Internal-combustion engines – Rotating cylinder – Radial
Patent
1996-08-16
1997-09-30
Okonsky, David A.
Internal-combustion engines
Rotating cylinder
Radial
123 44E, 123 542, F02B 5700
Patent
active
056717024
DESCRIPTION:
BRIEF SUMMARY
The subject invention concerns a valve system in accordance with the preamble of claim 1.
In SE-C-8803791-6 is described a four-stroke radial piston engine comprising a stationary housing, a drive shaft which is rotationally mounted essentially centrally inside said housing and which supports a hub rotating therewith, radially projecting cylinders which are mounted on the hub to co-rotate therewith, said cylinders being positioned inside a circumferentially extending chamber in said housing and each cylinder having a piston which is mounted for radial reciprocating movement inside its associated cylinder, the piston heads of said pistons facing radially inwards towards the hub, a circumferentially extending cam member mounted inside the housing in alignment with the pistons adjacent the radially outwardly extending piston ends and having a cam face facing said pistons, against which cam face abut bearing means mounted on each piston in order to impart a radial movement to said pistons in the direction towards the hub upon rotation relatively to the stationary housing of the rotary unit formed by the pistons, the cylinders, the hub, and the drive shaft, and a combustion chamber formed in said hub essentially in alignment with the head of each one of said pistons, which combustion chamber has valve-operated inlets and outlets for intake and exhaustion, respectively, of a combustion fuel-air mixture and combusted exhaust gases, whereby said pistons are imparted a radial motion away from the hub in response to the compression-induced increase of pressure and the centrifugal force, said inlets and the outlets to and from, respectively, each combustion chamber being formed in a valve ring which co-rotates with the hub and which is essentially concentric therewith, said valve ring sealingly abutting against a stationary port ring which is essentially concentric with the valve ring and which is connected to the housing, said port ring being formed with axial intake and exhaust ports communicating with inlet and outlet ducts, said axial intake and exhaust ports assuming, upon rotation of said rotary unit relatively to the housing, a position in alignment with that inlet and outlet formed in the valve ring that is associated with the respective combustion chamber, whereby the valve ring is yieldingly pressed into abutment against the port-ring.
In valve systems of this kind it has been found that medium flowing through the ports has a tendency to seep or leak into the plane of contact or junction between the valve ring and the port ring.
The main purpose of the invention is to further develop the valve device in such a manner that this drawback will be eliminated. This problem is solved in accordance with the teachings of the invention in that at least one of the two faces in sliding contact with each other on respectively the valve ring and the port ring is provided with recesses that are distributed across said face.
The invention will be described in closer detail in the following with reference to the accompanying drawings, illustrating an embodiment thereof which is particularly preferred at the moment. In the drawings,
FIG. 1 is a longitudinal sectional median view through a prior-art engine.
FIG. 2 is a perspective explosive view showing the various components incorporated in the valve system of FIG. 1.
FIGS. 3A and 3B are respectively a front view and a sectional view along line 3--3 in FIG. 3A of details of an ignition system incorporated in the engine in accordance with FIG. 1.
FIGS. 4A-7B are transverse and lengthwise sectional views showing the four cycles of the engine of FIG. 1 and the positions of the various components during these cycles, and
FIG. 8 illustrates in a manner corresponding to FIG. 2 a valve system in accordance with the invention in a perspective view.
The engine illustrated in the drawings is a four-stroke internal combustion engine pertaining to the group of multiple cylinder radial-piston engines. The internal combustion engine is indicated generally by numeral reference 1 and it co
REFERENCES:
patent: 3604406 (1971-09-01), Hottelet
patent: 3822681 (1974-07-01), Townsend
patent: 3828740 (1974-08-01), Townsend
patent: 3857372 (1974-12-01), Townsend
patent: 3874348 (1975-04-01), Townsend
patent: 3885533 (1975-05-01), Townsend
patent: 3967599 (1976-07-01), Townsend
patent: 4003351 (1977-01-01), Gunther
patent: 4112881 (1978-09-01), Townsend
patent: 4653438 (1987-03-01), Russell
patent: 5375564 (1994-12-01), Gail
Kesol Production AB
Okonsky David A.
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