ROTATING CYLINDER WITH PORTS FOR AN INTERNAL COMBUSTION ENGINE
An invention is provided for a new and novel intake/exhaust device for an internal combustion engine. A rotating cylinder having an intake/exhaust port penetrating the outer surface of the rotating cylinder and meet at an axis of rotation and have a connective relationship which allows fluid to flow easily. The rotating cylinder when used in a 4-stroke engine aligns the intake port with the combustion chamber, and when rotated will align the exhaust port with the combustion chamber each at the correct time. This novel invention overcomes the limitations of current valve trains by only using rotation, and not by using rotation and linear motion to activate valves thereby allowing the engine to attain much greater RPMs.
This new and novel invention relates generally a better intake and exhaust system for an internal combustion engine. This invention discards current convention and uses a rotating cylinder to provide clean intake air and exhaust the combusted fuel/air mixture.
Description of the Prior ArtThe current state of the art in intake and exhaust systems use processes that date back over 100 years. Typically, an internal combustion engine will have a valve train that typically includes the camshaft, valves, valve springs, retainers, rocker arms and shafts. On engines with traditional mounting of the camshaft in the cylinder block, the valve train also includes lifters and pushrods. On more modern engines the cam is located in the cylinder head and operates the intake and exhaust valves. There may be one or two camshafts in the cylinder head actuating the valves. Most stock valvetrain components are only good up to about 5,500 rpm. Beyond that point, upgrades are necessary to handle the higher speeds and loads. Even though the camshaft turns at only half the speed of the crankshaft (one revolution of the cam for every two revolutions of the crank), engine speed reaches a point where the springs cannot pull the valves shut quickly enough to keep the lifters on the cam. Instead of following the lobes back down to the base circle, the lifters begin to kick off their lobes. And the steeper the profile of the lobes, the worse the problem becomes as rpms increase.
When the springs cannot keep up with the cam, the lifters bang back down on the cam and bounce slightly, causing the valves to also bounce as they seat. In addition to increasing wear and the likelihood of fatigue failure, valve bounce also screws up airflow into and out of the combustion chamber and hurts high rpm performance.
If engine speed continues to increase, the point is soon reached where the springs cannot close the valves fast enough before they start to open again. The valves begin to “float” (stay open), which allows compression to blow right past the open valves. The engine begins to misfire, and if the driver does not back off on the throttle, he runs the risk of a valve hitting a piston.
In view of the foregoing, there is a need for an improved intake and exhaust device that eliminates the camshaft, valves, valve springs, retainers, rocker arms and shafts in order to allow the engine to have adequate fresh air intake and the ability to allow the exhaust gases to leave quickly at higher rpm's without the limitations of the current technology.
SUMMARY OF THE INVENTIONIn an exemplary embodiment we show an internal combustion engine that comprises a four-stroke working cylinder, a rotating cylinder mounted in an intake/exhaust manifold that has intake/exhaust ports integral to the rotating cylinder and acts as an intake system for supplying a combustion air charge to the cylinders, and an exhaust system for removing exhaust gas from the four-stroke working cylinder and to the atmosphere. The rotating cylinder at one position has direct communication with the intake, intake port and the cylinder or combustion chamber. When the crankshaft rotates from the intake stroke through the compression stroke, and then the power stroke, the rotating cylinder now is positioned so the intake/exhaust ports are in direct communication with the exhaust, exhaust port, and the cylinder or combustion chamber. The rotating cylinder is driven similarly as current internal combustion engines by use of a chain drive or a belt drive system that generally works in a 2:1 rotational ratio. It should be understood that the absence of restrictive prior art values on the inlet and exhaust ports will also permit greater airflow resulting in increased power.
The above features and advantages, and other features and advantages of the invention are readily apparent from the following detailed description of the invention when taken in connection with the accompanying drawings.
The invention, together with further advantages thereof, may best be understood by reference to the following description taken in conjunction with the accompanying drawings in which:
With respect to
Continuing with
It should be understood that the absence of restrictive prior art values on the inlet and exhaust ports will also permit greater airflow resulting in increased power. Although the foregoing invention has been described in some detail for purposes of clarity of understanding, it will be apparent that certain changes and modifications may be practiced within the scope of the invention. Accordingly, the present embodiments are to be considered as illustrative and not restrictive, and the invention is not to be limited to the details given herein, but may be modified within scope and equivalents of the invention.
Claims
1. An intake and exhaust system for an internal combustion engine comprising:
- a. a rotating cylinder, said rotating cylinder having intake/exhaust ports defined therein, said intake/exhaust ports penetrating normal to an outer surface of said rotating cylinder and meeting at a center or axis of rotation, said intake/exhaust ports being separated by an angle and provide a connective relationship allowing fluid to easily flow from one end of the intake/exhaust port in the rotating cylinder to the other end without restriction;
- b. said rotating cylinder has bearing journals extending along said axis of rotation providing support for said rotating cylinder;
- c. an intake/exhaust manifold comprising an upper and a lower manifold and having bearing surfaces defined therein, a cylindrical cavity is defined within the intake/exhaust manifold located between the bearing surfaces;
- d. said bearing journals of said rotating cylinder are rotateably positioned on said bearing surfaces of said intake/exhaust manifold, said rotating cylinder thereby being located in said cylindrical cavity; and
- e. said intake/exhaust manifold having an intake port and exhaust port defined therein, said intake and exhaust port communicating with said cylindrical cavity defined in said intake/exhaust manifold;
2. The intake and exhaust system as defined in claim 1 wherein the angle between said intake/exhaust ports is defined as one hundred and twenty (120°) degrees.
3. The intake and exhaust system as defined in claim 1 wherein said outer surface of said rotating cylinder has at least three slots defined therein, said slots being the full length of said rotating cylinder and each slot having a blade seal slideably positioned therein creating at least three discreet chambers between said outer surface of said rotating cylinder and said cylindrical cavity in said exhaust manifold, said blade seals preventing leakage between each discreet chamber.
4. The intake and exhaust system as defined in claim 1 wherein the intake/exhaust ports in the rotating cylinder communicate with an intake port in said intake/exhaust manifold and a cylinder in an internal combustion engine during an intake stroke, the rotating cylinder is rotated and provides no communication between the intake/exhaust ports and said intake or an exhaust port located in said intake/exhaust manifold and said cylinder during either a compression stroke or a power stroke of the internal combustion engine, said intake/exhaust ports communicate with said exhaust port in said intake/exhaust manifold and said cylinder during an exhaust stroke of the internal combustion engine.
Type: Application
Filed: Jan 20, 2022
Publication Date: Sep 21, 2023
Inventor: Alan Chan (Beaumont, CA)
Application Number: 17/580,018