Vibrating Slippers

The motor of Bourke was conceived by Russell Bourke in the last years 30, that tried to improve on the motor of cycle of Otto. Despite to finish his reconasoit and constructing several motors of functioning; the bad luck (the beginning of Second World War), the bad health and a sait-il-l'attitude all composed to prevent his motor of never coming to put on the market despite its claimed advantages. Well in the 2000 there is several small groups renting the conception virtues. The motor of Bourke has two opposed cylinders with track them in a mechanism of Scottish yoke. Because the movement of the track is a wave of perfect sinus with the consideration to time against the movement the burns of fuel in a smaller volume, and therefore burns hotter. The motor of Bourke has also a more detached linking with the production tree, preventing additional vibration. The valves of take are replaced by the harbors, saving on the parties.

It is thought that the characteristics of conception that increase his effectiveness, to know the method of detonation of combustion, can cause the transmission problems. The highest temperatures of combustion combined with the time of increased cycle around the first dead point can take to the transmissions of oxide of increased nitrogen. It there had not tests of nitrous oxide verified on the motors running to verify the transmission problem.

The present conception

* The Scottish yokes instead of connecting line them to translate the movement to the rotary movement

o Less (only 3) moving on the part

o the Smoother operation

o the Longer percentage of spent cycle to the first dead and inferior point of dead center for the combustion and the more complete exhaust recovering

* Two blows of strength for every rotation of the track opposed instead of a both of them rotation (4-stroke) has for result almost two times the strength to a speed of given motor

* Increasing adiabatic of cause of gasses cooling the reaction as opposed to one lengthened the reaction of combustion and heating.

* To Lean mixture of combined fuel/air with the reaction of cooling of adiabatic has for result zero hydrocarbons of unburnt in the exhaust

* HAS Seal the under piston to isolate the mixture of fuel/air of the crankcase

o Elimine the need to mix oil with the fuel as with the motors of two blows of norm

o Prevents the blow of ring of piston by to pollute the crankcase oil spreading oil life

Simplified explanation:

The Bourke motor Should be considered a motor of detonation or "explosion" because of the time of extremely quick burn of the mixture of air of fuel.

The piston climbing squeezes the mixture the heating, because of the head of fresh piston and because of the cylinder imprisons the mixture enough is not heated to begin a burn. The piston "closes to the loquet" to the first dead point because of the action of the Scottish yoke. Light the cork fires causing an explosive burn. All fuel is completely burned because of the time of explosive burn. The increase splitting in the causes of pressure yoke Scottish for "to open" the piston. The piston brings down the cylinder, increasing following gasses causes to the piston cooling of walls of piston and cylinder. Since all fuel was burned during "to close to the loquet" of piston that no fuel is burned in this moment, no heat is added, all expansion has for result the cooling. When the piston attains the cylinder bottom that it again "closes to the loquet" until "open" by the explosion in the opposed cylinder. This gives the time for recover gas and the explosive injections of mixture of air of fuel.

The mixture must be rather lean for that the compression heating mixture does not cause it to light before the "to close to the loquet". If this arrives the motor will not run, or will run brutally. The fuel mixture must be in the range "explosive" for the motor to run correctly. Any fuel that is used that is mixed in his range "explosive" will treat this motor giving him thus the capacities of multi-carburant.

The pressure maximum on the piston arrives to right after the relacchement of the piston of the first dead point. It is not spread out over the entire length of the trip of piston as in a conventional motor. For this reason this is an extremely high motor of moment of torsion.

The burn completes fuel while the piston is "closed to the loquet" gives his high effectiveness and its low transmissions to this motor.

The cooling caused by the gasses growing, behind the head of piston and the burning no of fuel while the piston travels, causes the gasses of exhaust of low temperature. This prevents also dieseling during the next cycle of compression, because of the cooling of the head of piston.

The air enters under the head of piston, where it is squeezed (turbocharging). It leaves then of under the piston and is mixed with the fuel, before is above injected piston. This injection arrives at the same time, but to the other side of the harbor of cylinder, that the leaf of gasses of exhaust. Because of the form of the piston that the injected mixture striking the cause of head of inclined piston an action whirling that takes to mix complete fuel/air. This mixture contributes to the complete explosive burn. The inclined head of piston separates efficiently mixes it received scavaging of the gasses of exhaust.

The piston is connected to the yoke Scottish by a "triple the report of slipper". This report absorbs and smooths the force of the explosive burn preventing deformation/break of parties of motor. The report absorbs also lateral forces, preventing from vibrations. This report is the "key" to the motor. Without this report the forces of explosive one "would tear the motor to leaves".

The compression proportion needs to be tailored for the type of burnt fuel. If the compression proportion is high to dispatch the check becomes irregular does to dieseling. Adjust the compression proportion allows burning fuels of low octane and of tops.

The form of piston, with the highest volume around the edges, contribute to complete the explosive burn.