CN201037439Y - Motorcycle combustion gas mixing adjuster - Google Patents

Abstract

The utility model provides a gas mixture regulator for motorcycles. A regulating device of the utility model depends on the position change of a plunger arranged at the body plunger hole to enable a regulating rod arranged on a plunger to open a certain quantity of small holes arranged on a regulating pipe so as to control the gas flow and the size of a throat. Under an ideal state, the regulator is capable of providing optimal mixed gas to ensure the engine to run stably to realize good acceleration performance, low consumption, big power and good exhaust. A simultaneous control circuit for a solenoid and a magnetic motor enables the gas to be opened or closed by keeping the same working status of the engine, which means that when the engine is started, the solenoid opens automatically and when the engine is shut down, the solenoid closes automatically, ensuring safety and reliability. A cold start electric control valve and an idle speed gas and air regulating device achieves the functions in good starting performance and stable running under idle speed control.

Description

Motorcycle gas mixing regulator

Technical field

The utility model patent relates to a gas mixing regulator used by motorcycles (including mopeds). The gas involved may include compressed natural gas, petroleum gas, biogas, straw gas, etc.

Background technique

Most of the motorcycle engines currently produced and developed at home and abroad use gasoline as fuel. However, with the continuous rise of oil prices, the requirements for emissions are getting higher and higher, and people are constantly working hard to explore alternative fuels. Natural gas (natural gas, petroleum gas, etc.) and artificial gas (artificial biogas, straw gas, etc.) are an ideal choice. At present, the method of storing gas by compression has basically been solved, and many places are solving the inflation problem. However, it is the goal that people are striving to develop to successfully develop a controller that can accurately adjust the gas volume according to different engine operating conditions, and is reliable and low in cost. Existing electronic technology is used to control the gas injection volume device has been adopted in cars, but its production cost is very high, it is difficult to apply on motorcycles, and the reliability of the electric gas injection device is also relatively poor. Shanghai Jiadongli Environmental Protection Technology Co., Ltd.'s "Liquefied Petroleum Gas Motorcycle, Moped Engine Controller" (Patent No.: 012246743), which uses the air valve similar to the plunger carburetor---gas needle synchronous control valve, is The gas flow is controlled by the change of the annular gap between the gas needle and the circular nozzle. Due to the limitation of this structure, it is difficult to control the flow of gas more accurately. It also designed a vacuum opening and closing valve. This design uses the change of vacuum degree to open and close the gas, so that the opening and closing of the gas is synchronized with the state (working, stop) of the engine. It always vibrates at high speed with different amplitudes and frequencies, so the service life of the diaphragm is very short, which leads to poor reliability and increases the cost of use.

content of the invention,

The purpose of the utility model is to provide a gas mixing regulator, which is mainly suitable for occasions where the rotation speed and torque of a motorcycle engine need to change frequently. It can provide the required ideal mixture under various working conditions of the engine, so that the engine always works in an ideal state, with less gas consumption, less exhaust emissions, safe and reliable use, low cost, and can be applied to different gas source requirements.

The motorcycle gas mixing regulator designed in this paper is composed of five parts: gas regulating device, gas mixing device, cold start electric control valve device, solenoid valve and magneto synchronous control circuit device, idle gas and air conditioning device. The body of the mixing regulator has structures such as the plunger hole for installing the plunger, the variable throat hole, the front passage, the air and gas adjustment threaded hole, and the gas and air passage. The cold start electric control valve and solenoid valve are fixed on the ontology.

The gas regulating device is composed of a plunger, a regulating tube, a regulating rod, a gas measuring hole, and a bulkhead. The bottom of the plunger is designed to be hollow, and the part of the adjusting pipe extending into the throat is designed as a cylindrical thin-walled structure. Two or more rows of misplaced and unequally spaced small holes are designed in the direction facing away from the air intake. The head of the adjusting rod is designed It has a short taper, a cylindrical shape in the middle, and two adjustment slots at the end. The card fixes the position of the adjustment rod, and the plunger and the adjustment rod rise and fall synchronously. The gas mixing device consists of a variable throat and a front channel to form a gas mixing chamber. The cold start electric control valve device is composed of a cold start electric control valve. When the engine is cold start, the electric control valve is in an open state to increase the supply of mixed gas. The solenoid valve and magneto synchronous control circuit device is composed of solenoid valve, magneto synchronous control circuit, etc. The magneto synchronous control circuit receives the magneto potential signal of the engine, and the relay or triode works after being amplified by the amplifier circuit, so that the solenoid valve and the battery form circuit, the solenoid valve opens; otherwise, the potential disappears, the solenoid valve closes, and the opening or closing of the gas is synchronized with the state of the engine. The idle gas and air conditioning device consists of a gas adjusting screw and an air adjusting screw.

