve body 36 that is installed on aforementioned Throttle valve device 27.In addition, outside joiner 95 is installed on the joint part 32a that is located on the fuel-injection pump 32, this outside joiner 95 with tighten the lead 51 that is connected with control gear 42 ... the wire harness 52a of wire harness 52 branches connect.
Offer mounting hole 96 in suction tude 29, this mounting hole 96 is towards cylinder cap 30 side openings, and the inside face of its front end and suction tude 29 is right, and the front end of fuel-injection pump 32 is embedded in this mounting hole 96 with air tight manner.In addition, at the head of fuel-injection pump 32, be integral the 33a of connecting tube portion that is connected with fuel hose 79 is set, the 33a of this connecting tube portion is chimeric with fluid tight manner by the fuel joint 33 that synthetic resin forms by the inside of aforementioned fuel-injection pump 32.
In fuel joint 33, be provided with stop recess 97 in addition, this stop recess 97 fastens the fastening teat 32b that is arranged on the aforementioned fuel-injection pump 32, fuel joint 33 is chimeric with the head of aforementioned fuel-injection pump 32, this fuel joint 33 fastens aforementioned fastening teat 32b and aforementioned fastening recess 97, thus, make the fuel-injection pump 32 relative 33a of connecting tube portion circumferential positions keep certain.
Aforementioned fuel hose support plate 83 forms according to the mode of extending along the fuel hose 79 that is connected with the 33a of connecting tube portion of fuel joint 33, one end of this fuel hose support plate 83 is by a plurality of, such as, the common fastening of pair of bolts 98,98 is anchored on the suction tude 29 with fuel joint 33.Promptly, in the following manner, on aforementioned fuel joint 33, be integral and be provided with support 33b, this mode is: be located between the end of protuberance 29a and aforementioned fuel hose support plate 83, this protuberance 29a is based on the suction tude 29 according to being embedded in the mode that the fuel-injection pump 32 in the mounting hole 96 extends in parallel with front end, being integral, on this support 33, installation is connected with the packing ring 99,99 of pair of metal system.Yet, insert an end and aforementioned two packing rings 99 of fuel hose support plate 83,99 bolt 98,98 screw togather with aforementioned protuberance 29a, but, between aforementioned support 33b and protuberance 29a, be folded with cartridge clip 101, this cartridge clip 101 fastens with the buckling groove 100 of the periphery that is opened in fuel-injection pump 32, determines the axial position of fuel-injection pump 32.
But, aforementioned support 33b is according to the position of circumferentially staggering on the relative 33a of connecting tube portion edge, promptly in the mode of extending with joint part 32 opposition sides of fuel-injection pump 32, be integral and be arranged on the fuel joint 33, by like this, determine the restraint location of fuel joint 33 relative suction tude 29, can increase the degrees of freedom in the configuration of joint of the wire interconnecting piece of relative fuel-injection pump 32 and fuel hose 79.
Thus, one end of fuel joint 33 and fuel hose support plate 83 is by common fastening being anchored on the suction tude 29, thus, fuel-injection pump 32 is clamped between fuel joint 33 and the suction tude 29, makes the circumferential position of fuel-injection pump 32 of the 33a of connecting tube portion of relative fuel joint 33 keep certain and makes the position of fuel-injection pump 32 of the suction port 31 of relative cylinder cap 30 keep certain
In the both sides of aforementioned fuel hose support plate 83, sidepiece with fuel-injection pump 32 opposition sides, by be located in wire harness 52 and motor E that the control gear 42 of Throttle valve device 27 is connected between, substantially vertically be integral and be provided with thermoscreen wall 83a, this thermoscreen wall 83a is used to prevent the adverse effect to aforementioned wire harness 52 that the radiations heat energy from motor E causes.
The 2nd clamper 82 that supports aforementioned fuel hose 79 is anchored on the other end of fuel hose support plate 83 by bolt 83, makes fuel hose 79 be supported on the other end of fuel hose support plate 83.
Effect to present embodiment is described below, have and be connected with the fuel joint 33 of connecting tube portion 33 that fuel is sent to the fuel hose 79 of Fuelinjection nozzle 32 and make the circumferential position of the Fuelinjection nozzle 33 of the relative connecting tube 33a of portion keep certain, the head embedding of itself and Fuelinjection nozzle 32 is contained, be able to liquid seal, make the position of relative suction port 31 keep certain, simultaneously Fuelinjection nozzle 33 is located between the suction tude 29, fuel joint 33 is anchored on the suction tude 29, thus, can be by fuel joint 33 be anchored on the suction tude 29, the relative position of Fuelinjection nozzle 33 relative suction ports 31, and the position of fuel hose 79 relative Fuelinjection nozzles 32 keeps certain, Fuelinjection nozzle 32 is installed on the suction tude 29, fuel is fed to the Fuelinjection nozzle 32 of occasion of single-cylinder engine E and the installation reliability of fuel hose 79 and improve.
