DESC:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION
(See Section 10 and Rule 13)

Title of invention:
A SYSTEM FOR COOLING A HEATED DISK BRAKE ASSEMBLY

Applicant:
BEML Limited
A company Incorporated in India under the Companies Act, 1956
Having address:
BEML Soudha, 23/1, 4th Main,
Sampangirama Nagar, Bengaluru - 560 027,
Karnataka, India

The following specification particularly describes the invention and the manner in which is to be made.
CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
[001] This patent application claims priority from Indian Provisional Application 202041003871 filed on January 29, 2020.
TECHNICAL FIELD
[002] The present invention relates to system for cooling heated disk brake assembly of a vehicle, and, more particularly, relates to system for cooling heated disk brake assembly using conditioned air.
BACKGROUND
[003] A typical disk brake system of a vehicle includes a caliper with one or more pistons that hydraulically forces brake pads toward one another and into contact with a rotor, wherein the rotor spins relative to the caliper when the vehicle is moving. The brake pads having high coefficient of friction, when forced into contact with the spinning rotor during braking, decreases speed of the spinning rotor in proportion with the amount of frictional contact between the brake pad and the rotor, thereby converting kinetic energy of the rotor into heat energy. Due to generation of heat energy, brake pad temperatures can reach the range of melting point of aluminum, which is greater than 6000celsius. Many different techniques or mechanisms are used to remove heat from the disk brake system. An example of one mechanism is to provide an integral vent in the rotor through which ambient air moves, when the rotor is spinning to cool the rotor. In this case, heat is primarily removed from the brake pads through contact with the rotor, and through the brake fluid and the brake caliper via the hydraulic pistons. However, the heat conducted through the caliper piston to the brake fluid can lead to damaged brake caliper seals or warped caliper pistons. Further, the brake pads may get hot enough such that they vaporize on contact with the rotor leading to generation of cushion of gas between the brake pad and the rotor, which prevents the brake pad from contacting the rotor. Such conditions lead to decrease in brake efficiency. Existing brake cooling systems discloses use of lubricant to cool the disk brake system, which may turn into a semisolid mixture with deposition of dust, thereby leading to corrosion, which is not economical.
[004] The present invention is aimed at overcoming one or more limitations of the prior art discussed above.
SUMMARY
[005] Before the present system for cooling heated disk brake assembly is described, it is to be understood that this application is not limited to the system(s), and methodologies described, as there can be multiple possible embodiments which are not expressly illustrated in the present disclosures. It is also to be understood that the terminology used in the description is for the purpose of describing the particular implementations or versions or embodiments only and is not intended to limit the scope of the present application. This summary is provided to introduce aspects related to system for cooling heated disk brake assembly using conditioned air. This summary is not intended to identify essential features of the claimed subject matter nor is it intended for use in determining or limiting the scope of the claimed subject matter.
[006] A system for cooling a heated disk brake assembly is disclosed. The system comprises an air conditioning source configured for supplying conditioned air, a duct configured for supplying conditioned air from said air conditioning source to a nozzle and a disk brake assembly configured for receiving conditioned air from said nozzle for cooling elements of said disk brake assembly to prevent thermal effects on said disk brake assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
[007] The foregoing detailed description of embodiments is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present subject matter, an example of construction of the present subject matter is provided as figures; however, the present subject matter is not limited to the specific process and system disclosed in the document and the figures.
[008] The present subject matter is described in detail with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawings to refer various features of the present subject matter.
[009] Figure 1 illustrates a system for cooling of heated disk brake assembly using conditioned air.
DETAILED DESCRIPTION
[010] Some embodiments of this disclosure, illustrating all its features, may now be discussed in detail. The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items. It must also be noted that as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. Although any assembly and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, the exemplary, assembly and methods are now described. The disclosed embodiments are merely examples of the disclosure, which may be embodied in various forms.
[011] Various modifications to the embodiment may be readily apparent to those skilled in the art, and the generic principles herein may be applied to other embodiments of a system for cooling of heated disk brake assembly using conditioned air. However, one of ordinary skill in the art may readily recognize that the present disclosure for a system for cooling of heated disk brake assembly using conditioned air is not intended to be limited to the embodiments described, but is to be accorded the broadest scope consistent with the principles and features described herein.
[012] Referring now to Figure 1, a system 100 for cooling heated disk brake assembly using conditioned air is illustrated. The system 100 comprises an air conditioning source 102 configured for supplying cold air, a duct 104 configured for supplying cold air from said air conditioning source 102 to a nozzle 106 and a disk brake assembly 108 configured for receiving cold air from said nozzle 106 for cooling elements of disk brake assembly 108 viz. brake disk, brake pad and wheel. The nozzle 106 is configured for blowing conditioned air at an accelerated rate for cooling of disk brake assembly 108 to reduce the thermal effects viz. including thermal fatigue on the disk brake assembly 108. The conditioned air blowed on the disk brake assembly 108 carries away the heat from viz. brake disk, brake pad and wheel resulting in cooling of the heated brake disk and brake pad in an accelerated manner for efficient working. The duct 104 is configured to be routed to plurality of disk brake assemblies 108 for conveying cleaned air from said air conditioning source 102 for cooling of said plurality of disk brake assemblies 108.
[013] Plurality of nozzles 106 are configured to be routed to plurality of disk brake assemblies 108 for blowing cold air from said air conditioning source 102 for cooling of said plurality of disk brake assemblies 108.
[014] In one embodiment, an air conditioning source 102used is an existing air conditioning unit fitted in a vehicle and configured to condition air for use in a vehicle cabin. The conditioned air is carried from said air conditioning source 102 to said nozzle 106 via a duct 104, wherein said duct 104 is configured from a pipe. Due to non-usage of liquid lubricants, formation of sub-paste i.e. mixture of liquid lubricant and deposited dust is avoided. As formation of sub-paste is avoided, corrosion of disk brake assembly is prevented.
[015] Further, the invention can be used, but not limited to, in the following applications.
[016] Exemplary system embodiments discussed above may provide certain advantages. Though not required to practice aspects of the disclosure, these advantages may include those provided by the following features.
[017] Some object of the invention prevents corrosion due to non-usage of liquid lubricants.
[018] Some object of the invention maintains the disk brake assembly clean and dry due to non-usage of liquid lubricant.
[019] Some object of the invention reduces maintenance cost due to lesser wear, tear and replacement of individual parts like break pad, wheel and brake disk.
,CLAIMS:

1) A system (100) for cooling a heated disk brake assembly comprises:
an air conditioning source (102) configured for supplying cold air; and
a duct (104) configured for supplying cold air from said air conditioning source (102) to a nozzle (106) directed on a disk brake assembly (108) for cooling elements of said disk brake assembly (108) to prevent thermal effects on said disk brake assembly (108).

2) The system (100) for cooling a heated disk brake assembly as claimed in claim 1, wherein said air conditioning source (102) is an existing air conditioning unit fitted in a vehicle.

3) The system (100) for cooling a heated disk brake assembly as claimed in claim 1, wherein said duct (104) is configured from a pipe.

4) The system (100) for cooling a heated disk brake assembly as claimed in claim 1, wherein said nozzle (106) is configured for blowing conditioned air at an accelerated rate for faster cooling of disk brake assembly (108).

5) The system (100) for cooling a heated disk brake assembly as claimed in claim 1, wherein said elements of disk brake assembly (108) are a brake disk, a brake pad and a wheel.

6) The system (100) for cooling a heated disk brake assembly as claimed in claim 1, wherein said duct (104) is configured to be routed to plurality of disk brake assemblies (108) for conveying cleaned air from said air conditioning source (102) for cooling of said plurality of disk brake assemblies (108).

7) The system (100) for cooling a heated disk brake assembly as claimed in claim 1, wherein plurality of nozzles (106) are configured to be routed to plurality of disk brake assemblies (108) for blowing cold air from said air conditioning source (102) for cooling of said plurality of disk brake assemblies (108).