CN1030461A - The fuel delivery system of internal-combustion engine - Google Patents

The fuel delivery system of internal-combustion engine Download PDF

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Publication number
CN1030461A
CN1030461A CN 88102429 CN88102429A CN1030461A CN 1030461 A CN1030461 A CN 1030461A CN 88102429 CN88102429 CN 88102429 CN 88102429 A CN88102429 A CN 88102429A CN 1030461 A CN1030461 A CN 1030461A
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CN
China
Prior art keywords
air
fuel
detection piece
flow
valve
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Pending
Application number
CN 88102429
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Chinese (zh)
Inventor
雷奇阿德·大卫·阿克英斯
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Collins Motor Corp Ltd
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Collins Motor Corp Ltd
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Publication of CN1030461A publication Critical patent/CN1030461A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/30—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
    • F02M69/36—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages
    • F02M69/40—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using variably controlled air pressure, e.g. by modifying the intake air vacuum signal acting on the fuel metering device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
    • F02M69/18—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air
    • F02M69/22—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air the device comprising a member movably mounted in the air intake conduit and displaced according to the quantity of air admitted to the engine

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

The air-flow of inflow engine suction tude is detected by the air-flow detection piece, and the air-flow detection piece can be revolted spring and displacement in suction tude taper shell.The motion of air-flow detection piece makes a cam produce corresponding motion, the position of cam follower control fuel valve, thus controlled the fuel that flows to fuel nozzle.

