CN1109187C - Controlling device for air suction quantity of engine - Google Patents
Controlling device for air suction quantity of engine Download PDFInfo
- Publication number
- CN1109187C CN1109187C CN00122698A CN00122698A CN1109187C CN 1109187 C CN1109187 C CN 1109187C CN 00122698 A CN00122698 A CN 00122698A CN 00122698 A CN00122698 A CN 00122698A CN 1109187 C CN1109187 C CN 1109187C
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- throttle
- valve body
- air
- aspirating unit
- air throttle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
- F02D9/16—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being rotatable
Abstract
To achieve a reduction in intake resistance in an intake amount control apparatus having a throttle body such that in a fully open state of the throttle valve, the valve is not present in an intake path of the throttle body. Solution A throttle body 11 is provided with a fitting hole 18 having a diameter larger than a diameter of an intake path 12 and orthogonal to an axial line X of the intake path 12, the fitting hole 18 is fitted with a rotary type throttle valve 20 for rotationally moving between a fully closed position and a fully open position and the throttle valve 20 is provided with a valve hole 27 coinciding with the intake path 12 at the fully open position.
Description
Technical field
The present invention relates to the improvement of motor air suction capacity controller.The air suction capacity controller of this motor is made of throttle-valve body and air throttle.Throttle-valve body has the aspirating unit that links to each other with the intakeport of motor, and air throttle is located on this aspirating unit, is used to regulate the gettering quantity of motor.
Background technique
Existing motor air suction capacity controller, the form that for example has Japanese kokai publication hei 10-47520 communique to disclose.
In this existing motor air suction capacity controller, adopt the butterfly air throttle, the thin board type valve plate that it is configured in the aspirating unit is fixed on the valve shaft, and this valve shaft connects the aspirating unit of throttle-valve body along transverse direction.In this device, even when valve plate is parallel to the aspirating unit axis, during the full-gear of air throttle, because diameter is present in the aspirating unit greater than the valve shaft of valve plate thickness of slab, so, cause inhalation resistance to increase, the output performance of motor is more or less influenced.In addition, in full-shut position, connect airtight with aspirating unit in order to make full week of valve plate, must implement high-precision processing, the enforcement of this machining accuracy is difficulty very.And so, valve plate is eaten into the aspirating unit inner face easily and is blocked, and the result is very little open mode at the closed position valve plate of air throttle.But, even the very little aperture of such valve plate also has deviation on machining accuracy, therefore, walking around on air throttle and the bypass that aspirating unit is connected, the idle running controlling mechanism of open and close controlling air throttle is being set, regulate and dally when using gettering quantity, in this regulated quantity, produce big deviation.
Summary of the invention
The present invention makes in view of the above problems, and its purpose is to provide a kind of air suction capacity controller of motor, in the device of the present invention, when the air throttle full-gear, make this valve not in the aspirating unit of throttle-valve body, can lower inhalation resistance, improve the output performance of motor.In addition, air throttle can not block during full cut-off.
To achieve these goals, motor air suction capacity controller of the present invention is made of throttle-valve body and air throttle, and throttle-valve body has the aspirating unit that links to each other with the intakeport of motor, and air throttle is located on this aspirating unit, is used to regulate the gettering quantity of motor; Its 1st feature is, on throttle-valve body, be provided with diameter greater than aspirating unit and with the embedding hole of aspirating unit axis orthogonal, chimericly in this embedding hole can between full close position and fully open position, rotate the rotary-type air throttle that moves, make the bottom surface of aspirating unit of following and throttle-valve body of air throttle consistent; When being provided with on this air throttle and the valve opening that coincide of aspirating unit at its fully open position, with valve opening make the one side when the standard-sized sheet towards below open incision-like.
According to the 1st feature, rotary-type air throttle, constant with the chimeric status of the embedding hole of throttle-valve body from the full cut-off to the full-gear, so, even at full close position, can not resemble yet and block the existing butterfly air throttle.And when the motor start, under its intake negative-pressure effect, air throttle relies on the downstream side of aspirating unit, connect airtight with a side of embedding hole, so, can stop air to leak from embedding hole, can obtain the good full-shut position of air throttle.
In addition, when the air throttle standard-sized sheet, its valve opening and aspirating unit coincide, and do not have any obstacle in the aspirating unit, form continuous aspirating unit, so, can reduce the inhalation resistance of aspirating unit, the output performance of raising motor significantly.
In addition because air throttle is rotary-type, so the area that this valve and throttle-valve body are in contact with one another is big, dispel the heat and be subjected to hot well.
The 2nd feature of the present invention is that above-mentioned throttle-valve body is a synthetic resin system.
According to the 2nd feature, the friction factor of the embedding hole inner face of throttle-valve body is little, and the rotation that is entrenched in the air throttle in this embedding hole is easy, that is, can open and close trippingly.
The 3rd feature of the present invention is that rotary-type air throttle is a synthetic resin system.
According to the 3rd feature, the surface of revolution friction factor of air throttle is little, and air throttle is easy with respect to the rotation of throttle-valve body, that is, can open and close trippingly.
The present invention also has the 4th feature except the 1st feature, the 4th feature is on air throttle, directly to connect the gyrator of the solar term sensor that detects its aperture.
According to the 4th feature, the available section gas sensor accurately detects the aperture of air throttle.
In addition, the present invention also has the 5th feature except the 1st feature, and the 5th feature is that the opening direction of air throttle is the direction of the bottom of air throttle towards the aspirating unit downstream side.
