Rapid response power conversion device

Internal-combustion engines – Free piston – Single chamber; one piston

Reexamination Certificate

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Reexamination Certificate

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06957631

ABSTRACT:
An apparatus and method for extracting energy from an internal combustion engine includes a chamber having a primary piston and a secondary piston with a combustion portion of the chamber situated adjacently between the primary piston and secondary piston. The secondary piston includes a substantially lesser mass than that of the primary piston. The chamber includes at least one fluid port for supplying fuel to the combustion portion and an out-take port for releasing combustive exhaust. The chamber includes a controller for controlling the combustion therein at selected cycles of the primary piston. The secondary piston is configured to draw a portion of energy from combustion controlled by the controller in the chamber. Such portion of energy is provided with a rapid response to an energy transferring portion interconnected to the secondary piston, which in turn, transfers and/or converts the energy for acting on a load or external application.

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patent: 6244226 (2001-06-01), Berlinger et al.
patent: 6626650 (2003-09-01), Kenchington et al.

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