Description

The fuel delivery system of internal-combustion engine
The invention relates to the fuel delivery system of this class internal-combustion engine, this internal-combustion engine has the choke valve that can artificially handle at its inlet tube and inlet tube upstream extremity, under the air-flow effect that enters motor, overcome restoring force and the air-flow detection piece of displacement with one, the motion of detection piece then again the driving fuel controlling device to increase or to reduce the fuel of inflow engine respectively.
According to an aspect of the present invention, the fuel delivery system of internal-combustion engine comprise the suction tude of a common choke valve that has an artificial manipulation and in suction tude with respect to the air-flow detection piece of choke valve displacement, the variation of air-flow makes detection piece resistance restoring force and moves, to change useful area by the detection piece air-flow, also comprise a fuel flow control valve with a movable valve member, the position of air-flow detection piece is depended in the position of movable valve member, thereby is characterised in that the proportional device of air-flow pressure drop on fuel pressure drop and the air-flow detection piece on the control fuel flow control valve.
The embodiment of fuel delivery system of the present invention with reference to the accompanying drawings, method by way of example is described below, wherein:
Fig. 1 schematically shows a fuel delivery system, and its most of parts are illustrated by longitudinal profile.
Fig. 2 shows the suction tude after the change;
Fig. 3 is the sectional view that III-the III line is got along Fig. 2;
Fig. 4 is the sectional view that IV-the IV line is got along Fig. 3;
Fig. 5 shows the detailed structure of Fig. 3 with the ratio of amplifying;
Fig. 6 shows the remodeling of Fig. 3.
With reference to Fig. 1, by an air-flow detection piece 2, air-flow detection piece 2 comprises the plectane of a belt length sleeve along the air of the direction inflow engine suction tude 1 of arrow, and long sleeve can slide on by the guide rod 3 of spider 3a supporting.Plectane is bearing on the end of rod member 4, and rod member 4 is installed on the measuring staff 5 by bearing pin 6.In the direction circular cross section along air-flow became the shell 7 of taper outwardly, air-flow detection piece 2 moved therein.At each end, measuring staff 5 and passes its sidewall by journal rest in the enclosure.At one end, measuring staff is supporting a rod member (not shown), is connecting a spring (not shown) on the rod member, and this spring provides a restoring force for detection piece 2 by rod member 4.
In the downstream of air-flow detection piece 2, there is one traditional can artificially handle butterfly throttle valve door 8.
In the upstream of detection piece 2, an air filter F can be arranged.
Be fixed with a cam 9 by a pin 10 on the measuring staff 5, it drives rod member 13 by being installed in rotation on by the cam follower 11 on the axle 12 of rod member 13 supportings.On the relative end of rod member 13, be processed with the rounded ends and 14 engagements of this groove of 14, one adjustable fulcrum screws 15 of a partial sphere groove.Also be processed with a groove 16 between the two end part of rod member 13, it has held a rounded ends of push rod 17, a groove 18 engagements on another rounded ends of push rod 17 and the fuel adjusting part 19 that is upwards pushed away by spring 20.Adjusting element 19 comprises a piston, is an annular wall 21 in the upper end of piston, cuts out triangular groove 23A on annular wall, 23B etc., and its quantity equals the quantity of fuel delivery nozzle, and preferably equals the quantity of cylinder.On casing 24, each groove is all processed a corresponding hole 27A, 27B, the adjustment hole that acts as a fuel, its size is according to square variation of the displacement of adjusting element 19.Part 27 imports corresponding outlet 28.
Each cylinder is preferably with an intake manifold 62, wherein, at adjacent engine suction port place a fuel nozzle is installed.Each nozzle comprises that one is threaded in housing 63 on the intake manifold by screw thread 64, a fuel inlet pipe 65 is installed on housing 63, this inlet duct is connected with one of outlet 28 and in housing 63 inside, extends to contiguous fuel jet orifice 66 places with the diameter that reduces.What center on a part of housing 63 is an air feed cover 67, and it has an inside ringed groove that is connected to the air cavity in the housing 63 by hole 68.Pipe joint 69 allows air to enter housing from pipeline 70, and the joint on the wall of the shell 7 between air control shutter door 8 and the air-flow detection piece 2 is guided to and tapped into to pipeline 70.
