CN201047317Y

CN201047317Y - Carburettor

Info

Publication number: CN201047317Y
Application number: CNU2007201432065U
Authority: CN
Inventors: 王明卿
Original assignee: BOYI ENTERPRISE Co Ltd
Current assignee: BOYI ENTERPRISE Co Ltd
Priority date: 2007-04-06
Filing date: 2007-04-06
Publication date: 2008-04-16
Anticipated expiration: 2017-04-06

Abstract

A carburetor comprises a base seat, a venturi cone assembly, a cam assembly, a horsepower regulating assembly and a vacuum horsepower regulating valve. The venturi cone assembly is arranged in the base seat, and the jacking block of the cone and the cam of the cam assembly support each other, and the oil line rotating wheel of the horsepower regulating assembly pulled by the oil line drives the loose leaf and limits the displacement of the venturi cone assembly caused by the vacuum attraction of the engine with the help of the cam of the cam assembly, and the vacuum horsepower regulating valve automatically provides enough oil gas for the engine. The carburetor of the utility model has the advantages of complete combustion of oil gas, improving the efficiency of the carburetor and reducing environmental pollution.

Description

Carburetor

Technical field

The utility model refers to a kind of Carburetor that is used for locomotive especially relevant for a kind of Carburetor, and it is provided with cam set and vacuum horsepower modulating valve, the purpose that makes Carburetor have better usefulness and reach fuel-efficient, reduce pollution.

Background technique

The quality of Carburetor design, the performance quality of locomotive concerns, when the Consumer bought locomotive, except selecting to drive the speed, fuel-efficient, environmental protection also was an important consideration, so general depot is before locomotive dispatches from the factory, mostly all can adjust the idling oil circuit, gas emissions such as HC, NOx, CO are all transferred to minimum, to reach the best oil drop of economizing, this action also can be satisfied locomotive when driving at moderate speed, and the discharge amount of above-mentioned gas is minimum and reach the most fuel-efficient state.

Announce in Announcement Number on July 11st, 2000: 398557 Taiwan patent has promptly disclosed a kind of " regulating fuel-efficient automatically and the low Carburetor that pollutes ", its automatic adjusting of before having filed an application for the creator is fuel-efficient and the low Carburetor that pollutes, be in the air suction way of Carburetor, to be equipped with a self-regulating choke device, this choke device is in the air suction way at the place, throttle valve the place ahead of tool fuel injection needle, this choke device has a positioning shaft, one air inlet ring seat, a pair of jump ring, an one choke cone and a spring, this choke cone makes the performance of Carburetor and the discharging of above-mentioned gas reach good improvement to the suction gas control of Carburetor.

But, above-mentioned automatic adjusting is fuel-efficient and the low Carburetor that pollutes, its working connection is to adopt the moving air throttle design of oiling tape, when locomotive when running at high speed, its fuel injection needle is for fear of the design of cone body on the structure, and can tape is moving get over shape and increase with refueling with the gap of emulsion tube, when being overflowed, the particle of fuel oil is difficult for atomizing, and cause incomplete combustion and pollute.In addition, when the choke cone is subjected to the engine pull of vacuum to attract start, can not effectively control its exact position, cause the inlet of air to be difficult for being affectedly bashful, the mixing of oil gas is unstable.

Therefore, this creator improves thoughts on above-mentioned disappearance, is that the spy concentrates on studies and cooperates the utilization of scientific principle, proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned disappearance finally.

The model utility content

Main purpose of the present utility model, be to provide a kind of Carburetor, adopt cam control Venturi tube cone group, and the design of change working connection, but make not only choke and can stop oil gas of cone, the auxiliary oil circuit of other mat one vacuum horsepower modulating valve conduct makes the oil gas mixing of Carburetor more stable, reduces pollution and has more superior performance.

