CN101087943B - Mechanical air fuel ratio regulating carburettor with fuel pressure regulation - Google Patents
Mechanical air fuel ratio regulating carburettor with fuel pressure regulation Download PDFInfo
- Publication number
- CN101087943B CN101087943B CN2005800442631A CN200580044263A CN101087943B CN 101087943 B CN101087943 B CN 101087943B CN 2005800442631 A CN2005800442631 A CN 2005800442631A CN 200580044263 A CN200580044263 A CN 200580044263A CN 101087943 B CN101087943 B CN 101087943B
- Authority
- CN
- China
- Prior art keywords
- fuel
- vaporizer
- axle
- air
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
- F02M7/22—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves fuel flow cross-sectional area being controlled dependent on air-throttle-valve position
-
- 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
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/10—Carburettors having one or more fuel passages opening in valve-member of air throttle
- F02M17/12—Carburettors having one or more fuel passages opening in valve-member of air throttle the valve member being of butterfly type
-
- 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
- F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
-
- 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
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
- F02M7/14—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
-
- 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
- F02M9/00—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position
- F02M9/08—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves rotatably mounted in the passage
- F02M9/085—Fuel spray nozzles in the throttling valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The present invention describes a carburetor (8) which comprises an air inlet (2) including a mechanically adjustable air valve (3), a mechanically adjustable sprayer that connects the air inlets, and a mechanically measuring device that is connected to the air valve and the sprayer and sustains the stoichiometric ratio between the amount of the air and the fuel. Besides, the vaporizer comprises a fuel pressure adjusting device (13) which affects the fuel pressure according to one or more than one power engine load parameter, and under the fuel pressure the vacuum suction feeding pipe (12) communicating the air inlets (2) obtains the vacuum signal in the air inlet. The fuel pressure is adjusted according to the measured vacuum signal and the discharging of unburnt fuel is reduced under certain dynamic conditions of the internal combustion engine.
Description
Technical field
The present invention relates to a kind of vaporizer, the measuring apparatus that it comprises air intlet with mechanical adjustable air valve, be communicated with sprayer in the air intlet, make in the electronics mode with the common part that air valve is connected with sprayer.
The invention still further relates to the engine fuel that is equipped with this kind vaporizer on a kind of vehicle that is equipped with internal-combustion engine, and relate to and a kind of fuel is injected into method in the air intlet.
Background technique
Vaporizer and engine fuel are general known.Have very multiple can be applicable and mostly based on two or the vaporizer of the internal-combustion engine of four-stroke principle also be very known.As for application, can roughly consider the traction or the commercial Application of limit of power from small to large.Thereby, vaporizer according to application and fixed design is compromise between price and the performance all the time, for example: compromise between ease of manageability, maintenance, number of parts, the vulnerability etc.Every kind of application need is made the vaporizer of making to measure, so these vaporizers of once making have no interchangeability.The pairing demand and the application of the motor that is assembled together according to vaporizer with it are decided, and it is very general coming the combustion process of fuel metering and air by the parameter of constant increase number, thereby optimize process that each is used separately.
This make known vaporizer and therefore attached most process operation device become increasingly complex, reduce its interchangeability, increase the dependence that necessity of a large amount of parts is safeguarded, cause rise in price, and reduce overall reliability.
Summary of the invention
The purpose of this invention is to provide a kind of vaporizer that more easily, is easy to make, it has the more possibility of widespread usage, the more not fragile and proper content between still can the fuel metering air under all working condition.
For this reason, vaporizer according to the present invention comprises the air intlet with mechanical adjustable air valve, the mechanical can regulate sprayer that is communicated with air intlet, and the mechanical measuring apparatus of keeping the stoichiometric proportion between air and the fuel that is connected with described air valve and described sprayer.