According to the 5th feature, when the middle aperture of air throttle, the bottom of the embedding hole of throttle-valve body is exposed to aspirating unit, even accumulate in the bottom of this embedding hole because of air-breathing blowback will make fuel, owing in valve opening, descend obliquely from aspirating unit inlet leaked-in air, along the bottom surface of embedding hole with fuel toward the diffluence of aspirating unit downstream, so, can prevent that fuel from accumulating in the bottom of embedding hole.Therefore, can avoid influence to the air fuel ratio of mixed gas.
In addition, the present invention also has the 6th feature, the 6th feature to be except the 1st feature, also is provided with the auxiliary aspirating unit towards the valve opening opening, and this auxiliary aspirating unit runs through throttle-valve body and air throttle.
According to the 6th feature, because the part of auxiliary aspirating unit is formed on the air throttle, so the auxiliary aspirating unit that is formed on the throttle-valve body is few, easily forming belt is assisted the throttle-valve body of aspirating unit.
Description of drawings
Fig. 1 is the vertical profile profile of motor that has the present invention the 1st embodiment's air suction capacity controller.
Fig. 2 is the profile of above-mentioned air suction capacity controller.
Fig. 3 is the 3-3 line sectional view of Fig. 2.
Fig. 4 is the exploded view corresponding with Fig. 3.
Fig. 5 is the 5-5 line sectional view of Fig. 3.
Fig. 6 is the 6-6 line sectional view of Fig. 3.
Fig. 7 is the 7-7 line sectional view of Fig. 3.
Fig. 8 is the Action Specification figure of air throttle.
Fig. 9 is an air suction capacity controller performance diagram of the present invention.
Figure 10 is the sectional view corresponding with Fig. 8, represents the 2nd embodiment of the present invention.
Figure 11 is the sectional view corresponding with Fig. 8, represents the 3rd embodiment of the present invention.
Embodiment
Below, with reference to description of drawings one embodiment of the invention.
Fig. 1～Fig. 9 represents the 1st embodiment of the present invention.Fig. 1 is the vertical profile profile that has the motor of air suction capacity controller of the present invention.Fig. 2 is the profile of air suction capacity controller of the present invention.Fig. 3 is the 3-3 line sectional view of Fig. 2.Fig. 4 is the exploded view corresponding with Fig. 3.Fig. 5 is the 5-5 line sectional view of Fig. 3.Fig. 6 is the 6-6 line sectional view of Fig. 3.Fig. 7 is the 7-7 line sectional view of Fig. 3.Fig. 8 is the Action Specification figure of air throttle.Fig. 9 is an air suction capacity controller performance diagram of the present invention.Figure 10 is the sectional view corresponding with Fig. 8, represents the 2nd embodiment of the present invention.Figure 11 is the sectional view corresponding with Fig. 8, represents the 3rd embodiment of the present invention.
The 1st embodiment of the present invention is described earlier.Among Fig. 1, motor E is the four stroke engine of motorcycle-use, have head towards vehicle front, slightly be the cylinder block 1 and the cylinder head 2 of flat-hand position.On cylinder head 2, be provided with intakeport 3, relief opening 4, Aspirating valves 5, outlet valve 6 and open and close the active valve mechanism 7 of these valves.Above the cylinder head 2, engaging the sucking pipe 8 that is communicated with intakeport 3 at this.This sucking pipe 8 is synthetic resin systems, is formed with supporting hub 8c in the one side, and electro-magneto fuel injector 9 is installed on this supporting hub 8c by valve seat 91.The burner oil that comes out from this Fuelinjection nozzle 9 is by being formed on the intakeport 3 that fuel ejiction opening 96 on the sucking pipe 8 sprays to cylinder head 2.
The 1st of valve seat 91 keeps the tube 91a of portion, the 2nd maintenance tube 91b of portion, joint 91c and hose coupling 92 usefulness synthetic resin unitary mouldings and constitutes.The 1st keeps the base portion of tube 91a of portion and Fuelinjection nozzle 9 chimeric.The 2nd keeps the front end with fuel inlet of tube 91b of portion and Fuelinjection nozzle 9 chimeric.Joint 91c is combined in two integratedly and keeps between the tube 91a of portion, the 91b.Hose coupling 92 keeps from the 2nd that the tube 91b's of portion is one side-prominent.Keep the tube 91a of portion the 1st, burying the metallic ring 93 that combines with above-mentioned supporting hub 8C underground.Hose coupling 92 is connecting fuel hose 94, and this fuel hose 94 is connected with the fuel-injection pump that figure does not show.
Upstream extremity at the sucking pipe 8 that Fuelinjection nozzle 9 is housed is connecting air suction capacity controller 10.That is, air suction capacity controller 10 is the upstream that is configured in fuel ejiction opening 96 in the suction system of motor E.
Below, referring to figs. 1 through Fig. 3 this air suction capacity controller 10 is described.Air suction capacity controller 10 has the throttle-valve body 11 of synthetic resin system (for example PPS system).This throttle-valve body 11 has the downward-sloping slightly aspirating unit in downstream side 12, and its end, upstream hole enlargement funnel forms annular recess 13a on the inner peripheral surface of its downstream end.
In the end, funnel-like upstream of aspirating unit 12, the aspirating air pipe 95 by rubber system is connecting air-strainer (figure does not show).The housing of aspirating air pipe 95 and air-strainer also is a synthetic resin system, if they and throttle-valve body 11 are configured as one, can make simple structureization.At this moment, throttle-valve body 11 is configured in the air-strainer, also can realizes the miniaturization of constructing.