In order to reach above-mentioned purpose, the utility model provides a kind of Carburetor, comprise: a pedestal, it has a central flow channel, these central flow channel two ends are respectively suction port and air outlet, this pedestal is equiped with a support in this suction port one side, forms the working connection outlet of a ring-type between this support and this pedestal; One Venturi tube cone group, it is arranged in this central flow channel, includes a stationary axle and a cone, and this stationary axle is fixedly arranged on this support, and this cone is movably set on this stationary axle; One cam set, it comprises a camshaft, a cam and a plate, and this camshaft is hubbed at nearly this pedestal centre, and it is inside and outside and be connected with this camshaft that this cam and this connecting plate are arranged at this pedestal respectively, and this cam is replaced mutually with this Venturi tube cone group; One horsepower of adjusting group, comprise a flap stationary axle, a flap and an oily line roulette wheel, this flap stationary axle is hubbed on the pedestal of the same side of nearly this air outlet and this cam set, and it is inside and outside and be connected with this flap stationary axle separately that this flap and this oil line roulette wheel are arranged at this pedestal respectively; An and vacuum horsepower modulating valve, it is arranged at this pedestal top, includes a vacuum valve cover and an auxiliary spindle, is provided with a diaphragm between this vacuum valve cover and this pedestal, this diaphragm was connected with assisting spindle, and this auxiliary spindle vertically runs through this pedestal and activity is stretched in this central flow channel.

The utlity model has following useful effect: the displacement amount that the cone of this Venturi tube cone group of cam may command of the present utility model is attracted by the engine pull of vacuum, reach spacing effect, it is more an amount of to make that air and fuel oil mix, and provide better oil gas stability, and the working connection outlet is arranged at cone the place ahead, openings of sizes is fixed, make fuel oil and Air mixing more even, burning can be more complete, in addition, vacuum horsepower modulating valve more can provide the fuel oil of Carburetor when friction speed to replenish, and makes horsepower obtain to promote, and improves Carburetor usefulness.

For enabling further to understand feature of the present utility model and technology contents, see also following relevant for detailed description of the present utility model and accompanying drawing, yet appended graphic only for reference with the explanation usefulness, be not to be used for the utility model is limited.

Description of drawings

Fig. 1 is a stereogram of the present utility model.

Fig. 2 is a side view of the present utility model.

Fig. 3 is the closed schematic representation of flap of the present utility model.

Fig. 4 is the half-open schematic representation of flap of the present utility model.

Fig. 5 is a flap standard-sized sheet schematic representation of the present utility model.

Fig. 6 is the front elevation of the utility model working connection emulsion tube and auxiliary oil circuit emulsion tube.

Fig. 7 is the sectional view of the utility model compensated with air valve.

Fig. 8 is the use schematic representation of the utility model compensated with air valve.

The primary clustering symbol description

Pedestal 10

Central flow channel 11

Venturi tube venturi 111

Suction port 12

Air outlet 13 supports 14

Working connection exports 15 oil grooves 16

Emulsion tube 17

Working connection emulsion tube 171 auxiliary oil circuit emulsion tubes 172

Passage 18

Vacuum duct 19

Venturi tube cone group 20

Stationary axle 21 cones 22

Reply part 23 jacking blocks 24

Cam set 30

Camshaft 31 cams 32

Connecting plate 33 cam orientation fine setting spiral shell 34

Horsepower adjusting group 40

Flap stationary axle 41 flaps 42

Oil line roulette wheel 43 positioning plates 44

Oiling line 45

Vacuum horsepower modulating valve 50

Vacuum valve cover 51 diaphragms 52

Auxiliary spindle 53 elastic components 54

Spindle fixed plate 55,55 '

Compensated with air valve 60

Front stall 61

Inlet hole 611

Back seat 62

Air outlet hole 621

Pneumatic diaphragm 63

Push rod 64

Retaining ring 641,641 '

Through hole 642

Resistance to compression assembly 65

Positioning ball 66 locating studs 67

Swivel nut 68 ducts 69, location

Embodiment

See also Fig. 1 to shown in Figure 3, the utility model provides a kind of Carburetor, comprises a pedestal 10, a Venturi tube cone group 20, a cam set 30, one horsepower of adjusting group 40 and vacuum horsepower modulating valve 50.

These pedestal 10 inside have a central flow channel 11 that runs through these pedestal 10 inside, and form a suction port 12 and an air outlet 13 respectively in these central flow channel 11 2 ends, this pedestal 10 is equiped with a support 14 in these suction port 11 1 sides, 10 of this support 14 and this pedestals form the working connection outlet 15 of a ring-type, be provided with an oil groove 16 in this pedestal 10, be provided with most the emulsion tubes 17 (please consulting shown in Figure 6 simultaneously) that are connected with this oil groove 16 and two in this pedestal 10 and export 15 passages that are connected 18 with this oil groove 16 and this working connection, those emulsion tubes 17 include two working connection emulsion tubes 171 and an auxiliary oil circuit emulsion tube 172, and the fuel oil of this oil groove 16 can be communicated to this working connection outlet 15 by these working connection emulsion tube 171 conductings and along passage 18.

