RU2013220C1 - Motocycle with side-car - Google Patents

Abstract

FIELD: automotive engineering. SUBSTANCE: motocycle has air cooled motor, adjustable ignition, separately fed motor cylinders, and fuel tank of intricate configuration. The fuel tank is expanded in size and provided with fuel level pickup. The fuel tank is located in side-car and reliably sealed. Bottom of the fuel tank is provided with port to receive a paper carton partition wall serving as a safety valve against explosion. If necessary, the fuel tank is enclosed by reinforced shield. EFFECT: enhanced safety in operation. 8 cl, 4 dwg

Description

 The invention relates to road transport equipment, in particular to a motorcycle designed for use with a towed carriage, and can be used in all sectors of the economy.

 The well-known heavy class Dnepr motorcycles K-650, Dnepr-12, Dnepr MT-9, Dnepr MT-10-36, Ural M66 and M67-36 are designed for two-passenger riding, significant transportation cargo over long distances. Their engines are two-cylinder, carburetor, four-stroke, carrying capacity within 250 kg.

 The Dnepr-12 heavy class motorcycle is known with a two-cylinder opposed, four-stroke, lower valve engine designed for cooling from the oncoming air flow, with a six-volt electrical equipment, with a lever mechanism for starting the engine, with manual adjustment of the ignition timing, a two-carburetor with a raised gas tank for gravity fuel.

 This motorcycle is not suitable for use in difficult conditions. For example, it cannot be used for walking in mountainous areas, in hot regions, on sandy and rough roads due to insufficient cooling by engine air.

 As shown by operational practice, six-volt electrical equipment does not justify itself in work. A charging DC generator often fails, reducing motorcycle reliability.

 The engine of a heavy class motorcycle is started using a special trigger with a foot pedal.

 During operation of the heavy motorcycle engine, pulsating pressure is generated in the crankcase. To smooth out pulses and to avoid oil loss, a breather mechanism is provided, which does not justify itself in operation, since combustible vapors are released into the atmosphere, and the mechanism itself increases the mass and dimensions of the engine.

 When the engine of a heavy motorcycle is working, the synchronous operation of the cylinders is often disrupted, this causes an excessive consumption of fuel and sometimes a large loss of power. This phenomenon causes a two-carburetor system, since the enrichment of the combustible mixture cannot be the same.

 On heavy motorcycles K-750, Dnepr-12, etc., the ignition timing is manually adjusted using the lever. The engine characteristic, power, efficiency, reliability and durability depend on it.

 The gas tank on the motorcycle is installed above the running engine, a bundle of electrical wires and appliances, which creates an increased fire hazard.

 The aim of the invention is the improvement of a heavy class motorcycle with engine modernization, the use of advanced devices and components, which will significantly increase its technical level, reliability, durability with the previous dimensions and metal consumption.

 The goal is achieved by using an integrated device on a heavy class motorcycle and its engine. The schematic diagram of the device contains new functional, structural relationships and significant distinguishing features.

 The use of a dynarter after switching its scheme to the right rotation and complete reconstruction of the air turbine in order to increase its performance for cooling a horizontal twin-cylinder engine with rear-facing rotation allows a significant increase in the technical level, i.e., to provide the engine with reliable forced cooling (thereby improving performance motorcycle), starter start from rechargeable batteries and their charging from a dynastarter of a direct current, with transition to a door motorcycle volts electrical equipment.

 To achieve the above, the main front neck of the crankshaft is lengthened and brought out, the convex front cover of the gas distribution box together with the ignition system devices and the breather mechanism is completely removed, making room for the installation of a smooth cover on which the fixed components and parts of the dynastarter and air turbine are mounted, and on the elongated the neck of the crankshaft - rotating.

 Removing the six-volt dynamo and cutting off its nests made it possible to install a breaker-distributor with automatic adjustment of the ignition timing using an oil pump drive.

 In order to ensure stable synchronous operation of the engine cylinders and to avoid overheating, one common automobile-type carburetor is used, for example, ZAZ-698, which is mounted on an arc-shaped collector connecting two suction cavity cylinders. The collector is equipped with electrothermal elements. Heated manifold increases fuel economy, improves its combustion, as well as engine start.