In addition, because an end of fuel hose support plate 83 is by pair of bolts 98,98 fuel joint 33 common fastening and being anchored on the suction tude 29, fuel hose 79 is supported on the other end of fuel hose support plate 83, so can in the increase of avoiding number of components, reduce the vibration of fuel hose 79.In addition, the fuel hose 79 that fuel hose support plate 83 can connect along the 33a of connecting tube portion of fuel joint 33 and extending to form, can not cause the mode of interference to keep fuel hose 79 according to fuel hose 79, can increase the degrees of freedom in the configuration of aforementioned joint part 32a the joint part 32a of Fuelinjection nozzle 32.
In addition, front portion with power plant P of motor E is supported on the vehicle frame 11 according to the mode that can swing up and down, but, because fuel hose 79 is connected with fuel tank 68 on being loaded into vehicle frame 11 by petrolift 78, so can make fuel hose 79 follow power plant P to swing together, easily Fuelinjection nozzle 32 is installed on motor E and is loaded into swingably on the scooter type motor cycle on the vehicle frame 11.
In addition, on Throttle valve device 27, end at this valve rod 37 is fixed with throttling tube 39, but, following lead 51 ... from these throttling tube 39 sides with aforementioned throttling tube 39 opposition sides, the control box 43 that is installed on the valve body 36 connects, and this lead 51 ... should be connected with the control gear 42 in being received in this control box 43, protecting component 53 is installed on the main body 36, and it has and is folded in this lead 51 ... and the separation board 53a between the throttling tube 39.
So, can prevent the lead 51 that is connected with control box 43 really ... throttling tube 39 is caused interference, can extremely arrange this lead 51 simultaneously near valve body 36 sides ground ... can be easily near valve body 36, guarantee wiring space, can make near the lead that has valve body 36 ... with the size of compactness it being twined on the whole of Throttle valve device 27.
In addition, because with the following 53b of cable supports portion and protecting component 53 formation one that stretches an end of hawser 55 in the orientation type supporting throttle valve hawser 41,, can reduce the quantity of parts so need not to be provided with especially the support unit of the special use of throttle valve hawser 41.
In addition, the joint part 49 of outside joiner 50 is according to being integral with the right mode in throttling tube 39 sides, the joint 49 and the lead 51 of this outside joiner 50 ... connect, and on control box 43, but installing/dismounting ground is installed, the separation board 53a of protecting component 53 is along the installation direction of the outside joiner 50 of relative joint part 49, be tabular extension, thus, can be when the installing/dismounting of the outside joiner 50 of joint part 49 be operated relatively, by separating board 53a outside joiner 50 is led, easily outside joiner 50 is carried out the installing/dismounting operation, can make maintenance good.
Also have, the air filter 25 that is supported on the stepless speed changer M among the power plant P is connected with the cylinder cap 30 of motor E with suction tude 29 by Throttle valve device 27, but, valve body 36 in the Throttle valve device 27 connects with the suction tude 29 that is connected with cylinder cap 30 by elasticity connecting cylinder 28, Throttle valve device 27, be arranged at the place ahead of swinging mounting point SP of vehicle frame 11 at top of crankcase 22 of the motor E of power plant P, Throttle valve device 27 is equipped with the control gear 42 of the running of control motor E on aforementioned valve body 36.
So, because the vibration that acts on the Throttle valve device 27 from motor E absorbs by elasticity connecting cylinder 28, so can reduce to being assemblied in the vibration of the control gear 42 on the Throttle valve device 27, in addition, because the place ahead at swinging mounting point SP, Throttle valve device 27 is set,, can alleviates the load that acts on the elasticity connecting cylinder 28 that is located between Throttle valve device 27 and the cylinder cap 30 with doing one's utmost so the distance between cylinder cap 30 and the Throttle valve device 27 can be shortened.
In addition, the end of the valve rod 37 of respective axes basic horizontal in Throttle valve device 27, in the outside of valve body 36, control gear 42 is set, admit this control gear 42, the bottom 43a that is installed on the control box 43 on the valve body 36 is according to being formed flatly from top and the opposed mode of motor E, thus, can be as much as possible must be bigger with the volume settings of control box 43, in addition, make the bottom 43a of control box 43 be flat condition, ease of use improves.
In addition, since at the rear of aforementioned swinging mounting point SP at the top of crankcase 22, be provided with starter motor 63, make control gear 42 and starter motor 63 do one's utmost ground connection road surface away from scooter type motor cycle, make the adverse effect of takeofing of the water of phase road pavement can not feed through to control gear 42 and starter motor 63 as much as possible, and by control gear 2 and starter motor 63 being arranged at the place, both sides, front and back of swinging mounting point SP, can control gear 42 not impacted as much as possible from the noise of starter motor 63.
In addition, because the throttle valve hawser 41 that is connected with throttling tube 39 coilings that are fixed at control gear 42 opposition sides on the valve rod 37, with the lead 51 that is connected with control gear 42 ... with Throttle valve device 27 corresponding parts, oppositely extending ground mutually is provided with, so at throttle valve hawser 41 and lead 51 ... in any one maintenance the time, can be to throttle valve hawser 41 and lead 51 ... in another person impact, can make throttle valve hawser 41 and lead 51 ... maintenance good.
