CN2439393Y - Gas fuel motor vehicle - Google Patents

Abstract

The utility model relates to a gas fuel motor vehicle, comprising a steel cylinder for liquefied gas, an engine and a discharging gas silencing device. The utility model is characterized in that the steel cylinder is provided with a gas charging valve and a gas outlet valve; a supply gas line from the steel cylinder to the engine is provided with a combination valve provided with a gas flow sensor which is open to a gas flow meter and a decompression valve used for limiting pressure, a control valve provided with a pressure reducing valve, an electromagnetic valve controlled by an ignition switch and a safety protective valve, and a mixer.

Description

Gas fuel motor vehicle

The utility model relates to a kind of Gas fuel motor vehicle, especially makes the motor bike of fuel with autogas.

Two-stroke motorcycle is not only simple in structure, easy to maintenance and with to compare its tractive performance with the 4 stroke motorcycle of discharge capacity more excellent.But, also limited the development of two-stroke motorcycle thus because the waste gas blowdown problem of two-stroke motorcycle can not get effective solution all the time.

For this reason, the purpose of this utility model is to provide a kind of Gas fuel motor vehicle, and it is by the failure-free gas supply system, can guarantee that motor bike stably moves and reduces the waste gas blowdown.

The technical scheme that realizes the utility model purpose is: a kind of Gas fuel motor vehicle; comprise cylinder for liquefied gas, driving engine and air exhaust muffler device; it is characterized in that: steel cylinder be provided with fill, air outlet valve; to the supply air line of driving engine, be provided with combine valve, control cock and mixer at steel cylinder; wherein; combine valve has gas quantitative transducer that leads to gas meter and the blowdown valve of making voltage-limiting protection, and described control cock has reducing valve, by the electromagnetic valve and the safety protective valve of ignition lock control.

According to national standard such as GB/T5466-93 and GB14621-93 and by the idling method this motor bike is detected, the more gasoline-fueled motor bike of emission pollutants that blue gas burning back is produced greatly reduces, HC≤500ppm in its emission pollutants, CO 0.01～0.04% all meets the environment protection emission requirement, and minor failure do not occur in 10,000 kilometers travelling.

The utility model is described in further detail below with reference to accompanying drawing.

Fig. 1 is the whole supply air line scheme drawing of the utility model.

Fig. 2 is the car load scheme drawing.

Fig. 3 is the gas cylinder scheme drawing.

Fig. 4 be combine valve and fill, the birds-eye view of air outlet valve.

Fig. 5 is the cutaway view that fills air outlet valve.

Fig. 6 is the profile scheme drawing of control cock.

Fig. 7 is the cutaway view along Fig. 6 A-A place.

Fig. 8 is the cutaway view along Fig. 6 B-B place.

Fig. 9 is the three-dimensional cutaway view of mixer.

Figure 10 is the wheel leakage protective schematic circuit diagram of safety protective valve.

With reference to each accompanying drawing; this motor bike comprises cylinder for liquefied gas 3, driving engine 12 and air exhaust muffler device 14; steel cylinder 3 be provided with fill, air outlet valve 18; to the supply air line of driving engine 12, be provided with combine valve 2, control cock 5 and mixer 11 at steel cylinder 3; wherein; combine valve 2 has the gas quantitative transducer 16 that leads to gas meter 10 and makes the blowdown valve 15 of voltage-limiting protection, and described control cock 5 has reducing valve 6, by the electromagnetic valve 7 and the safety protective valve 8 of ignition lock 9 controls.

The utility model further embodiment is: fill, air outlet valve 18 has to the gas-charging connection 20 of gas cylinder 3 gas injections and the air outlet adapter 19 that is connected with reducing valve 6 inlet suction ports 28, charge valve is made of spring 23, steel ball 22 and packing seal 21, i.e. check valve; Air outlet valve has a valve rod 25 that links to each other with peripheral hardware knob 17, this valve rod 25 is positioned at and fills, on the outlet pipe of air outlet valve 18, the two ends of valve rod 25 are packing seal 24, described reducing valve 6 has a peripheral voltage regulation knob 35, this knob 35 stretches into the inner of valve body 27 and passes through thrust spring 36, trip ring 37, following needle stand 40 jackings at packing seal 38 and packing seal 38 centers an end that is positioned at lower chamber 34 cubic pins 32, the four directions pin 32 the other end and between the overhead spring 29 of upper chamber 30, clamped needle stand 41 and packing seal 42, the shank of four directions pin 32 is positioned to be communicated with goes up lower chamber 30, in 34 the air flue 31, upper chamber 30 is through inlet suction port 28 and fill, the air outlet adapter 19 of air outlet valve 18 leads to gas cylinder 3, lower chamber 34 is connected with air-pressure gauge 4 through air flue 39, meanwhile, lower chamber 34 leads to the air inlet air flue 47 that is connected with the air chamber 49 of electromagnetic valve 7 through another road air flue 33, there is one in the air chamber 49 of electromagnetic valve 7 by the air extractor duct 48 of iron core 44 through packing seal 46 shutoff, iron core 44 outer suits the stage clip 45 that makes this air extractor duct 48 be in normally off, the top of iron core 4 is an electromagnetic induction coil for the electromagnet 43 by ignition lock 9 controls, air extractor duct 48 is through joint 26, the admission port 50 of pipeline and mixer 11 leads to the air chamber 52 of mixer 11, a main air tube seat 54 that is extended up to blending box 51 by air chamber 52 is arranged in this air chamber 52, be distributed with the induction opening 53 that communicates with top master's pore 55 around the main air tube seat 54, the main air tube 56 that is connected with throttle gate 57 stretches in the main pore 55 from top to bottom, one end of blending box 51 is provided with by nut 58 and regulates the air intake 60 of suction quantity by vent plug 59, its other end leads to driving engine 12 cylinders, is provided with three-way catalytic apparatus 13 on the exhausting silencer pipeline of driving engine 12.

