RVCR Specifics


A mechanism of Energy Conversion invloving two bent pistons (sets) ind a toroidal chamber

with a sequential opertion the combines features of positive displacement and rotary mechanisms.

Purport

RVCR is about rotating pistons (bent piston-vanes sliding inside a hollow toroidal chamber). Rotating pistons-vanes have existed for some time, but the novelty of RVCR is in the control over the sequential motion of a pair of rotating pistons-vanes. RVCR for the 1st time allows independent motion of each piston-Vane. That is, when one piston-vane rotates the other one remains stationary. RVCR allows complete control over when piston vanes can rotate independently and when to reconnect back for synchronous rotation of the Piston-vane pair.

Machine structure basics

A mechanism of rotating pistons that combines positive displacement and rotary mechnaisms.

Machines are made of components which are either moving or fixed type. The fixed remain stationary and support the moving parts that perform specific function. This is generic to all machines, be it household machines like fans, washing machines or complicate engines powering ships, planes, and rockets. The genesis of RVCR is the invention by Er. Ajee Kamath, which details a new configuration of ‘Moving elements’ (ME) and ‘Stationary Elements’ (SE) into an assembly that performs the functions of machines.

For nearly 100 years now only 2 types of mechanisms are mostly used in Primemovers and utility machines. The ‘Slider-Crank’ used and rotary mechanism.

When the moving parts are forced, they actuate motion in their connected links. Like in case of flow energy in wind or in water from dams that turn the turbines or electromagnetic in case of motors – they eventually lead to rotation of power generators or wheels. For nearly 100 years now only 2 types of mechanisms are mostly used in Primemovers and utility machines. The ‘Slider-Crank’ used and rotary mechanism. RVCR mechanisms simplifies conversion of energy within fluids into mechanical work (and Vice Versa) whilst enhancing efficiency and miniaturization. The genesis of RVCR is the invention by Er. Ajee Kamath, which details a new configuration of components of novel geometry, into an assembly of ‘Moving elements’ (ME) and ‘Stationary Elements’ (SE). Improving efficacy of converting fluid forces to torque, is key to RVCR mechanism.

RVCR is a superior alternative to the century old conventional ‘Slider Crank' and 'Rotary mechanisms’. It is a new addition in mechanisms that simplifies conversion of energy within fluids into mechanical work (and Vice Versa) that enhances efficiency and miniaturization.

Understanding RVCR

A mechanism of rotating pistons that combines positive displacement and rotary mechnaisms. Same pics at the bottom



RVCR can be better understood with references to convention mechanism.

Beginning with conventional slider crank mechanism. It comprises of cylindrical piston sliding inside a Barrel (same as in a syringe used for injections to patients). While one side of the piston draws fluid, the other side is used pull and push it. The needle is fitted on top of syringe, and the fluid is sucked in and pushed out through it. In machines the barrel to is fitted with a covering called head that has valves for allowing the fluid and out of the barrel.

RVCR is about bending the barrel, into a toroid. The pistons are bent and a pair of bent pistons are placed within the toroidal space. When one bent piston slides the other one stays rigidly stationary.

The moving bent piston (referred as piston-vane) now has one side drawing fluid (the side moving away for the stationary vane-piston) while the other side is pushing fluid is against the stationary one. The stationary piston acts as the head. The vane-piston fits closely inside the toroid, and sealing arrangements to ensure the fluids on either side of the vane-piston do not leak past to the other side.







Mechanism Comparison on a single shaft

RVCR Design

Configuration & Assembly

The bent piston-vane fits rigidly at one end of a hollow sleeve (see figure). This fitting is called ‘Vane-sleeve’ set (VS). Two VS are placed facing each other, (angularly displaced) and mounted on a central shaft and cased inside a hollow toroidal liner.

Twisting the sleeve part extruding outward along shaft axis, turns the ‘Piston-vanes’ inside the torus. Each VS can individually couple and decouple with the shaft. the bottom pic shows manufactured subassembly of VS on Shaft.

The two Piston-vanes are cased inside a hollow toroidal liner. Lile a car wheel tyer fits over its rim. The casing is made in two halves – the upper and the lower half

RVCR system uniqueness

The ability to dynamically re-configure links during operation. rotating links switch from being moving to being stationary

Kinematic Mechanism constitutes of a chain of links which are connected each other. Two connected links are called a pairs. One of the links of the chain is kept 'Grounded' and stationary while others are 'Moving Links'. In conventional machanisms the grounded link is kept dedicatedly stationary all times.

RVCR mechanism allows dynamic reorienting of a part of Rotating links. This is achieved by decoupling a section of a moving link and grounding for a predefined time and then it is reverted to be moving link by re-coupling it. The uniqueness of RVCR lay in this intermittent use of a part of the stationary link as moving link.
RVCR elimenates the need for dedicated grounded link, rather the configuration of links changes dynamically during operation. This is a new dimension in Machine Methodology.

RVCR animations

RVCR enables sequential cyclic rotary motion of piston vanes


The two Vane rotation sequence inside toroid shown with transparent chamber.


The animation depicts Sleeve and Piston vane mounting on the central shaft, that enables two separate bent pistons to chase each other.


The animation shows laymens depiction of increase and decrease of volume, and the gas process in one complete rotation of an RVCR piston Vane. a mechanism would not work.

RVCR attributes

The ability to dynamically re-configure links during operation. rotating links switch from being moving to being stationary

RVCR is a simplified ‘Rotary positive displacement mechanism’ where sequential operations of the piston vanes very similar to the reciprocating piston It attains all the gas processes enabled by the conventional slider-crank mechanism. It further adds newer gas process, enhances performance and efficacy of energy conversion.

The base list of RVCR attributes are

  • Attains Compression/ Expansion thermodynamic) gas processes.

  • Achieves controlled variation of angular displacement of rotors.

  • Attains analogous Variation in Compression/Expansion Ratios.

  • 1st to attain 'Constant Volume gas process' between strokes.

  • Deploys ‘Opposed Piston’ Principle within One Enclosed Chamber

  • Deploys Double acting Piston’ with equal cross sectional areas.

  • Packages two independent chains of Rotors in one chamber.

Summary

Two Rotors, alternately paired and unpaired from each other during rotation, alternating as ‘Moving’ and ‘Grounded’ Link to facilitate Transmission of Forces by each Rotor Independently.