Thread: radial reed valves intake
12-25-2010, 01:49 AM #1
radial reed valves intake
What is known about these valves?
Where it is possible to purchase them?
12-28-2010, 06:31 PM #2
I don't know how they would help. They look like something that would be used on a gas compressor or something, only very light duty.
Remember, part of the design of the reed valve/cage assembly is to 'stuff' the crankcase to increase crankcase pressure. Looks to me like that design would make the crankcase volume much larger, which would make scavenging much less efficient.
12-30-2010, 09:24 AM #3
Hi that you about this think?.
1. A valve comprising: a valve body positioned across substantially all of the area of an intake manifold; and an adjustable spring loaded conically shaped valve diaphragm mounted in said valve body; said diaphragm seating along substantially its entire circumference against a portion of said valve body when said diaphragm is in its closed position and said diaphragm being unseated along substantially its entire circumference from said portion of said valve body when said diaphragm is in its open position.
2. The valve assembly of claim 1 further including adjusting means connected to said valve body for changing the position of said valve body in an intake manifold.
3. The valve assembly of claim 2 wherein said adjusting means includes a manually movable worm gear.
4. A valve assembly for an internal combustion engine comprising: a mounting plate having an aperture formed therein, a diffuser screen connected to said mounting plate across substantially the entire area of said aperture; a plurality of support braces connected to said mounting plate across said aperture, said support braces forming an intersection at the midpoint of said aperture; an adjustable spring loaded shaft connected to said braces at said intersection, a cylindrical valve body connected to said mounting place at the periphery of said aperture; and a conical valve diaphragm connected to said adjustable spring loaded shaft mounted within said cylindrical valve body; said conical valve diaphragm being movable within said cylindrical valve body between an open position and a closed position, said conical valve diaphragm sealing against a portion of said valve body for substantially the entire circumference of said valve body when said conical valve diaphragm is in said closed position; said conical valve diaphragm forming areas of turbulence across its inner and outer surfaces when in said open position.
5. A valve for an internal combustion engine comprising a valve body having an inlet and an outlet; a conical shaped valve diaphragm mounted within said valve body, said conical shaped valve diaphragm having its circular plane end in proximity to said outlet and its opposite end in proximity to said inlet, said conical shaped valve diaphragm causing turbulence to be generated in a fuel/air mixture passing over the outer surface of said conical shaped valve diaphragm at said inlet and additional turbulence to be generated within said conical shaped valve diaphragm and in proximity to said circular plane at said outlet, said turbulence causing a improved mixing of fuel and air passing to said internal combustion engine.
6. The valve of claim 5 wherein said valve body has an internal lip formed about substantially the entire interior circumference of said valve body for cooperating with a portion of said conical shaped valve diaphragm in proximity to said circular plane to close said valve.
7. The valve assembly of claim 5 further including diffuser means fluidly coupled to said inlet for mixing a fuel/air mixture.
8. The valve assembly of claim 5 further including vortex generator means attached to said conical shaped valve diaphragm in proximity to said circular plane for improving the mixing of a fuel/air mixture.
9. The valve assembly of claim 5 further including worm gear means attached to said valve body for adjusting the position of said valve body in an internal combustion engine.
10. The valve assembly of claim 9 wherein said worm gear means is manually movable.
11. The valve assembly of claim 5 further including adjustable tension spring loaded means for mounting said conical shaped valve diaphragm in said valve body.
12. The valve assembly of claim 11 further including mounting means attached to said valve assembly for mounting said valve assembly within the intake manifold of an internal combustion engine.
13. The valve assembly of claim 5 further in including aperture means formed in said valve body in proximity to said internal lip for conveying a portion of a fuel air mixture to said outlet.
14. The valve assembly of claim 5 further including aperture means formed in said conical shaped valve diaphragm for permitting a portion of a fuel air mixture to be conveyed there through.
15. The valve assembly of claim 9 wherein said worm gear means adjusts the lateral position of said conical shaped valve diaphragm within said valve body.
16. The valve assembly of claim 6 wherein said valve is closed by said conical shaped valve diaphragm contacting said lip over 360° of sealing.
Description:BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a fuel/air regulating device for controlling the incoming fuel/air in piston driven, reciprocating, internal combustion engines.
2. Description of the Related Art
As described in U.S. Pat. No. 5,243,934 and the patents discussed therein, reed valves are used in internal combustion engines to control air and or air/fuel intake. In two-stroke engines, reed valves have improved efficiency of the engine by improving transfer of the air and fuel from the crankcase to the combustion chamber while simultaneously sealing against back flow of the incoming fuel/air charge. Reed valves have also been employed in four stroke engines to control air intake and have improved engine performance.
As disclosed in the aforementioned patents, while reed valves have improved the performance of engines, such valves, themselves, introduce problems of operating life and wear. More specifically, multi-staged reeds have been subjected to greater stress on certain petals undergo material fatigue and breakage.
Prior art solutions to these problems included protective coatings, use of a cage to modify intake passages upstream from the reed, joining reed petals together, use of thicker and different reed valve materials and the use of wider reed valve ports and petals.
The present invention is a structure which eliminates the sources of the present state of the art reed valve design problems by replacing the petal style reed with a spring loaded diaphragm that will both regulate and improve the distribution and atomization of the fuel/air charge to the combustion chamber.
SUMMARY OF THE INVENTION
The present invention provides an intake valve, which is mounted in the intake manifold of internal combustion engines, between the output of the carburetor and the input of the combustion chamber.
A principal object and advantage of the invention is the provision of an intake manifold valve for internal combustion engines which provides a diffuser screen for improved atomization of the fuel/air mixture for a more complete combustion.
Another object and advantage of the invention is the provision of an intake manifold valve, which provides an increased plenum volume when compared prior art designs.
Still another object and advantage of the invention is the provision of an intake valve which is more durable than prior art designs.
Another object and advantage of the invention is the provision of an intake valve, which provides improved distribution of the incoming fuel/air charge.
A further object and advantage of the invention is the provision of an intake valve that provides an increase in velocity of the incoming fuel/air charge as it passes through the valve assembly.
Another object and advantage of the invention is the provision of an intake valve, which provides an increase in density of the incoming charge.
A further object of the invention is the provision of an intake valve, which recycles the unspent gases of the previous cycle back into the slipstream of the incoming charge.
12-30-2010, 10:45 PM #4
Looks like a patent disclosure statement to me.
I don't think it would work very well on PWC engines. It appears that the mass of the valve is MUCH higher than the flapper-type reed valves normally used. This means that it would not work very well at higher speeds, sort of like playing a recording of a bell or flute through a woofer.
One of the claims is improved atomization of the fuel/air mixture. I don't know if this is really necesary, or even a good idea. Remember that the main bearings are lubricated by small oil & gas droplets. If the mixing too good, it might not lubricate that well (don't know for sure, just a thought). I would think that a crankshaft spinning at 7000 RPM would tend to atomize the droplets pretty well.
Increased density of the incoming charge? Sounds like hogwash to me.
Recycles unspent gases into the slipstream of the incoming charge? More hogwash.
For a small engine application, I'm not impressed.
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