The fuel of being supplied with from fuel tank T by pump P leaves through exporting 74 through 73 fuel conditioning cavities 72 that enter fuel pressure regulation valve 71 that enter the mouth, and by the inlet 35 of pipeline 75 to modulating valve 71, and enter pressure chamber 36.Fuel in pressure chamber acts on the lower surface of diaphragm 31, and this diaphragm forms a variable area valve with the ring-shaped valve seats of processing on tubular prolongation 37 top edge of pressure chamber walls.Fuel by this variable area valve through enter the mouth 39 enter chamber 38 and through export 40 and pipe 41 turn back to fuel tank.An axle 43 that tightly is slidingly matched with shell 44 is bearing in the upper surface of diaphragm 31 and the lower surface of diaphragm 33.An axle 50 is bearing in the lower surface of diaphragm 31 and the upper surface of diaphragm 32.One has the spring 44 of uniform pressure to act on the lower surface of diaphragm 32 with spring 42.The upper surface of diaphragm 32 is exposed in the pressure in chamber 38 and hole 39.The lower surface per os 45 of diaphragm 33 and pipeline 46 are exposed in this a part of pressure of the engine air inlet tube between air-flow detection piece 2 and the throttle 8.The upper surface per os 47 of diaphragm 31 and pipeline 48 are exposed in the pressure of part between the air-flow detection piece 2 of engine air inlet tube and the air filter F.
In order to be easy to describe the following demarcation of fuel and air pressure:
P 1Be the pressure between air-flow detection piece 2 and the air filter F.
P 2Be the pressure between air-flow detection piece 2 and the throttle 8.
P 3It is fuel pressure at mouth 40 places that fuel turned back to fuel tank.
P 4It is the fuel pressure in fuel conditioning cavity 72 and pressure chamber 36.
The plectane of air-flow detection piece forms a looping pit with the gradually little circular cross section of shell 7 diameters that holds it, its size changes according to the airflow rate of motor, and in order to keep the predetermined ratio of air-flow to fuel stream, be necessary to provide a device, by means of this device, the pressure drop in looping pit can cause effectively through the proportional pressure drop in the fuel adjusting hole 27.Owing to entering in each nozzle, fuel enters pressure P 2(P 2Be by the road 70 and hole 68 be applied to air cavity in the housing 63), so the fuel adjusting pressure drop just equals P 4-P 2
Like this, P 4-P 2Just must equal P 1-P 2Constant multiple.
Be this purpose, the invention provides a special relationship between the useful area of the useful area of a diaphragm 31,32 and 33 and tubular prolongation 37.
For this purpose, all the useful area than diaphragm 31 is little for diaphragm 32 and 33 area, and little quantity equals diaphragm 31 and is exposed to area under tubular prolongation 37 internal pressures.
In order to explain the effect of fuel pressure regulation valve, area is by following qualification:
A is the interior area of ring-shaped valve seats that tubular prolongation 37 limits.
C * A is the area of diaphragm 31.
(C-1) * A is the area of each diaphragm 32 and 33.
Represent with F by the power that each spring 42,44 applies.
The downward power that acts on the diaphragm is:
On the diaphragm 31 F+C * A * P 1
On the diaphragm 32 (C-1) * A * P 3
Power upwards is the A * P on the diaphragm 31 3+ (C-1) * A * P 4Add (C-1) * A * P on the diaphragm 33 2Add the F on the diaphragm 32.
Because the variable area valve that is made of tubular prolongation 37 and diaphragm 31 will open or close, it meets following condition with the equilibrium of forces on the maintenance diaphragm:
P 4×A＝P 1×C×A-P 2×（C-1）×A
Like this:
P 4-P 2＝C×（P 1-P 2）
Like this, just as required, though any or all variation of force value, P 4-P 2All with P 1-P 2Be directly proportional.
Resistance flowing pressure P in the return line 40 3Only react on the center area of diaphragm 31, but act on the whole area of diaphragm 32.This has just overcome the power that makes progress of some springs 44, just the power of being transmitted on axle 50, the pressure rising in the build-up of pressure chamber 36 like this.Therefore along with back pressure P 3Raise, the pressure in pressure chamber 36 also raises and compensates.
Air-flow detection piece 2 under its spring action P that will keep-up pressure as possible 2Constant.By the rotation of measuring staff 5, cam 9 motion thereupon, the end of rod member 13 makes fuel adjusting part 19 corresponding sports by means of the deflection of roller 11 with by means of push rod 17, and each position of air-flow detection piece 2 can both provide the fuel adjusting hole of a corresponding size.Like this, can both provide a correct air-flow and the ratio of fuel stream if the shape of cam 9 is processed to position for all air-flow detection pieces, even frictional force makes detection piece be in the out of position concerning airflow rate, it is correct that this ratio will remain.
