CN2804398Y - Dual-purpose feeder for gasoline and gas - Google Patents

Abstract

The utility model relates to a dual-purpose feeder for gasoline and gas, which is formed by assembling a fixed choke spraying pipe-type carburetor and a gas mixing regulator, wherein the carburetor is provided with a spraying pipe with thin wall in a fixed choke, and a fixing oil needle is arranged in the spaying pipe. The regulator is composed of a gas inlet system, a mixing system, a gas inlet one-way valve system, a starting system, etc. The gas inlet system is provided with a hole for measuring the quantity of gas and a small hole nozzle in which a fixing conical needle is arranged. The mixing system is composed of a fixed choke of the regulator and a channel at front end. The gas inlet one-way valve which is arranged at the rear end of the regulator is matched with the travel of an engine to automatically open and close. The starting system adopts a starting valve used for controlling the gas consumption. The regulator is not provided with any separate regulating system, but shares the regulating system of the carburetor. The dual-purpose feeder for gasoline and gas is suitable for two-choke and four-stroke engines with various displacements.

Description

Gasoline gas two-purpose supplier

Affiliated technical field

The utility model relates to the supplier of gasoline gas two-purpose motor.

Background technique

The gasoline of existing motor, gas two-purpose device are made up of gas supply system and gas supply system two-part.There are Carburetor and " EFI " two kinds of forms in the gas supply system.Carburetor particularly, owing to structural reason, the atomizing of gasoline and mix all poor, so oil consumption and discharging are all not ideal enough in use; " EFI " device is also because the difference of workmanship is all bigger to the influence of oil consumption and discharging.Gas supply system mainly contains two kinds of structures except gas cylinder (comprising angle valve) reduction valve: a kind of is to be provided with solenoid valve, mixer etc., and another kind is provided with decompression voltage stabilizer, acoustic resonator, hybrid regulator etc.Above-mentioned first kind of structure, the function of solenoid valve is the switching of the inflammable gas behind the control reduction valve, the switching of solenoid valve must be controlled by control circuit, the switching time must be within the intake stroke of motor, and the length that opens and closes the time must be complementary with the concentration of the required mixed gas of different power conditions of motor.This structure is similar as the fuel oil electric injection device, has shortcomings such as complex structure, cost height, easy break-down.Design of Mixer generally is that the import of air and a spout of combustion gas become to be arranged vertically, and this structure mixed effect is relatively poor.There is a design of Mixer in the U.S., and a spout of combustion gas is located in the interior circular trough of trunnion, and combustion gas is after the spout ejection, and the part combustion gas produces rotation by ring shaped slot, and mixability increases, but still not ideal enough.Above-mentioned second kind of structure set up structures such as decompression voltage stabilizer, acoustic resonator, hybrid regulator.This structure more complicated, and volume is bigger, on automobile and forklift etc., install and use all right, but on small-sized universal engine, use just undesirable, manufacture cost height not only, and, give Small Universal machinery because this structural volume is big, all make troubles as installations such as small power generation unit, water pump, mowing machines.Because the decompressor set up of this structure is decompressed to normal pressure to combustion gas, the degree of vacuum that the trunnion of combustion gas by mixer forms when being in air inlet is the combustion gas spout sucking-off of combustion gas by the trunnion place.Because the pressure at combustion gas spout place always alternately occurs at normal pressure and negative pressure, so combustion gas will produce pulse phenomenon.In order to overcome this phenomenon, in fuel gas supply devices such as automobile and forklift, set up acoustic resonator.The structure of acoustic resonator mainly resembles gas receiver, and volume is also bigger, has not only increased manufacture cost, makes troubles also for the installation of complete machine.In addition, existing gas engine all exists the problem of starting difficulty.

Summary of the invention

That the purpose of this utility model is to provide is simple in structure, energy consumption is low, discharge, start gasoline, gas two-purpose device easily.

The design's gasoline, gas two-purpose motor supplier comprise the fixed choke spraying tubular type Carburetor of our company's design and the gas mixing regulator of our company's design.Two kinds of devices lump together, and have formed gasoline, gas two-purpose motor supplier.Certainly, also available traditional Carburetor and gas mixing regulator are formed gasoline, gas two-purpose device.