 The use of one car carburetor of the aforementioned model and an ignition interrupter-distributor makes it possible to use automatic adjustment of the ignition timing, acting on the speed of the crankshaft (centrifugal force) and on the engine load (vacuum). Engine performance is greatly improved.

 In order to ensure fire safety and more free access to the engine, the gas tank is transferred to the trunk of the stroller, fuel is supplied to the carburetor by a gas pump. A dashboard is installed in place of the gas tank: ammeter, fuel gauge, ignition switch (aka engine start switch), cornering relay, warning lights. To cover the engine from above and sides, an easily removable hood with side (pocket) racks for spare parts and tools is manufactured.

 In FIG. 1 shows a stroller of a heavy class motorcycle (with a partial cutaway) with a fuel compartment device and a gas tank in it; in FIG. 2 - the front of the motorcycle of a heavy class, which shows the shape of the control panel and its installation location; in FIG. 3 is a section AA in FIG. 2; in FIG. 4 - an advanced heavy-duty motorcycle engine.

 To transfer the engine of a heavy class motorcycle to forced air cooling, a dynastarter is used. Extremely small size allows you to place it on the front of the engine.

 The use of the dynastarter as a universal unit allows providing the engine with forced cooling, starter starting of the engine from rechargeable batteries and their reliable charging, with the transition to twelve-volt electrical equipment.

 The electrical circuit changes to the right rotation by soldering the shunt ends with an anchor.

 In connection with the transition to the right rotation and in order to increase productivity, the air turbine undergoes a complete reconstruction: its diameter and air capture blades increase, a special guiding casing with plumage inside is made to direct air flows over the entire heated area and uniformly cool the two-cylinder engine.

 In accordance with the dimensions of the dynastarter hub and stuffing box packing, the front radical neck of the crankshaft is built up using the left thread ⌀ 22 x 2.

 Ignition devices are completely removed from the front of the engine along with the convex gas distribution cover and breather mechanism. The cam roller of the chopper, the breather rotor are cut off on the camshaft and the protruding camshaft is partially cut so that the gas distribution box can be closed with a smooth steel cover.

At the exit to the outside of the elongated neck of the crankshaft in the gas distribution cover with strict centering, a hole is made for installing the base, on which the fixed parts of the dynastarter are fixed, and a self-clamping gland seal is installed in the center of the base. All this made it possible to fix the base of the turbine, the fixed parts of the dynastarter, the voltage regulating relay on the smooth cover, and the rotor of the dynastarter with the air-cooled turbine impeller on the tapered neck
The use of a twelve-volt dynastarter allows you to remove the six-volt electrical equipment and ensure trouble-free charging of the batteries. When starting a two-cylinder engine through a relay, the dynamo is automatically included in parallel with the starter, which significantly increases the torque on the shaft, after starting the engine, it automatically switches and performs its functions.

 The dynamo engagement window is closed by a plug and a duck-shaped pipe is sealed in it to divert flammable vapors from the unit to the intake air duct, where a straight pipe cuts into the elbow. They are installed with such a slope so that when they are connected with a polyethylene tube, the settling oil can drain back into the crankcase.

 After removing two carburetors on the cylinders, their elbows, the air intake manifold, and the air filter cut off its nests, an arc-shaped collector (made of stainless steel pipe with a diameter of 38 mm) is connected to the gearbox, connecting the suction or intake cavities of the cylinders and at the same distance from the cylinders On a vertically arranged flange, one automobile-type carburetor is installed with an air duct and an automobile air filter.

 The gas cable coming from the steering wheel of the right handle is linked to the throttle of the carburetor to control the engine. The cable of the left handle from the lever for manual adjustment of the advance angle is linked to the air damper of the carburetor.

 Through holes in the arc-shaped collector are radially drilled through holes on both sides of the carburetor, where, observing the seal, steel nests of heaters, i.e., electrothermal elements, are installed. Heating the fuel mixture increases gasoline savings, makes it easier to start the engine. With good product combustion, the atmosphere is less polluted. Electricity consumption for heating is negligible.

 To install the ignition distributor with a combined cover, which was activated by the oil pump drive, its saddle is cut off on the unit after the dynamo is removed. Then the oil pump drive hatch is unscrewed and the driven helical gear is removed. In the upper end of it, a groove is milled for engagement of the cam clutch of the distributor in accordance with its dimensions. For mounting and mounting the distributor housing, the configuration of the hatch is partially changed. Its external thread with a lock nut does not change, and the inner part protrudes significantly upward and is bored inside in accordance with the size (sliding fit) of the housing.