To system as described herein, can guarantee that motor works in its gamut, but the certain ratio in some cases that provides an air-flow and fuel to flow is provided, these situations comprise starting, cold operation and at full capacity or contiguously working at full capacity, or when being pressurized.
For the air/fuel mixture of enriching is provided during low temperature movement and engine start, the upside of diaphragm 33 and the downside of diaphragm 32 are worked.
Passage 81 is connected in the chamber 82 of diaphragm 33 tops through closure 82A, is connected to by closure 83A in the chamber 83 of diaphragm 31 tops, and is connected to mouth 47.Closure 86 is connected to passage 81 with the chamber 87 of diaphragm 32 belows and mouthfuls 89.
The cold start-up valve has one with cover 91 pedestal 90.Pedestal has been installed a bimetallic strip 92 for 90 li, increases with temperature, and this bimetallic strip is bent downwardly.Pedestal 90 is installed on the motor, and the temperature of motor will raise with the material-to-be-heated temperature rise as engine cooling water of motor.The song of tinsel 92 puts in taper pin 93 in the hole 94 by one of end bearing, thereby forms a variable orifice.Hold the mouth 97 between the space per os 95 of metal bar 92 and shell 7 that pipeline 96 is connected to engine air inlet tube and the throttle.Variable orifice 93,94 per os 98, mouth 89 and pipeline 85 are connected to chamber 87.
At work, when motor was enough warm, tinsel 92 club feet were with near hole 93,94.Then,, same pressure force it downward and be applied to and force it upwards on the diaphragm 32 on the diaphragm 33, and because the useful area of two diaphragms is identical, so to make a concerted effort on diaphragm be zero owing to being applied to.If motor is cold, because open according to engine temperature to a certain extent in hole 93,94,, cause power downward on the diaphragm to increase so the pressure in the chamber 87 reduces, this just makes the fuel pressure in the pressure chamber 36 raise, thereby makes the ratio of air-flow and fuel stream reduce.
The prolongation of chamber 82 forms a hole 100, therein by means of presetting adjusting screw 105 and a locking nut 106 can be adjusted spring seat 101.A spring 102 is inserted between seat 101 and the diaphragm 33.Chamber 82 per os 103 and pipeline 104 are connected to the downstream that can artificially handle throttle 8 in the engine air inlet tube.Work under the situation of motor in partial load, when throttle was almost closed, the pressure of 104 join domains of pipeline was low in suction tude 1.If throttle throws open, the pressure of 104 join domains of pipeline and the pressure in the chamber 82 sharply rise in suction tude, diaphragm 33 applies a power that increases downwards, like this, by axle 43, diaphragm 31 is forced downwards by additional force, fuel pressure in the build-up of pressure chamber 36 raises, and temporarily increase fuel stream, and up to because of by the closure throttling, result and make pressure reduction disappearance between chamber 82 and 83.
Or by motor air pump or motor by the supercharging of gas-discharging type air pump in (being commonly referred to turbosupercharger), system by a hole, can realize that the pressure in the suction tude no matter when is higher than barometric pressure, the suction press of predetermined ratio is applied to the upper end of piston 101, to increase fuel pressure.
Change in the structure to suction tude shown in Figure 5 at Fig. 2, throttle valve 208 is installed in the upstream of air-flow detection piece 202, detection piece 202 is installed in one on the rod member 203 slidably on the hollow strips 204, and described rod member 203 is by horizontal pin 207,208 supportings that are fixed on the suction tude 201.Tooth 209 on the tooth bar 204 and gear 206 engagements that are fixed on the axle 205, axle 205 is installed in rotation on the suction tude 201.This structure is that what to be arranged like this is that the whole stroke of air-flow detection piece 202 and its tooth bar 204 rotates about 320 ° corresponding to axle 205.
Near air-flow detection piece 202, the inwall of suction tude 201 is flarings, so along with detection piece 202 horizontal pin 208 motions towards downstream, increased the detection piece periphery and managed annulus area between 201 inwalls.As shown in Figure 2, the cone angle of the 201a of first portion is less than the cone angle of remaining part 210b, thereby increased the angular movement of axle 201, so that air-flow lacks than the air-flow of higher rate.