On the throttle-valve body 11, be parallel to aspirating unit 12 ground and be provided with, also form annular recess 13b at the downstream end inner peripheral surface of this straight shape path 33 at straight shape path 33 its downstream side end face opening, the auxiliary aspirating unit 34 of aftermentioned.
Sucking pipe 8 has air-breathing road 8a and auxiliary air-breathing road 8b.Air-breathing road 8a is communicated with aspirating unit 12 with the intakeport 3 of motor E.Auxiliary air-breathing road 8b is communicated with straight shape path 33 with the suction booster 36 that launched machine E drives.With these air-breathing road 8a and auxiliary air-breathing road 8b accordingly, form a pair of chimeric tube 26a of portion, 26b in the upstream-side-end of sucking pipe 8, these chimeric tube 26a of portion, 26b are entrenched in above-mentioned annular recess 13a, the 13b by sealed member 14a, 14b respectively.
On throttle-valve body 11 and the sucking pipe 8, form the adpting flange 15,16 of mutual butt, they mutually combine by the connecting ring 17 of コ font section.Like this, throttle-valve body 11 is connected on the sucking pipe 8.At this moment, be contained in the chimeric tube 26a of portion of sucking pipe 8, sealed member 14a, the 14b of 26b periphery, connect airtight with the annular recess 13a of throttle-valve body 11, the inner peripheral surface of 13b, to keep airtight between throttle-valve body 11 and sucking pipe 8 inside, so, do not need each end face of two adpting flanges 15,16 is carried out fine finishing, not only can guarantee the airtight of 8 of throttle-valve body 11 and sucking pipes, and can reduce the thickness of two flanges 15,16, can make their joint miniaturization.
To shown in Figure 4, on throttle-valve body 11, with the axis X orthogonal ground of aspirating unit 12, be provided with the embedding hole 18 of diameter greater than aspirating unit 12, rotary-type air throttle 20 rotatably is entrenched in this embedding hole 18 as Fig. 2.This air throttle 20 also is synthetic resin system (for example 6/6 a nylon system).End at air throttle 20 forms flange 21, and this flange 21 is held under the arm by the stepped part 22 of throttle-valve body 11 and the stop ring 23 that is bonded on the throttle-valve body 11, and like this, the axle direction position of air throttle 20 is defined.
On throttle-valve body 11, form the annular ditch groove 24 with above-mentioned flange 21 adjacency, the sealed member 25 that connects airtight with the outer circumferential face of air throttle 20 is contained in this annular ditch groove 24.
On air throttle 20, form valve opening 27 with above-mentioned aspirating unit 12 same section configurations, this valve opening 27 is when the full close position (Fig. 8 (A)) of air throttle 20, misfit fully with aspirating unit 12, become obstructed state, when the fully open position (Fig. 8 (C)) of air throttle 20, coincide with sucking pipe 12, form continuous aspirating unit 12.
At an end of air throttle 20, forming the driving tube 39 that periphery has grooving 38, an end of the operation rope 30 that is engaging with grooving 38 is connected with this driving tube 39, and the other end is connected with the air throttle handle of the steering handle that figure does not show.Make the rotation of this air throttle handle and during draw operations rope 30, air throttle 20 can be rotated to fully open position from above-mentioned full close position.
On air throttle 20, form vertical hole 31 and cross-drilled hole 32.Valve opening 27 is led to from the other end of valve in vertical hole 31.Cross-drilled hole 32 connects a sidewall in this vertical hole 31.Be communicated with this cross-drilled hole 32 and, be formed on the throttle-valve body 11 at the straight shape path 33 of the upstream side end face opening of throttle-valve body 11.Constitute auxiliary aspirating unit 34 by these vertical holes 31, cross-drilled hole 32 and straight shape path 33.Should auxiliary aspirating unit 34 as previously mentioned, the auxiliary air-breathing road 8b by sucking pipe 8 is connected with suction booster 36.
In the other end of air throttle 20, welding the synthetic resin cap 38 of the above-mentioned vertical hole of locking 31 opening portions, on this lid 38, form the coupling shaft 39 that lacks circle cross section, this coupling shaft 39 and air throttle 20 coaxial extensions.On this coupling shaft 39, the connecting cylinder 41 of the gyrator 40r of chimeric the solar term sensor Sth that detects air throttle 20 apertures.
In addition, when throttle-valve body 11 is not had auxiliary air-breathing road 8b, coupling shaft 39 can be formed on the air throttle 20.
Connecting cylinder 41 is given the flexible crack of undergauge groove 42 as Fig. 3 and shown in Figure 6 in its front end formation, can not have the outer circumferential face that is entrenched in coupling shaft 39 with rocking.Between gyrator 40r and throttle-valve body 11, connecting the Returnning spring 37 that constitutes by torsion-coil spring, this Returnning spring 37 pushes air throttle 20 by gyrator 40r toward closing direction.Therefore, this Returnning spring 37 is air throttle 20 and the common Returnning spring of gyrator 40r.
Form the control unit assembly department 43 of peviform on throttle-valve body 11, electronic control unit U is installed in above it.The unit box 46 that electronic control unit U is configured in the device substrate 45 at these sensor base plate 44 back sides and accommodates these substrates 44,45 by the sensor base plate 44 relative with the bottom surface of control unit assembly department 43, overlappingly constitutes.
