MAGNETIC REPULSION PISTON ENGINE(MRPE)

Presented by:

VISHAL SATSANGI

CONTENTS1) Introduction

2) Working Principle

3) Operation Cycle

4) Components

5) Speed Control

6) Advantages over Fossil fuel enginesTechnical terms Reference

1. INTRODUCTION

Modified version of the reciprocating engine.

Piston is replaced by permanent magnet.

Works on the principle of magnetism.

Fuel less engine.Combustion is substituted

by a neodymium (NdFeB) repulsive magnetic force.

Fig.1: Basic configuration of MRPE

2. WORKING PRINCIPLEPrinciple of Magnetism

Magnet is a piece of material that has equal number of poles. pole is the point where all the flux lines meet.

Magnets attract when their unlike poles (North-South) are brought near each other.

Repel when their like poles (North-North or South-South) are brought near each other.

Fig.2: Permanent Magnet

Force of attraction or repulsion between two magnets depends on the: -shape

-magnetization-orientation -separation of the magnets.

Fig.3: Force of attraction & repulsion

The mutual force of attraction or repulsion between the two magnets:

Where;

F : Attraction or repulsion force(Newton)

m1, m2 : Magnetic pole strengths(Weber)

r : Distance between two magnets(meter) μ : Permeability(Tesla-meter/ampere)

Magnetic Repulsion of Like Poles(External direct force)(Force of repulsion)F increases exponentially as the spacing reduces.

Fig.4: Magnetic Repulsion of Like Poles

Magnetic Attraction of Like PolesPossible when a ferromagnetic plate is used.

Fig.5: Magnetic attraction of like poles

3. OPERATION CYCLERAT plate operation cycles:

Pulled-out. Pushed-in.

Piston's position: Farthest position of piston from the crankshaft is TDC or RPE. Closest position is BDC or CSE.

Crankshaft moves 360° rotation for every push-pull operation of the RAT plate. First half is repulsion stroke.Second half is attraction stroke.

Pulled-out operation cycle Starts when pistons are at TDC.Crankshaft moves from 0° to 180 °.

Fig.6: Angular movement of crankshaft during the repulsion stroke

Pushed-in operation cycleStarts when Pistons are at BDC.Crankshaft moves from 180° to 360 °.

Fig.7: Angular movement of crankshaft during the attraction stroke

4. COMPONENTSMagnetic piston

High magnetic strength materials: Neodymium-iron-boron (NdFeB) Samarium-cobalt (SmCo)

Covered by a thin layer of non-magnetic material.

CylinderHigh strength, high resistivity and low electrical conductivity

non-magnetic materials Stainless steel Titanium

Can be made by integrating both non-magnetic and non-metallic materials.

Flywheel rodCommon flywheel rod.Helps in synchronizing the

pistons movement.Pistons will be at

equidistance from the RAT plate at all times.

Helps in effectively managing the combined rotational force.

RAT PlateRepulsion-Attraction plate.Assists in attracting and repelling the like poles of the

magnets.Once attracted, very minimum force must be able to

separate the RAT plate from the magnets.Moves back-and-forth in the direction perpendicular to

the pistons movement. High permeability ferromagnetic materials:

IronNickelCobalt.

Rat Plate DriverMeant to insert and remove the RAT plate. Sources for driving:

ElectricalPneumaticSteam powered

Driver types:Directly driven by a linear driverIndirectly driven by a reciprocating driver

TDC/BDC Position DetectorDetects pistons TDC/BDC positions and

generates the TDC/BDC pulses. Required for precise timing and synchronization of the RAT

plate movement.For pulse generation a notch is used.

Operates a pair of switches one at a time when the piston reaches dead centers.

Piston reaches TDC/BDCTDC/BDC switch operates.

Central processor

Converts TDC/BDC pulses into the synchronized RAT plate control pulses.

TDC is detected, Repulsion signal pulls-out the RAT plate.

BDC is detected,Attraction signal pushes in the RAT plate.

Rechargeable batteryUsed to start the engine. Provide uninterrupted power supply to the control electronics

during the operation.Charged by the onboard electric power generation system.

5.Speed controlSpeed of the magnetic pistons is directly proportional to

RAT plate push pull operation speed.Methods:

Vary the frequency. Higher the frequency higher the speed and vice versa.

Introduce skip pulses at a particular frequency. Skip pulses put the RAT plate in idle state for the skip duration. Causes the engine to slow down until the next valid RAT

control pulse.

6. Advantages over fossil fuel engines

Fuel less engine.Easy to design. Less power consumption. No waste production. Less running cost & maintenance free.Environmental friendly, very high efficiency

engine.Can work as an automobile engine, aircraft

engine, locomotive engine, ship engine, etc.

• Technical termsS.No. Technical terms S.No. Technical terms

1 Permanent magnet 10 Cylinder

2 Flux lines 11 Casing

3 Stoppers 12 Flywheel

4 RAT plate 13 Flywheel rod

5 Cylindrical enclosures

14 RAT plate driver

6 Piston 15 TDC/BDC position detector

7 Connecting rod 16 Central processor

8 Crank shaft 17 Power generation system

9 Magnetic heads 18 Rechargeable battery

• ReferenceI. Togare,Radhakrishna Shesha Iyengar “Magnetic piston engine”, US

Patent, US 7,667,356 B2.

www.google.com/patents/US7667356

II. Mc Carthy, “Energy producing apparatus utilizing magnetic pistons”, US Patent, US 7,330,094 http://www.google.co.in/patents/US7330094

III. Takara “Electromagnet piston engine” ,US Patent, US 6,049,146

IV. Vishal Abasaheb Misal1, Umesh Dattatray Hajare2 & Arshad Ashak Atar3 , ISSN : 2319 – 3182, Volume-2, Issue-4, 2013.http://www.irdindia.in/Journal_IJTARME/PDF/Vol2_Iss4/7.pdf

V. Manoj Gattani, International Journal of Advances in Engineering & Technology, May 2012. http://www.e-ijaet.org/media/0001/87I8-IJAET0805863-DESIGN-AND-DEVELOPMENT.pdf