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Electrical supercharging

Bhushan Padhye
Bhushan Padhye

The document discusses different types of superchargers used in internal combustion engines. It explains that a supercharger is an air compressor that forces more air into the engine's intake manifold, allowing for more fuel to be burned and increasing engine power. Conventional superchargers are belt-driven but can consume up to 20% of engine power. Electrical superchargers address this issue by using a separate electric motor to compress air, providing boost without tapping the engine for power. The document outlines the components and advantages of an electrical supercharger system for a small gasoline engine.

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INTRODUCTION Chemical energy in fuel converted to thermal energy by combustion or oxidation in IC Engines. The greater mass flow-rate provides more oxygen to support combustion. Supercharger is an air compressor used for forced induction of an internal combustion engine.
HISTORY In 1860, brothers Philander and Francis Marion Roots of Connersville, Indiana, patented the design for an air mover, for use in blast furnaces and other industrial applications. The world's first series-produced cars with superchargers were Mercedes 6/25/40 hp and Mercedes 10/40/65 hp. Both models were introduced in 1921 and had Roots superchargers. The world's first functional, actually tested engine supercharger was made by Dugald Clerk, in 1878, for two stroke engine. Gottlieb Daimler received a German patent for supercharging an internal combustion engine in 1885
WHAT IS SUPERCHARGING? A supercharger is an engine-driven air pump that supplies more than the normal amount of air into the intake manifold and boosts engine torque and power. The amount of force an airfuel charge produces when it is ignited is largely a function of the charge density. More Fuel + More Air = More Power cell-type compressor wheel (1), fed on one side by an ambient intake duct (2), and discharging compressed air into the intake manifold (3), he high-pressure exhaust from the exhaust manifold feeds through the duct (4), and is expelled-at lower pressures-into the tailpipe (5).
CONVENTIONAL SUPERCHARGER Power for the unit can come mechanically by a belt, gear, shaft, or chain connected to the engine's crankshaft. When power comes from an exhaust gas turbine a supercharger is known as a turbo-supercharger typically referred to simply as a turbocharger or just turbo.
LIMITATION OF CONVENTIONAL SUPERCHARGERS Consumes as much as 20% of engines total power output. Puts an added strain on engine, to compensate for extra boost and bigger explosion. Detonation is serious problem. By-passing excess of Compressed gas is necessary.
ELECTRICAL SUPERCHARGER It contains a separate electric motor to drive an axial flow fan to pressurize the intake air . Utilizes compressor powered by a 12 volt lightweight motor that can push the electric super- charger fan to an impressive 24,500 rpms in less than one second. Is capable of delivering a 5-30% boost in horsepower .
ADVANTAGES OF ELECTRICAL SUPERCHARGER Electric superchargers are less expensive than belt-driven superchargers. Electric superchargers are decoupled from an engine via an oversized energy storage. Results in different "somewhat raw" boost supplied during low revolution regime of the engine. Produces variably pressurized intake charge as per requirement.
ELECTRIC SUPERCHARGER DIAGRAM
Air filter: Standard as vehicular specification 110CC approx. Hose pipe: Standard as vehicular specification Motor: DC CCW Motor 18,000 RPM make-Mabuchi, Japan. Battery: Standard as vehicular specification 12 V DC 5 Ah Compressor: PVC / HDPE Centrifugal type blower with casing Controls: Standard 5A toggle switch Hose: Netted Wiring: Multi strand insulated copper wires Carburetor COMPONENTS USED
SI ENGINE USED DESCRIPTION Displacement : 109.15 ccm (6.66 cubic inches) Engine type: Single cylinder, four-stroke Power: 8.50 HP (6.2 kW)) @ 700 RPM Fuel system: Carburetor Ignition: C.D.I. Cooling system: Air Gearbox: 4-speed Transmission type, final drive: Chain
A particulate air filter is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. Air filter
Motor
SEALED LEAD ACID BATTERY
The centrifugal air compressor is a dynamic compressor which depends on transfer of energy from a rotating impeller to the air. 100% oil free Prevents oil contamination of system Pulsation free and require no dampers CENTTRIFUGAL COMPRESSOR
Type Name : Miniature Rocker Switch Rating : 5a 120vac Or 28vdc,2a 250vac Size (L,W,H,mm) : 42,15,60 Feature : Available Wide Actuator, Easy To Operating Purpose : Applied To Power Control for Panel in Instrument Equipment Applied Product : Test Instrument Equipment...Etc. CONTROL SWITCH
Solex carburator manufactured by keihin carbs. It is famous for easy to start, good performance and reliability. It consist of various fuel ckt such as starting, idling or low speed operation, normal running, acceleration. CARBURETOR
REFRENCES BOOKS Internal Combustion Engines V. Ganeshan Internal Combustion Engines Fundamental John Heywood Bosch Handbook Websites http:// en.wikipedia.org/wiki/Electric_supercharger http :// gadgetopia.com/post/6620 http:// en.wikipedia.org/wiki/Supercharger http://www.electricsupercharger.com/