On sensor base plate 44, be provided with bearing hole 49 and stator 40s.The central shaft 48 of the gyrator 40r of air throttle sensor Sth rotatably is entrenched in the bearing hole 49.Stator 40s the angle of swing of gyrator 40r, be that the aperture of air throttle 20 is transformed to electric signal by brush 50.In addition, supercharging B/P EGR Back Pressure Transducer EGR Spb is installed on sensor base plate 44.This supercharging B/P EGR Back Pressure Transducer EGR Spb is passed in the detection hole 47 of aspirating unit 12 openings in air throttle 20 downstreams, and the supercharging negative pressure of detection of engine E is the detection of engine load, and it is transformed to electric signal.
In solar term sensor Sth, also the subtend face of gyrator 40r and stator 40s can be exchanged, brush 50 is arranged on stator 40s side.In addition, also can adopt Hall unit and magnet, Sth constitutes the non-contact pattern with the solar term sensor.
Dash forward below sensor base plate 44 and establishing positive shape splicing ear 51a, connected cloudy shape splicing ear 51b is arranged on the bottom surface of control unit assembly department 43.On this moon shape splicing ear 51b, connecting lead 52.This lead 52 links to each other with the inhalation temperature sensor St of aspirating unit 12 inlets that face throttle-valve body 11.This inhalation temperature sensor St, lead 52 and cloudy shape splicing ear 51b bury underground within it when throttle-valve body 11 is shaped.Like this, can not need wiring operation between inhalation temperature sensor St and electronic control unit U.
On sensor base plate 44, burying stator 40s, the supercharging B/P EGR Back Pressure Transducer EGR Spb of solar term sensor Sth and the cloudy shape splicing ear 80b that links to each other with positive shape splicing ear 51a etc. underground.
On device substrate 45, setting up the control of the positive shape splicing ear 80a that is connected with above-mentioned cloudy shape splicing ear 80b, the fuel injection amount that is connected with this sun shape splicing ear 80a and controlling with the test of element 83, this electronic control unit U or the LED indicator 84 that failure warning is used with element 82, ignition timing with element 81, the control of fuel injection timing.Device substrate 45 is in they are molded in unit box 46.Like this, needn't be arranged on indicator 84 on special instrument panel etc., its distribution can not wanted yet.
Form in a side of unit box 46 and to couple box 85, portion is setting the coupling terminal 86 (only representing one of them among the figure) that links to each other with above-mentioned each element within it, constitutes coupling halfbody 87a.Like this, electronic control unit U has coupling halfbody 87a integratedly, does not need the distribution between them, can reduce number of parts.
On this coupling halfbody 87a, connecting another coupling halfbody 87b, the splicing ear that this coupling halfbody 87b has various sensors such as external power supply, engine rotation sensor Sne, crank position sensor Sc and links to each other with ignition timing control gear Ig and various control machine.
Above-mentioned fuel injection amount control unit 81 and the control of fuel injection timing also can be connected with the solenoid of above-mentioned electro-magneto fuel injector 9 by above-mentioned two coupling halfbody 87a, 87b with element 82, make their actions.But person shown in the figure is that lead 88,89 (this lead 88,89 is controlled the carry-out part of using element 82 to fuel injection amount control with element 81 and fuel injection timing, is connected with the solenoid of Fuelinjection nozzle 9) is embedded in throttle-valve body 11 and the sucking pipe 8.At this moment, on the mating face of throttle-valve body 11 and sucking pipe 8, the cloudy shape splicing ear 90b and the positive shape splicing ear 90a that connect 88,89 in two leads are set respectively, in addition, a pair of splicing ear same with it are set also on the mating face of sucking pipe 8 and Fuelinjection nozzle 9.Like this, can in the part assembling, be electrically connected, can improve assembling performance and reduce number of parts.In addition,, then splicing ear can be do not wanted yet, number of parts can be reduced more if throttle-valve body 11 and aspirating unit 12 usefulness synthetic resin are formed as one.
When electronic control unit U installs on throttle-valve body 11, in advance sensor base plate 44 is overlapped device substrate 45 below, splicing ear 80a, 80b are interconnected.Unit box 46 joggles are entrenched on the control unit assembly department 43 of throttle-valve body 11, then splicing ear 51a, the 51b of sensor base plate 44 and throttle-valve body 11 interconnect again, and weld at the abutted surface of this state with unit box 46 and control unit assembly department 43.In addition, unit box 46 and control unit assembly department 43 also can like this, can carry out inner parts inspect, the maintenance of electronic control unit U with combinations separably mutually such as clip or primary screws.
Among Fig. 3 and Fig. 7, be provided with bypass 53 on throttle-valve body 11, this bypass 53 is walked around its two ends, air throttle 20 ground and is connected with aspirating unit 12.Fast idle device 55 is installed on throttle-valve body 11, and the piston type valve body 54 of this fast idle device 55 is faced with this bypass 53.
On throttle-valve body 11, be provided with valve guide hole 56, inlet 57 and room of outlet 58.Valve body 54 is entrenched in the valve guide hole 56 slidably.Inlet 57 is at the end face opening of this valve guide hole 56.Room of outlet 58 is communicated with a side of valve guide hole 56 by several apertures 59 that extend along the glide direction of valve body 54.Bypass 53 is made of with the bypass downstream portion 53b that is connected with aspirating unit 12 downstream sides the bypass upstream portion 53a that is connected with aspirating unit 12 upstream sides.The downstream of bypass upstream extremity 53a is connected with above-mentioned inlet 57, and the upstream extremity of bypass downstream portion 53b is connected with above-mentioned room of outlet 58.
When valve body 54 was mobile in valve guide hole 56, aperture group 59 aperture was regulated by the side of valve body 54, was flow through the gettering quantity of bypass 53 by these apertures group 59 aperture decision.
