FIELD OF INVENTION This invention relates generally to a noise reducing system and more specifically it relates to a rail lubrication system for an automated system to spray a lube at rail to reduce noise produced when wheel making contract with the rail at curved track.

BACKGROUND OF INVENTION

Train lubrication system is the solution to reduce noise due to rail-wheel interface and to disseminate lubricant on the top of rail. Every train manufacturer will include this system as a package to minimize the noise pollution hence to ensure the comfort level of the ridership achieved. For several years the trains running without lubrication system, noise complaint from customer and rail corrugation keep on increasing. In year 2008, the first on-board rail lubrication system was introduced using biodegradable grease. As the result, the track noise, customer complaint and rail corrugation managed to be reduced. Study have been conducted to optimized the solution of noise and rail corrugation, at least 20% of the total fleets need to be equipped with the on-board rail lubrication system.

SUMMARY OF INVENTION

The present invention aim to provide a rail lubrication system which to reduce noise population produce by the rail- wheel interface.

The general purpose of present invention, which will be described subsequently in greater detail, is to provide an automated system to spray the lube on the rail at curved track in order to reduce the noise produce when wheel making contact with the rail especially at the curved track. To attain this, the present invention generally comprises a control box, Global Positioning

System (GPS) with built in curved sensor, a motor compressor along with an air compressor tank mounted on a based plate, a solenoid valve act as a gate and connector between the air compressor tank with the reservoir tank, a custom built reservoir tank attached with a custom built oil valve to distribute the lube through the turbolub distributor and turbolub distributor distribute the lube to 2 nozzles, to spray the lube equally at both side of the rail.

There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter and that will form the subject matter of the claims appended hereto.

In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting.

There are 2 mechanism been applied in this rail lubrication system. Firstly, the lubrication mechanism which is the interaction between the PLC controller with GPS with built in curved sensor, as the curved sensor activated when moving on curved track, the signal will be sent to the PLC controller, which then will give signal to the solenoid valve to allow the air pressure flow through the reservoir tank. Then, the lubricant which in static state will be exerted with the air pressure until it blow out to the tubrolub distributor. The trubolub distributor will split the lubricant into both side of the nozzles. The nozzle will spray the lubricant out of it to the rail.

After that, second mechanism which is the pressure control mechanism. The PLC controller will react directly towards the pressure sensor signal. The pressure sensor detect the low pressure inside the air compressor tank, thus signal being sent to the PLC controller. The PLC controller will activate the solenoid valve, thus the motor compressor will pump in the air into the air compressor tank. Next, the pressure sensor detect the air pressure is at high state in the air compressor thus, a signal being sent to PLC controller thus, motor compressor will stop running and solenoid valve will be closed.

Other objects and advantages of the present invention will become obvious to the reader and it is intended that the advantage and 2 mechanism are within the scope of the present invention. To the accomplishment of the above and related advantage and mechanisms, this invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the facts, however, that the drawings are illustrative only, and that changes may be made in the specific construction illustrated and described within the scope of the appended claims. The system proposed to be installed on-board the train so that the lubricant could be distributed at the specific locations. As for Kelana Jaya Line, the high level noise generated mostly at the sharp curves. Therefore for this application, the system is designed to spread the lubricant once passes by the curved tracks. The system is designed to spray 10-30 Hmm3 ^A 3 vaporized lubricant on the top of rail when the train pass by curved tracks. The lubricant coat is less than 0.001mm thick and 10- 15mm wide. Moreover, the lubricant used is biodegradable type and free toxic. It is expected to improve the friction rate for rail- wheel interface hence prolong the wheel's lifetime. BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be fully understood from the detailed description given herein below and the accompanying drawings as follows: FIGURE 1 illustrates the front dimetric view of overall of the rail lubrication system.

FIGURE 2 illustrates the back dimetric view of overall of the rail lubrication system.

DETAILED DESCRIPTION OF THE PRESENT INVENTION Referring to FIGURE 1 and FIGURE 2, it can be seen that rail lubrication system comprises a pair of big plate and small plate to mount the nozzle at 1 and 8, which is located undercar of the train to spray the lube to the rail. Then, at 2 located the turbolub distributor that works as distributor when the lube coming out of the reservoir tank through the hose that connected to the turbolub distributor 9. The turbolub distributor will flow out the lube from the reservoir tank out at both ends connected with hose. The turbolub is mounted with the turbolub distributor bracket under specific spot at the undercar. The tank reservoir part 3, where is the oil valve located below the tank which is to control the flow of in and out of the oil inside the reservoir. The reservoir is built with a slider placed between the tank base and bracket. The oil valve are connected with the 3 way connector at the end of it, which is at first end are the hose to connect with the turbolub distributor located undercar and second end are the hose that come from solenoid valve 4.

Solenoid valve at 4 are mounted at custom design bracket, it is a 2/3 way connector solenoid valve that connect directly with the filter drier from the tank compressor bracket at 5. The filter drier are mounted at tank compressor bracket which is the phase whereby the air will flow through the filter drier before pass through the solenoid valve. The compressor tank are mounted at the custom design compressor bracket and being hold firm with the tank holder to avoid any slip.

After that, at 5 the MCB, relay, and terminal block are mounted along with the bracket at front of the tank compressor tank. Next, the pressure sensor are placed and facing parallel with the miscellaneous part. The motor compressor are placed besides the compressor tank on top of the based plate at 5. Then, the compressor are connected with hose that extended to the relief valve that are connected with 2 way solenoid valve. The relief valve are mounted with aluminium block at back side of the compressor tank bracket. The solenoid valve are connected directly with the compressor tank with the hose. There are 4 bracket that holding the based plated and mounted under the based plated at 5.

The control box 6 is placed between the curve sensor and base plate and mounted with a pair of bracket. The control box is connected with 16 pin connector, that been connected with the terminal block mounted at the compressor tank bracket at 5. At 7, GPS with built in sensor mounted on the curved sensor bracket. The curved sensor bracket at 7 are mounted on the base of the train as well as the control box at 6.

The curve sensors at (7) are the claim that is at this particular part act as a sensing device which is to detect the movement of the train in order to send data to PLC for entering the curved tracked. The device itself, named as curved sensor. The GPS has been used with the system itself to track and detect the position of the train. Area detection using combination of logic from GPS to detect the position of the train and curve sensor to detect the train while moving in curve track in order to turn off the system at predefined area. The next part is the oil valve at (3), the oil valve is a custom design part which is designed to be fit with the reservoir tank and act efficiently to control the flow of the lube inside the reservoir tank.

The PLC logic gate languages that are embedded inside the PLC unit in the control box (6) are the programmable languages that being used to control the system flow. The system itself are interfacing directly with the hardware such as solenoid valve, pressure sensor, curve sensor and motor compressor. Thus, the predefined PLC logic languages will interact and control the process flow of the overall rail lubrication system.

Safety protection on the motor compressor has been embedded in the PLC program which concurrently provide protection to the system as a whole.

Pressure control has been embedded in the PLC program in which operating pressure level has been set in the program to activate and deactivate the motor compressor.

Although the invention has been described with reference to particular embodiment, it is to be understood that the embodiment is merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiment that other arrangements may be devised without departing from the scope of the present invention as defined by the appended claims.