F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
F02B 71/04 (2006.01) F04B 19/00 (2006.01)
Patent
CA 2457790
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.
L'invention concerne un moteur à pistons libres qui comporte au moins un ensemble à double piston comprenant une paire de cylindres de combustion axialement opposés (12) et des pistons de combustion flottants (13, 14) montés chacun dans les cylindres de combustion et animés d'un mouvement linéaire alternatif provoqué par les combustions successives. Un piston d'aspiration (15, 16) relié à chaque piston de combustion effectue un mouvement alternatif dans un cylindre hydraulique (17, 18) placé entre la paire de cylindres de combustion. Une cage (19) assure le couplage rigide de la paire de cylindres de combustion couplés qui se déplace en tandem selon un mouvement alternatif.
Hill & Schumacher
U.s. Environmental Protection Agency
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