Fast idle device 55 is made of above-mentioned valve body 54 and temperature-sensitive actuation mechanism 60.This temperature-sensitive actuation mechanism 60 makes valve body 54 starts according to the temperature variation of motor E.This temperature-sensitive actuation mechanism 60 by housing 62, have round-ended cylinder shape wax to keep tool 63, wax box 65, take-off lever 68, have round-ended cylinder shape activation part 69, Returnning spring 70 and electric heater 71 to constitute.Housing 62 is chimeric to be fixed in the mounting hole 61 of throttle-valve body 11.Wax keeps tool 63 to be inlaid in this housing 62.The wax box 65 chimeric waxes that remain on keep in the tool 63, and wax 64 is being enclosed by its one.Take-off lever 68 is entrenched in wax box 65 1 bearing at end 66 slidably, the one end across packed-piston 67 and wax 64 in opposite directions, the other end protrudes in outside the wax box 65.The front end of the interior edge face of activation part 69 and take-off lever 68 joins, and is entrenched in the periphery of wax box 65 simultaneously slidably.Returnning spring 70 is pressed activation part 69 toward take-off lever 68 thrusters.Electric heater 71 is attached to wax and keeps on the tool 63.This electric heater 71 is in motor E starting back energising, with engine temperature rising the heating accordingly wax 64.
When cold, when the wax 64 in the wax box 65 is contraction state, under the elastic force effect of Returnning spring 70, activation part 69 retreats, and take-off lever 68 pushed in the wax box 65, when the heating of heater 71 was expanded wax 64, the elastic force of take-off lever 68 opposing Returnning springs 70 made activation part 69 advance towards valve body 54 sides.Therefore, valve body 54 increases aperture group 59 aperture when wax 64 shrinks, with the expansion of wax 64 correspondingly, reduce aperture group 59 aperture.
In addition, on throttle-valve body 11, be provided with the movable stop mechanism 77 of the closed position of can regulate valve body 54.This movable stop mechanism 77 is made of backstop bolt 78 and helical spring 79.Backstop bolt 78 connects above-mentioned inlet 57, is screwed on opposite to each other on the throttle-valve body 11 with the end face of valve body 54.Helical spring 79 is held under the arm between the head of backstop bolt 78 and throttle-valve body 11, prevents that backstop bolt 78 from touching.
Below, this embodiment's effect is described.
When motor E when starting and idle running, air throttle 20 makes valve opening 27 be positioned at the full close position of misfitting fully with aspirating unit 12 shown in Fig. 8 (A).This air throttle 20 is rotary-type, and is total owing to keep necessarily with the chimeric status of the embedding hole 18 of throttle-valve body 11, so, even this at full close position, also needn't worries to resemble set the existing butterfly air throttle.And when motor E moved, by the effect of its intake negative-pressure, air throttle 20 connected airtight with a side of embedding hole 18 near the downstream side of aspirating unit 12, so, can stop air to leak from embedding hole 18, can obtain the good full-shut position of air throttle 20.
When cold, in fast idle controlling device 55, because wax 64 contractions, so activation part 69 occupies going-back position by the elastic force of Returnning spring 70.At this state, the coupling shaft 74 of activation part 69 and valve body 54 by the move elastic force of spring 76 of sky, become the coupled condition that export-oriented flange 74a and inward flange 75a are joined mutually, so valve body 54 can remain on aperture group 59 the high aperture position of opening greatly by activation part 69.
When the full-shut position of air throttle 20 is piloted engine E, air is inhaled into motor E by bypass 53, its gettering quantity is controlled to be more amount by above-mentioned aperture group 59, so, this air and the fuel mix that ejects from Fuelinjection nozzle 9, the rich mixture of the comparison volume that is suitable for starting can be formed, the starting of motor E can be carried out conscientiously.In addition, when the warm-operation state of motor E, also similarly supply with the relatively mixed gas of volume,, can promote its warming-up so motor E obtains the fast idle rotation number to motor E with above-mentioned.
Along with the carrying out of warm-operation, when engine temperature rises, heater 71 heats waxes 64 thereupon, so wax 64 expands, the elastic force of opposing Returnning spring 70 advances activation part 69.Thereupon, valve body 54 is reduced aperture group 59 aperture by to the closing direction pushing, so the gettering quantity by bypass 53 reduces, like this, the fuel injection amount of Fuelinjection nozzle 9 is decrement thereupon also, so the fast idle rotation number reduces.
Then, when valve body 54 arrive the position that joins with backstop bolt 78, when promptly closing not busy position, aperture group 59 aperture becomes minimum, gettering quantity is also minimum.This minimum gettering quantity is guaranteed the idle commentaries on classics rotation number that motor E is common.Therefore,, just can change the closed position of valve body 54, regulate minimum gettering quantity, thereby idle commentaries on classics rotation number can be adjusted to required value as long as backstop bolt 78 is regulated with respect to valve body 54 advance and retreat.And the adjusting of minimum gettering quantity is to carry out than the adjusting of the aperture of the aperture group 59 on the much smaller bypass 53 of aspirating unit 12 by being located at diameter, so the fine adjustment of minimum gettering quantity does not need special masterful technique, can easily carry out.As previously mentioned, if rotary-type air throttle 20 is maintained at good full-shut position, the deviation of the regulated quantity of then above-mentioned fast idle device 55 and backstop bolt 78 will be eliminated or reduce, and can obtain the stable fast idle of motor E and common idle commentaries on classics state.
