WO2012038970A2

WO2012038970A2 - Heat discharging assembly

Info

Publication number: WO2012038970A2
Application number: PCT/IN2011/000525
Authority: WO
Inventors: Abhishek Amit Agarwal; Lokesh Bhardwaj; Balaguru Sridhar; Vethanayagam Jayajothi Jonhson
Original assignee: Tvs Motor Company Limited
Priority date: 2010-09-21
Filing date: 2011-08-10
Publication date: 2012-03-29
Also published as: WO2012038970A3

Abstract

Main objective of the present invention is to address the problem of positioning the heat discharging assembly in a two-wheeled vehicle. This invention provides a heat-discharging member positioned over the front fork, more specifically located above the front fender and below the headlamp. Air trapping and deflection of air towards heat discharging member is done by air deflector.

Description

HEAT DISCHARGING ASSEMBLY

BACKGROUND OF THE INVENTION The mounting of heat discharging assembly behind the style parts of the two - wheeled vehicles is disadvantageous as irregular air flow over the heat discharging member leads to insufficient engine cooling and hot air coming out of the heat discharging assembly goes to the air filter and engine surface. Further, because of the designs and other component locations, generally used for the two wheeled vehicles, trapping air in one direction, to maintain the regular flow of air for heat discharging member, becomes difficult and hence the supply of the air to the heat discharging member does not remain constant, which affects the cooling of the engine. The location of heat discharging member in two wheeled vehicles was always a problem for manufacturers because the location of heat discharging member below the frame of the vehicle results in the mud and pebbles contact with the heat discharging assembly which can harm the said assembly and any other location of the heat discharging location to avoid the previous problem can harm the driver of the pillion because of the heat released from the said assembly.

FIELD OF INVENTION

The present invention relates generally to the location of a heat discharging assembly which includes heat discharging member, an air and a rear deflector that helps in effective cooling of the internal combustion engine in a two - wheeled vehicle.

PRIOR ART DISCUSSION

The use of a heat discharging member and the water cooling system for internal combustion engine is already known in the prior art. WO2008074953 entitled "Cooling system for the internal combustion engine of a vehicle" relates to a cooling system for the internal combustion engine which is characterized in that the first water box includes a partition dividing it into two areas to which are respectively connected the inlet pipes and that can communicate via nozzle that can be blocked by mobile means for preventing the fluid from flowing from different areas of the radiator. This invention is used essentially for hybrid vehicles only. JP2008223488 entitled "Cooling system for hybrid vehicle" discloses a cooling system capable of suppressing deterioration of fuel economy and it is provided with a first exhaust heat recovery unit and a first cooling water passage. But this cooling system is also used in hybrid vehicles only. Also the use of air deflector is known in the prior art, for many purposes like coolers, snow- plow machines, trucks and buses, for deflecting air towards the heat discharging member. US4119339 entitled "Vehicle undercarriage air deflector" describes mounting of a rectangular panel to the lower edge of the front bumper of a motor vehicle of the high road clearance variety. Mechanical hand crank means, and power driven means are disclosed for raising and lowering the panel as desired. This invention is essentially for four wheeer applications.

US4262953 entitled "Under mounted air deflector for trucks and trailers" discloses an airfoil or deflector panel for being mounted ahead of the rearmost set of wheels of a vehicle such as a truck or tractor-drawn trailer to direct air flow in a manner which reduces the relatively negative air pressure normally occurring behind a moving vehicle.

US4624497 entitled "Truck air deflector" describes an air deflection apparatus for truck of the cab-over engine type of construction having a dual pair of flanges adapted to be mounted to the front face of the truck with the flanges at an acute projecting angle on each side of the radiator on the front face of the truck so that the flanges provide a tapered surface on the front face to deflect air off at an angle to the side of the truck.

However, in two wheeled vehicles this combination is not feasible as the sufficient space is not available for mounting said assembly near engine because of position of horizontal engine and air filter. Also the mounting of heat discharging assembly behind the style parts of the wheeled vehicles is disadvantageous as irregular air flow over the heat discharging member leads to insufficient engine cooling and hot air coming out of the heat discharging assembly goes to the air filter and engine surface.

SUMMARY OF THE INVENTION

Main objective of the present invention is to address the problem of positioning the heat discharging assembly in a two wheeled vehicle. This invention provides a heat discharging assembly positioned over the front fork, more specifically located above the front fender and below the head lamp.

This invention also includes the specific role of front air deflector which traps the air and deflects it towards the heat discharging member. And also the structure of the air deflector helps to maintain the circulation of the air even in the covered portion of the heat discharging member. This invention further includes a rear deflector which deflects the hot air coming from the heat discharging member, to protect the rider from heat released.

The complete assembly claimed in the present invention solves the problem of the location and proper circulation of the air in heat discharging member, hence makes the vehicle more comfortable for the rider.

Also the claimed invention was intended to avoid mud splashing over the heat discharging assembly due to vehicle movement especially during rains. And also the new location of the said assembly avoids the hot air flow from heat discharging member air outlet to the air filet and engine. Also it is helpful in maintaining the balance in front and rear load as well as it is away from the fuel tank which increases the safety level for the user.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

Figure 1 is showing the front view of the vehicle with heat discharging assembly, focusing on the location of the heat-discharging member in two-wheeled vehicle. Figure 2 is showing the side view of the vehicle with heat discharging assembly, focusing on the location and different parts of the heat discharging assembly.