Compared with the existing engine gas control devices at home and abroad, the motorcycle gas mixing regulator designed in this design has the following advantages:

1. The biggest feature of this design is "accurate and reliable adjustment". The gas engine was invented earlier than the oil engine, but today, when the gas storage technology has been basically solved, why the use of gas in the engine cannot be widely promoted, mainly because of the existing technology It is not ideal in the adjustment link. This design can reliably provide an ideal regulating system, so that the engine can work stably under the most ideal state. The product manufactured by this technology has simple structure and low cost.

2. The magnetic motor synchronous control circuit is used to automatically control the solenoid valve, so that the opening and closing of the gas are synchronized with the operation and shutdown of the engine. The valve has the advantages of reliable use and low overall use cost.

3. The mature cold start electric control valve used on carburetors is used to control the supply of mixed gas during cold start and improve the cold start performance, which is more convenient and reliable than manual control of cold start valves.

Description of drawings

Accompanying drawing is the schematic diagram of the motorcycle gas mixing regulator of this design.

Now describe this design in detail in conjunction with accompanying drawing.

According to the accompanying drawings, the motorcycle gas mixing regulator is synchronously controlled by plunger 1, regulating tube 2, regulating rod 3, body 4, gas measuring hole 5, bulkhead 6, regulating groove 7, card 8, solenoid valve 9, and magneto Circuit 10, cold start electric control valve 11, idle speed air adjustment screw 12, idle speed gas adjustment screw 13, variable throat pipe 14, front channel 15 and other components.

Detailed ways

The gas used by the motorcycle must be pressurized and packed in a special container, and provided to the mixing regulator after being decompressed by the decompression and stabilizing device during use.

The plunger 1 rises and falls synchronously with the adjusting rod 3 . The regulating pipe 2 protrudes and is installed in the whole throat of the body 4, and the protruding part is higher than the throat. The gas measuring hole 5 is designed according to the maximum required gas volume, and is threadedly connected with the body 4, and the regulating pipe 2 is supported to make it reliably fixed. The bottom of the plunger 1 is designed to be hollow, leaving space for the adjustment tube to be installed. The bulkhead 6 is provided for the needs of processing and installation techniques. Two adjustment grooves 7 are arranged on the top of the adjustment rod 3, and the position of the adjustment rod 3 is fixed with a card 8. Electromagnetic valve 9 and cold start electric control valve 11 are fixedly installed on the body 4, and the opening and closing of electromagnetic valve 9 (controlling the opening and closing of gas) is controlled by magneto synchronous control circuit 10, by the control of magneto synchronous control circuit 10, make The opening and closing of the gas is synchronized with the running and stopping of the engine of the motorcycle, so that not only the engine is easy to start, but also there is no gas leakage when the motorcycle stops, which ensures safety. (equally can be assembled on the general engine, guarantees its reliability and safety). The magneto synchronous control circuit 10 is designed in this way, because the rotating speed of the motor is low when the motorcycle engine is started (electric starter or kick start), the rotating speed of the magneto on the engine is also low, and the magneto primary coil at this moment The generated electromotive force is also small, and the voltage of the stabilized ballast cannot open the solenoid valve. The magneto synchronous control circuit uses the electrical signal sent by the magneto and amplifies it, and opens the relay (or triode) in the circuit, so that the battery and the electromagnetic The valve generates a circuit to make the solenoid valve work (open); on the contrary, when the machine is shut down, the electrical signal is lost, the relay is closed, the circuit between the battery and the solenoid valve is disconnected, and the solenoid valve stops working (closed). The cold start electric control valve 11 is designed by using the electric control cold start valve of the vacuum carburetor on the motorcycle. Because the friction resistance of the engine is relatively large when the engine is in a cold state, the minimum stable speed of the engine is a little higher, but after the warm-up , The requirement for stable speed is lower, that is, after the engine is warmed up, the supply of mixed gas should be less. After the engine is warmed up, the cold start electric control valve is in the closed state. The difference from the cold start valve of the carburetor is to design a structure with a better match between gas and air. The idle air adjustment screw 12 and the idle gas adjustment screw 13 are independent air supply systems specially designed for engine idle. The variable throat pipe 14 and the front channel 15 constitute a gas mixing chamber.

