PL213207B1 - Device for automatic oiling of drive chain in motorcycles and motor-bicycles - Google Patents

Description

The subject of the invention is a device for automatic lubrication of the drive chain in motorcycles and mopeds.

In modern motorcycles and mopeds, power from the engine is usually transferred to the rear wheel via a drive chain. This chain transmits significant torques and therefore is exposed to intense wear. Therefore, it requires regular, preferably continuous lubrication. A known method of continuous lubrication of the chain is to apply a small amount of oil, preferably one drop every several tens of seconds, to its links while driving. To implement this method, automatic oilers are used, whose task is to precisely dose the oil to the chain links only while driving.

From US Patent No. 5,595,262, a device for the automatic oiling of motorbike drive chains is known, consisting of an oil reservoir with an electric fluid pump, the outlet of which is connected with a flexible conduit to a spraying nozzle. The oil reservoir is attached to the motorcycle's frame and the spray nozzle is positioned near where the drive chain meets the motorcycle's rear wheel drive sprocket. The pump is connected by an electric cable to the motorcycle's battery through a switch located on the motorcycle's handlebar.

The gravity oiler for the drive chain disclosed in US2003 / 0079944 has a cylindrical oil reservoir mounted on the vehicle above the lubrication point and is equipped with a flow valve with a manually adjustable capacity. The discharge line connected to the discharge opening of the oil reservoir consists of individual tapered plastic parts, which allows the oil to be fed at various points in the chain.

The disadvantage of this solution is that the oil can works regardless of the operation of the vehicle engine and must be manually switched on and off.

For many years, a gravity device for automatic oiling of motorcycle drive chains under the trade name "Scottoiler" has been known and used. This device consists of an oil reservoir and a dispensing set, which is a flexible dispensing line ended with a nozzle, connected to the reservoir through a vacuum valve. When the vehicle's engine is running, the vacuum created in the throat opens the vacuum valve and then through the oil line ended with a nozzle, the oil flows dropwise onto the chain links.

The device for the automatic oiling of the drive chain of motorcycles and mopeds according to the invention has an oil reservoir and a flexible oil pipe terminated in a nozzle, attached to the vehicle components above the drive chain.

According to the invention, the device has a solenoid valve, the inlet of which is connected to an oil reservoir, and the outlet is connected to a flexible oil line, the solenoid valve being connected by an electric line to an electronic controller.

The electronic controller has a terminal for connecting the supply voltage, a terminal for connecting to ground and a terminal for controlling the solenoid valve. In a preferred embodiment, the electronic controller has an additional terminal of the output that controls the increase in oil dose.

Preferably, the oil reservoir, the solenoid valve and the electronic controller are also preferably integrated and housed in a single housing.

The device for the automatic oiling of the drive chain in motorcycles and mopeds according to the invention is characterized by a simple, compact structure and very high efficiency. Its universal design allows the use in most known models of motorcycles and mopeds, regardless of the type of engines used in them. The electronically controlled solenoid valve used in the solution according to the invention replaces the mechanical or vacuum valves used in the known chain oilers. Precise setting of the solenoid valve opening time enables precise oil dosing, and also closes the oil main when the user turns off the engine or turns off the ignition.

The additional output of the electronic controller allows to increase the dose of oil fed to the oil line, and thus more intensive lubrication of the chain. This is especially useful when driving in rain or dusty conditions, as well as when driving in low temperatures, when the oil has an increased viscosity. The electric wire of the additional lead is connected to the source of the supply voltage, for example in the ignition switch, through the switch located in the place convenient for the user.

PL 213 207 B1

The subject of the invention is illustrated by the exemplary embodiments in the schematic drawing, Fig. 1 shows a general view of the automatic drive chain oiling device in motorcycles and mopeds in the first embodiment, Fig. 2 - a general view of the automatic drive chain oiling device for motorcycles and mopeds in Fig. 3 is a diagram of the electrical connections of the device in the first embodiment, Fig. 4 is a diagram of the electrical connections of the device in the second embodiment, Fig. 5 is a view of the arrangement of the elements of the device in the first embodiment on a motorcycle, and Fig. 6 - view of the arrangement of the elements of the device on a motorcycle in the second embodiment.