In the above, embodiments of the invention are described, still, the invention is not restricted to previous embodiment, under the situation of in not breaking away from the scope that claim asks for protection, being put down in writing of the present invention, can carry out various design alterations.
Such as, the present invention also can be used for the two-wheeled motor vehicle beyond the scooter type motor cycle, motor tricycle.
If it is such as described above, adopt the described invention of first aspect present invention, can prevent really that the lead that is connected with control box from causing interference to Throttle valve device, simultaneously arrange this lead according to the mode that is positioned as close to the valve body side, can be easily near valve body, guarantee wiring space, near the lead the valve body can be wound in compactly and comprise it on the whole.
In addition,, can need not to be provided with especially the support unit of throttle valve hawser special use, reduce number of components according to the described invention of a second aspect of the present invention.
In addition, according to the described invention of a third aspect of the present invention, can be when the installing/dismounting of the outside joiner of joint part be operated relatively, by separating board, outside joiner is led, carry out the installing/dismounting operation of outside joiner easily, maintainalbility improves.
Claims (3)
1. Throttle valve device, wherein, on the valve body with intake duct (35) (36), rotatably be supported with the valve rod (37) of the aforementioned intake duct of crosscut (35), and control box (43) is installed, this control box (43) is admitted the control gear (42) of the running control usefulness of motor (E), inside in aforementioned intake duct (35), on aforementioned valve rod (37), be fixed with the throttle valve (38) of control air inflow, foreign side in aforementioned valve body (36), end at aforementioned valve rod (37), be fixed with throttling tube (39), it is characterized in that in a side opposite with aforementioned throttling tube (39), be installed on the aforementioned control box (43) on the aforementioned valve body (36), be connected with the lead (51) that can be connected with aforementioned control gear (42) from aforementioned throttling tube (39) side, the protecting component (53) with the separation board (53a) between aforementioned wire of being located in (51) and the throttling tube (39) is installed on the aforementioned valve body (36).
2. Throttle valve device according to claim 1, it is characterized in that with hawser lateral part (55), constitute throttle valve hawser (41), be wound on the aforementioned throttling tube (39) from an end of the hawser inside portion (56) that an end of hawser lateral part (55) is drawn, be connected with it, the cable supports portion (53b) of supporting this hawser lateral part (55) with orientation type is integrally formed with aforementioned protecting component (53).
3. Throttle valve device according to claim 1 and 2, it is characterized in that can installing/dismounting mode joint part (49) that the outside joiner (50) that is connected with aforementioned wire (51) is installed be integrally formed on aforementioned control box (43) according to mode in the face of aforementioned throttling tube (39) side, the mode that the direction that aforementioned separation board (53a) is installed on aforementioned joint part (49) according to said external joiner (50) is tabular extension forms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002348284 | 2002-11-29 | ||
| JP2002348284A JP4021310B2 (en) | 2002-11-29 | 2002-11-29 | Throttle body device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508421A true CN1508421A (en) | 2004-06-30 |
| CN1291151C CN1291151C (en) | 2006-12-20 |
Family
ID=32751239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310113672 Expired - Fee Related CN1291151C (en) | 2002-11-29 | 2003-11-19 | Throttle valve device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4021310B2 (en) |
| CN (1) | CN1291151C (en) |
| IT (1) | ITTO20030883A1 (en) |
| TW (1) | TWI235195B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344040B (en) * | 2007-07-09 | 2014-09-10 | 光阳工业股份有限公司 | Configuration construction of vehicle engine electronic control unit |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4138466B2 (en) * | 2002-11-29 | 2008-08-27 | 本田技研工業株式会社 | Motorcycle |
| JP5184503B2 (en) * | 2009-12-24 | 2013-04-17 | 本田技研工業株式会社 | Saddle riding vehicle |
| JP5625574B2 (en) * | 2010-07-16 | 2014-11-19 | スズキ株式会社 | Accelerator position sensor arrangement structure for motorcycles |
| JP5856215B2 (en) * | 2014-04-02 | 2016-02-09 | 本田技研工業株式会社 | Saddle riding vehicle |
| TWI554678B (en) * | 2015-12-01 | 2016-10-21 | Kwang Yang Motor Co | Engine throttle body structure |
| JP2022154559A (en) * | 2021-03-30 | 2022-10-13 | 日立Astemo株式会社 | Air suction control device |
-
2002
- 2002-11-29 JP JP2002348284A patent/JP4021310B2/en not_active Expired - Fee Related
-
2003
- 2003-11-04 TW TW92130725A patent/TWI235195B/en not_active IP Right Cessation
- 2003-11-07 IT ITTO20030883 patent/ITTO20030883A1/en unknown
- 2003-11-19 CN CN 200310113672 patent/CN1291151C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344040B (en) * | 2007-07-09 | 2014-09-10 | 光阳工业股份有限公司 | Configuration construction of vehicle engine electronic control unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1291151C (en) | 2006-12-20 |
| JP4021310B2 (en) | 2007-12-12 |
| ITTO20030883A1 (en) | 2004-05-30 |
| JP2004183493A (en) | 2004-07-02 |
| TWI235195B (en) | 2005-07-01 |
| TW200415302A (en) | 2004-08-16 |
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