contact us :

The Evolution Of Machine Mechanism


Human-kind has used various tools even before the dawn of civilization which improved chances of our survival. The Initial stone tools graduated to projectiles, spear etc. The use of fire and ability to create fire at will with simple tools, helped securing life from predators.

Similarly, incremental advancement in tools empowered humankind with better means to dominate the less equipped ones. The dependence on ever more complicated tools and the ability to innovate became self-complementing to our life system.

Later these instincts helped human civilizations in efficient utilization of resources on a large scale and propelled us to be the most successful species on earth. These traits lead to the advent of complicated machines like steam engines in mid19th century. Machines today are used for various purposes including transporting material, people and one of the most important machines that shaped the 20th Century are Engines. The use of Engines and other Prime-Movers today is universal and forms the back bone of various sectors of the economy.

The Background

All Machines are based on Kinematic Mechanisms wherein various components and parts known as elements are connected with each other to form a chain of elements. Modern machine mechanisms are complex and are capable of performing various functions like excavating, lifting, pumping fluids etc.

Engines are the most significant of machines and are utilized to run cars, trains & airplanes etc.
There are two types of mechanism used in ‘Fluid Handling Machines’ (FHM), are: - ‘Positive displacement’ and ‘Rotary/Centrifugal’. (Car engines use the 1st type of mechanism, whereas airplane turbojet engines use the 2nd type.)

‘RVCR’ is a new addition in mechanisms which is ‘Rotary Positive Displacement’ and resolves the various limitations of the two mentioned mechanisms. The RVCR mechanism uses an entirely new set of components of novel geometry in a unique arrangement and a sequential rotary motion of ‘vane-pistons’ which results in increase and decrease of volume, used to achieve thermodynamic gas process cycles used in Engines.

How & When

The mechanism invented by Mr. Das Ajee Kamath and his spark point occurred during his academic days in NIT (REC), Durgapur, during the first lecture on I.C. Engines. The question that occurred to Mr. Kamath was, ‘Why does the piston need to oscillate’, why not use two vanes to produce the required compression and expansion of gases, required in Engines?

He visualized the mechanism and further through time devised solutions to various feasibility issues encountered while exploring his novel idea.
He could never find any reason why such a mechanism would not work.

Later, in 2005 the issuance of ‘International Preliminary Examination Report (IPER) by European Patent Office approving the ‘novelty’, ‘inventive step’ and ‘industrial applicability’ of his Idea convinced Mr. Kamath to quit his career in the Merchant Navy to start GYATK, which today is a successful commercial R&D Company.