Figure 3 is showing the heat-discharging member used in the heat discharging assembly.

Figure 4 is showing the of the front air deflector used in the heat discharging assembly.

Figure 5 is showing the different views of the rear air deflector used in the heat discharging assembly.

Figure 6 is showing mounting pattern of rear deflector. DETIALED DESCRIPTION OF PREFERED EMBODIMENTS Referring to Figure 1 the heat discharging member 3 is located above the front fender 5 and below the headlamp 1, attached over the Y-type fork 4 specifically coupled over the lower bracket or the holding brackets 6 for the Y-type fork. Further the heat discharging assembly includes three main portions, as shown in Figure 1, named as front air deflector 8, rear air deflector 9 and the heat discharging member 3. The said heat discharging member is located below the headlamp 1 and above the front fender 5 with the help of holding brackets 2. The front air deflector 8 is located over the heat discharging member 3, in the exposed portion of the vehicle. Further, the rear deflector 9 is located on the back side of the heat discharging member 3, towards the covered portion of the vehicle. Referring to Figure 2 (right hand side view), element A is showing the exact position of the embodiment claimed i.e. the heat discharging assembly, in the two wheeled step through vehicle.

Further Figure 3 is explaining element A of Figure 2, which further explains embodiments and the function of the heat discharging assembly. During motion of the vehicle air flows towards the vehicle and hence air falls on the claimed location for the heat radiator assembly 3. Front air deflector 8 deflects the coming air towards the heat discharging assembly from its upper and lower ends and hence traps the maximum air coming towards it. Lower portion of the front air deflector 8 helps in circulating air in covered portion of the heat discharging assembly, as style parts used in the vehicle obstruct direct air supply in the heat discharging member 3. Further referring to the Figure 2, function of the rear deflector 9 is clear. This part of the assembly deflects the hot air downwards, coming out of the fins of the heat discharging assembly.

Figure 4 is showing the heat discharging member used in the heat discharging assembly. Hot coolant liquid coming from the engine enters into the heat discharging member 3 through inlet pipe 14 and then circulates through it from the tubes 10 and passes out of it through outlet pipe 13. Flowing air enters into the heat discharging assembly from the front end, across the fins 11 and moves out towards the rear deflector 9.

Referring to Figure 5 (left hand side view), front deflector is connected to the heat discharging member 3 with the help of the top mounting pins 21 and bottom mounting pin 23. Also the inclined position of this deflector helps to arrest more air into it and hence regularity of the air supply increases thus the cooling of the system keeps regular.

Further, Figure 6 shows the mounting pattern of the rear deflector, it deflects the hot air coming towards it in vertical downwards direction because of its specific structure on its lower end 29 (not shown in figure).

The complete assembly captures the maximum air with the help of front deflector 8, which further passes through fins 11 of the heat discharging member 3 and cools down the coolant flowing through the tubes 10 of the heat discharging member 3 and the rear deflector 9 deflects the hot air vertically downwards to protect the rider from hot air.

Claims

A heat discharging assembly positioned over the front fork of a two-wheeled vehicle characterized with effective cooling system comprising of:

a. A heat discharging member 3 located above the front fender 5 and below the head lamp 1;

b. An front air deflector 8 located over the heat discharging member 3 in the exposed portion of the vehicle; and

c. A rear deflector 9 located behind the heat discharging member towards the covered portion of the vehicle.

The heat discharging assembly as claimed in claim 1 wherein the heat discharging member is located above the front fork by attaching the heat discharging assembly over the Y-type fork 4 specially coupled over the lower bracket or the holding brackets 6 of the Y-type fork.

The heat discharging assembly characterized with effective cooling system of internal combustion engine in a two- wheeler further comprises of:

a. Means of capturing the maximum air with the help of front deflector 8; b. Means of passing the captured air through the fins of heat discharging member 3;

c. Means of cooling down the coolant flowing through the tubes 10 of the heat discharging member 3; and

d. Means of deflecting the hot air vertically downwards by rear deflector 9 to protect rider.

The heat discharging assembly as claimed in claims 1 -3 wherein it is integrated in a two-wheeled vehicle.

A method of positioning a heat discharging assembly above the front fork in a two-wheeled vehicle which includes a heat discharging member 3, an air deflector 8 and a rear deflector 9, characterized with effective cooling system of internal combustion engine comprising the steps of:

a. Locating the heat discharging member above the front fender 5 and below the head lamp 1 with the help of holding brackets; b. Locating front air deflector 8 over the heat discharging member 3 in the exposed portion of the vehicle; and

c. Locating rear deflector 9 on the back side of the heat discharging member towards the covered portion of the vehicle.

6. The method of positioning a heat discharging assembly as claimed in claim 5 wherein, positioning the heat discharging member above the front fork further comprises the step of attaching the heat discharging assembly over the Y-type fork 4 specially coupled over the lower bracket or the holding brackets 6 of the Y- type fork.

7. The method of positioning a heat discharging assembly as claimed in claim 5 which is characterized with effective cooling of the internal combustion engine, further comprises the steps of:

a. Capturing the maximum air by heat discharging member with the help of front deflector 8;

b. Passing the captured air through fins 11 of the neat discharging member 3; c. Cooling down the coolant flowing through the tubes 10 of the heat discharging member 3; and

d. Deflecting the hot air vertically downwards by rear deflector 9 to protect rider.

8. The method of positioning a heat discharging assembly as claimed in claims 5-7 wherein it is implemented in a two- wheeled vehicle.