Described safety protective valve 8 has the sampling gas sensor, and the normally closed switch 61 of this gas sensor control is connected in (see figure 10) on the current supply circuit of electromagnetic valve 7 with ignition lock 9.When gas leakage, the normally closed switch 61 of gas sensor promptly disconnects the current supply circuit of electromagnetic valve 7, and after electromagnetic valve 7 dead electricity, under the effect of stage clip 45, iron core 44 is by packing seal 46 shutoff air extractor duct 48 again, and promptly combustion cutoff 12 sources of the gas force it flame-out.

Described gas cylinder 3 and the combine valve 2 that is contained on the gas cylinder 3 are the approved product that Changzhou Aircraft Manufacturing Factory is produced, and belong to prior art.When giving gas cylinder 3 gas injections, can be directly with the gas injection joint of supply station with fill, the gas-charging connection 20 of air outlet valve 18 is connected, when depressing the steel ball 21 of gas-charging connection 20, promptly begin to gas cylinder 3 gas injections, meanwhile, can observe the air-pressure gauge 4 on the control cock 5, this air-pressure gauge 4 shows that gas cylinder 3 is through post-decompression air pressure, fill with when reading is during for 0.04Pa, unload gas injection joint, then steel ball 22 cuts out the inflation air flue again by packing seal 21 under the effect of spring 23.At this, the advantage of fill, air outlet adapter being set up respectively is to need not to unload air outlet adapter during inflation.When starting motor bike, can open air outlet valve earlier, promptly unscrew the peripheral hardware knob 17 of air outlet valve, open ignition lock 9 and restart driving engine 12 (electricity starts or foot-operated the startup), blue gas by the road, the upper chamber 30 of reducing valve 5, air flue 31 enters lower chamber 34, subsequently, wherein one the tunnel leads to air-pressure gauge 4 through air flue 39, electromagnetic valve 7 is then led on another road, because ignition lock 9 is opened, the electromagnet 43 of electromagnetic valve 7 promptly pick up iron core 44 and take up the packing seal 46 that air extractor duct 48 in shutoff first after electric, thereby make blue gas enter mixer 11 by the road, and enter blending box 51 through the main pore 55 on main air tube seat 54 and top thereof, meanwhile, under the effect of descent of piston negative pressure, blue gas and air-blending enter cylinder in the blending box 51, and promptly start the engine 12.When screwing the peripheral voltage regulation knob 35 of reducing valve 6, its inner end that stretches into valve body 27 promptly is positioned at an end of the cubic pin 32 of lower chamber 34 by following needle stand 40 pushing tows that promote spring 36, trip ring 37, packing seal 38 and center thereof, the pressure jack-up that makes its other end overcome overhead spring 29 is simultaneously gone up needle stand 41 and packing seal 42, thereby made the gas gap strengthen, so flow of lpg increases, the air pressure of lower chamber 34 promptly rises; Otherwise unscrew knob 35, then air pressure descends.

Claims (3)

1, a kind of Gas fuel motor vehicle; comprise cylinder for liquefied gas, driving engine and air exhaust muffler device; it is characterized in that: steel cylinder be provided with fill, air outlet valve; to the supply air line of driving engine, be provided with combine valve, control cock and mixer at steel cylinder; wherein; combine valve has the gas quantitative transducer that leads to gas meter and the blowdown valve of making voltage-limiting protection, and described control cock has reducing valve, by the electromagnetic valve and the safety protective valve of ignition lock control.

2, according to the described motor bike of claim 1, it is characterized in that: fill, air outlet valve has to the gas-charging connection of gas cylinder gas injection and the air outlet adapter that is connected with the reducing valve inlet suction port, charge valve is by spring, steel ball and packing seal constitute, air outlet valve has a valve rod that links to each other with the peripheral hardware knob, this valve rod is positioned at and fills, on the outlet pipe of air outlet valve, the two ends of valve rod are packing seal, described reducing valve has a peripheral voltage regulation knob, this knob stretches into the inner of valve body and passes through thrust spring, trip ring, the following needle stand jacking at packing seal 38 and packing seal center an end that is positioned at lower chamber four directions pin, the four directions pin the other end and between the overhead spring of upper chamber, clamped needle stand and packing seal, the shank of four directions pin is positioned at and is communicated with the air flue of going up lower chamber, upper chamber is through inlet suction port and filling, the air outlet adapter of air outlet valve leads to gas cylinder, lower chamber is connected with air-pressure gauge through air flue, meanwhile, lower chamber leads to the air inlet air flue that is connected with the air chamber of electromagnetic valve through another road air flue, there is one in the air chamber of electromagnetic valve by the air extractor duct of iron core through the packing seal shutoff, the outer suit of iron core the stage clip that makes this air extractor duct be in normally off, the top of iron core is the electromagnet by ignition lock control, air extractor duct is through joint, the admission port of pipeline and mixer leads to the air chamber of mixer, a main air tube seat that is extended up to blending box by air chamber is arranged in this air chamber, be distributed with the induction opening that communicates with top master's pore around the main air tube seat, the main air tube that is connected with throttle gate stretches in the main pore from top to bottom, one end of blending box is provided with the air intake of being regulated suction quantity by nut by vent plug, its other end leads to engine cylinder, is provided with three-way catalytic apparatus on the exhausting silencer pipeline of driving engine

3, motor bike according to claim 1 and 2 is characterized in that: safety protective valve has the sampling gas sensor, and the normally closed switch of this gas sensor control is connected on the current supply circuit of electromagnetic valve with ignition lock.

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