 In accordance with the depth of the mounting or mounting engagement socket, the seat of the distributor housing and the cam clutch shaft are shortened by several millimeters. On top of the block near the engagement slot, a hole is drilled and an M8 thread is cut for attaching the octane corrector. The gear ratio is underestimated. For four turns of the crankshaft, the breaker roller makes one revolution. The distributor is designed for a four-cylinder engine, and is used on a two-cylinder. This disadvantage is compensated by two wires on the cylinder (through one). A distributor with a combined cover looks more compact. Inside it in the hardened epoxy resin there are four electrodes, through one shorted by jumpers. With such a device, spark-distribution over the cylinders is provided normally. Given that the speed of the electric distributor has decreased by half, it is necessary to loosen the load springs of the centrifugal ignition timing controller.

 Transferring a gas tank to the trunk of a motorcycle stroller allows you to simplify its geometric shape, increase capacity. Fuel is supplied by an electric pump mounted on the motorcycle frame.

 Using a threaded fastening of the gas tank in front of the steering wheel, a dashboard is attached to the frame: fuel gauge, ammeter, ignition switch with engine start, switch on the collector heater, warning lights, cornering relay.

 A hood is installed next to the shield on the frame, which covers the engine from above and from the sides; pocket luggage racks are placed on both sides (for spare parts and tools).

 Due to the fact that heavy motorcycles can be used in a military environment, the gas tank can be covered with armor, the compartment itself is more airtight, and an explosive safety valve is mounted in its bottom. With such protection, even with a gas tank explosion, the crew will not suffer, since the fire shock wave will be directed to the ground, and when moving the fire strip will be left behind.

 The use of the invention will eliminate the fundamental disadvantages of manufactured heavy class motorcycles, increase durability, reliability, efficiency, maneuverability in difficult climatic and difficult road conditions, improve fire protection and access to the engine.

 The upgraded engine with forced cooling and starter starting can be used in light motor vehicles. In wheelchairs, mini tractors, all kinds of stationary equipment (for example, fire engine pumps, portable power plants, circular saws). Use with remote control is possible.

 In FIG. 1 shows the shape and installation of the gas tank 1 in the trunk of the stroller or in the fuel compartment 2. The gas tank is supported by two metal supports 3, they are made of strip steel and are tightly attached to the bottom. To fasten the gas tank on the sides of the stand, steel bands 4 are pivotally fixed, at the ends of which threaded joints for the gas tank coupler (not shown) are sealed.

 For convenience and fire safety, the neck of the gas tank 5 is brought out; a well-known fuel level sensor is installed inside the tank. At the bottom of the gas tank, a fuel cock 6 is installed, equipped with a sump, from which fuel is supplied by a pipe (from soft metal) to the electric gas pump installed on the right of the motorcycle frame below the seat, which, with the ignition on, maintains a certain pressure of supply of fuel to the carburetor.

 Behind the seatback, a fuel compartment is enclosed by a greasy wall 7, as shown by a dashed line. The tightness of the fuel compartment must be reliable on all sides, only in the bottom between the supports a window 8 for the blast valve is cut out, where the grooves for the shutter 9 (for example, cardboard) are fastened outside, it provides free access to the tap and the sump, protects the fuel compartment from pollution and acts as an explosive valve. For example, in case of a gas tank explosion by an explosive wave, the fuel will be thrown into the ground, while the crew will not be affected, and the motorcycle may remain intact without a gas tank. In addition, if necessary, the proposed design allows you to protect the gas tank with an armored cap.

 In FIG. 2 shows the front of a heavy-duty motorcycle, where the installation and shape of the control panel and engine hood are visible after removing the gas tank.

 The control panel has the shape of a truncated triangle. A semicircle is cut out in its upper part so that it lays with its side walls on the headlight brackets, but does not obscure the speedometer. Installing the shield between the headlight and the steering wheel 10 is compact and convenient, it is mounted on two bolts of the steering wheel mounting brackets. On the dashboard panel there is a device 11 for reading the fuel level in the tank, an ignition switch 12 with contacts of the starter start relay, an ammeter 13, a toggle switch 14 for heating the fuel mixture, a toggle switch 15, for example, disconnecting the "mass", signal lamps 16.