The following mainly explains the "precise and reliable adjustment" of the mixed gas of the engine under various working conditions.

The regulating pipe 2 is designed as a cylindrical thin-walled structure in the part extending into the throat, and two or more rows of small holes are designed in the direction of the air intake. It is set according to the displacement of different engines and the amount of gas (which can be obtained by experiment) required by different working conditions. Through the designed process and tooling, the size and position of the small holes of each regulating tube can be consistent. The front portion of the adjusting rod 3 is made into a short taper, which is convenient for installation. The cylindrical portion in the middle is a precise sliding fit with the inner hole of the regulating tube, and the intersection of the cone and the cylinder on the regulating rod 3 controls the opening quantity of the small hole. The adjusting rod 3 and the plunger 1 rise and fall synchronously to provide the air and gas volume required by the engine under different working conditions. Because the plunger 1 is constantly opened or closed, the small hole on the regulating tube is constantly opened or closed, so the best mixture of the engine is always provided. Many small holes in the regulating tube are both regulating holes and spray holes, so the mixing with air is more sufficient. This structure is the same as using the Venturi principle, using the difference in the degree of vacuum generated by the flow of air at the throat, changing the structure of the gas flow, and using the difference in the annular cross-section formed by the long-tapered gas needle and the circular nozzle hole to control the gas. Compared with the quantitative structure, it has qualitative progress and improvement, even comparable to the gas electric injection device.

Claims (6)

1. motorcycle gas mixing regulator, it is characterized in that: form by gas regulating device, gas mixing unit, cold starting electrically-controlled valve device, solenoid valve and five parts such as magnetogenerator synchronization control circuit device, idling combustion gas and air bells conditioner, have plunger hole, variable venturi hole (14), prepass (15), air and the combustion gas of installation plunger (1) to regulate tapped hole and structures such as combustion gas and air passageways on the body (4), cold starting electrically-controlled valve and solenoid valve are screwed on body.

2. hybrid regulator according to claim 1, it is characterized in that gas regulating device is by plunger (1), adjutage (2), adjustable lever (3), gas metering-orifice (5), compositions such as (6) silently, plunger (1) bottom design becomes hollow, adjutage (2) stretches into the trunnion partial design and becomes the cartridge type thin walled structures, two rows have been designed or two rows are above misplaces at airintake direction dorsad, not equidistant aperture, adjustable lever (3) head design becomes short tapering, the middle part cylinder type, afterbody has two regulating tanks, the position of card (8) secured adjusted bar (3), plunger (1) and adjustable lever (3) be synchronization lifting together.

3. hybrid regulator according to claim 1 is characterized in that gas mixing unit has constituted gas mixing chamber by variable venturi (14) and prepass (15).

4. hybrid regulator according to claim 1 is characterized in that cold starting electrically-controlled valve device is made up of cold starting electrically-controlled valve (11), and when engine cold starting, electrically-controlled valve reaches the purpose of the delivery volume that increases mixed gas in opened condition.

5. hybrid regulator according to claim 1, it is characterized in that solenoid valve and magnetogenerator synchronization control circuit device be made up of solenoid valve (9), magnetogenerator synchronization control circuit (10) etc., the magnetogenerator synchronization control circuit is accepted the magnetogenerator electric potential signal of motor, relay or triode work after amplification circuit amplifies, make solenoid valve and storage battery constitute the loop, solenoid valve is opened; Otherwise electromotive force disappears, closed electromagnetic valve, and what reached combustion gas opens or closes state synchronized unanimity with motor.

6. hybrid regulator according to claim 1 is characterized in that idling combustion gas and air bells conditioner be made up of combustion gas adjusting screw (13), Air Adjust Screw (12).