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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