The present invention is based on following viewpoint: should not involve into more part and procedure parameter in the adjustment process, but should increase the combustion efficiency of fuel, need to improve volumetric efficiency, make and under all working condition, use the motor of vaporizer can obtain enough air fully.According to the present invention, realize this purpose between mechanical adjustable air valve by mechanical measuring apparatus directly being placed on fuel and the sprayer.Described measuring apparatus is in case set, and just keeps the fixedly stoichiometric proportion between the amount of air and fuel.In this way, or via the method, comparable traditional vaporizer more effectively uses available engine combustion ability, and further, its beneficial effect also is to increase the effective pressure of vehicle braked device and increases moment of torsion by this.
Therefore, the vaporizer according to the present invention that component part reduces is simplified, and has become more reliable, and according to the present invention, owing to reduced the number of mobile part, so need be less to the maintenance that vaporizer carries out.
In one embodiment, measuring apparatus (it ad hoc is the measuring apparatus of mechanized equipment) is installed in the air intlet, by doing like this, also becomes compact more according to vaporizer of the present invention.
According to the difference form of this notion, as defined in the dependent claims, described air valve is around axle rotation, and axle is divided into many parts and for hollow, therefore realizes the very simply design according to vaporizer of the present invention.
Another preferred embodiment is characterised in that sprayer enters in the air intlet in the bottom of air valve.This advantage that has is that fuel is directed into the position that complete uniform atomizing takes place in the air intlet.
Another embodiment according to vaporizer of the present invention is characterised in that air valve offers groove on the surface of air valve from the bottom to the surface.Fuel is atomizing equably from groove, has therefore realized that also fuel mixes with the best of air.
In addition, the present invention relates to a kind of internal-combustion engine and relate to a kind of launch vehicle that is equipped with above-mentioned vaporizer.This motor can adopt the fuel of all known types, for example gasoline, coal gas, diesel oil and any hydrocarbon.
And, more particularly, the present invention relates to a kind of fuel method for implanting, it is characterized in that, regulate the fuel pressure that is injected into the fuel in the air intlet, and measure the variation in pressure in the air intlet, and with described variation in pressure measuring as fuel metering pressure, specifically, in the difference form of this situation, the variation in pressure that the eye point (exit point) of fuel is located in the measurement air intlet.
The method according to this invention, under some dynamic condition of the internal-combustion engine in the launch vehicle (for example, wherein discharging a large amount of unburned fuels), fuel metering pressure more particularly reduces described fuel pressure, thereby reduces the possibility of noxious emission.
Description of drawings
Now, that is to say, will be by further explaining vaporizer of the present invention, internal-combustion engine and fuel method for implanting with figure below, like parts is represented with a reference number of drawing circle among the described figure.
Fig. 1 is the description/drawing according to vaporizer of the present invention.
Fig. 2,3 and 4 is the drawing from right side, rear portion and the top of the vaporizer of Fig. 1.
Fig. 5 is equipped with fuel line and vacuum intake conduit and is suitable for being applied to details according to the multipartite axle in the vaporizer of Fig. 1-4.
Embodiment
Fig. 1,2,3 and 4 discloses valve piece 1, air intlet 2, air intlet 2 is mid-air valve 3, air valve 3 can be around multipartite axle 4 rotations, multipartite axle 4 is parts of mechanical measuring apparatus, and also disclose fuel valve 5, fuel valve 5 places on the segmentation face that serves as measuring apparatus on the multipartite axle 4, and lever 6 is connected on the top of axle 4, and groove 7 can be engraved on the surface of air valve 3.Part 1-7 is the major part that schematically presents vaporizer 8, and the vaporizer 8 that the invention process/design up to the present presents is entirely mechanical.Mechanical means by " still waiting to explain " or " still waiting to define ", described measuring apparatus 4, in all pressure situation with in using (each pressure situation and use in lever 6 set the position of fuel valves 5), keep the stoichiometric proportion between the amount of air and fuel.It is approximate mobile without barrier that described vaporizer 8 guarantees that air passes air intlet 2, therefore, obtains best volumetric efficiency all the time, like this, under all dynamic conditions, need not other necessary annex and just can obtain efficient preferably.