As shown in Figure 3, axle 205 is connected on the major axis 212, on major axis 212, by a pin 213, is fixed with a fuel control cam 214.
In order to prevent that tooth bar 204 distaff parts 203 from reversing, on two opposite ends of gear 206, be fixed with two back-up ring 206a and 206b, fit in the flat side of they and tooth bar 204.
With reference to Fig. 3, Fig. 4, cam 214 and cam be driven to be rolled 215 and cooperates, driven rolling on 215 bearing pins 216 that are installed in rotation on by arm 217 supportings, arm 217 pin again is connected on the rotating component 218 of fuel control valve, fuel control valve has a fixed block 219 between the two-part that are fixed on shell 210, and shell 210 is fixed on the suction tude 201.
Axle 205 is along being that dextrad among Fig. 2 is born an inclined to one side moment of torsion to the direction of suction tude 201 upstream mobile racks 204 and air-flow detection piece 202.This can be by means of realizing as a certain spring of performance.
Spring 221 acts between shell 220 and the arm 217, contacts to keep driven the rolling with cam 214 of cam.
As shown in Figure 5, the inner rotation part 218 of fuel control valve is a hollow, and a D shape groove 222 that aligns with the fixing triangular groove 223 of valve member 219 arranged on variable pitch, thereby define a triangle fuel adjusting hole, its area of section square changes with angle, and inner valve member 218 is rotated from the position that this hole is fully closed in this angular range.
With reference to Fig. 3, the fuel pressure of being carried by pump P from fuel tank T is by 230 controls of first pressure regulator valve, the annular space 231 that this valve 230 has a fuel to be transported to, a side in this space is fastening diaphragm 232.Spring 233 pressing diaphragm on the annular seating around the outlet 234 of drawing oil sump tank.Spring 233 is positioned at shell 235, and its inside is maintained at this pressure by the pipeline 236 that is connected to suction tude 201 outlet, promptly at the suction tude outlet end or be connected to pressure in the booster cavity (not shown) of suction tude 201 outlet end.
Fuel from pressure regulator valve 230 is transported to the inside of rotating valve member 218 through the channel system 237 in inlet duct 201 and shell 220.
Fuel leaves modulating valve 218 through another channel system 238 of second fuel pressure regulation valve 240 that leads, 219, second fuel pressure regulation valve keeps a constant reference pressure in passage 238, it comprises 241, one diaphragms 242 of an annular chamber and a loading spring 243.The fuel that leaves valve 240 through the annular seating of processing on outlet member 245 is transported to the sort of fuel nozzle shown in Figure 1.
When motor is in cold conditions, particularly when cold start-up, in order to increase supply of fuel, suction is under the control of the sort of double-level-metal spare control valve shown in Figure 1, can on bigger or less degree, put on the downside of diaphragm 242 on demand, when reaching normal working temperature, just close suction.
In order to prevent the vaporization in the pipeline of guiding fuel delivery nozzles, can near each nozzle, provide an independently pressure controlled valve 240 for each nozzle.For the fuel that can make any air of carrying secretly and be transported to valve 230 can return fuel tank, can process a little discharge orifice that returns the outlet 234 of fuel tank from annular chamber 231 guiding.
The effect of the rack and pinion 204,206 between air-flow detection piece 202 and cam 214 is: compare the rotation that increases cam 214 greatly with the rod member 4 among Fig. 1.Correspondingly, for given cam 214 lip-deep precision, rotate valve member 218 and be easier to obtain very accurate position, thereby can finish the accurate coordination of the size and the relation between the air-flow of fuel valve mesopore.
Need not come yawing axis 205 by a spring, can use improvement structure shown in Figure 6.In this structure, axle 205 another cams 301 that cooperate with push rod 302 of supporting, push rod 302 slides in guiding element 303 and props up and withstands on an end of the rod member 304 that pivot 305 rotates.The other end of rod member 304 props up on the plunger 306 that slides with the suitable seal form in the ball 307 that withstands in the shell 235.Plunger 306 withstands on the upper end of spring 233.
Adopt this structure, the angular orientation of axle 205 has determined the pressure of spring 233, thereby has influenced fuel pressure.The latter applies a restoring force with spring 233 back on axle 205, arrive its upstream position with skew air-flow detection piece.