Then, wax 64 reexpands, activation part 69 readvances, coupling shaft 74 compresses the sky spring 76 of moving on one side, enter the attachment hole 75 of valve body 54 on one side deeply, so, at the state that valve body 54 is remained on predetermined closed position, the overexpansion of wax 64 is absorbed by move spring 76 of sky, can avoid producing excessive stress.
In addition, if replace wax 64 to make valve body 54 starts, then can carry out trickleer idle running control with linear solenoid.
When improving the output of motor E, draw operations rope 30, with air throttle 20 towards valve opening position rotation, at this moment, the valve opening 27 of air throttle 20 is presented on the aspirating unit 12, its aperture is increased, so can increase the gettering quantity of motor E.At this moment, the valve opening position of air throttle 20 as previously mentioned, the bottom of this valve 20 is towards the direction in the downstream side of aspirating unit 12, so, shown in Fig. 8 (B), when the middle aperture of air throttle 20, the bottom of the embedding hole 18 of throttle-valve body 11 is exposed to aspirating unit 12, even fuel will be accumulated in the bottom of this embedding hole 18 because of air-breathing blowback, but 27 medium dips ground descends in the hole from the inlet leaked-in air of aspirating unit 12, along the bottom surface of embedding hole 18 along with above-mentioned fuel flows together, so, can prevent that fuel from accumulating in the bottom of embedding hole 18.Therefore, can avoid influence to the change of the air fuel ratio of mixed gas.In addition, at this moment, the bottom surface of the valve opening 27 of air throttle 20 is the upward slope postures towards aspirating unit 12 downstreams, and sidesway is capable downstream can to stop fuel conscientiously.
Shown in Fig. 8 (C), when air throttle 20 rotated to fully open position, its valve opening 27 coincide with aspirating unit 12, no any obstacle exists in aspirating unit 12, forms continuous aspirating unit 12, so, can reduce the inhalation resistance of aspirating unit 12 significantly, improve the high output performance of motor E.
In addition, disposing fuel spraying hole 96 in throttle-valve body 11 downstream sides, the burner oil that comes out from Fuelinjection nozzle 9 is ejected into intakeport 3 by this hole 96, so, do not have inhalation resistance in the fuel supply system, this is particularly favourable during for the above-mentioned full cut-off of air throttle 20.In addition, owing to fuel does not pass through in the throttle-valve body 11, so, fuel can be suppressed to minimum degree to adhering to of tube wall, can prevent the change of air fuel ratio.
During this, the air from suction booster 36 is discharged supplies to motor E through auxiliary aspirating unit 34, improves its pack effectiveness, improves output more.Above-mentioned auxiliary aspirating unit 34, owing to be to be located on throttle-valve body 11 and the air throttle 20 towards valve opening 27 openings ground, so, as long as form auxiliary aspirating unit 34 at least towards throttle-valve body 11, promptly as long as form the path 33 of straight shape, easily forming belt is assisted the throttle-valve body 11 of aspirating unit 34.
When reducing the output of motor E, remove the tractive force to operation rope 30, air throttle 20 is got back to full close position under the rebounding force effect of Returnning spring 37, and motor E becomes idle commentaries on classics state once more.
In addition, because throttle-valve body 11 and air throttle 20 all are synthetic resin systems, the friction factor of their rotation chimeric surface is smaller, surface hardness is also lower, so, the easily early stage break-in of the surface of revolution of throttle-valve body 11 and air throttle 20, therefore, can carry out the switching of air throttle 20 trippingly, and, can make the air leakage rate of surface of revolution stable in early days.
And, because air throttle 20 is rotary-type, so the mutual surface of contact of throttle-valve body 11 and air throttle 20 is very big, can obtain good heat radiation and be subjected to hot.In addition, because their surface of contact is big,, can make the idle commentaries on classics stabilization of motor E so air throttle 20 is good at the closed of full close position.
Fig. 9 be expression in the air suction capacity controller 10 of the present invention the air throttle aperture and the performance diagram of gettering quantity relation, be chosen as circle, rice dumpling shape, the shape of falling the rice dumpling etc. by section configuration with aspirating unit 12 and valve opening 27, can obtain changing the curve of its characteristic.
In the running of such motor E, gyrator 40r and the solar term sensor Sth that air throttle 20 directly is being connected can detect the aperture of air throttle 20 exactly.In addition, fuel injection amount control element 81 in the electronic control unit 46, the control of fuel injection timing is controlled with element 83 with element 82 and ignition timing, accept solar term sensor Sth, supercharging B/P EGR Back Pressure Transducer EGR Spb, inhalation temperature sensor St, engine revolution is counted the electric signal of outputs such as sensor Sne and crank position sensor Sc, judge the operating condition of motor E at this moment, fuel injection amount control is controlled with element 82 with element 81 and fuel injection timing, the fuel injection amount and the injection timing of decision Fuelinjection nozzle 9, like this, make this valve 9 actions, ignition timing control determines ignition timings with element 83, like this, the ignition mechanism action that figure is not shown.
Have the sensor base plate 44 of solar term sensor Sth and supercharging B/P EGR Back Pressure Transducer EGR Spb, with have fuel injection amount control with element 81, the device substrate 45 of element 83 is used in the control of fuel injection timing with element 82 and ignition timing control, be housed in the single unit box 46, constitute electronic control unit U, and, owing to be installed on the control unit assembly department 43 of throttle-valve body 11, so, various sensor Sth, Spb and various control use element 81～83 by blocking, they can be arranged on the throttle-valve body 11 compactly, therefore, beyond throttle-valve body 11, needn't leave to the space that electronic control unit is used is set, can improve space efficiency, realize the miniaturization of control system, and the miniaturization of suction means.In addition, not only solar term sensor Sth and various control can be oversimplified with the distribution of 81～83 of elements, and can realize the unified distribution of the signaling line that various controls are counted sensor Sne with required power line of the action of elements 81～83 and engine revolution.Like this, distribution is oversimplified, and can reduce the influence of electromagnetic wave etc.