The device for the automatic oiling of the drive chain in motorcycles and mopeds, in its first exemplary embodiment according to the invention, has an oil reservoir 1 attached to a motorcycle frame element 2. The drain port 3 of the oil reservoir 1 is connected at the bottom with the inlet port 4 of the solenoid valve 5, which also is attached to the motorcycle frame 2. A flexible oil line 7 terminated with a nozzle 8 is connected to the outlet port 6 of the solenoid valve 5. The terminals of the solenoid valve 5 are connected with unmarked electric wires to the motorcycle ground and to the control terminal 9 of the electronic controller 10. The electronic controller 10 is located nearby solenoid valve 5 and attached to the motorcycle frame 2.

The electronic controller 10 also has a terminal 11 for connecting the supply voltage, connected to the ignition 12, and a terminal 13 for connecting to ground.

The oil line 7 is attached to the frame member of the motorcycle 2, and the nozzle 8 is disposed just above the drive chain 14 in the vicinity of the drive gear 15 located on the axle of the rear wheel 16 of the motorcycle 2.

The device for automatic oiling of the drive chain in motorcycles and mopeds in the second exemplary embodiment according to the invention has all the elements of the first exemplary embodiment, and moreover, its electronic controller 10 has a terminal 17 of the output controlling the oil boost, connected by an electric wire to the supply voltage terminal in the ignition lock 12 through a switch 18. Oil reservoir 1 and solenoid valve 5 are directly connected to each other and, together with the electronic controller 10, are placed in a common housing 19.

The electronic controller 10 used in the exemplary embodiments is based on a circuit designed to generate single pulses or oscillations. It uses an astable multivibrator with a fill factor regulated by a potentiometer, and because the output of this system has a longer pulse, an inverter in the form of a transistor was used, which is also a key element for the solenoid valve 5. The elements of the system were selected experimentally based on the assumed time intervals and "collecting ”Oil droplets, as well as the possibility of using different oil viscosities for operation in different ambient temperatures while driving.

In the intensive operation mode, activated by the switch 18, the time between the pulses opening the solenoid valve 5 is reduced and the time of opening the solenoid valve is extended at the same time. As a result, the oil droplets "collect" faster and are fed to the chain more frequently. This is important when driving in difficult road conditions.

The oil portion in the reservoir 1 is refilled through the filler opening protected by a cover 20.

The presented exemplary variants of the device for automatic lubrication of the drive chain in motorcycles and mopeds do not exhaust the possibilities of applying further modifications in the solution according to the invention, depending on the needs, in particular with regard to the arrangement of the individual elements of the device on the vehicle, as well as with regard to mutual integration of these elements.

List of designations

- oil reservoir;

- motorcycle;

- drain socket;

- solenoid valve inlet;

- solenoid valve;

- solenoid valve outlet;

- oil pipe;

PL 213 207 B1

- nozzle;

- control output terminal;

- electronic controller;

- clamp for connection to the power supply;

- ignition switch;

- ground connection clamp;

- drive chain;

- drive gear wheel;

- rear wheel;

- terminal of the terminal controlling the increase in oil dose;

- switch;

- housing;

- cover.

Claims (3)

A device for the automatic oiling of the drive chain in motorcycles and mopeds, having an oil reservoir and a flexible oil line ended with a nozzle, located on the vehicle above the drive chain, characterized by having an electrovalve (5) whose inlet is connected to the oil reservoir (1) and the outlet is connected to a flexible oil line (7), the solenoid valve (5) being electrically connected to the control terminal (9) of the electronic controller (10). 2. The device according to claim A device as claimed in claim 1, characterized in that its electronic controller (10) has a terminal (11) for connecting the supply voltage, a terminal (13) for ground connection and a terminal (9) for the solenoid valve (5) control output. 3. The device according to claim 1 A device as claimed in claim 1, characterized in that its electronic controller (10) has a terminal (11) for connecting the supply voltage, a terminal (13) for ground connection, a terminal (9) of the solenoid valve (5) control terminal and a dose increase control terminal (17). connected to the power supply via a switch (18).