High output and efficiency internal combustion engine
OwnerVitali Bychkovskiinventor
Life of this patent
Estimating the term…
Abstract
A four-stroke internal combustion engine is equipped with variable valve timing, divided exhaust and a supercharger. The engine is optimized for a low power operation, while charging the cylinder with additional air and dynamically switching the engine into a two-stroke cycle mode satisfies high peak power demand.
Claims20
An internal combustion engine, comprising:
- a cylinder block defining at least one cylinder;
- a piston reciprocally movable within said cylinder;
- a cylinder head which together with said piston and said cylinder defines a combustion chamber;
- an intake valve into each cylinder enabling entrance of air into said cylinder;
- an exhaust valve from each cylinder enabling exhaust removal from said cylinder;
- a valve timing means capable of adjusting valve operation to support a dynamic switch from a four-stroke cycle to a two-stroke cycle at high load, and from a two-stroke cycle to a four-stroke cycle at partial load and idle;
- an air compression means capable of pressurizing an intake air to a pressure not necessarily greater than is sufficient to insure its flow into the cylinder after said switch from a four-stroke operation to a two-stroke cycle, where it may be recompressed by the piston before ignition and beginning of the power stroke.
A method of an exhaust turbine sizing for a supercharged IC engine where special emphasis is placed upon maximization of power and reduction of boost threshold and turbo lag, while increased back pressure is relieved by means of divided exhaust.
A method of valve timing in relation to power demand, that provides a four-stroke cycle engine operation at partial load and idle, and supports alteration of valve action to support a dynamic switch from a four-stroke cycle to a two-stroke cycle at high load. At low load a number of cylinders may be shut-off.
An internal combustion engine, comprising:
- a cylinder block defining at least one cylinder;
- a piston reciprocally movable within said cylinder;
- a cylinder head which together with said piston and said cylinder defines a combustion chamber;
- an intake valve into each cylinder enabling entrance of air into said cylinder;
- an exhaust valve from each cylinder enabling exhaust removal from said cylinder;
- at least one additional exhaust valve is provided, such that divided exhaust flow system can be realized;
- an air compression means;
- a valve timing means capable of adjusting valve operation to support early 1st exhaust manifold opening to provide more exhaust gas energy to the turbine.
A high efficiency low emissions vehicle, comprising:
- a vehicle body;
- two IC engines connected to said body and capable of moving said vehicle independently from one another at efficiency greater than 30%;
- a supercharging means is provided to increase engine's peak power output;
- a means for recapturing, accumulating and expending said vehicle's kinetic energy (e.g. electric motor/generator);
Dependencies are inferred from the claim text.