Revolutionary Yet Simple
Maximizing Power Extraction for Automotive and Industrial Internal Combustion Engines (ICEs)
How does the Sowda Engine work?
4-Stroke (4-cycle) 2-Dimensional model - click below to view animation
4-Stroke (4-cycle) 2-Dimensional model - click below to view animation
4-Stroke (4-cycle) 2-Dimensional model - click below to view animation
2-Stroke (2-cycle) 2-Dimensional model - click below to view animation
4-Stroke (4-cycle) 2-Dimensional model - click below to view animation
4-Stroke (4-cycle) 2-Dimensional model - click below to view animation
Making Internal Combustion Engines Highly Efficient
How this Invention was conceived.
Using a toy spirograph with a 2 to 1 gear ratio. A long stroke (large diameter) followed by a short stroke. (small diameter). Intersect point is top dead center. "Revolutionary yet Simple"
Sowda E&C does not manufacture engines.
Sowda® provides the patent rights for the Sowda mechanism
Announce coming events
Building a 2-cylinder, 4-cycle, 0.67/1.0 liter engine for testing using only one set of planetaries .
Stay tuned for details.
Looking for grant money to build the 2-cylinder
Hopefully ARPE-e with come through with the funding. Is ARPE-e still only funding EVs?
About My Invention - New 2017 Technology
The Sowda® Engine mechanism provides one of the most fuel-efficient engine in the world. The high efficiency is accomplished by providing a continuously Variable Compression Ratio (cVCR) applicable to both 2-cycle and 4-cycle engines and up to 50% true-Atkinson (TA), applicable only to the 4-cycle engines.
With the continuously Variable Compression Ratio (cVCR), the engine can automatically adjust the top dead center height of the piston so as to maintain a constant pressure ignition (CPI). Emissions are dramatically reduced.
Additionally, the true-Atkinson (TA) 4-cycle engines have two distinct stroke lengths: short intake/compression strokes and long power/exhaust strokes so as to extract maximum power. Typically, the power/exhaust strokes are 40% longer (50% maximum) than the intake/compression strokes. Exhaust temperatures are dramatically reduced as more power is extracted.
The chain outputs were used on the first prototype (shown) instead of gears to reduce the initial costs.
Mission Statement
Make the Sowda® patent use and build licensing rights available to all automotive and industrial manufacturers and hopefully, each manufacturer will improve upon the design to the point where every new internal combustion engine in the world contains the Sowda® mechanism.
About Sowda® E&C
Exploded view of Sowda® Mechanism
Exploded view of Sowda® Mechanism
Exploded view of Sowda® Mechanism
At Sowda Technology, we constructed a single-cylinder 4-stroke working prototype with 40% true-Atkinson (TA) and continuously variable compression ratio from 8:1 to 40:1
Assembled Sowda® Mechanism
Exploded view of Sowda® Mechanism
Exploded view of Sowda® Mechanism
Items 2 and 3 are mirror-image planetaries.
Item 33 is the output shaft.
Item 32 is the variable compression
adjustment shaft.
Side view of Sowda® Mechanism
Exploded view of Sowda® Mechanism
Side view of Sowda® Mechanism
Item 10 is the sun gear
Item 5 is the primary planet gear
Item 6 are the secondary planet gears (2)
Item 9 is the internal ring gear.
About Sowda Technology
Pressure-Volume Curve with TA
Pressure-Volume Curve with TA
Pressure-Volume Curve with TA
The above Pressure-Volume (PV) curve shows how much work or energy is recovered by the additional combustion stroke. True Aktikson (TA) adds area (work) under the curve.
Old 1887 Technology
Pressure-Volume Curve with TA
Pressure-Volume Curve with TA
Sowda mechanism provides True-Atkinson.
Above patent drawing provides True Atkinson
(James Atkinson in 1887)
Follow the new Sowda® engine build: 0.67/1.0-liter 4-cycle
4-Stroke 3-dimensional engine prototype in progress with True-Atkinson and continuously Variable Compression Ratio (cVCR)