Internal-combustion engines – Multiple piston – common nonrestrictive combustion chamber – Four-cycle
Patent
1999-01-11
2000-07-25
McMahon, Marguerite
Internal-combustion engines
Multiple piston, common nonrestrictive combustion chamber
Four-cycle
F02B 7506
Patent
active
060924934
ABSTRACT:
The present invention is for the kind of power machines, engines or compressors which have two or more pistons which work against each other preferably with a common combustion or compression chamber in a stationary cylinder and where the power is transmitted to a rotating movement without an intermediate crankshaft. It is an object of the present invention to obtain such power machine having a simple valve control means. One such device has two parallel plane discs, one stationary disc (8) and one relatively thereto rotating disc (13). The stationary disc (8) is mounted to a housing (9) and the disc (8) in turn has one in its centre positioned cylinder (1) with two end walls (2, 3). In the cylinder there are two pistons (4, 5) which are working pistons of a combustion engine and have a common combustion chamber. At the centre of the cylinder bore adjacent to the upper dead centres, UDC, of the pistons and at opposite sides thereof there are two valves (50, 51). The valve shafts at the ends which are turned only from the cylinder contact a controlling curve or surface (56) which is a part of the rotating disc. On the control curve there are raised parts (57, 58) at which the valve are opened when disc rotates.
REFERENCES:
patent: 1087240 (1914-02-01), Kellington
patent: 1252757 (1918-01-01), williams
patent: 1481727 (1924-01-01), Moore
patent: 1667213 (1928-04-01), Marchetti
patent: 3563223 (1971-02-01), Ishida
Derwent's Abstract, No. 940165211/20, week 9420, Abstract of SU, 1800103--Mar. 7, 1993.
Gul & Co Development AB
McMahon Marguerite
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