Measuring apparatus distributes and concentrates on around the multipartite axle 4 of air intlet 2 installings, and described air valve 3 is fixed on the rotatable mandrel segment in top shown in Figure 1.The fixing mandrel segment in the bottom of movable upper mandrel segment and Fig. 1 is combined together, and forms fuel valve 5 in fuel line 9, and described fuel line 9 parts are passed the hollow space of axle 4.Therefore, the fuel quantity that is allowed to enter in the air intlet 2 by fuel valve 5 is relevant with the air quantity of passing through valve 3 on stoichiometry according to the position, angle of axle 4 (speaking by the book air valve 3).Therefore, the fuel line 9 with required diameter will mainly be eccentric in each mandrel segment of multipartite axle 4.
Tracheal portion in the upper mandrel part that is arranged on multipartite axle 4 of fuel line 9 enters the air intlet 2 from the bottom 10 of air valve 3.Air valve 3 10 begins to offer groove 11 to air valve 3 surfaces from the bottom on the surface of air valve 3, passes the homogeneous mixture that fuel and air appear in groove 11, and described mixture atomizes equably, and can be directed to motor via air intlet 2.
Described method can be combined with the method for the pressure that changes the fuel that arrives fuel valve 5 according to one or more thermomechanics engine pressure parameters.Can carry out fine tuning by vacuum, waterpower, strength or suitable mechanics subsequently to parameter (for example, fuel pressure and/or volume of fuel).
The advantage of practice is, do not have the fuel liquid-storage container in the vaporizer 8 of the present invention and therefore do not have float needle, this another good effect that has to be, can place and use vaporizer 8 any desired location (erect, put upside down or at its sidepiece).Therefore, weakened the problem relevant with described structure.For example: the problem of fuel shortage when big gravity (for example, the gravity that takes place with the various power competition of various variations) occurring.But the possibility that also has the too much fuel that causes because of big gravity.And, no longer have float needle or the problem of the on-the-spot fuel vaporization (mist) that causes by high temperature in the combustion space and engine shutdown.
Optionally, mainly decide, some vaporizers 8 are connected in parallel with each other, thereby provide one or more combustion spaces according to required fuel-air combined amount on the loading process and the application of in question motor.
Fig. 5 discloses a kind of flexible mode of execution of multi-functional axle 4, and it is equipped with two conduits, and they are respectively fuel line 9 and vacuum intake conduit 12.In decision design, the fuel pressure regulator 13 among above-mentioned Fig. 5 is used for to regulate the fuel pressure of the fuel that injects in the air intlet 2.More particularly, fuel pressure is subjected to the influence of the pressure P in the air intlet 2, and more particularly, the pressure by measuring in the described air intlet 2 via vacuum intake conduit 12 influences fuel pressure.Vacuum intake conduit 12 is communicated with air intlet 2, preferably is communicated with near the eye point of the fuel of position in entering air stream.By this method, can make fuel pressure be suitable for the dynamic condition of internal-combustion engine by fuel pressure regulator 13.For instance, discharge a large amount of gases if having the driver that is in top gear G in the automobile of low engine speed n, a large amount of unburned hydrocarbon from fuel will enter in the environment via venting gas appliance so.This situation will continue always, produce enough speed so that be present in that fuel in the Venturi tube atomizes fully and then till the combustion fuel air mixture up to motor.By limiting.In the case, by low engine speed n, in particular under top gear G,, stop undesirable tail gas to discharge by fuel limitation pressure.
Generally, under all dynamic conditions, the fuel pressure regulator 13 for as extra trimming apparatus has under the situation of suitable metrical information, and fuel pressure regulation can be used for realizing the perfect combustion of " perfection " as far as possible.
In addition, vaporizer 8 can be installed fuel damping/delay valve 14 in the vacuum intake conduit.Fuel damping/delay valve 14 is guaranteed variation in pressure less in the Venturi tube, suction conduit 12 in air intlet is measured described variation in pressure, make described variation in pressure mild, in other words, arithmetically it is carried out integration, do so also and in fuel pressure regulation/metering process, introduced required retard time.
