Internal-combustion engines – Rotary – With transfer means intermediate single compression volume...
Reexamination Certificate
1999-07-02
2001-05-15
Koczo, Michael (Department: 3746)
Internal-combustion engines
Rotary
With transfer means intermediate single compression volume...
C418S207000
Reexamination Certificate
active
06230681
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to engine-building industry and may be used in transportation industry.
From Inventor Certificate SU-81 474 a rotor-reciprocating combustion engine is known containing a body including two intersecting circular cylinders, two diameter opposite combustion chambers and two input/output channels, one pair of each per cylinder, a driving shaft, a piston shaft and a tooth gearing synchro system connecting the driving shaft with pistons.
The deficiency of this known device is its low reliability, too high mass/volume parameters, noncompactness, complication of design and maintenance, and a large number of elements which altogether prevents the pistons from being synchronized fully with each other.
Further from RU-A-1 772 372, it is known to provide a rotor-combustion engine with two intersecting circular cylinders with pistons inside, two diameter opposite input/output or inlet/outlet chambers, one pair of each per cylinder, a driving shaft and a synchro system consisting of two hinges each having a cylinder cam and a disk with a through hole, the axis thereof being perpendicular to the longitudinal axis of the cylinder, the body having a spherical cavity and two through diameter channels with conical sections, the driving shaft having a central spherical part, two opposite conical and two cylinder parts attended by corresponding sections of a body cavity. In the central sphere part of the driving shaft, there is a through slot tilted to the shaft axis and being perpendicular to the through hole containing the cylinder cam.
The deficiency of design of this known rotor-piston combustion engine is insufficient effectiveness or transforming mechanism.
The object of the present invention is to provide a combustion engine according to the opening portion of claim
1
which has an improved specific power, rotation moment, engine economy and balance of mechanism.
SUMMARY OF THE INVENTION
This object is achieved by claim
1
. Advantageous developments may be taken from the subclaims.
The invention provides a rotor-piston combustion engine containing two intersecting cylinders with pistons, two diametrically located ignition chambers and two inlet/outlet chambers, each pair per cylinder, a drive shaft, a piston synchro system consisting of two arcuate coupling devices, preferably hinges, each having a cylinder pin and disk, the body of the engine having a sphere cavity (central spherical cavity) and two through diameter channels (two cylindrical portions positioned diametrically opposite one another) with conical and two cylinder sections attended by corresponding sections of the body cavity.
The through slot (slot) in the central sphere section (spherical center portion) of the driving shaft is tilted to the shaft axis, through hole is perpendicular to the slot containing the cylinder cam. Additional arc pistons in intersecting two circular cylinders and corresponding two hinges and two additional slots are inclined to the longitudinal axis of the driving shaft, and are located symmetrically to each other in the central sphere section of the driving shaft, with the input/output windows being located on side walls of the circular cylinders.
The two pistons of the engine according to the invention are equivalent to eight pistons in a conventional combustion engine. The inventive engine has a very low vibration level due to excellent balancing since rotating masses are always in symmetrical position around the shaft, resulting in a twisting movement.
The engine according to the invention has a low revolution per minute for the same power. A free-wheel is unnecessary in view of the very smooth rotation of four strokes per revolution and since there are no dead centers at all.
Moreover, the shaft may be of very convenient and easy construction without requiring a crankshaft. The shaft is smoothly energized since no peak torque close to dead centers arises.
Same as with two-stroke engines, no valves, and thus, no camshaft is required.
The inventive engine requires only a very limited number of components which are all of very simple construction and easy to assemble. Thus, the manufacturing cost is low.
No piston rings are required, and no calibration and trimming since no valve and no camshaft exist. Due to the light construction, even with conventional materials a high power/weight ratio may be obtained. Moreover, there are only low idling turns, and the engine starts easily. Because of the improved carnot cycle, the thermodynamics are better, increasing the coefficient of filling to close to one. Thus, less pollution and less consumption and higher efficiency arises.
Typically, the maximum speed is about 2000 rpm such that the friction which is lower at lower speed is reduced, too.
Further details and advantages as well as features may be taken from the following detailed description of one embodiment of the invention with respect to the drawing.
REFERENCES:
patent: 3809022 (1974-05-01), Dean, Jr.
patent: 5293849 (1994-03-01), Huckert
patent: 0 091 975 (1983-10-01), None
patent: 365 105 (1906-09-01), None
patent: 1560730 (1990-04-01), None
patent: 1772375 (1992-10-01), None
patent: 91 14859 (1991-10-01), None
Borisov Eugenji
Kiseljev Alexander
Koczo Michael
Planetarische Motoren AG
Robert W. Becker & Associates
LandOfFree
Orbital engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orbital engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orbital engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2501705