FORM 2
THE PATENT ACT 1970
(39 OF 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10 and rule 13)
Title of the Invention : High Intigrity Radiator
Name of the Applicant : Enginemates Heat Transfer Pvt. Ltd.
Address of the Applicant : 416, Marathon Max,
L.B.S. Marg,
Mulund (W), Mumbai 400080, India.

Preamble of the Invention: The following details of specifications describes the invention and manner in which it is to be performed.
Technical field of invention: This invention relates to High Integrity
Radiator suitable for heavy duty application having engine power rating from 600 kw to 2500 kw onward.
Background of the Invention: The present industrial engine cooling system (Radiator) is generally made of Copper and brass with soldered joints. In this the tubes are made of brass and the fins are of copper. The tube to tank and tube to fins contacts are with soldered joint.
There is also aluminium radiator in plate and bar or tube/ fins construction which are generally used for low end application and not for heavy duty use.
Our new design "HIGH INTERGRITY RADIATOR" has steel tubes with aluminium embedded fins and tube to tube sheet (Header)/tank contact is done through welding.
Comparison between existing Product and new Invention:
The Copper/Brass Radiator with soldered joints have major drawbacks.
1. The soldered joints are generally weak and can cause leakages.
-2. Because of high reliance on non ferrous material, the cost is very high.
3. Use of solder (Tin & lead) is not environment friendly.
Our new designed High Integrity Radiator effectively over comes the above drawbacks as this design has steel tubes and aluminium fins, with welded joints.

EXISTING Design Our Design
Multiple Core/Splited Single Core
Fin Copper Aluminium
Tube Brass Carbon Steel
Header Plate Brass Carbon Steel
Tanks Carbon Steel Carbon Steel
Tube Type & Shape Lock seam oval/ Rectangular Seamless-Round
No. of Joints More due to multiple core Less due to single core
Structural integrity/strength O.K. Very good
Leakage possibilities Hiqh Very low almost nil
Cost Benefit Yes
Manufacturing Core Limitation for single No Limitation

core
Manufacturing Lead Time Quite High Less
Manufacturing Equipments Need special equipments Comparatively less
Testing Facilities Pneumatic test limitation Pneumatic/Hydro test. No limitation
Reliance on non ferrous metals Very High Low (Limited to Aluminium fins)
Heat Transfer
Capacity As per requirement As per requirement
Anti corrosive application Special herasite coating need to be applied Special aluminium fins are available with high corrosive resistance
Serviceability Good Good
The advantages of the present Embodiment are as follows:-
a) Rigid in construction
b) No extra pipe connections required to join tank to tank for multiple core
c) Very good structural integrity/strength due to seamless tubes and fully welded construction.
d) Very low or almost nil chances of leakages due to higher thickness of material and welded joints.
e) Environment friendly
Object of the Present embodiment:-
Statement of the invention: HIGH INTIGRITY RADIATOR.
The new design "HIGH INTEGRITY RADIATOR" - Effectively overcomes the major drawbacks of Conventional Copper/Brass Radiators i.e. the welded construction of the new invention makes it very rigid and almost leak proof, Besides unlike copper-brass of the old, the new invention uses steel tubes and aluminium fins which is cost effective and is environment friendly.

Detailed description of the invention:
High Integrity radiators - Process details
Taking into account the heat dissipation requirement of the job, a suitable design is made for the High Integrity Radiator and on the basis of which major components like finned tubes, header, tanks and other aggregates are manufactured before the assembly.
Core assembly done by aligning rows of finned tubes with header as per the design, after which RH & LH core brackets are welded to header. After completion of tube to header welding, tanks duly completed with inlet/out pipes, drain, vent sockets etc are welded on to the Header. The assembled radiator is then pneumatically/hydraulically tested to ensure leak proof nature. After drying the radiator is given an initial coat of paint. Finally other aggregates like side frame, stone guard, fan, fan cowl, fan drive arrangement, fan guard etc alongwith other structural are finally assembled before final packing.

Claims:
We claim that our new invention "High Integrity Radiator" because of its welded construction ensures structural integrity and rigidity compared to conventional copper-brass Radiators.
(1) This is leak proof in nature because of the soldered construction. (2 ) Number of joints is a small fraction compared to conventional
radiators (3 ) Joints using solder (Tin and Lead) in the conventional radiators are
eliminated. (4) Need for soldered joints between fins to tubes totally eliminated. (5) Completely Environment friendly