In Fig. 5, fuel valve control comes fuel from fuel line 9, such as before explaination.So also can the pressure in the suction conduit 12 be measured like this if wish at supply of fuel via fuel valve 5.For this reason, can be shape oval or that adopt other to be fit to by the diameter that makes conduit 12, described shape that other is fit to be embodied in axle 4 up and down between the mandrel segment (for clearer, be shown as on the accompanying drawing each other at a distance of a distance herein), i.e. the position of introducing diameters of segmentation face 15 between fuel valve 5 and the mandrel segment that rotates.
Optionally, fuel pressure regulation also can be independent of the specific carburettor design with multipartite axle 4 and/or conduit 9 and 12 and use alone.And, can finish the fuel pressure regulation of certain gravity or locomotivity guiding, or can draw fuel via vacuum pressure.
For example, described vaporizer can to small part by making with plastic mo(u)lding or aluminium mold.
Claims (14)
1. vaporizer, it comprises air intlet with mechanical adjustable air valve, mechanical adjustable sprayer of discharge fuel and the measuring apparatus of the machinery that cooperates with described air valve and described sprayer in described air intlet; Described measuring apparatus comprises the axle that is divided into a plurality of parts, and described air valve rotational fixation is on a part of axle; Described multipartite axle has the mandrel segment that can rotate relative to one another; Described multipartite axle possesses the fuel line that is communicated with described sprayer; Utilize the described fuel line on the described multipartite axle, the amount that arrives the fuel of described sprayer can be controlled with respect to another mandrel segment rotation by making a described mandrel segment, makes the amount of the amount of described fuel and the air that permission is passed through proportional to keep the stoichiometric proportion between air and the fuel;
It is characterized in that described vaporizer also comprises fuel pressure regulator, described fuel pressure regulator is connected to fuel valve, in order to regulate the fuel pressure of the fuel that injects in the air intlet; Described fuel pressure regulator is also connected to the vacumn induction conduit that discharges in described air intlet.
2. vaporizer according to claim 1 is characterized in that described measuring apparatus is the measuring apparatus of complete mechanical equipment.
3. vaporizer according to claim 1 and 2 is characterized in that described fuel line is arranged to off-centre in each mandrel segment of described multipartite axle.
4. vaporizer according to claim 1 and 2 is characterized in that one of described multipartite mandrel segment is fixedly mounted in the described vaporizer.
5. vaporizer according to claim 1 and 2 is characterized in that described sprayer discharges in described air intlet at the place, bottom of described air valve.
6. vaporizer according to claim 5 is characterized in that described air valve has the groove that extends from described bottom on the surface of described air valve.
7. vaporizer according to claim 1 and 2, it is characterized in that described fuel pressure regulator influences described fuel pressure according to one or more combustion parameters or engine load/pressure parameter, one of described parameter is the vacuum pressure in the described air intlet.
8. vaporizer according to claim 1 and 2 is characterized in that described measuring apparatus comprises multipartite axle, and described multipartite axle possesses the vacumn induction/suction conduit of the described air intlet of guiding.
9. vaporizer according to claim 8 is characterized in that described vaporizer possesses the flow damping/delay valve that is connected to the vacuum intake conduit.
10. vaporizer according to claim 1 and 2, it is characterized in that described measuring apparatus comprises multipartite axle, described air valve can be around a mandrel segment rotation, and described multipartite axle is provided with the fuel line that is communicated with described sprayer and/or possesses the vacumn induction conduit that is communicated with described air intlet, and has rotatable mandrel segment between mandrel segment.
11. an internal-combustion engine, it possesses according to the described vaporizer of each claim among the claim 1-10.
12. a launch vehicle, it possesses internal-combustion engine according to claim 11.
13. a method that is used for controlled amounts fuel is injected into the air intlet of vaporizer, the fuel pressure that it is characterized in that described injection fuel is adjustable; Fuel pressure that regulate to inject fuel to be stopping undesired emission, and measures the pressure in the described air intlet, and regulates described fuel pressure according to the pressure of the air intlet of described measurement.
