Động cơ không trục cam camless engine
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University of Technology and Education
Falculty of Vehicle and Energy Engineering
CAMLESS ENGINE
Instructor
:
Dr. Nguyen Van Trang
Prepared by
:
Nguyen Hoang Long
Nguyen Hai Nghiem
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
1
OUTLINE
INTRODUCTION AND FUNCTION OF CAMSHAFT
1
2
3
4
5
Jan-20-2018
CAMLESS ENGINE
ELECTRO-HYDRAULIC-PNEUMATIC ACTUATORS
ANALYZING THE PERFOMANCE OF CAMLESS ENGINE
CONCLUSION
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
2
1. CAMSHAFT
Function
•
•
An intergral part of internal combustion engine
Push valves at proper time and guide their closer
Disdvantages
•
•
•
•
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
Less volumetric effiency
Engine is large in size
Many moving parts
Heavy engine
3. ACTUATORS
4. ANALYZING
3
1. CAMSHAFT
OHV (Over head valve)
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
4
1. CAMSHAFT
SOHC (Single over head camshaft)
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
DOHC (Double over head camshaft)
3. ACTUATORS
4. ANALYZING
5
1. CAMSHAFT
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
6
2. CAMLESS ENGINE
Christian Von Koenigsegg
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
7
2. CAMLESS ENGINE
•
•
Fully variable valve control
Independent control of intake and exhaust valve
Jan-20-2018
1. CAMSHAFT
•
•
•
•
•
Minimize fuel consumtion
Optimize the volumetric of the mixture
Reduce emissions
Cleaner exhaust gas
Maximize the performance
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
8
2. CAMLESS ENGINE
Electro – Magnetic
Valve Actuator
Electro – Hydraulic Valve Actuator
Camless Actuator
Electro – Pneumatic
Valve Actuator
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
9
2. CAMLESS ENGINE
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
10
3. ELECTRO-HYDRAULIC-PNEUMATIC ACTUATORS
Air charging stage
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
11
3. ELECTRO-HYDRAULIC-PNEUMATIC ACTUATORS
Expansion stage
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
12
3. ELECTRO-HYDRAULIC-PNEUMATIC ACTUATORS
Air discharging stage
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
13
4. ANALYZING THE PERFOMANCE OF CAMLESS ENGINE
•
•
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
Extend maximum lift height
Optimize the time and degree of engine valve
3. ACTUATORS
4. ANALYZING
14
4. ANALYZING THE PERFOMANCE OF CAMLESS ENGINE
Step response
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
15
4. ANALYZING THE PERFOMANCE OF CAMLESS ENGINE
Characteristic of power
pe (kW)
Saab 9
Audi A6
ne (rpm)
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
16
4. ANALYZING THE PERFOMANCE OF CAMLESS ENGINE
Characteristic of torque
Me (Nm)
Saab 9
Audi A6
ne (rpm)
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
17
4. ANALYZING THE PERFOMANCE OF CAMLESS ENGINE
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
18
5. CONCLUSION
Increased torque
High cost
DISADVANTAGES
ADVANTAGES
Higher efficiency
Lower fuel consumption
Improved idle
Clean emission
Noise
Engine architecture
Operating conditions
Smaller engine
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
19
5. CONCLUSION
Quoros car at Beijing Motor Show in April, 2016
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
20
THANKS FOR LISTENING!
Jan-20-2018
1. CAMSHAFT
2. FREEVALVE ENGINE
3. ACTUATORS
4. ANALYZING
21