And because on air throttle 20, gyrator 40r directly is connected with solar term sensor Sth, so, can detect the aperture of air throttle 20 exactly.
In addition, because on the roomy back side of sensor base plate 44, setting various controls element 81～83 by device substrate 45, so, can freely not set various controls element 81～83 intrusively with solar term sensor Sth, supercharging B/P EGR Back Pressure Transducer EGR Spb, it is big that it is provided with degrees of freedom.
In addition, because sensor base plate 44 and device substrate 45 are combined into mutual separable layer-by-layer state, so, Miniaturizable, and can be installed in the various sensors on this sensor base plate 44 and the device substrate 45 and the specification of element according to machine change, the electronic control unit U of various characteristics can be provided at an easy rate.
In addition, because throttle-valve body 11 is synthetic resin systems, itself has insulating properties, therefore, can press from both sides and establish special insulating element ground installation electronic control unit U, and mounting construction is oversimplified.
Among the present invention the 2nd embodiment shown in Figure 10, with the valve opening 27 of rotary-type air throttle 20, become the one side when standard-sized sheet towards above the incision-like of open shape.Except this point, all the other are identical with previous embodiment.Among the figure, the part corresponding with previous embodiment annotated with same tag, and its explanation is omitted.
Among the present invention the 3rd embodiment shown in Figure 11, make the bottom surface of aspirating unit 12 of following and throttle-valve body 11 of rotary-type air throttle 20 consistent, and, with valve opening 27 become the one side when the standard-sized sheet towards below open incision-like.Except above-mentioned point, all the other are identical with previous embodiment, and among the figure, the part corresponding with previous embodiment annotated with same tag, and its explanation is omitted.The 3rd embodiment in the bottom surface of aspirating unit 12, does not form the recess of the chimeric embedding hole 18 of air throttle 20, can prevent that fuel from accumulating.
The present invention is not limited to the various embodiments described above, can do various design alterations in the scope that does not break away from its main idea.For example, also only a side of throttle-valve body 11 and air throttle 20 are synthetic resin systems.
As mentioned above, the 1st feature according to the present invention, motor air suction capacity controller of the present invention, constitute by throttle-valve body and air throttle, throttle-valve body has the aspirating unit that links to each other with the intakeport of motor, and air throttle is located on this aspirating unit, is used to regulate the gettering quantity of motor; On throttle-valve body, be provided with diameter greater than aspirating unit and with the embedding hole of aspirating unit axis orthogonal, chimericly in this embedding hole can between full close position and fully open position, rotate the rotary-type air throttle that moves, when being provided with on this air throttle at its fully open position with the identical valve opening of aspirating unit.Therefore, rotary-type air throttle, constant with the chimeric status of the embedding hole of throttle-valve body from the full cut-off to the full-gear, even can not block at full close position yet.And when the motor start, under its intake negative-pressure effect, air throttle relies on the downstream side of aspirating unit, connect airtight with a side of embedding hole, so, can stop air to leak from embedding hole, can obtain the good full-shut position of air throttle.In addition, when the air throttle standard-sized sheet, its valve opening and aspirating unit coincide, and do not have any obstacle in the aspirating unit, form continuous aspirating unit, so, can reduce the inhalation resistance of aspirating unit, the output performance of raising motor significantly.Because air throttle is rotary-type, so the area that this valve and throttle-valve body are in contact with one another is big, dispel the heat and be subjected to hot well.
According to the 2nd feature of the present invention, above-mentioned throttle-valve body is a synthetic resin system.So the friction factor of the embedding hole inner face of throttle-valve body is little, can carry out the switching of air throttle trippingly.
According to the 3rd feature of the present invention, rotary-type air throttle is a synthetic resin system.So the surface of revolution friction factor of air throttle is little, can carry out the switching of air throttle trippingly.
According to the 4th feature of the present invention, on air throttle, directly connecting the gyrator of the solar term sensor that detects its aperture.So the available section gas sensor accurately detects the aperture of air throttle.
According to the 5th feature of the present invention, the opening direction of air throttle is the direction of the bottom of air throttle towards the aspirating unit downstream side.So, when the middle aperture of air throttle, the bottom of the embedding hole of throttle-valve body is exposed to aspirating unit, even accumulate in the bottom of this embedding hole because of air-breathing blowback will make fuel, owing in valve opening, descend obliquely from aspirating unit inlet leaked-in air, along the bottom surface of embedding hole with fuel toward the diffluence of aspirating unit downstream, so, can prevent that fuel from accumulating in the bottom of embedding hole.Therefore, can avoid influence to the air fuel ratio of mixed gas.
According to the 6th feature of the present invention, also be provided with auxiliary aspirating unit towards the valve opening opening, this auxiliary aspirating unit runs through throttle-valve body and air throttle.So the auxiliary aspirating unit that is formed on the throttle-valve body is few, easily forming belt is assisted the throttle-valve body of aspirating unit.
