The following table shows a comparison between both the reciprocating engine and Hekal Rotary engine
Reciprocating Engine
Hekal Rotary Engine
1
Conversion efficiency from gases pressure into Torque
25%
100%
2
Thermal efficiency
25% - 40%
60% - 80$
3
Mechanical efficiency
70% - 80%
90% - 98%
4
Engine CC
3 X624 cm3
3X624 cm3
5
Top ded center temperature
900o Kelvin
1500o Kelvin
6
Exhaust temperature
500o Kelvin
300o Kelvin
7
Pressure ratio
1/15
1/30
8
Zicronia ceramic insulating
X
9
Angular distance for power stroke
120 degree
10
Lubricating system
Liquid lubricant
Dry film lubricating friction (solid)
11
Average length of torque arm
6 cm
28 cm
12
Length of the work stoke along 120 degree
24 cm
52 cm
13
Piston Area
51 cm2
12 cm2
14
R.P.M
4000/60000
8000/16000
15
Rotating axis
Bushings and bearing
Ball bearing
16
Vibrational motion
High Vibration
No vibrations like turbine
17
INLET port
With valve
Without valve
18
Exhaust port
19
Cams
With cams
Without cams
20
Springs
With springs
Without springs
21
Type of motion
Reciprocating
Rotory like turbine
22
Valves
With valves
23
Power weight ratio
Heavy
Light
24
H.P Fuel consumption ratio
High
Low
25
Airborne pollution
low
