FIELD OF THE INVENTION

The invention generally relates to an exhaust guard provided for an exhaust system of a motorcycle and more particularly to a protection provision for oxygen sensor provided over said exhaust guard.

BACKGROUND OF THE INVENTION
Generally in motorcycles, oxygen sensor is provided over the exhaust pipe and an oxygen sensor guard is provided over oxygen sensor in order to secure it from road induced debris during running condition of motorcycle.

Further, a muffler guard is also provided on side of exhaust pipe which increases the aesthetic appeal of the motorcycle as well as protects rider from heat radiated from exhaust pipe.

During assembly of the exhaust system, due to space constraints, most suitable locations of oxygen sensor, oxygen sensor guard and exhaust guard overlaps with each other. In that situation either the location of oxygen sensor is to be changed or design of exhaust guard is to be modified to accommodate oxygen sensor.

Present invention provides a exhaust guard which can solve above mentioned issue.

SUMMARY OF THE INVENTION
Main objective of the present invention is to provide an exhaust system for a motorcycle having an exhaust system which has an exhaust guard covering outer side of exhaust pipe. Said exhaust guard has a cavity like extension covering the oxygen sensor like a cover to the oxygen sensor. Upper part of the oxygen sensor is passing through said cavity type extension and lower end of the oxygen sensor is inserted into the flow path of exhaust gas in the exhaust pipe.

Summary provided in the present description presents the concept and important embodiments of the invention and not intended to limit the scope of the invention. Scope of the invention is defined in the claim(s) provided and shall be understood entirely on the basis of claim(s).

BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given herein below and the accompanying drawing(s) that is/are incorporated in and constitute embodiments of the invention, illustrate several aspects of the invention and together with a description of the embodiments serve to explain the principles of the invention and thus, are not limiting the present invention and a brief description of the drawing is as follows:

Figure 1 is showing the claimed exhaust guard with essential embodiments mounted over the motorcycle.

Figure 2 - Figure 5 are showing enabling mounting arrangements of embodiments of the claimed exhaust guard.

Figure 6 is showing essential embodiments of the claimed exhaust guard.

DETAILED DESCRIPTION OF THE INVENTION
The embodiments disclosed below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described for enablement purpose of the invention. The invention may have application to all types of vehicles. The scope of the invention is entirely based upon the claims provided.

Reference is made to Figure 1 showing the motorcycle 100 having a frame 102 supporting different embodiments of said motorcycle 100. Engine 103 is fixed below the frame 102 and output of the engine is connected to the rear wheel 101 through a transmission system. Said motorcycle 100 has a centre stand 110 configured to support motorcycle 100 in still condition. Engine 103 has an exhaust port which is connected to an exhaust pipe 105 through exhaust joint 104. Said exhaust pipe 105 has a rear expansion chamber termed as muffler 109 that is also the exhaust outlet for the exhaust gas coming from the engine 103. An exhaust guard 106 is covering the outer or exposed side of the exhaust pipe 105. Mentioned exhaust guard 106 has an extension 107 which is covering the mounting slot 108 of oxygen sensor 111.

Further, referring to Figure 2 to Figure 6, exhaust guard 106 is fixed on the outer/ side of the exhaust pipe 106 for preventing flow of heat from exhaust pipe 106 towards the rider's foot. As shown in Figure 2 said exhaust guard 106 has an inward/extension 107. This extension 107 is covering the oxygen sensor mounting slot 108 with its semi/fully closed cavity like structure. Oxygen sensor 111 is passing through the oxygen sensor mounting area 108a and is inserted into the exhaust tube 105 on its lower end.

Said extension 107 is acting as the guard for oxygen sensor 111 and largely protecting it from road induced debris, water splashes in the running condition of the motorcycle 100. Said exhaust guard 106 is serving multiple purposes of protecting rider from the exhaust gas heat coming out of the exhaust pipe 105 and increasing aesthetic appeal and protecting oxygen sensor 111 from passing pebbles stones dirt etc. during movement of the vehicle.

Described arrangement also ensures that extension 107 largely protects oxygen sensor 111 from short circuits at its electrical joint due to water splashes.

DRAWING NUMBER CLASSIFICATION
100-Motorcycle
101 -Rear Wheel
102 - Motorcycle Frame 103-Engine
104 - Exhaust Joint
105 - Exhaust Pipe 106-Exhaust Guard
106a - Exhaust Guard Mounting Point 106b - Exhaust Guard Mounting Point
107 - Semi/fully Closed Extension
108 - Oxygen Sensor Slot
108a - Oxygen Sensor Mounting Area
109-Muffler
110-Centre Stand
111 - Oxygen Sensor

WHAT IS CLAIMED IS

1)An exhaust system for a two wheeled vehicle comprising an exhaust pipe connected to an exhaust port of an engine one end and to a muffler on the other end; an oxygen sensor is mounted over the exhaust pipe such that said oxygen sensor is partially inserted inside the exhaust pipe wherein an exhaust guard is covering exposed side of exhaust pipe and wherein said exhaust guard has an extension covering the oxygen sensor such that upper part of the oxygen sensor is passing through said extension.

2) The exhaust system, as claimed in claim 1, wherein the extension is making a semi closed cavity over the oxygen sensor.

3) The exhaust system, as claimed in claim 1, wherein the extension is making a fully closed cavity over the oxygen sensor.

4) The exhaust system, as claimed in claim 1, wherein said extension is an integral part of the exhaust guard.

5) The exhaust system, as claimed in claim 1, wherein said extension is mounted over the exhaust guard by atleast one mounting means.