U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Rotary cycloidal continuous toroidal chamber internal combustion engine

Patent 4026249 Issued on May 31, 1977. Estimated Expiration Date: Icon_subject May 31, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1452125

1568052

1665581

1726461

1973397

2126795

3256866

3299865

3385272

3396632

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Inventor

Application

No. 05/633251 filed on 11/19/1975

US Classes:

123/245, Alternately approaching and receding elements418/36Working member movement controlled by interengaging rotating members

Examiners

Primary: Freeh, William L.
Assistant: Koczo, Michael Jr.

Attorney, Agent or Firm

Foreign Application Priority Data

1973-03-14 ES

Abstract

A rotary internal combustion engine block has a toroidal combustion chamber of circular section. At least four pistons fitted in said chamber perform discontinuous unidirectional circular motion about the center of the toroidal combustion chamber. At various stations about the torus, an air-fuel mixture is introduced between adjacent pistons, the adjacent pistons approach each other resulting in compression of the air-fuel mixture, the mixture is ignited, and gas expansion drives the adjacent pistons apart. The mechanical energy of the pistons being moved apart by the gas expansion is coupled through a drive shaft to the load.

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