This Venturi tube cone group 20 is positioned at this central flow channel 11, this Venturi tube cone group 20 includes a stationary axle 21, one cone 22, an at least one answer part 23 and a jacking block 24, this stationary axle 21 is fixedly arranged on this support 14, this cone 22 be movably set on this stationary axle 21 and with this pedestal 10, this support 14 and this working connection outlet 15 form a Venturi tube venturi 111, this answer part 23 is a spring, be arranged at this cone 22 inside, these answer part 23 two ends are replaced with this stationary axle 21 and this cone 22 inner edges respectively, these cone 22 1 ends can be contacted with this support 14, this jacking block 24 is arranged at this cone 22 the other ends, and should reply part 23 and be coated in this cone 22.

This cam set 30 comprises a camshaft 31, a cam 32 and a plate 33, this camshaft 31 is hubbed at nearly these pedestal 10 centre, it is inside and outside and be connected with this camshaft 31 and can be by these camshaft 31 driven rotary that this cam 32 and this connecting plate 33 are arranged at this pedestal 10 respectively, this cam 32 is replaced mutually with the jacking block 24 of this Venturi tube cone group 20, and the free end of this connecting plate 33 is equipped with a cam orientation fine adjustment screw 34.

This horsepower adjusting group 40 comprises a flap stationary axle 41, a flap 42, one oily line roulette wheel 43 and a positioning plate 44, this flap stationary axle 41 is hubbed on the pedestal 10 of nearly this air outlet 13 and these cam set 30 the same sides, it is inside and outside and be connected with this flap running shaft 41 that this flap 42 and this oil line roulette wheel 43 are arranged at this pedestal 10 respectively, this positioning plate 44 is arranged at outside this oil line roulette wheel 43 and is connected on this flap stationary axle 41, and this positioning plate 44 is replaced mutually with this cam orientation adjustment screw 34.

This vacuum horsepower modulating valve 50 is arranged at this pedestal 10 tops, this vacuum horsepower modulating valve 50 and this central flow channel 11 are communicated with a vacuum duct 19 in this pedestal 10, make air enter this vacuum horsepower modulating valve 50 in this vacuum duct 19 of mat, this vacuum horsepower modulating valve 50 includes a vacuum valve cover 51, one diaphragm 52, one auxiliary spindle 53, at least one elastic component 54 and two spindle fixed

plates

55 and 55 ', 10 of this vacuum valve cover 51 and this pedestals are provided with this diaphragm 52, this diaphragm 52 was connected with assisting spindle 53, this auxiliary spindle 53 vertically runs through this pedestal 10 and activity is stretched in this central flow channel 11, this diaphragm 52 is with this two spindles fixed plate 55 and 55 ' clamping, this elastic component 54 is a spring, two ends are resisted against spindle fixed plate 55 and this pedestal 10 of these diaphragm 52 bottom surfaces respectively, and the adjustment screw 56 that makes the end and of this auxiliary spindle 53 be arranged at these vacuum valve cover 51 tops is replaced mutually.

