Title:
FULLY-CONTROLLED, FREE-PISTON ENGINE
Document Type and Number:
WIPO Patent Application WO2003023225
Kind Code:
B1
Abstract:
A free-piston engine includes at least one dual piston assembly, each of which has a pair of axially opposed combustion cylinders (12) and free-floating combustion pistons (13, 14) respectively mounted in the combustion cylinders for reciprocating linear motion responsive to successive combustions. A pumping piston (15, 16) extends from and is fixed to each of the combustion pistons and reciprocates within a hydraulic cylinder (17, 18) located between paired combustion cylinders. The paired combustion cylinders are rigidly connected by a cage (19) for reciprocating movement in tandem.
Inventors:
GRAY CHARLES L JR
Application Number:
PCT/US2002/025529
Publication Date:
July 24, 2003
Filing Date:
August 13, 2002
Export Citation:
Assignee:
US ENVIRONMENT (US)
International Classes:
F01B1/12; F01B31/14; F02B71/04; F04B17/05; F04B19/00; F02B1/12; (IPC1-7): F04B17/00; F04B35/00
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