14. method according to claim 13, the pressure that it is characterized in that measuring in the described air intlet is meant the pressure of measuring on the eye point that enters the fuel in the described air intlet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1027853 | 2004-12-22 | ||
| NL1027853A NL1027853C1 (en) | 2004-12-22 | 2004-12-22 | Carburettor for vehicle internal combustion engine, includes mechanical metering device coupled with air valve and atomizer and which maintains the stoichiometric ratio between amounts of air and fuel |
| PCT/NL2005/000598 WO2006025727A1 (en) | 2004-08-31 | 2005-08-18 | Mechanical air fuel ratio regulating carburettor with fuel pressure regulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101087943A CN101087943A (en) | 2007-12-12 |
| CN101087943B true CN101087943B (en) | 2011-06-22 |
Family
ID=36928461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800442631A Expired - Fee Related CN101087943B (en) | 2004-12-22 | 2005-08-18 | Mechanical air fuel ratio regulating carburettor with fuel pressure regulation |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1831531A1 (en) |
| JP (1) | JP4885145B2 (en) |
| KR (1) | KR20070098997A (en) |
| CN (1) | CN101087943B (en) |
| AU (1) | AU2005280749B2 (en) |
| BR (1) | BRPI0519224A2 (en) |
| NL (1) | NL1027853C1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB115823A (en) * | 1913-04-19 | |||
| DE424977C (en) * | 1923-10-16 | 1926-02-09 | Jacob Christian Hansen Elleham | Injection carburettor in which the air and fuel flow cross-sections are regulated in accordance with the law |
| GB258338A (en) * | 1925-06-17 | 1926-09-17 | Ken Crip Corp | Improvements in spray carburetors for internal-combustion engines |
| GB2131876A (en) * | 1982-12-17 | 1984-06-27 | Bothwell P W | Carburettor throttle valves |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191505694A (en) * | 1914-04-28 | Aeroplanes Morane Saulnier Sa | Improvements in or relating to Carburetters. | |
| US3920778A (en) * | 1974-06-26 | 1975-11-18 | Rugeris John De | Carburetor apparatus having an improved fuel metering arrangement |
| JPS54147326A (en) * | 1978-05-12 | 1979-11-17 | Hitachi Ltd | Fuel injection valve controller for compression ignition type internal combustion engine |
-
2004
- 2004-12-22 NL NL1027853A patent/NL1027853C1/en not_active IP Right Cessation
-
2005
- 2005-08-18 KR KR1020077016742A patent/KR20070098997A/en active IP Right Grant
- 2005-08-18 JP JP2007548108A patent/JP4885145B2/en not_active Expired - Fee Related
- 2005-08-18 BR BRPI0519224-2A patent/BRPI0519224A2/en not_active IP Right Cessation
- 2005-08-18 CN CN2005800442631A patent/CN101087943B/en not_active Expired - Fee Related
- 2005-08-18 AU AU2005280749A patent/AU2005280749B2/en not_active Ceased
- 2005-08-18 EP EP05774758A patent/EP1831531A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB115823A (en) * | 1913-04-19 | |||
| DE424977C (en) * | 1923-10-16 | 1926-02-09 | Jacob Christian Hansen Elleham | Injection carburettor in which the air and fuel flow cross-sections are regulated in accordance with the law |
| GB258338A (en) * | 1925-06-17 | 1926-09-17 | Ken Crip Corp | Improvements in spray carburetors for internal-combustion engines |
| GB2131876A (en) * | 1982-12-17 | 1984-06-27 | Bothwell P W | Carburettor throttle valves |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2005280749B2 (en) | 2011-09-22 |
| JP4885145B2 (en) | 2012-02-29 |
| EP1831531A1 (en) | 2007-09-12 |
| JP2008525705A (en) | 2008-07-17 |
| CN101087943A (en) | 2007-12-12 |
| KR20070098997A (en) | 2007-10-08 |
| NL1027853C1 (en) | 2006-06-23 |
| AU2005280749A1 (en) | 2006-03-09 |
| BRPI0519224A2 (en) | 2009-01-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20130818 |