Pedestal 10 of the present utility model is mat one intake manifold be connected with an air-strainer and an engine (figure slightly) respectively in suction port 12 and 13 places, air outlet, as Fig. 2 and shown in Figure 4, when desire is quickened, can be docile and obedient clockwise by this oil line roulette wheel 43 that an oiling line 45 these oiling lines 45 of traction drive are twined rotates, and the flap stationary axle 41 of this oil line roulette wheel 43 is rotated, the flap 42 that drives these pedestal 10 inside is opened flap 42, at this moment, the pull of vacuum of engine can attract the cone 22 of this Venturi tube cone group 20 and make air enter this pedestal 10 from this suction port 12 through this Venturi tube venturi 111 to air outlet 13 directions, and the fuel oil of this oil groove 16 is because of being subjected to venturi principle effect (air produces negative pressure in this pedestal 10), and follow this passage 18 (please consulting shown in Figure 6 simultaneously) certainly this working connection outlet 13 overflow, and enter engine with the air mixing olefiant gas, in this while, because also being docile and obedient clockwise, the positioning plate 44 of this oil line roulette wheel 43 rotates, make the cam orientation fine adjustment screw of replacing mutually with this positioning plate 44 34 drive this connecting plate 33, cause this camshaft 31 to rotate according to counterclockwise, make the cam 32 of these pedestal 10 inside rotate and replace the jacking block 24 of this Venturi tube cone group 20 to suitable position, it is spacing that this cone 22 is stablized, and continues an amount of supply to keep fuel oil.And this moment, should strengthen because of this engine pull of vacuum by auxiliary spindle 53, and be attracted to this pedestal 10 inner auxiliary oil circuit emulsion tube 172 outlet ports that are connected with this oil groove 16 downwards, should assist 172 outlets of oil circuit emulsion tube to blockade, fuel oil is provided by this working connection outlet 15 as far as possible, and auxiliary oil circuit emulsion tube 172 outlet ports only provide the fuel oil of denier.

As shown in Figure 5, when rapidly or when climbing, these flap 42 standard-sized sheets cause the pull of vacuum of engine to reduce, air enters this vacuum horsepower modulating valve 50 from this vacuum duct 19, on push away that this diaphragm 52 and this two spindles fixed plate 55 of mat and 55 ' promote should auxiliary spindle 53, make this auxiliary spindle 53 this auxiliary oil circuit emulsion tube 172 outlet ports of recessing and no longer blockade, this moment, fuel oil can be from this oil groove 16 through entering this central flow channel 11 in auxiliary oil circuit emulsion tube 172 outlet ports, and enter engine with air mixing, make engine obtain more and an amount of oil gas and promote power, make locomotive speed faster.

The utility model Carburetor can further connect a compensated with air valve 60 (as shown in Figure 7), this compensated with air valve 60 comprises a front stall 61, one back seat 62, one pneumatic diaphragm 63, one push rod 64, an one resistance to compression assembly 65 and a location steel ball 66, this front stall 61 forms an inlet hole 611 and an air outlet hole 621 respectively with the two ends of this back seat 62, this inlet hole 611 is connected with this suction port 12 and this air outlet 13 with an intake manifold respectively with this air outlet hole 621, this back seat 62 combines with this front stall 61 and in this front stall 61 and 62 of this back seats this pneumatic diaphragm 63 is set, on these pneumatic diaphragm 63 inboard mats one respectively, following retaining ring 641,641 ' is fixed on the push rod 64, these push rod 64 1 ends contact with this resistance to compression assembly 65, these push rod 64 the other ends replace and make this positioning ball 66 these inlet holes 611 of sealing mutually with positioning ball 66, this resistance to compression assembly 65 is a spring, its the other end and one be arranged on the locating stud 67 location swivel nut 68 mutually elasticity replace, so when braking between high-speed travel, the pull of vacuum that engine produces is drawn the oil gas except the air outlet 13 of this Carburetor certainly, also can draw air from the air outlet hole 621 of this compensated with air valve 60 simultaneously, when the gas in this compensated with air valve 60 is exhausted the formation vacuum by engine, this positioning ball 66 can be attracted and no longer seals this inlet hole 611 (as shown in Figure 8) towards these air outlet hole 621 directions, the air of air-strainer can be entered in this compensated with air valve 60 by this inlet hole 611, and the duct 69 of suitable this positioning ball 66 and the formation of front stall 61 gaps enters the through hole 642 of these push rod 64 inside, pass this locating stud 67 and arrive engine through this air outlet hole 621, the oil gas that engine is absorbed is diluted by air, and no longer need oil gas from the Carburetor hyperabsorption, be disposed to airborne waste gas reduction so can make, reduce and pollute.In addition, compensated with air valve 60 of the present utility model can't produce start between generally advancing, forced start by the powerful pull of vacuum of engine when only braking in running at high speed, and when the engine pull of vacuum reduced, this resistance to compression assembly 65 of mat promotes this push rod 64 to be made these positioning ball 66 returns and replaces this inlet hole 611 of sealing.