Claims (6)
1. the air suction capacity controller of motor, constitute by throttle-valve body (11) and air throttle (20), this throttle-valve body (11) has the aspirating unit (12) that links to each other with the intakeport (3) of motor (E), this air throttle (20) is located on this aspirating unit (12), the gettering quantity that is used to regulate motor (E); It is characterized in that, on throttle-valve body (11), be provided with diameter greater than aspirating unit (12) and with the embedding hole (18) of axis (X) orthogonal of aspirating unit (12), chimericly in this embedding hole (18) can between full close position and fully open position, rotate the rotary-type air throttle (20) that moves, make the bottom surface of aspirating unit (12) of following and throttle-valve body (11) of air throttle (20) consistent; When being provided with on this air throttle (20) and the valve opening (27) that coincide of aspirating unit (12) at its fully open position, with valve opening (27) make the one side when the standard-sized sheet towards below open incision-like.
2. the air suction capacity controller of motor as claimed in claim 1 is characterized in that, throttle-valve body (11) is a synthetic resin system.
3. the air suction capacity controller of motor as claimed in claim 1 is characterized in that, air throttle (20) is a synthetic resin system.
4. the air suction capacity controller of motor as claimed in claim 1 is characterized in that, on air throttle (20), is directly connecting the gyrator (40r) of the solar term sensor (40) that detects its aperture.
5. the air suction capacity controller of motor as claimed in claim 1 is characterized in that, the opening direction of air throttle (20) is the direction of the bottom of air throttle (20) towards aspirating unit (12) downstream side.
6. the air suction capacity controller of motor as claimed in claim 1 is characterized in that, also is provided with towards the auxiliary aspirating unit (34) of valve opening (27) opening, and this auxiliary aspirating unit (34) runs through throttle-valve body (11) and air throttle (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25090899A JP2001073813A (en) | 1999-09-03 | 1999-09-03 | Intake amount control device for engine |
| JP250908/1999 | 1999-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1287218A CN1287218A (en) | 2001-03-14 |
| CN1109187C true CN1109187C (en) | 2003-05-21 |
Family
ID=17214824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00122698A Expired - Fee Related CN1109187C (en) | 1999-09-03 | 2000-08-16 | Controlling device for air suction quantity of engine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1081357B1 (en) |
| JP (1) | JP2001073813A (en) |
| CN (1) | CN1109187C (en) |
| ES (1) | ES2250087T3 (en) |
| ID (1) | ID27143A (en) |
| TW (1) | TW486556B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236393A1 (en) * | 2002-08-08 | 2004-03-04 | Pierburg Gmbh | intake duct system |
| JP4032906B2 (en) | 2002-09-30 | 2008-01-16 | マツダ株式会社 | Multi-cylinder engine intake system |
| JP4154411B2 (en) | 2005-08-29 | 2008-09-24 | 株式会社ケーヒン | Engine intake system |
| CN102235248B (en) * | 2010-04-23 | 2014-03-19 | 上海奥众汽车部件制造有限公司 | Axial positioning control mechanism for electric spray throttle valve body of automobile |
| DE112018004393T5 (en) * | 2017-09-26 | 2020-05-14 | Yamada Manufacturing Co., Ltd. | Valve device |
| US11555468B2 (en) | 2019-01-07 | 2023-01-17 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Cylinder head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5666988A (en) * | 1996-02-06 | 1997-09-16 | Siemens Electric Limited | Throttle shaft and plate construction |
| US5749335A (en) * | 1996-07-15 | 1998-05-12 | Ford Global Technologies, Inc. | Barrel throttle valve |
| US5881695A (en) * | 1995-02-01 | 1999-03-16 | Ab Elektronik Gmbh | Throttle valve system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2757569B1 (en) * | 1996-11-08 | 2001-12-07 | Thuliez Jean Luc | INTAKE DEVICE FOR EXPLOSION ENGINE |
| EP0856649B1 (en) * | 1997-01-31 | 2003-07-09 | Yamaha Hatsudoki Kabushiki Kaisha | Four-cycle engine |
| JPH10252509A (en) * | 1997-03-14 | 1998-09-22 | Nissan Motor Co Ltd | Resin-made throttle valve device and manufacture thereof |
| JP3952229B2 (en) * | 1997-11-07 | 2007-08-01 | 日本ウォルブロー株式会社 | Membrane vaporizer |
-
1999
- 1999-09-03 JP JP25090899A patent/JP2001073813A/en active Pending
-
2000
- 2000-08-16 CN CN00122698A patent/CN1109187C/en not_active Expired - Fee Related
- 2000-08-24 EP EP20000402352 patent/EP1081357B1/en not_active Expired - Lifetime
- 2000-08-24 ES ES00402352T patent/ES2250087T3/en not_active Expired - Lifetime
- 2000-08-31 TW TW89117759A patent/TW486556B/en not_active IP Right Cessation
- 2000-09-01 ID IDP20000744D patent/ID27143A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881695A (en) * | 1995-02-01 | 1999-03-16 | Ab Elektronik Gmbh | Throttle valve system |
| US5666988A (en) * | 1996-02-06 | 1997-09-16 | Siemens Electric Limited | Throttle shaft and plate construction |
| US5749335A (en) * | 1996-07-15 | 1998-05-12 | Ford Global Technologies, Inc. | Barrel throttle valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1287218A (en) | 2001-03-14 |
| EP1081357B1 (en) | 2005-10-19 |
| JP2001073813A (en) | 2001-03-21 |
| TW486556B (en) | 2002-05-11 |
| EP1081357A2 (en) | 2001-03-07 |
| ES2250087T3 (en) | 2006-04-16 |
| EP1081357A3 (en) | 2001-10-10 |
| ID27143A (en) | 2001-03-08 |
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Granted publication date: 20030521 Termination date: 20100816 |