The gas supply device is in traditional Carburetor fixed choke injection spray pipe to be installed, and spindle has been installed in the injection spray pipe, has constituted main oil supply system with foam tube and main jet etc.Other comprises systems such as oil-feed, starting, idling-transition equally.Injection spray pipe is designed to the thin-walled tubular structure, protrudes to be installed in the whole fixed choke.The tube wall upper edge axial direction of injection spray pipe is provided with the aperture that a row or the above dislocation of a row are arranged, and the size of aperture decides according to the turbidity test of degree, technology capability and the oil product of atomizing etc.; Oil gas delivery volume when the peak output that the quantity of aperture is set according to motor is exported is set.For the oil gas that makes foamed does not produce eddy current in injection spray pipe, and can produce normal direction spray power, in aperture, spray, produce better atomizing effect, in injection spray pipe, be provided with the spindle of fixing acicular structure.

The fuel gas supply device utilizes the gas mixing regulator of our company's design, and this regulator comprises compositions such as air inlet, mixing, breather check valve and starting system.Gas handling system is provided with gas metering-orifice and aperture jet pipe, has designed fixing cone type pin in the aperture jet pipe; Hybrid system mainly contains the gas channel of fixed choke, aperture jet pipe and trunnion front end and forms; The breather check valve design is in the back of trunnion rear end air passageways; Starting system is made up of the starting drive etc. of control gas flow.This regulator is not established the butterfly valve type regulation structure, with the shared adjusting butterfly valve of gas supply device.

The design's gasoline, gas two-purpose supplier are compared than existing dual-purpose apparatus, and following advantage is arranged:

1, the design's Carburetor so when motor uses gasoline, want energy saving than traditional Carburetor, is also having positive effect aspect the minimizing toxic emission owing to adopted the structure of injection spray pipe.

2, when using combustion gas, because regulator has adopted the aperture nozzle structure, combustion gas and air are fully mixed, improved combustion efficiency, saved combustion gas, reduced toxic emission.In addition, the reverse damping function of aperture under the situation of not using acoustic resonator, has reduced the pulse phenomenon of combustion gas, has improved reduction valve and manometric working life in the gas combustion apparatus.

3, this regulator has adopted the structure of one-way valve, thus reduced structures such as solenoid valve or decompression voltage stabilizer, so simple in structure, effective advantage is arranged.

4, adopt the starting valve structure, have and start advantage easily.

5, combustion gas can directly directly be used after the decompression of normal domestic reduction valve.

Description of drawings

Accompanying drawing is the schematic representation of the gasoline gas two-purpose supplier that combines of fixed choke spraying tubular type Carburetor and gas mixing regulator.

Accompanying drawing: 1 main jet, 2 foam tube, 3 injection spray pipes, 4 spindles, 5 butterfly valves, 6 gas metering-orifices, 7 aperture jet pipes, 8 tapered pins, 9 starting valves, 10 one-way valves, 11 are silently.

Embodiment

Now in conjunction with the accompanying drawings, describe the design in detail:

