Engine SWSE - description

Google translator translation

A preliminary point I will use an a certain comparison that will allow understand and logically illustrate a key

principle working of the engines SWSE which this principle is the use of spark-ignition engine with a high

compression ratio adjustment mass inlet fresh charge.

Please imagine two of the same naturally aspirated spark ignition engines, which are identical with one exception

only, namely the first engine applied is the compression ratio 1:10 in the second the compression ratio 1:15. During

engine operation with a higher compression ratio is applied weight regulation the suction cargo so as to present in

the motor combustion detonation phenomenon no occurred, it is obtained in a way that enforces computer-

controlled throttle to cylinder filling coefficient was not higher than 0.7. If now We shall consider the work of of both

engines the original 1,000 rpm rotational speed. / Min., The first engine of compression ratio 1:10 at maximum load

(full throttle) will be characterized by a coefficient of about 0.9 while filling the engine with a higher compression ratio

1: 15 with a forced reduction of incomplete filling the by opening the throttle will be characterized by filling the

coefficient of 0.7.

It is logical to conclude that the engine with a lower compression ratio because of the suction greater servings of

cargo this case will be characterized by a higher power and a lower percentage of loss in relation to power ratio

relative to the loss of mechanical working of the system. Consider now the work of of both of the same engines at

maximum load at a speed of 3500 rpm. / Min. The first motor with the compression ratio 1:10 at maximum load (full

throttle) will be in this case characterized by a filling the coefficient of 0.7 resulting from the the natural resistances of

the intake ports for the rotational speed, while the motor with a higher compression ratio will also be 1:15

characterized by filling the coefficient of 0.7 because of of the the rotational speed you do not need inlet throttle

(throttle also open maximum of) because the natural resistance intake ducts forcing the original of the maximum the

rotational speed filling the coefficient with a value of 0.7 which is acceptable for this engine (there is no danger of

ignition detonation phenomena). Conclusion - at a speed of 3500 rpm. / Min. Both engines draw in an equal portion

fresh charge, which will feature engines at higher power and higher efficiency of energy? The construction of both

engines the same mass fresh charge identical, the loss of mechanical working arrangement almost identical.

Only with higher engine compression ratio will be be characterized by higher operating pressures and a more

effective combustion as a function crank angle. The difference in power efficiency between both motors, the

reduction of combustion in the engine compression ratio 1:15 by about 20% relative to the engine with a

compression ratio of 1:10.

Following is a comparison engine SWSE the conventional engine (values shown are hypothetical and are based

on estimated calculations based on my interpretation and my knowledge of of automotive issues - at the present

time the engine SWSE is a concept and not fully working prototype).

Sites we compare features	Engine SWSE	Traditional Engine
Engine type	Aspirated four-stroke spark ignition	Aspirated four-stroke spark ignition
The amount and arrangement of cylinders	4 - in the row	4 - in the row
Cylinder bore piston stroke	70 mm / 80 mm	70 mm / 80 mm
Cylinder capacity	1.231 cm³	1.231 cm³
Numbers of valves (channels)	4 per cylinder - 16	4 per cylinder - 16
Type of valve timing	Rotational "vagnetix"	Poppet valves
Type of the ignition	Spark Streaming - Streaming spark plug a new generation of dedicated engine SWSE	of spark
Type of mechanism who turns reciprocating motion to rotary movement	Hipocykloidalny with spherical bearings Perfect balancing mass forces - with spherical a bearing arrangement possible to gain the huge engine life The efficiency of the mechanism about 83%	Crankset - Traditional
Weight of the complete piston and connecting rod	Approximately 350 g Uniform piston-connecting rod + Foot connecting rod - made of titanium (with the possibility of making an aluminum alloy with steel core) + fixing screws and sealing rings the scraper Due to so few mass in the engine SWSE mass forces are more than twice smaller than the engine with a traditional crank mechanism	Approximately 800 g The piston + connecting rod + + Foot connecting rod fixing screws + piston pin snap rings + sealing rings and the scraper
Compression ratio	1 : 17	1 : 10
the filling coefficient of	Max - 0,6	Max - 0,9
Type of fuel	petrol (possible power supply LPG and CNG)	petrol (possible power supply LPG and CNG)
Power max. / Engine rotation speed	320 HP / 16,000 rpm. / Min.	90 HP / 5,500 rpm. / Min.
Energy Efficiency the original maximum power.	40-50%	20-25%
The maximum energy efficiency	70-75%	30-35%
The noise resulting from the hitting of the piston skirt about the cylinder bushing at time transition through the TDC the piston	Not occur hipocykloidalnego the mechanism creates a use of the vertical work without any cranks connecting rod, which piston-connecting rod cloak adheres to only one wall of the cylinder bushing as a result of of force influencing the piston and the friction occurring on connecting rod bearing shell.	A very intense especially during the transition from the compression stroke to power stroke when there are the greatest strength of gaseous at low speeds. Surely you have noticed that the engine screwing in on turnover quieter (laden engine while driving), it is because that increasing mass forces cancel each other with the forces of gaseous through which power strokes of the piston skirt of the cylinder bushing is less
The noise resulting from the of work valve timing	Almost not occurs	It occurs to a large extent and increases with increasing engine speed. This is a result of valve strokes of fungi which increases the valve seats at an increased speed when he camshaft cam separates from the pusher. You can eliminate This effect increasing the strength of the springs, but it entails an increase in the energy required to ensure of work valve timing, and in the case of engine operation at higher speeds significantly shortens the life of the timing.
The noise resulting from the emptying of the cylinder	Small because the pressure of the gases at the end of the working stroke is nearly twice lower in comparison to the pressure of the gases at the end of power stroke with the conventional engine	Large especially at full load
Engine Servicing of	Replace spark streaming what 100.000 km Changing the oil what 40.000 km	Replacing the spark plugs what 40.000 km Timing belt replacement what 70.000 km Changing the oil what 10.000 km
Life of the engine at normal exploitation (drive complies with the provisions without straining the engine)	1.000.000 km	300.000 km
Engine failure rate	slight	significant
Fuel consumption	Extra-urban cycle 2.5 l/100 km Urban cycle 3.5 l/100 km	Extra-urban cycle 4.8 l/100 km Urban cycle 6.5 l/100 km
Approximate weight of the engine	65 kg	80 kg

Greetings

Radosław Pełka