Claims (11)

1, a kind of fuel delivery system of internal-combustion engine, comprise a suction tude that has the common choke valve of artificial manipulation, with an air-flow detection piece that in suction tude, moves with respect to common choke valve, the variation of air-flow makes detection piece resistance restoring force and moves, flow through the air-flow useful area of detection piece with change, also comprise a fuel flow control valve that has movable valve member, the position of air-flow detection piece is depended in the position of movable valve member, thereby is characterised in that the proportional device of air-pressure drop on fuel pressure drop and the air-flow detection piece on the control fuel flow control valve.
2, system according to claim 1, wherein the fuel flow control valve is connected to the fuel nozzle that at least one has the fuel outlet that is positioned at a space, and this space is connected between the common choke valve and air-flow detection piece on the suction tude.
3, system according to claim 2 comprises a fuel pressure regulation valve with movable fuel pressure control piece, with control excess fuel is transmitted back to the variable return opening of fuel tank,
Comprise that the fuel pressure with fuel flow control valve upstream is applied to the device of first presumptive area, force the fuel pressure control piece to increase the size of variable return opening thereby form first power.
Comprise that the air pressure with air-flow detection piece upstream is applied to the device of second presumptive area, thereby form second power, force the fuel pressure control piece upstream air pressure on the occasion of condition under reduce the size of variable return opening.
Comprise and air pressure between air-flow detection piece and the choke valve is applied to fuel outlet (or several fuel outlet) and also is applied to the size of the device of the 3rd presumptive area with the increase return opening.
4, system according to claim 3, wherein first and second zones are positioned on the opposite side of the diaphragm that is connected in the fuel pressure control piece, the 3rd zone is positioned on the secondary diaphragm, and secondary diaphragm is connected in the fuel pressure control piece and is arranged in the chamber that separates with primary diaphragm.
5, system according to claim 4, wherein secondary diaphragm with respect to the 4th area part on the side in the 3rd zone the space that surrounds be connected to the suction tude in choke valve downstream, and also be connected to another space that partly surrounds by the 5th diaphragm zone through a throttling passage, the 5th diaphragm zone acts on the fuel pressure control piece, and towards with the opposite direction in the 4th zone.
6, system according to claim 5, wherein the fuel flow control valve has a Sliding Control part, and its motion has changed the length of exposure of one or more triangle discharge orifices.
7, system according to claim 6, wherein control piece is connected to the air-flow detection piece by a cam and cam follower.
8, a kind of fuel delivery system of internal-combustion engine, comprise a suction tude that has the common choke valve of artificial manipulation, with an air-flow detection piece that in suction tude, moves with respect to common choke valve, the variation of air-flow makes the motion of detection piece resistance restoring force, thereby change the useful area that flows through the detection piece air-flow, also comprise a fuel flow control valve that has movable valve member, the position of air-flow detection piece is depended in the position of movable valve member, it is characterized in that control piece is connected in the air-flow detection piece by a cam and cam follower.
9, system according to claim 8, wherein mechanism comprises tooth bar and and a tooth bar meshed gears that is connected in detection piece, this gear is connected on the cam of mechanism.
10, according to Claim 8 or 9 described systems, the wherein moment of torsion skew that produced by the fuel pressure that is fed in the hole along the direction of resistance air-flow of air-flow detection piece, the angular orientation of mechanism's cam have determined the load adjustment on the pressure regulator valve to be fed to fuel pressure in the hole with adjusting.
11, require described system according to any aforesaid right, wherein the fuel flow control valve has a fuel discharge orifice, and its big I square changes with the control piece displacement.
CN 88102429 1987-04-24 1988-04-23 The fuel delivery system of internal-combustion engine Pending CN1030461A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8709773 1987-04-24
GB878709773A GB8709773D0 (en) 1987-04-24 1987-04-24 Fuel delivery systems

Publications (1)

Publication Number Publication Date
CN1030461A true CN1030461A (en) 1989-01-18

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ID=10616313

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88102429 Pending CN1030461A (en) 1987-04-24 1988-04-23 The fuel delivery system of internal-combustion engine

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CN (1) CN1030461A (en)
AU (1) AU1628388A (en)
GB (1) GB8709773D0 (en)
WO (1) WO1988008487A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655356A (en) * 1949-12-02 1953-10-13 Herman F Borcherts Carburetor for internalcombustion engines
DE2054911A1 (en) * 1970-11-07 1972-05-10 Robert Bosch Gmbh, 7000 Stuttgart Control element for a fuel injection system
US3949714A (en) * 1974-04-22 1976-04-13 General Motors Corporation Fuel-air metering and induction system
GB1546074A (en) * 1975-05-15 1979-05-16 Tecalemit Ltd Fuel injection systems for internal combustion engine
JPS57108461A (en) * 1980-12-24 1982-07-06 Ntn Toyo Bearing Co Ltd Fuel injection device

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WO1988008487A1 (en) 1988-11-03
AU1628388A (en) 1988-12-02
GB8709773D0 (en) 1987-05-28

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