01METAL MODEL
US PATENT#7,500,463
Novel Rotary Internal Combustion Engine
SHUBA
ENGINE
A novel, patented concept of rotary internal combustion engine: the force of combusted gasses directly drives the rotation of the engine’s shaft — no pistons, no transduction mechanism. No valves. Full power stroke every 180º.
0
Valves
No valves or valve mechanism
180°
Power Stroke
Full power stroke every 180º
2
Chambers
Within the rotor, diagonally opposed
SCROLL
01 / PRINCIPLE
A NOVEL ROTARY
ENGINE CONCEPT
Shuba engine represents a novel concept of rotary internal combustion engine (RICE). RICE differs from conventional reciprocating internal combustion engine (also known as Otto engine) in that in RICE the force of combusted gasses directly drives the rotation of the engine’s shaft, instead of doing this via transduction mechanism that converts reciprocating motion of the pistons into rotary motion of the shaft.
The best known and so far the most technically elaborated version of RICE is Wankel engine, which is commercialized by Mazda on its RX series of sports cars. All RICEs consist of two major blocks: the rotating block called rotor and the static block termed stator that houses the rotor. Thus, with respect to its architecture RICE quite resembles electric motor.
Shuba engine is based on the revolutionary, patented concept that consists in placing two combustion chambers within the rotating rotor on its diagonally opposed ends. These combustion chambers contain spark plugs and can be opened or closed from two sides by means of side lids in order to accommodate compressed air-fuel mixture or to release combusted gasses. Timely opening and closing of the side lids during rotor rotation is warranted by their coupling to the annular guiding groves within the stator cover plates. Combustion chambers rotate with the rotor, and the spark plugs are ignited by high voltage timely connected to them using the commutator-brushes mechanism similar to that of the electric motors.
“Placing two combustion chambers within the rotating rotor on its diagonally opposed ends.”
— THE PATENTED CONCEPT, US PATENT 7,500,463
ROTOR
Rotating block with two combustion chambers on its diagonally opposed ends
STATOR
Static block that houses the rotor
SIDE LIDS
Open and close the chambers, coupled to the annular guiding grooves of the stator cover plates
COMMUTATOR
Commutator-brushes mechanism timely connects high voltage to the spark plugs
02 / INNOVATION
WHAT MAKES
IT DIFFERENT
Since initial patent filing in 2006 some points for improvement have emerged. So, the version of Shuba engine presented in this site somewhat differs from the original patented design nevertheless, preserving the principal characteristic feature, namely, the disposition of the combustion chambers within the rotor.
METAL MODEL
03 / ADVANTAGES
OBVIOUS
ADVANTAGES
It is up to the internal combustion engine professionals to give Shuba engine objective technical evaluation. Even better would be making its working model and testing it. However, even without that one can note the following obvious advantages.
01
No Valves
No valves and bulky mechanism for their operation are necessary.
02
Power Stroke Every 180°
Providing full power stroke every 180º.
03
Smooth Single-Unit Rotation
Coinciding in phase of one full, 180º power stroke with 3 other, passive strokes, which ensures smooth rotation of the engine as a single unit with no necessity for assembling several units in series.
04
No Eccentricity, No Vibrations
No eccentricity of any kind like in Wankel engine, not to say about reciprocating one, which eliminates any vibrations.
05
Maximal Torque at Any Angle
Constant application of the force of the combusted gasses to the one-arm lever formed by the biggest radius of the rotor (in the event of splitting one 180º power stroke onto two 90º power sub-strokes) providing for maximal torque independent of the rotation angle (in Wankel engine the force is applied to the two-arm lever, and the resultant torque is determined by arms difference, which in turn depends on rotor’s position).
06
No Adjustments Ever
The timing of engagement of each engine’s part is determined by engine’s intrinsic structure, therefore, no adjustments of any kind will be ever necessary.
04 / TECHNICAL SPECIFICATIONS
ENGINE
PARAMETERS
ENGINE TYPERotary internal combustion engine (RICE)
MAJOR BLOCKSRotor and stator
COMBUSTION CHAMBERS2, within the rotor, diagonally opposed
POWER STROKEFull, every 180º
SUB-STROKES2 × 90º per power stroke
VALVESNone
IGNITIONSpark plugs via commutator-brushes
ECCENTRICITYNone
TIMINGDetermined by intrinsic structure
TORQUEMaximal, independent of rotation angle (with 2 × 90º sub-strokes)
PATENTUS 7,500,463
INITIAL PATENT FILING2006
PATENT
US PATENT
7,500,463
7,500,463
Shuba engine is based on the revolutionary, patented concept that consists in placing two combustion chambers within the rotating rotor on its diagonally opposed ends.
05 / METAL MODEL & VIDEOS
NEW
METAL MODEL
IS BUILT
Finally, not only computer animation, but a real model of Shuba Engine made out of steel is available! This model represents the first key step towards the working prototype. Its major purpose was to optimize overall design, refine the shape of the parts, reduce their number and make sure that all of them move as they are supposed to, as engine is rotating. As a result, the real metal thing appeared a bit different from the computer model presented in this site. But the main principle of operation and majority of components remain the same.
The metal model presented here was made from scratch using very primitive “garage technology”. Precision with which it was made is not sufficient for it to burn fuel and function as a real engine. For that to happen it must turn into working prototype. But without investment and access to modern manufacturing technologies it may take ages. So, be the one who can accelerate this process.
But first, see how Shuba Engine metal model looks like, what parts it consists from and how they move, as engine is rotating.
02METAL MODEL
Part II: Shuba Engine assembling
NEW VIDEO SERIES
ALL VIDEOS →
NEW
NEW
NEW
06 / EXPLORE
SEE IT ALL
FOR YOURSELF
This site aims to provide intuitive, easy to comprehend description of engine’s design and operation. The demonstration does not address any technological aspects or the issues of engine’s cooling and lubricating. It only provides the basics of its architecture and function. So, go on and see it all for yourself ...
EXPLORE BY PARTS01
Rotor →
Rotor exploration terminal
EXPLORE BY PARTS02
Stator →
Stator exploration terminal
EXPLORE BY PARTS03
Whole engine →
Final assembly terminal
ANIMATION04
How engine operates →
See how engine operates
ANIMATION05
How parts move →
Close-up view on rotor's moving parts
ANIMATION06
Fly-around views →
From same distance · from variable distance
MEDIA07
Images →
Gallery of engine parts
MEDIA08
Videos →
All Shuba engine videos
CONTACT09
Feedback →
Send us your feedback
07 / CONTACT
INVESTORS &
MANUFACTURERS
If you are investor or manufacturer and find this engine promising for implementation please contact us, we will gladly consider any reasonable offer. Please provide us with your feedback by filling out the form or sending an e-mail directly to: feedback[at]shubaengine.com
CONTACT
TOWARDS A WORKING PROTOTYPE
Metal model built with “garage technology”
Its precision is not sufficient to burn fuel
A working prototype needs investment
and access to modern manufacturing technologies
