Control device for free piston engine and method for the same

Details Control device for free piston engine and method for the same Control device for free piston engine and method for the same

2007-08-21

2007-08-21

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Free piston

Single chamber; one piston

C123S0460SC

Reexamination Certificate

active

11298579

ABSTRACT:
A free piston engine has a pair of pistons opposing to each other and movable in a cylinder, to form a combustion chamber between the pistons. A mixed gas of air and fuel is supplied into the combustion chamber and the mixed gas is auto-ignited when it is compressed by the pistons. A temperature and/or an air-fuel ratio of the mixed gas, and/or a pressure in the combustion chamber is detected to control displacements of the pistons, so that the mixed gas is auto-ignited at an optimum timing to efficiently operate the free piston engine.

REFERENCES:
patent: 4491095 (1985-01-01), Coad
patent: 6276313 (2001-08-01), Yang et al.
patent: 6397793 (2002-06-01), Yang et al.
patent: 6945202 (2005-09-01), Kaneko et al.

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