 Below the steering wheel 10, a hood 17 is located, cutouts are made on its inclined plane, where pocket luggage racks 18 for tools and spare parts are installed. Dotted lines mark the frame of the motorcycle; The main bonnet mount is the center tube of the frame. In order to avoid noise and achieve bonding density, the central pipe is covered, for example, with a three-millimeter layer of rubber, the bonnet fits tightly on it, as if hanging above it. Using the threaded fastening of the gas tank 1 and the support strip 19 allows you to securely fasten the hood, its upper part can serve as a light trunk.

Due to the fact that the trunk of the stroller has turned into a fuel compartment, it is proposed on the front of the stroller, for example, to weld light brackets, and on the back - in the form of a step with small sides. At the same time, the conditions for luggage placement and transportation are improved,
In FIG. 4 schematically shows the proposed reconstruction of the heavy class engine
In order to provide the engine with forced air cooling, its starter starting from rechargeable batteries and their reliable charging, with the transition to twelve-volt electrical equipment, a dynastarter is used (for example, from the Muravei scooter), and since the dynastarter is designed for a left-rotation single-cylinder two-stroke engine, soldering of ends, shunts with an anchor, transfer it to the right rotation. On the motorcycle engine, the ignition interrupter-distributor is completely removed along with the convex valve cover and breather mechanism. The cam roller of the interrupter, the breather rotor and partly the gear itself are cut off on the camshaft so that the gas distribution box can be closed with a flat cover 20 with the base 21 of the turbine 22 fastened to it. The turbine 22 is completely redone for the right rotation and with the aim of increasing the productivity with the addition of a guide vane grill to it 23. To install the dynastarter, which serves as the hub 24 of the turbine, the front neck of the crankshaft is extended and its cone 25 exits through the stuffing box 26. Above the air turbine, a voltage regulator relay is mounted on a flat cover.

 Removing the dynamo and cutting off its support socket on the engine block allows the installation of a more advanced automobile-type ignition chopper-distributor 27, acting from the drive 28 of the oil pump, equipped with two devices for adjusting the ignition timing.

Claims (8)

 1. A heavy class motorcycle with a sidecar, comprising a boxer engine mounted on the frame with cooling from the oncoming air flow and a fuel supply and start-up system, which includes adjustment of the ignition timing, a gas tank with separate power to the engine cylinders, carburetors, and a steering wheel with a headlight, characterized the fact that the fuel supply and start-up system is equipped with an electric gas pump for supplying fuel from a gas tank stroller installed in the sealed baggage compartment, located opposite the bottom cut out about the compartment of the window closed by an easily deformable cardboard shutter, an unstarter with an air turbine impeller, the rotor of which is mounted on an elongated crankshaft neck, electrothermal elements for converting the atomized combustible mixture into a gaseous state, installed on both sides common to two engine cylinders carburetor on an arched feed collector.  2. The motorcycle under item 1, characterized in that to increase the safety of operation in particularly difficult conditions, the gas tank is closed by an armored cap.  3. The motorcycle according to claim 1, characterized in that the gasoline pump is mounted on the motorcycle frame from the side of the stroller.  4. The motorcycle according to claim 1, characterized in that it is equipped with a control panel and devices located between the headlight and the steering wheel on the brackets and tie bolts, on which the ignition switch and starter start switch, fuel level indicators, fuel mixture heating switches and control are mounted lamps.  5. The motorcycle according to claim 1, characterized in that an easily removable hood with pocket luggage racks on the sides and a luggage carrier on top is installed on the frame in front of the driver's seat.  6. The motorcycle according to claim 1, characterized in that on the base or flat cover of the gas distribution box there is a turbine housing with guide covers for blowing two engine cylinders, a base with stuffing box seal, mounting dowels, brush holders and a dynstart voltage-relay relay, and on the block engine in the designed engagement socket from the drive gear of the oil pump, an ignition chopper is installed, connected to the carburetor with a vacuum tube.  7. The motorcycle according to claim 1, characterized in that the inlet cavities of the engine cylinders are connected by an arc-shaped collector at equal distances from which the carburetor is mounted.  8. The motorcycle according to claim 1, characterized in that the air filter is mounted on the frame between the engine and the rear wheel, and the paired batteries are mounted on the frame of the stroller.

Images