The New Automotive Camless Engine
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Transcript of The New Automotive Camless Engine
This engine doesn’t have the camshaft to lift the exhaust valve.
This engine doesn’t have the camshaft to lift the exhaust valve.
Exhaust Valve
A Camless engine uses
A Camless engine uses
To open Poppet Valves
1
• This phase starts when the tip of the rotor passes the intake port.
• As the rotor moves the volume of the chamber expands with the mixture of fuel & air
2
• As the rotor moves continuously the air & fuel mixture gets compressed.
3
• Most rotary engines have two spark plugs. When the plugs ignite , create pressure to move the rotor.
• This cycle continues until the peak of the rotor passes exhaust port
4
• Once the peak of the rotor passes the exhaust port, the high pressure combustion gasses are free to flow out of the exhaust .
• The same cycle continues from intake to exhaust again & again.
5
This actuating system can be developed in 2 groups
Valve
Crankshaft
The camless valve timing electronically operated by Microcontroller that
controls electro-mechanical rotary solenoid actuators
The camless valve timing electronically operated by Microcontroller that
controls electro-mechanical rotary solenoid actuators
Electro-mechanical rotary solenoid actuators
Solenoids connected to the exhaust valves relieving the
engine from load
Depending upon the load &speed microcontroller process the information and use the pulse width modulation to actuate the solenoid valves
Advantages of electromechanical Valve
1 The flow of air through engine’s valve directly controlled .
2 Increases the engine performance.
3 Improves the fuel economy of engine .
Used in a source of pressurized hydraulic fluid and hydraulic actuator
coupled to the poppet valve.
Used in a source of pressurized hydraulic fluid and hydraulic actuator
coupled to the poppet valve.
The flow of pressurized hydraulic fluid is made through the motion
of first & second position
The flow of pressurized hydraulic fluid is controlled by an electrically
operated hydraulic valve
Hydraulic Valve
4 main sensors used in camless engine are
• Engine load sensor• Exhaust gas sensor• Valve position sensor• Engine speed sensor
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