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Electrical supercharging

  • 1. INTRODUCTION Chemical energy in fuel converted to thermal energy by combustion or oxidation in IC Engines. The greater mass flow-rate provides more oxygen to support combustion. Supercharger is an air compressor used for forced induction of an internal combustion engine.
  • 2. HISTORY In 1860, brothers Philander and Francis Marion Roots of Connersville, Indiana, patented the design for an air mover, for use in blast furnaces and other industrial applications. The world's first series-produced cars with superchargers were Mercedes 6/25/40 hp and Mercedes 10/40/65 hp. Both models were introduced in 1921 and had Roots superchargers. The world's first functional, actually tested engine supercharger was made by Dugald Clerk, in 1878, for two stroke engine. Gottlieb Daimler received a German patent for supercharging an internal combustion engine in 1885
  • 3. WHAT IS SUPERCHARGING? A supercharger is an engine-driven air pump that supplies more than the normal amount of air into the intake manifold and boosts engine torque and power. The amount of force an airfuel charge produces when it is ignited is largely a function of the charge density. More Fuel + More Air = More Power cell-type compressor wheel (1), fed on one side by an ambient intake duct (2), and discharging compressed air into the intake manifold (3), he high-pressure exhaust from the exhaust manifold feeds through the duct (4), and is expelled-at lower pressures-into the tailpipe (5).
  • 4. CONVENTIONAL SUPERCHARGER Power for the unit can come mechanically by a belt, gear, shaft, or chain connected to the engine's crankshaft. When power comes from an exhaust gas turbine a supercharger is known as a turbo-supercharger typically referred to simply as a turbocharger or just turbo.
  • 5. LIMITATION OF CONVENTIONAL SUPERCHARGERS Consumes as much as 20% of engines total power output. Puts an added strain on engine, to compensate for extra boost and bigger explosion. Detonation is serious problem. By-passing excess of Compressed gas is necessary.
  • 6. ELECTRICAL SUPERCHARGER It contains a separate electric motor to drive an axial flow fan to pressurize the intake air . Utilizes compressor powered by a 12 volt lightweight motor that can push the electric super- charger fan to an impressive 24,500 rpms in less than one second. Is capable of delivering a 5-30% boost in horsepower .
  • 7. ADVANTAGES OF ELECTRICAL SUPERCHARGER Electric superchargers are less expensive than belt-driven superchargers. Electric superchargers are decoupled from an engine via an oversized energy storage. Results in different "somewhat raw" boost supplied during low revolution regime of the engine. Produces variably pressurized intake charge as per requirement.
  • 9. Air filter: Standard as vehicular specification 110CC approx. Hose pipe: Standard as vehicular specification Motor: DC CCW Motor 18,000 RPM make-Mabuchi, Japan. Battery: Standard as vehicular specification 12 V DC 5 Ah Compressor: PVC / HDPE Centrifugal type blower with casing Controls: Standard 5A toggle switch Hose: Netted Wiring: Multi strand insulated copper wires Carburetor COMPONENTS USED
  • 10. SI ENGINE USED DESCRIPTION Displacement : 109.15 ccm (6.66 cubic inches) Engine type: Single cylinder, four-stroke Power: 8.50 HP (6.2 kW)) @ 700 RPM Fuel system: Carburetor Ignition: C.D.I. Cooling system: Air Gearbox: 4-speed Transmission type, final drive: Chain
  • 11. A particulate air filter is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. Air filter
  • 12. Motor
  • 13. SEALED LEAD ACID BATTERY
  • 14. The centrifugal air compressor is a dynamic compressor which depends on transfer of energy from a rotating impeller to the air. 100% oil free Prevents oil contamination of system Pulsation free and require no dampers CENTTRIFUGAL COMPRESSOR
  • 15. Type Name : Miniature Rocker Switch Rating : 5a 120vac Or 28vdc,2a 250vac Size (L,W,H,mm) : 42,15,60 Feature : Available Wide Actuator, Easy To Operating Purpose : Applied To Power Control for Panel in Instrument Equipment Applied Product : Test Instrument Equipment...Etc. CONTROL SWITCH
  • 16. Solex carburator manufactured by keihin carbs. It is famous for easy to start, good performance and reliability. It consist of various fuel ckt such as starting, idling or low speed operation, normal running, acceleration. CARBURETOR
  • 17. REFRENCES BOOKS Internal Combustion Engines V. Ganeshan Internal Combustion Engines Fundamental John Heywood Bosch Handbook Websites http:// en.wikipedia.org/wiki/Electric_supercharger http :// gadgetopia.com/post/6620 http:// en.wikipedia.org/wiki/Supercharger http://www.electricsupercharger.com/

Editor's Notes

  • #2: Introductory notes.
  • #3: Objectives for instruction and expected results and/or skills developed from learning.
  • #4: Relative vocabulary list.
  • #5: Relative vocabulary list.
  • #6: A list of procedures and steps, or a lecture slide with media.
  • #7: Example graph/chart.
  • #8: Example graph/chart.
  • #18: Conclusion to course, lecture, et al.