Therefore, characteristics that can produce by the present invention and function through arrangement as after:

One, this working connection outlet 15 of the present utility model is arranged at the gap location of this pedestal 10 and this support 14, and the fuel particles that overflows can not become greatly because of refueling effect, allows the burning can be more complete, the reduction atmospheric pollution.

Two, the utility model makes this cone 22 except that the effect with choke because of this working connection outlet 15 is arranged at this cone 22 the place aheads, also possesses the effect that oil resistance is arranged, and allows Carburetor have better oil gas control stability.

Three, the cam 32 of the present utility model cone 22 that can effectively control Venturi tube cone group 20 displacement amount that attracted by the engine pull of vacuum makes the mixing of oil gas more stable.

Four, vacuum horsepower modulating valve 50 of the present utility model is when friction speed, but the pull of vacuum of mat engine regulate fuel oil automatically and replenish, better horsepower is provided.

But, the above is a preferable possible embodiments of the present utility model, and is non-so promptly limit to claim of the present utility model, so the equivalent structure that uses the utility model specification and graphic content to do such as changes, all in like manner be contained in the scope of the present utility model, close and give Chen Ming.

Claims

1. Carburetor is characterized in that it comprises:

One pedestal, it has a central flow channel, and these central flow channel two ends are respectively suction port and air outlet, and this pedestal is equiped with a support in this suction port one side, forms the working connection outlet of a ring-type between this support and this pedestal;

One Venturi tube cone group, it is arranged in this central flow channel, includes a stationary axle and a cone, and this stationary axle is fixedly arranged on this support, and this cone is movably set on this stationary axle;

One cam set, it comprises a camshaft, a cam and a plate, and this camshaft is hubbed at nearly this pedestal centre, and it is inside and outside and be connected with this camshaft that this cam and this connecting plate are arranged at this pedestal respectively, and this cam is replaced mutually with this Venturi tube cone group;

One horsepower of adjusting group, comprise a flap stationary axle, a flap and an oily line roulette wheel, this flap stationary axle is hubbed on the pedestal of the same side of nearly this air outlet and this cam set, and it is inside and outside and be connected with this flap stationary axle separately that this flap and this oil line roulette wheel are arranged at this pedestal respectively; And

One vacuum horsepower modulating valve, it is arranged at this pedestal top, includes a vacuum valve cover and an auxiliary spindle, is provided with a diaphragm between this vacuum valve cover and this pedestal, this diaphragm was connected with assisting spindle, and this auxiliary spindle vertically runs through this pedestal and activity is stretched in this central flow channel.

2. Carburetor as claimed in claim 1 is characterized in that: be provided with an oil groove in this pedestal, this oil groove is communicated with most emulsion tubes and two passages that are communicated with this working connection, and a vacuum duct that is communicated with this vacuum horsepower modulating valve and this central flow channel.

3. Carburetor as claimed in claim 1, it is characterized in that: this Venturi tube cone group has an at least one answer part and a jacking block, this answer part is arranged in this cone, these answer part two ends are replaced with this stationary axle and this cone inner edge respectively, and this jacking block is arranged at this cone one end and replaces mutually with this cam.

4. Carburetor as claimed in claim 1, it is characterized in that: the free end of this connecting plate is equipped with a cam orientation fine adjustment screw, this horsepower adjusting group has a positioning plate, this positioning plate is arranged at outside this oil line roulette wheel and is connected on this flap stationary axle, and this positioning plate is replaced mutually with this cam orientation fine adjustment screw.

5. Carburetor as claimed in claim 1 is characterized in that: this vacuum horsepower modulating valve has at least one elastic component, and this diaphragm is with two spindle fixed plate clampings, and these elastic component two ends are resisted against spindle fixed plate and this pedestal of this diaphragm bottom surface respectively.

6. Carburetor as claimed in claim 1, it is characterized in that: it further connects a compensated with air valve, this compensated with air valve comprises a front stall and a back seat that combines with this front stall, the two ends of this front stall and this back seat form an inlet hole and an air outlet hole respectively, and this inlet hole and this air outlet hole are connected with this suction port and air outlet with an intake manifold respectively.

7. Carburetor as claimed in claim 6 is characterized in that: this compensated with air valve also has a push rod, a resistance to compression assembly and a location steel ball, and this push rod one end contacts with this resistance to compression assembly, and this push rod the other end is replaced mutually with this positioning ball.