According to accompanying drawing, this gasoline gas two-purpose supplier is combined by fixed choke spraying tubular type Carburetor (following abbreviation Carburetor) and gas mixing regulator (following abbreviation regulator).This Carburetor has improved the spout in the main oil supply system, and remaining does not change as systems such as oil-feed, starting, idling-transition, so only main oil supply system is elaborated.It comprises main jet 1, foam tube 2, injection spray pipe 3, spindle 4, butterfly valve 5 etc.The 26S Proteasome Structure and Function of main jet 1 and foam tube 2 is the same with traditional Carburetor, injection spray pipe 3 is original main jet pipe lengthening, extend in the whole trunnion of Carburetor, the partial design that extend into trunnion becomes round thin walled structures, airintake direction dorsad at tube wall has designed a row or the aperture more than the row, the size of aperture decides according to the turbidity test etc. of degree, technology capability and the oil product of atomizing, and the oil gas delivery volume during peak output output that the quantity of aperture is set according to motor is set.Because the aperture major part is arranged on trunnion air-flow high-speed region, oil gas is big with the area of contact of air during oil spout, so the better effects if of atomizing, mixing.Spindle 4 is designed to acicular structure, is fixedly mounted in the middle of the injection spray pipe, mainly plays guide functions, make oil gas in injection spray pipe, not produce eddy current, and can produce and strengthen normal direction spray power, the gasoline that makes foamed produces better atomizing effect during from the aperture ejection of injection spray pipe, and fuel feeding is stable.The unlatching size of butterfly valve 5, the air mass flow of having regulated the trunnion place that flows through, the fuel injection quantity of injection spray pipe is regulated in the change of the degree of vacuum at trunnion place just, satisfies the quantity of the required gasoline-air mixture of each operating mode of motor.The size of gas metering-orifice 6 is set according to the discharge capacity and the gaseous species of motor.Aperture jet pipe 7 is designed to the cartridge type thin walled structures, extend in the whole trunnion, airintake direction dorsad at tube wall has designed a row or the aperture more than the row, combustion gas can be sprayed in whole trunnion, strengthened area of contact with air draught, reach with air and fully mix, the size of aperture and quantity are decided by what and the processing technology etc. of air demand.Because the aperture major part is arranged on trunnion air-flow high-speed region, so can be with the variation of engine operating condition, the degree of vacuum at trunnion place changes, play the pressure difference that regulate to change aperture spout place and place, gas flow hole, regulate combustion gas flow, satisfy the requirement of Under Different Work Condition of Engine for fuel gas mixture concentration and quantity.Tapered pin 8 is fixedly mounted in the aperture jet pipe, the effect of playing water conservancy diversion and strengthening fuel gas injection power.Starting valve 9 is to be provided with for motor can start smoothly when using combustion gas.When engine start, starting speed is lower, and the air that enters cylinder in the unit time is less, so the gas flow of this moment is also smaller, rather than common way: when starting, to add rich mixture.The start-up flow of starting valve is pressed the gas flow design of the required starting of motor different displacements, and after starting was finished, handle was opened to the working position gradually, had enough combustion gas to pass through when guaranteeing full engine load.Just, starting valve when the starting position, combustion gas to pass through the hole littler than gas metering-orifice; When the working position, combustion gas to pass through the hole bigger than gas metering-orifice.One-way valve 10 is arranged on the rear end of regulator trunnion, can be with separately design of governor body, stack mounting.The major function of one-way valve is when the engine charge stroke, opens automatically owing to the negative pressure that produces, and is closing automatically At All Other Times, stops combination gas to leak by empty filter.Silently 11 setting is in order to process the needs with assembly technology.Regulator is not established closure, with the shared closure of Carburetor.

Be noted that especially after using Carburetor, as using combustion gas instead, must cut off the oil circuit of Carburetor, and the trapped fuel in the Carburetor lubricating cup is used up or bled off.Equally, in the time of using Carburetor, must cut off the source of the gas of regulator.

The design's gasoline, gas two-purpose supplier are applicable to two-stroke and four-stroke motor, but when two stroke engine uses combustion gas, must adopt machine oil drop pump.But the utility model matching Design becomes automobile, forklift, motorcycle and universal machine etc. to use the duel fuel engine of gasoline and combustion gas.

Claims (1)

1. A kind of gasoline gas two-purpose supplier is characterized in that: the gas supply system in the fuel supply system is provided with fixed choke spraying tubular type Carburetor, and gas supply system is provided with gas mixing regulator.Main oil supply system being provided with of Carburetor is installed in the thin wall-type aperture injection spray pipe in the whole trunnion, is provided with a row or a plurality of rows aperture at the axial direction of the semicolumn tube wall at the back side of airintake direction, and fixing spindle has been installed in the injection spray pipe; The air supply system of regulator is provided with the gas metering-orifice, be provided with the aperture jet pipe of thin wall shape structure in the whole trunnion, be provided with a row or a plurality of rows aperture at the air inlet direction back side of tube wall, tapered pin has been installed in the aperture jet pipe, the rear end of mixing chamber is provided with one-way valve, and is provided with starting valve.

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