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RVCR -The Next Evolutionary Leap in Prime-Mover Technology

Getting you future ready with RVCR Products


The RVCR Hydro Kinematic Prime-Mover Project is based on the invention titled ‘Fluid Driven Prime-Mover’ and which covers both the hydro cum wind Motors inventions. The Project to develop its technology was 1st conceived as a joint endeavor with the university of Maryland, and through funding from INDO US Science and Technology Fund. The network was developed with an American Manufacturing as a Partner however the difficulties form various fronts has held the project. GYATK is awaiting to find suitable funding partners to initiate this project kickoff.

The RVCR Hydro Motor has system configuration has two variant wherein the 1st one is for tapping energy from flowing water as in rivers, canals tidal water and ocean currents and the other for wave energy.

Click to enlarge the diagram

RVCR Synopsis

An entirely new Principal in Prime-Mover Drive Mechanism that that enable multi-fold increase in energy capture efficiency compared to modern wind turbines. The RVCR principal simplifies the mechanics of Prime-Mover to reduce the Capital Cost drastically and the engineering involved reduces operations cost.

The Conventional Hydro Kinematic system use turbines to extract drive power from flow energy in canals, rivers etc.

RVCR HKPG is a new method is a rotary positive displacement mechanism that uses pressure differential created from flow energy of water as a drive force.

Unique capabilities

RVCR Hydro Power Generators (HPG)

Departure from Convention

  • On shore Installation of Power Unit.
  • No open water rotating blades.
  • No hazards to natural Hydrology
  • No Gyroscopic force related equipment.

Claiming Climate Energy

  • No lock-down during storm force wind.
  • RPM control by water flow Bypass.
  • Torque control by Vane displacement.
  • No yaw Gear and syncs gearbox.

The Value Proposition

  • RVCR HKPG reduces Levelized cost of Power and revolutionizes the Hydro Power Prime-Movers for claiming a much larger share of Power Production and Energy Market.
  • RVCR HKPG design enables ‘shore or dry installation’ of prime-Mover and generation units. The submerged units are provisioned with a Buoyancy ballast for retrieving units for maintenance and operations. This makes maintenance cost effective and lowers long term operations cost.
  • RVCR Hydro motors are highly compact and easy to handle so, with lower manufacturing cost leading to lower capital investment.

RVCR HK Mechanism Principle

Hydro-Kinematic Power Generator (HKPG) is a Positive Displacement Rotary Mechanism which utilizes pressure differential created by the water current made to flow through a convergent divergent nozzle. A fluid flow induced by pressure differential between two different points is routed through the flow channels of RVCR-HK, where in it works against a rotating vane inside an enclosed chamber by pushing it and creating torque on a shaft to generate continuous output torque.

The Description

RVCR HK mechanism-based Power Generators motors are better, efficient machines compared to conventional 3 blade (or More blade) turbines. The Conventional turbines are driven by lift, achieved by Hydrofoil profile of turbine blades. The axial flow turbines are rotary machines converting the Kinetic Energy water current into Power. RVCR is a rotary positive displacement mechanism that uses pressure differential created by differing fluid flow conditions.

Conventional Turbines

Conventional turbines are placed in the flow path of the fluid current. The structure of these turbines is quite bulky. It is always difficult to transport components (like blades) of these turbines to the specified sites and requires special vessels. During the operation, turbine should orient itself against the direction of water flow. Initial cost of these turbines is quite high, consequently increasing the overall cost of the Hydro-kinematic energy. Yawing, furling and stalling demands special drives, this results in complicated structure. Turbines are not positive displacement machines, so the flow efficiency is lower

RVCR fluid Motors

The RVCR Kinematic mechanism comprises two identical vanes (V1 and V2 in the figure) enclosed in toroidal (hollow doughnut shaped) casing and the vane edge geometry is the same as the cross-section of the casing hollow space. The vanes are rigidly connected to the ends of two intermittently rotating rotors facing each other. The vanes are angularly displaced within the chamber and the cycle begins with the vanes are positioned initially adjacent to each other and near inlet and outlet port respectively while maintaining a defined minimal angle between them. The vane V2 (Shown in Figure No.) is held stationary with the action of vane motion control elements while V1 is coupled to the central shaft and rotates. After rotating through a definite angular distance, where in the moving Vane V1 approaches the stationary Vane V2 and it has an inclusive angle same as it had at the initial position with V2 behind it, both vanes are coupled to the central shaft and rotate simultaneously and acquire interchange positions where in the moving vane is at the position where V2 was kept stationary. Now the V1 is stationary and V2 moves and cycle continuous. The vane position inside the chamber is read at space outside of the casing and motion control mechanism controls the intermittent rotary motion or each vane and converts it into continuous motion on output shaft.

Click to enlarge the diagram

The RVCR HK has a Convergent divergent nozzle integrated with it as shown in figure No 1 and is placed in flow path of water current and the water is driven through the nozzle creating a low pressure at the venturi throat. This low pressure is communicated to the back of the vane face plate. Shown in Figure No. The structure is mounted on base through supporting column and the nozzle support columns have a fluid flow blocking plate that influence direction change and hence building up pressure. This high pressure is communicated through inlet ports in the casing to the opposite face of the vane exposed to the low pressure on the other side which drives the vane.

Advantages and benefits

  • High Efficiency positive displacement mechanism.
  • Easy Maintenance: No special machineries required for accessing the RVCR Hydro-Kinematic Power Generator as the buoyancy effect can be utilized by inducing compressed air into the machine.
  • Fully enclosed Structure.
  • Hydrodynamic design.
  • Simplified metallurgy of vanes & mechanism parts encased in protective casing.
  • Multi-segment assembly hence low level of working stresses.
  • Less frictional loss lesser no. of rotating components.
  • Easy transportation and handling compared to conventional water turbines.
  • Lesser No. of components: Ease of manufacturing and assembly.
  • Lesser mating Parts & contacts.
  • Customized sizing advantage.
  • Easy scaling: Easy design for scales-up & scale-down versions.